ObjFW  Changes On Branch b84490ab4fcdac61

Legend:
 * Changes of existing features or bugfixes
 + New features

ObjFW 0.8 -> ObjFW 0.8.1, 04.10.2015
 * Adjust to __nullable / __nonnull being changed to _Nullable / _Nonnull in
   Clang 3.7 (this fixes compilation with Clang 3.7)
 * Blocks: Proper handling when called from a byref handler
 * Fix compilation on Solaris
 * Fix compilation for Wii, PSP and Nintendo DS
 * OFProcess: Send SIGTERM on close instead of SIGKILL
 * OFZIPArchive: Throw invalid format exception on failed seeks
 * Make sure of_hash_seed is never initialized to 0
 * Special cases for the Wii's weird network stack (fixes the tests)
 * Better length checks for write / send calls
 * Don't use -pedantic on platforms where it's broken by the system headers
 * Documentation fixes

ObjFW 0.7.1 -> ObjFW 0.8, 14.08.2015

 + An insanely huge amount of new APIs
 + New classes: OFHTTPServer, OFINICategory, OFINIFile, OFInflate64Stream,
   OFInflateStream, OFMapTable, OFRIPEMD160Hash, OFSHA224Hash, OFSHA256Hash,
   OFSHA384Hash, OFSHA512Hash, OFSettings, OFStdIOStream, OFSystemInfo,
   OFUDPSocket, OFZIPArchive, OFZIPArchiveEntry
 + New utils: ofzip, ofhash, ofhttp

Others
------

Basically, it should run on any POSIX system to which GCC 4 or a recent Clang
version has been ported. If not, please send an e-mail with a bug report.

If you successfully ran ObjFW on a platform not listed here, please send an
e-mail to js@heap.zone so it can be added here!

If you have a platform on which ObjFW does not work, please contact me as well!


Forwarding
==========

    $ pacman -S autoconf automake git make


Getting, building and installing ObjFW
--------------------------------------

  Start the MinGW-w64 Win32 or Win64 Shell (depening on what version you want
  to build - do *not* use the MSYS2 Shell shortcut, but use the MinGW-w64 Win32
  or Win64 Shell shortcut instead!) and check out ObjFW:

    $ git clone https://heap.zone/git/objfw.git

  You can also download a release tarball if you want. Now go to the newly
  checked out repository and build and install it:

    $ ./autogen.sh && ./configure && make -j16 install

  If everything was successfully, you can now build projects using ObjFW for
  Windows using the normal `objfw-compile` and friends.

ObjFW is a portable, lightweight framework for the Objective C language.
It enables you to write an application in Objective C that will run on
any platform supported by ObjFW without having to worry about
differences between operating systems or various frameworks that you
would otherwise need if you want to be portable.

See https://heap.zone/objfw for more information.


Installation
============

  To install ObjFW, just run the following commands:

  Raspberry Pi.


Bugs and feature requests
=========================

  If you find any bugs or have feature requests, feel free to send a
  mail to js@heap.zone!

AC_INIT(ObjFW, 0.8.2, js@heap.zone)
BUILDSYS_INIT

AS_IF([test configure.ac -nt configure], [
	AC_MSG_ERROR([configure.ac is newer than configure! Run ./autogen.sh!])
])

AC_CONFIG_SRCDIR(src)

AC_CANONICAL_HOST

dnl Used to disable checking for -pedantic on some platforms where it's broken
check_pedantic="yes"

case "$host" in
	*-msdosdjgpp*)
		enable_shared="no"
		enable_threads="no"
		enable_sockets="no"
		;;

		LIBS="$LIBS -L$DEVKITPSP/psp/sdk/lib -lpspdebug -lpspdisplay"
		LIBS="$LIBS -lpspge -lpspctrl -lpspsdk -lc -lpspnet"
		LIBS="$LIBS -lpspnet_inet -lpspnet_apctl -lpspnet_resolver"
		LIBS="$LIBS -lpsputility -lpspuser -lpspkernel"
		enable_shared="no"
		enable_threads="no"	# TODO
		enable_sockets="no"	# TODO
		check_pedantic="no"

		AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
		;;
esac

AC_LANG([Objective C])
AC_PROG_OBJC([clang gcc])

	OBJCFLAGS="$OBJCFLAGS -mthumb -mthumb-interwork"
	CPPFLAGS="$CPPFLAGS -DARM9 -I$DEVKITPRO/libnds/include"
	LDFLAGS="$LDFLAGS -specs=ds_arm9.specs"
	LIBS="$LIBS -L$DEVKITPRO/libnds/lib -lfilesystem -lfat -lnds9"
	enable_shared="no"
	enable_threads="no"	# TODO
	enable_sockets="no"	# TODO
	check_pedantic="no"

	AC_DEFINE(OF_NINTENDO_DS, 1,
		[Whether we are compiling for the Nintendo DS])
	AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
])

CPP="$OBJCPP"

])
test x"$have_asprintf" != x"yes" -a x"$ac_cv_snprintf_useful_ret" != x"yes" && \
	AC_MSG_ERROR(No asprintf and no snprintf returning required space!)

AC_CHECK_FUNCS([arc4random random], break)

AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl")
AC_CHECK_HEADERS_ONCE(dlfcn.h)
case "$host_os" in
	netbsd*)
		dnl dladdr exists on NetBSD, but it is completely broken.
		dnl When using it with code that uses __thread, it freezes the
		dnl process so that it has to be killed using SIGKILL.
		dnl When disabling __thread, it doesn't freeze, but all symbols
		dnl are wrong.

	AC_DEFINE(OF_HAVE_THREADS, 1, [Whether we have threads])
	AC_SUBST(USE_SRCS_THREADS, '${SRCS_THREADS}')

	AC_ARG_ENABLE(compiler-tls,
		AS_HELP_STRING([--disable-compiler-tls],
			[disable compiler thread local storage]))
	AS_IF([test x"$enable_compiler_tls" != x"no"], [
		AC_CHECK_HEADER(threads.h, [
			AC_DEFINE(OF_HAVE_THREADS_H, 1,
				[Whether we have threads.h])
		])

		AC_MSG_CHECKING(whether _Thread_local works)
		AC_TRY_LINK([
			static _Thread_local int x = 0;

	AC_CHECK_LIB(network, socket, LIBS="$LIBS -lnetwork")
	AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32")

	AC_CHECK_HEADER(sys/socket.h, [
		AC_DEFINE(OF_HAVE_SYS_SOCKET_H, 1,
			[Whether we have sys/socket.h])
	])
	AC_CHECK_HEADER(netinet/in.h, [
		AC_DEFINE(OF_HAVE_NETINET_IN_H, 1,
			[Whether we have netinet/in.h])
	])
	AC_CHECK_HEADER(netinet/tcp.h, [
		AC_DEFINE(OF_HAVE_NETINET_TCP_H, 1,
			[Whether we have netinet/tcp.h])
	])
	AC_CHECK_HEADERS([arpa/inet.h netdb.h])

	AC_CHECK_FUNCS([paccept accept4])

		;;
esac
AS_IF([test x"$have_processes" = x"yes"], [
	AC_SUBST(OFPROCESS_M, "OFProcess.m")
	AC_DEFINE(OF_HAVE_PROCESSES, 1, [Whether we have processes])
])

AC_CHECK_HEADERS_ONCE([sys/ioctl.h sys/termios.h])

AS_IF([test x"$objc_runtime" = x"Apple runtime"], [
	AC_CHECK_HEADER(Foundation/NSObject.h, [
		AC_SUBST(FOUNDATION_COMPAT_M, "foundation-compat.m")
		AC_SUBST(BRIDGE, "bridge")

		AS_IF([test x"$enable_shared" != x"no"], [

	], [
		AC_MSG_RESULT(yes)
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS"
	])

	AS_IF([test x"$check_pedantic" = x"yes"], [
		old_OBJCFLAGS="$OBJCFLAGS"
		OBJCFLAGS="$OBJCFLAGS -pedantic"
		AC_MSG_CHECKING(whether -pedantic is buggy)
		AC_TRY_COMPILE([
			#import <stdlib.h>

			#ifdef __has_attribute
			# if __has_attribute(objc_root_class)
			__attribute__((__objc_root_class__))
			# endif
			#endif
			@interface Foo
			{
				void *foo;
			}
			@end

			@interface Bar: Foo
			@end
		], [], [
			AC_MSG_RESULT(no)
		], [
			AC_MSG_RESULT(yes)
			OBJCFLAGS="$old_OBJCFLAGS"
		])
	])
])

AS_IF([test x"$cross_compiling" = x"yes"], [
	AC_SUBST(BIN_PREFIX, "${host_alias}-")

	case "$host" in

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFString.h"

#define COPYRIGHT \
    @"/*\n"								       \
    @" * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016\n" \
    @" *   Jonathan Schleifer <js@heap.zone>\n"				       \
    @" *\n"								       \
    @" * All rights reserved.\n"					       \
    @" *\n"								       \
    @" * This file is part of ObjFW. It may be distributed under the terms "   \
    @"of the\n"								       \
    @" * Q Public License 1.0, which can be found in the file LICENSE.QPL "    \
    @"included in\n"							       \
    @" * the packaging of this file.\n"					       \
    @" *\n"								       \
    @" * Alternatively, it may be distributed under the terms of the GNU "     \
    @"General\n"							       \
    @" * Public License, either version 2 or 3, which can be found in the "    \
    @"file\n"								       \
    @" * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the "	       \
    @"packaging of this\n"						       \
    @" * file.\n"							       \
    @" */\n"								       \
    @"\n"

SRCS_FILES = OFFile.m			\
	     OFINICategory.m		\
	     OFINIFile.m		\
	     OFSettings.m		\
	     OFZIPArchive.m		\
	     OFZIPArchiveEntry.m
SRCS_PLUGINS = OFPlugin.m
SRCS_SOCKETS = OFHTTPClient.m				\
	       OFHTTPRequest.m				\
	       OFHTTPResponse.m				\
	       OFHTTPServer.m				\
	       OFKernelEventObserver.m			\
	       OFKernelEventObserver_LockedQueue.m	\
	       OFStreamSocket.m				\
	       OFTCPSocket.m				\
	       OFUDPSocket.m				\
	       resolver.m				\
	       socket.m
SRCS_THREADS = OFCondition.m		\
	       OFMutex.m		\
	       OFRecursiveMutex.m	\
	       OFThreadPool.m		\
	       threading.m

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

	exit(0);
}

+ (void)terminateWithStatus: (int)status
{
#ifdef _PSP
	sceKernelExitGame();
	abort();	/* sceKernelExitGame() is not marked noreturn */
#else
	exit(status);
#endif
}

- init
{

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

{
	int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
	    OF_BLOCK_FIELD_IS_OBJECT | OF_BLOCK_FIELD_IS_BYREF);

	if (src_ == NULL)
		return;




	switch (flags) {
	case OF_BLOCK_FIELD_IS_BLOCK:
		*(of_block_literal_t**)dst_ = _Block_copy(src_);
		break;
	case OF_BLOCK_FIELD_IS_OBJECT:
		if (!(flags_ & OF_BLOCK_BYREF_CALLER))
			*(id*)dst_ = [(id)src_ retain];
		break;
	case OF_BLOCK_FIELD_IS_BYREF:;
		of_block_byref_t *src = (of_block_byref_t*)src_;
		of_block_byref_t **dst = (of_block_byref_t**)dst_;

		if ((src->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
			if ((*dst = malloc(src->size)) == NULL) {
				alloc_failed_exception.isa =
				    [OFAllocFailedException class];
				@throw (OFAllocFailedException*)
				    &alloc_failed_exception;
			}

			if (src->forwarding == src)
				(*dst)->forwarding = *dst;

			memcpy(*dst, src, src->size);

			if (src->flags & OF_BLOCK_HAS_COPY_DISPOSE)
				src->byref_keep(*dst, src);
		} else
			*dst = src;

		(*dst)->flags++;
		break;
	}
}

void
_Block_object_dispose(const void *obj_, const int flags_)
{
	const int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
	    OF_BLOCK_FIELD_IS_OBJECT | OF_BLOCK_FIELD_IS_BYREF);

	if (obj_ == NULL)
		return;




	switch (flags) {
	case OF_BLOCK_FIELD_IS_BLOCK:
		_Block_release(obj_);
		break;
	case OF_BLOCK_FIELD_IS_OBJECT:
		if (!(flags_ & OF_BLOCK_BYREF_CALLER))
			[(id)obj_ release];
		break;
	case OF_BLOCK_FIELD_IS_BYREF:;
		of_block_byref_t *obj = (of_block_byref_t*)obj_;

		if ((--obj->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
			if (obj->flags & OF_BLOCK_HAS_COPY_DISPOSE)
				obj->byref_dispose(obj);

			free(obj);
		}
		break;
	}
}

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

- (OFString*)dateStringWithFormat: (OFConstantString*)format
{
	OFString *ret;
	time_t seconds = (time_t)_seconds;
	struct tm tm;
	size_t pageSize;
#ifndef _WIN32
	char *buffer;
#else
	wchar_t *buffer;
#endif

	if (seconds != floor(_seconds))
		@throw [OFOutOfRangeException exception];

#ifdef HAVE_GMTIME_R
	if (gmtime_r(&seconds, &tm) == NULL)
		@throw [OFOutOfRangeException exception];

# endif
#endif

	pageSize = [OFSystemInfo pageSize];
	buffer = [self allocMemoryWithSize: pageSize];

	@try {
#ifndef _WIN32
		if (strftime(buffer, pageSize, [format UTF8String], &tm) == 0)
			@throw [OFOutOfRangeException exception];

		ret = [OFString stringWithUTF8String: buffer];
#else
		if (wcsftime(buffer, pageSize / sizeof(wchar_t),
		    [format UTF16String], &tm) == 0)
			@throw [OFOutOfRangeException exception];

		ret = [OFString stringWithUTF16String: buffer];
#endif
	} @finally {
		[self freeMemory: buffer];
	}

	return ret;
}

- (OFString*)localDateStringWithFormat: (OFConstantString*)format
{
	OFString *ret;
	time_t seconds = (time_t)_seconds;
	struct tm tm;
	size_t pageSize;
#ifndef _WIN32
	char *buffer;
#else
	wchar_t *buffer;
#endif

	if (seconds != floor(_seconds))
		@throw [OFOutOfRangeException exception];

#ifdef HAVE_LOCALTIME_R
	if (localtime_r(&seconds, &tm) == NULL)
		@throw [OFOutOfRangeException exception];

# endif
#endif

	pageSize = [OFSystemInfo pageSize];
	buffer = [self allocMemoryWithSize: pageSize];

	@try {
#ifndef _WIN32
		if (strftime(buffer, pageSize, [format UTF8String], &tm) == 0)
			@throw [OFOutOfRangeException exception];

		ret = [OFString stringWithUTF8String: buffer];
#else
		if (wcsftime(buffer, pageSize / sizeof(wchar_t),
		    [format UTF16String], &tm) == 0)
			@throw [OFOutOfRangeException exception];

		ret = [OFString stringWithUTF16String: buffer];
#endif
	} @finally {
		[self freeMemory: buffer];
	}

	return ret;
}

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

 * @param path The new directory to change to
 */
+ (void)changeCurrentDirectoryPath: (OFString*)path;

/*!
 * @brief Returns the size of the specified file.
 *
 * @param path The path to the file whose path should be returned
 *
 * @return The size of the specified file
 */
+ (of_offset_t)sizeOfFileAtPath: (OFString*)path;

/*!
 * @brief Returns the last access time of the specified item.
 *
 * @param path The path to the file whose last access time should be returned
 *
 * @return The last access time of the specified item
 */
+ (OFDate*)accessTimeOfItemAtPath: (OFString*)path;

/*!
 * @brief Returns the last modification time of the specified item.
 *
 * @param path The path to the file whose last modification time should be
 *	       returned
 *
 * @return The last modification time of the specified item
 */
+ (OFDate*)modificationTimeOfItemAtPath: (OFString*)path;

/*!
 * @brief Returns the last status change time of the specified item.
 *
 * @param path The path to the file whose last status change time should be
 *	       returned
 *
 * @return The last status change time of the specified item
 */
+ (OFDate*)statusChangeTimeOfItemAtPath: (OFString*)path;

#ifdef OF_HAVE_CHMOD
/*!
 * @brief Changes the permissions of an item.
 *

+ (void)createSymbolicLinkAtPath: (OFString*)destination
	     withDestinationPath: (OFString*)source;

/*!
 * @brief Returns the destination of the symbolic link at the specified path.
 *
 * @param path The path to the symbolic link
 *
 * @return The destination of the symbolic link at the specified path
 */
+ (OFString*)destinationOfSymbolicLinkAtPath: (OFString*)path;
#endif

/*!
 * @brief Initializes an already allocated OFFile.

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

#ifdef __wii__
# define BOOL OGC_BOOL
# include <fat.h>
# undef BOOL
#endif

#ifdef OF_NINTENDO_DS
# include <stdbool.h>
# include <filesystem.h>
#endif

#import "OFFile.h"
#import "OFString.h"
#import "OFArray.h"
#ifdef OF_HAVE_THREADS

# define S_IWOTH 0
#endif

#define DEFAULT_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
#define DIR_MODE DEFAULT_MODE | S_IXUSR | S_IXGRP | S_IXOTH

#if defined(OF_HAVE_CHOWN) && defined(OF_HAVE_THREADS)
static of_mutex_t chownMutex;
#endif
#if !defined(HAVE_READDIR_R) && !defined(_WIN32) && defined(OF_HAVE_THREADS)
static of_mutex_t readdirMutex;
#endif

int
of_stat(OFString *path, of_stat_t *buffer)
{
#if defined(_WIN32)
	return _wstat64([path UTF16String], buffer);

@implementation OFFile
+ (void)initialize
{
	if (self != [OFFile class])
		return;

#if defined(OF_HAVE_CHOWN) && defined(OF_HAVE_THREADS)
	if (!of_mutex_new(&chownMutex))
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
#endif

#if !defined(HAVE_READDIR_R) && !defined(_WIN32) && defined(OF_HAVE_THREADS)
	if (!of_mutex_new(&readdirMutex))
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
#endif

#ifdef __wii__
	if (!fatInitDefault())
		@throw [OFInitializationFailedException

	encoding = [OFSystemInfo native8BitEncoding];

	if ((dir = opendir([path cStringWithEncoding: encoding])) == NULL)
		@throw [OFOpenItemFailedException exceptionWithPath: path
							      errNo: errno];

# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
	if (!of_mutex_lock(&readdirMutex))
		@throw [OFLockFailedException exception];
# endif

	@try {
		for (;;) {
			struct dirent *dirent;
# ifdef HAVE_READDIR_R

			[files addObject: file];

			objc_autoreleasePoolPop(pool);
		}
	} @finally {
		closedir(dir);
# if !defined(HAVE_READDIR_R) && defined(OF_HAVE_THREADS)
		if (!of_mutex_unlock(&readdirMutex))
			@throw [OFUnlockFailedException exception];
# endif
	}
#else
	void *pool = objc_autoreleasePoolPush();
	HANDLE handle;
	WIN32_FIND_DATAW fd;

	if (path == nil || (owner == nil && group == nil))
		@throw [OFInvalidArgumentException exception];

	encoding = [OFSystemInfo native8BitEncoding];

# ifdef OF_HAVE_THREADS
	if (!of_mutex_lock(&chownMutex))
		@throw [OFLockFailedException exception];

	@try {
# endif
		if (owner != nil) {
			struct passwd *passwd;

						group: group
						errNo: errno];

			gid = group_->gr_gid;
		}
# ifdef OF_HAVE_THREADS
	} @finally {
		if (!of_mutex_unlock(&chownMutex))
			@throw [OFUnlockFailedException exception];
	}
# endif

	if (chown([path cStringWithEncoding: encoding], uid, gid) != 0)
		@throw [OFChangeOwnerFailedException exceptionWithPath: path
								 owner: owner

		     length: (size_t)length
{
	if (_fd == -1 || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

#ifndef _WIN32
	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, length) != (ssize_t)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#else
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, (int)length) != (int)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#endif
}

- (of_offset_t)lowlevelSeekToOffset: (of_offset_t)offset

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

		    exceptionWithVersion: version];

	status = (int)[[line substringWithRange: of_range(9, 3)] decimalValue];

	serverHeaders = [OFMutableDictionary dictionary];

	for (;;) {
		OFString *key, *value, *old;
		const char *lineC, *tmp;
		char *keyC;

		@try {
			line = [socket readLine];
		} @catch (OFInvalidEncodingException *e) {
			@throw [OFInvalidServerReplyException exception];

		do {
			tmp++;
		} while (*tmp == ' ');

		value = [OFString stringWithUTF8String: tmp];

		old = [serverHeaders objectForKey: key];
		if (old != nil)
			value = [old stringByAppendingFormat: @",%@", value];

		[serverHeaders setObject: value
				  forKey: key];
	}

	[serverHeaders makeImmutable];

	if ([_delegate respondsToSelector:

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

	_state = PARSING_HEADERS;

	return true;
}

- (bool)parseHeaders: (OFString*)line
{
	OFString *key, *value, *old;
	size_t pos;

	if ([line length] == 0) {
		intmax_t contentLength;

		@try {
			contentLength = [[_headers

	key = [line substringWithRange: of_range(0, pos)];
	value = [line substringWithRange:
	    of_range(pos + 1, [line length] - pos - 1)];

	key = normalizedKey([key stringByDeletingTrailingWhitespaces]);
	value = [value stringByDeletingLeadingWhitespaces];

	old = [_headers objectForKey: key];
	if (old != nil)
		value = [old stringByAppendingFormat: @",%@", value];

	[_headers setObject: value
		     forKey: key];

	if ([key isEqual: @"Host"]) {
		pos = [value
		    rangeOfString: @":"
			  options: OF_STRING_SEARCH_BACKWARDS].location;

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFKernelEventObserver.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFKernelEventObserver (OF_PRIVATE_CATEGORY)





- (bool)OF_processReadBuffers;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"

#import "socket.h"

OF_ASSUME_NONNULL_BEGIN

@class OFMutableArray OF_GENERIC(ObjectType);

@class OFDate;
#ifdef OF_HAVE_THREADS
@class OFMutex;
#endif


/*!
 * @protocol OFKernelEventObserverDelegate
 *	     OFKernelEventObserver.h ObjFW/OFKernelEventObserver.h
 *
 * @brief A protocol that needs to be implemented by delegates for
 *	  OFKernelEventObserver.

 */
@interface OFKernelEventObserver: OFObject
{
	OFMutableArray OF_GENERIC(id <OFReadyForReadingObserving>)
	    *_readObjects;
	OFMutableArray OF_GENERIC(id <OFReadyForWritingObserving>)
	    *_writeObjects;


	id <OFKernelEventObserverDelegate> _delegate;
#ifdef OF_HAVE_PIPE
	int _cancelFD[2];
#else
	of_socket_t _cancelFD[2];
	struct sockaddr_in _cancelAddr;
#endif

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#define __NO_EXT_QNX

#include "config.h"



#import "OFKernelEventObserver.h"
#import "OFKernelEventObserver+Private.h"
#import "OFArray.h"

#import "OFStream.h"
#import "OFStream+Private.h"

#ifndef OF_HAVE_PIPE
# import "OFStreamSocket.h"
#endif
#import "OFDate.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif


#ifdef HAVE_KQUEUE
# import "OFKernelEventObserver_kqueue.h"
#endif
#ifdef HAVE_EPOLL
# import "OFKernelEventObserver_epoll.h"
#endif

#import "OFInitializationFailedException.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfRangeException.h"

#import "socket.h"
#import "socket_helpers.h"

#ifdef __wii__
/* FIXME: Add a port registry for Wii */
static uint16_t freePort = 65535;
#endif







@implementation OFKernelEventObserver
+ (void)initialize
{
	if (self != [OFKernelEventObserver class])
		return;

	@try {
#if !defined(OF_HAVE_PIPE) && !defined(__wii__)
		socklen_t cancelAddrLen;
#endif

		_readObjects = [[OFMutableArray alloc] init];
		_writeObjects = [[OFMutableArray alloc] init];




#ifdef OF_HAVE_PIPE
		if (pipe(_cancelFD))
			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];
#else
		_cancelFD[0] = _cancelFD[1] = socket(AF_INET, SOCK_DGRAM, 0);

		if (_cancelFD[0] == INVALID_SOCKET)
			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];

		_cancelAddr.sin_family = AF_INET;
		_cancelAddr.sin_port = 0;
		_cancelAddr.sin_addr.s_addr = inet_addr("127.0.0.1");

# ifdef __wii__
		_cancelAddr.sin_len = 8;
		/* The Wii does not accept port 0 as "choose any free port" */
		_cancelAddr.sin_port = freePort--;
# endif

		if (bind(_cancelFD[0], (struct sockaddr*)&_cancelAddr,
		    sizeof(_cancelAddr)))
			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];

{
	close(_cancelFD[0]);
	if (_cancelFD[1] != _cancelFD[0])
		close(_cancelFD[1]);

	[_readObjects release];
	[_writeObjects release];


#ifdef OF_HAVE_THREADS
	[_mutex release];
#endif

	[super dealloc];
}

- (id <OFKernelEventObserverDelegate>)delegate
{
	return _delegate;
}

- (void)setDelegate: (id <OFKernelEventObserverDelegate>)delegate
{
	_delegate = delegate;
}

- (void)addObjectForReading: (id <OFReadyForReadingObserving>)object
{





	OF_UNRECOGNIZED_SELECTOR






}




- (void)addObjectForWriting: (id <OFReadyForWritingObserving>)object
{





	OF_UNRECOGNIZED_SELECTOR






}




- (void)removeObjectForReading: (id <OFReadyForReadingObserving>)object
{





	OF_UNRECOGNIZED_SELECTOR









}

- (void)removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{



















	OF_UNRECOGNIZED_SELECTOR






































































}

- (void)observe
{
	[self observeForTimeInterval: -1];
}

}

- (void)cancel
{
#ifdef OF_HAVE_PIPE
	OF_ENSURE(write(_cancelFD[1], "", 1) > 0);
#else
# ifndef __wii__
	OF_ENSURE(sendto(_cancelFD[1], "", 1, 0,
	    (struct sockaddr*)&_cancelAddr, sizeof(_cancelAddr)) > 0);
# else
	OF_ENSURE(sendto(_cancelFD[1], "", 1, 0,
	    (struct sockaddr*)&_cancelAddr, 8) > 0);
# endif
#endif
}

- (bool)OF_processReadBuffers
{
	id const *objects = [_readObjects objects];
	size_t i, count = [_readObjects count];
	bool foundInReadBuffer = false;

	for (i = 0; i < count; i++) {
		void *pool = objc_autoreleasePoolPush();

		if ([objects[i] isKindOfClass: [OFStream class]] &&
		    [objects[i] hasDataInReadBuffer] &&
		    ![objects[i] OF_isWaitingForDelimiter]) {
			if ([_delegate respondsToSelector:
			    @selector(objectIsReadyForReading:)])
				[_delegate objectIsReadyForReading: objects[i]];

			foundInReadBuffer = true;
		}

		objc_autoreleasePoolPop(pool);
	}

	/*
	 * As long as we have data in the read buffer for any stream, we don't
	 * want to block.
	 */
	return foundInReadBuffer;
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFKernelEventObserver.h"

OF_ASSUME_NONNULL_BEGIN

@class OFMutableArray OF_GENERIC(ObjectType);
@class OFDataArray;

@interface OFKernelEventObserver_LockedQueue: OFKernelEventObserver
{
	OFDataArray *_queueActions, *_queueFDs;
	OFMutableArray *_queueObjects;
}

- (void)OF_addObjectForReading: (id)object
		fileDescriptor: (int)fd;
- (void)OF_addObjectForWriting: (id)object
		fileDescriptor: (int)fd;
- (void)OF_removeObjectForReading: (id)object
		   fileDescriptor: (int)fd;
- (void)OF_removeObjectForWriting: (id)object
		   fileDescriptor: (int)fd;
- (void)OF_processQueue;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFKernelEventObserver_LockedQueue.h"
#import "OFArray.h"
#import "OFDataArray.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif

#import "OFInitializationFailedException.h"

enum {
	QUEUE_ADD = 0,
	QUEUE_REMOVE = 1,
	QUEUE_READ = 0,
	QUEUE_WRITE = 2
};
#define QUEUE_ACTION (QUEUE_ADD | QUEUE_REMOVE)

@implementation OFKernelEventObserver_LockedQueue
- init
{
	self = [super init];

	@try {
		_queueActions = [[OFDataArray alloc]
		    initWithItemSize: sizeof(int)];
		_queueFDs = [[OFDataArray alloc] initWithItemSize: sizeof(int)];
		_queueObjects = [[OFMutableArray alloc] init];
	} @catch (id e) {
		@throw [OFInitializationFailedException
		    exceptionWithClass: [self class]];
	}

	return self;
}

- (void)dealloc
{
	[_queueActions release];
	[_queueFDs release];
	[_queueObjects release];

	[super dealloc];
}

- (void)addObjectForReading: (id <OFReadyForReadingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int qi = QUEUE_ADD | QUEUE_READ;
		int fd = [object fileDescriptorForReading];

		[_queueActions addItem: &qi];
		[_queueFDs addItem: &fd];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int qi = QUEUE_ADD | QUEUE_WRITE;
		int fd = [object fileDescriptorForWriting];

		[_queueActions addItem: &qi];
		[_queueFDs addItem: &fd];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int qi = QUEUE_REMOVE | QUEUE_READ;
		int fd = [object fileDescriptorForReading];

		[_queueActions addItem: &qi];
		[_queueFDs addItem: &fd];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int qi = QUEUE_REMOVE | QUEUE_WRITE;
		int fd = [object fileDescriptorForWriting];

		[_queueActions addItem: &qi];
		[_queueFDs addItem: &fd];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)OF_addObjectForReading: (id)object
		fileDescriptor: (int)fd
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)OF_addObjectForWriting: (id)object
		fileDescriptor: (int)fd
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)OF_removeObjectForReading: (id)object
		   fileDescriptor: (int)fd
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)OF_removeObjectForWriting: (id)object
		   fileDescriptor: (int)fd
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)OF_processQueue
{
	void *pool = objc_autoreleasePoolPush();

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int *queueActions = [_queueActions items];
		int *queueFDs = [_queueFDs items];
		id const *queueObjects = [_queueObjects objects];
		size_t i, count = [_queueActions count];

		OF_ENSURE([_queueFDs count] == count);
		OF_ENSURE([_queueObjects count] == count);

		for (i = 0; i < count; i++) {
			int action = queueActions[i];
			int fd = queueFDs[i];
			id object = queueObjects[i];

			switch (action) {
			case QUEUE_ADD | QUEUE_READ:
				[_readObjects addObject: object];

				[self OF_addObjectForReading: object
					      fileDescriptor: fd];

				break;
			case QUEUE_ADD | QUEUE_WRITE:
				[_writeObjects addObject: object];

				[self OF_addObjectForWriting: object
					      fileDescriptor: fd];

				break;
			case QUEUE_REMOVE | QUEUE_READ:
				[self OF_removeObjectForReading: object
						 fileDescriptor: fd];

				[_readObjects removeObjectIdenticalTo: object];

				break;
			case QUEUE_REMOVE | QUEUE_WRITE:
				[self OF_removeObjectForWriting: object
						 fileDescriptor: fd];

				[_writeObjects removeObjectIdenticalTo: object];

				break;
			default:
				OF_ENSURE(0);
			}
		}

		[_queueActions removeAllItems];
		[_queueFDs removeAllItems];
		[_queueObjects removeAllObjects];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	objc_autoreleasePoolPop(pool);
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

#include <unistd.h>

#include <sys/epoll.h>

#import "OFKernelEventObserver.h"
#import "OFKernelEventObserver+Private.h"
#import "OFKernelEventObserver_epoll.h"
#import "OFArray.h"
#import "OFMapTable.h"
#import "OFNull.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif

#import "OFInitializationFailedException.h"
#import "OFObserveFailedException.h"

#define EVENTLIST_SIZE 64

static const of_map_table_functions_t mapFunctions = { NULL };

	[super dealloc];
}

- (void)OF_addObject: (id)object
      fileDescriptor: (int)fd
	      events: (int)addEvents
	objectsArray: (OFMutableArray*)objectsArray
{

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		struct epoll_event event;
		intptr_t events;








		events = (intptr_t)[_FDToEvents

		    valueForKey: (void*)(intptr_t)fd];



		memset(&event, 0, sizeof(event));
		event.events = (int)events | addEvents;
		event.data.ptr = object;

		[objectsArray addObject: object];

		if (epoll_ctl(_epfd,
		    (events == 0 ? EPOLL_CTL_ADD : EPOLL_CTL_MOD),
		    fd, &event) == -1) {
			[objectsArray removeObjectIdenticalTo: object];
			@throw [OFObserveFailedException
			    exceptionWithObserver: self
					    errNo: errno];
		}

		[_FDToEvents setValue: (void*)(events | addEvents)
			       forKey: (void*)(intptr_t)fd];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif
}

- (void)OF_removeObject: (id)object
	 fileDescriptor: (int)fd
		 events: (int)removeEvents
	   objectsArray: (OFMutableArray*)objectsArray
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		intptr_t events;

		events = (intptr_t)[_FDToEvents
		    valueForKey: (void*)(intptr_t)fd];
		events &= ~removeEvents;

		if (events == 0) {
			if (epoll_ctl(_epfd, EPOLL_CTL_DEL, fd, NULL) == -1)
				@throw [OFObserveFailedException
				    exceptionWithObserver: self
						    errNo: errno];

			[_FDToEvents removeValueForKey: (void*)(intptr_t)fd];
		} else {
			struct epoll_event event;

			memset(&event, 0, sizeof(event));
			event.events = (int)events;
			event.data.ptr = object;

			if (epoll_ctl(_epfd, EPOLL_CTL_MOD, fd, &event) == -1)
				@throw [OFObserveFailedException
				    exceptionWithObserver: self
						    errNo: errno];

			[_FDToEvents setValue: (void*)events
				       forKey: (void*)(intptr_t)fd];
		}

		[objectsArray removeObjectIdenticalTo: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif
}

- (void)addObjectForReading: (id <OFReadyForReadingObserving>)object
{
	[self OF_addObject: object
	    fileDescriptor: [object fileDescriptorForReading]
		    events: EPOLLIN
	      objectsArray: _readObjects];
}

- (void)addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
	[self OF_addObject: object
	    fileDescriptor: [object fileDescriptorForWriting]
		    events: EPOLLOUT
	      objectsArray: _writeObjects];
}

- (void)removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
	[self OF_removeObject: object
	       fileDescriptor: [object fileDescriptorForReading]
		       events: EPOLLIN
		 objectsArray: _readObjects];
}

- (void)removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
	[self OF_removeObject: object
	       fileDescriptor: [object fileDescriptorForWriting]
		       events: EPOLLOUT
		 objectsArray: _writeObjects];
}

- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{
	OFNull *nullObject = [OFNull null];

	struct epoll_event eventList[EVENTLIST_SIZE];
	int i, events;


	if ([self OF_processReadBuffers])
		return;


	events = epoll_wait(_epfd, eventList, EVENTLIST_SIZE,
	    (timeInterval != -1 ? timeInterval * 1000 : -1));

	if (events < 0)
		@throw [OFObserveFailedException exceptionWithObserver: self
								 errNo: errno];

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

@class OFDataArray;
@class OFMutableArray OF_GENERIC(ObjectType);

@interface OFKernelEventObserver_kqueue: OFKernelEventObserver
{
	int _kernelQueue;


}
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

#include <sys/time.h>

#import "OFKernelEventObserver.h"
#import "OFKernelEventObserver+Private.h"
#import "OFKernelEventObserver_kqueue.h"
#import "OFDataArray.h"
#import "OFArray.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif

#import "OFInitializationFailedException.h"
#import "OFObserveFailedException.h"
#import "OFOutOfRangeException.h"

#define EVENTLIST_SIZE 64

			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];

		if ((flags = fcntl(_kernelQueue, F_GETFD, 0)) != -1)
			fcntl(_kernelQueue, F_SETFD, flags | FD_CLOEXEC);
#endif



		EV_SET(&event, _cancelFD[0], EVFILT_READ, EV_ADD, 0, 0, 0);



		if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	close(_kernelQueue);




	[super dealloc];
}

- (void)addObjectForReading: (id <OFReadyForReadingObserving>)object
{
	struct kevent event;




	memset(&event, 0, sizeof(event));
	event.ident = [object fileDescriptorForReading];
	event.filter = EVFILT_READ;
	event.flags = EV_ADD;
#ifndef __NetBSD__
	event.udata = object;
#else
	event.udata = (intptr_t)object;
#endif

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		[_readObjects addObject: object];

		if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0) {
			[_readObjects removeObjectIdenticalTo: object];
			@throw [OFObserveFailedException
			    exceptionWithObserver: self
					    errNo: errno];
		}
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif
}

- (void)addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
	struct kevent event;




	memset(&event, 0, sizeof(event));
	event.ident = [object fileDescriptorForWriting];
	event.filter = EVFILT_WRITE;
	event.flags = EV_ADD;
#ifndef __NetBSD__
	event.udata = object;
#else
	event.udata = (intptr_t)object;
#endif

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		[_writeObjects addObject: object];

		if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0) {
			[_writeObjects removeObjectIdenticalTo: object];
			@throw [OFObserveFailedException
			    exceptionWithObserver: self
					    errNo: errno];
		}
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif
}

- (void)removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
	struct kevent event;

	memset(&event, 0, sizeof(event));
	event.ident = [object fileDescriptorForReading];
	event.filter = EVFILT_READ;
	event.flags = EV_DELETE;

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
			@throw [OFObserveFailedException
			    exceptionWithObserver: self
					    errNo: errno];

		[_readObjects removeObjectIdenticalTo: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif
}

- (void)removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
	struct kevent event;

	memset(&event, 0, sizeof(event));
	event.ident = [object fileDescriptorForWriting];
	event.filter = EVFILT_WRITE;
	event.flags = EV_DELETE;

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
			@throw [OFObserveFailedException
			    exceptionWithObserver: self
					    errNo: errno];

		[_writeObjects removeObjectIdenticalTo: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif
}

- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{

	struct timespec timeout;
	struct kevent eventList[EVENTLIST_SIZE];
	int i, events;

	if ([self OF_processReadBuffers])
		return;

	timeout.tv_sec = (time_t)timeInterval;
	timeout.tv_nsec = lrint((timeInterval - timeout.tv_sec) * 1000000000);











	events = kevent(_kernelQueue, NULL, 0, eventList, EVENTLIST_SIZE,

	    (timeInterval != -1 ? &timeout : NULL));

	if (events < 0)
		@throw [OFObserveFailedException exceptionWithObserver: self
								 errNo: errno];

	for (i = 0; i < events; i++) {
		void *pool;


		if (eventList[i].flags & EV_ERROR)
			@throw [OFObserveFailedException
			    exceptionWithObserver: self
					    errNo: (int)eventList[i].data];

		if (eventList[i].ident == _cancelFD[0]) {
			char buffer;

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFKernelEventObserver_LockedQueue.h"

OF_ASSUME_NONNULL_BEGIN

@class OFDataArray;

@interface OFKernelEventObserver_poll: OFKernelEventObserver_LockedQueue
{
	OFDataArray *_FDs;
	size_t _maxFD;
	id __unsafe_unretained *_FDToObject;
}
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

			break;
		}
	}
}

- (void)OF_addObjectForReading: (id)object
		fileDescriptor: (int)fd
{
	[self OF_addObject: object
	    fileDescriptor: fd
		    events: POLLIN];
}

- (void)OF_addObjectForWriting: (id)object
		fileDescriptor: (int)fd
{
	[self OF_addObject: object
	    fileDescriptor: fd
		    events: POLLOUT];
}

- (void)OF_removeObjectForReading: (id)object
		   fileDescriptor: (int)fd
{
	[self OF_removeObject: object
	       fileDescriptor: fd
		       events: POLLIN];
}

- (void)OF_removeObjectForWriting: (id)object
		   fileDescriptor: (int)fd
{
	[self OF_removeObject: object
	       fileDescriptor: fd
		       events: POLLOUT];
}

- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{

	struct pollfd *FDs;
	int events;
	size_t i, nFDs;

	[self OF_processQueue];

	if ([self OF_processReadBuffers])
		return;


	FDs = [_FDs items];
	nFDs = [_FDs count];

#ifdef OPEN_MAX
	if (nFDs > OPEN_MAX)
		@throw [OFOutOfRangeException exception];
#endif

	events = poll(FDs, (nfds_t)nFDs,
	    (int)(timeInterval != -1 ? timeInterval * 1000 : -1));

	if (events < 0)
		@throw [OFObserveFailedException exceptionWithObserver: self
								 errNo: errno];

	for (i = 0; i < nFDs; i++) {
		assert(FDs[i].fd <= _maxFD);

		if (FDs[i].revents & POLLIN) {
			void *pool;

			if (FDs[i].fd == _cancelFD[0]) {
				char buffer;

#ifdef OF_HAVE_PIPE
				OF_ENSURE(read(_cancelFD[0], &buffer, 1) == 1);
#else
				OF_ENSURE(recvfrom(_cancelFD[0], &buffer, 1,
				    0, NULL, NULL) == 1);
#endif
				FDs[i].revents = 0;

				continue;
			}

			pool = objc_autoreleasePoolPush();

			if ([_delegate respondsToSelector:
			    @selector(objectIsReadyForReading:)])
				[_delegate objectIsReadyForReading:
				    _FDToObject[FDs[i].fd]];

			objc_autoreleasePoolPop(pool);
		}

		if (FDs[i].revents & POLLOUT) {
			void *pool = objc_autoreleasePoolPush();

			if ([_delegate respondsToSelector:
			    @selector(objectIsReadyForWriting:)])
				[_delegate objectIsReadyForWriting:
				    _FDToObject[FDs[i].fd]];

			objc_autoreleasePoolPop(pool);
		}

		FDs[i].revents = 0;
	}
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

# define __STDC_CONSTANT_MACROS
#endif

#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif

#import "OFKernelEventObserver_LockedQueue.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFKernelEventObserver_select: OFKernelEventObserver_LockedQueue
{
	fd_set _readFDs, _writeFDs;
	int _maxFD;
}
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

	_maxFD = (int)_cancelFD[0];

	return self;
}

- (void)OF_addObjectForReading: (id)object

		fileDescriptor: (int)fd
{
	if (fd < 0 || fd > INT_MAX - 1)
		@throw [OFOutOfRangeException exception];

#ifndef _WIN32
	if (fd >= FD_SETSIZE)
		@throw [OFOutOfRangeException exception];
#endif

	if (fd > _maxFD)
		_maxFD = fd;

	FD_SET(fd, &_readFDs);
}

- (void)OF_addObjectForWriting: (id)object

		fileDescriptor: (int)fd
{
	if (fd < 0 || fd > INT_MAX - 1)
		@throw [OFOutOfRangeException exception];

#ifndef _WIN32
	if (fd >= FD_SETSIZE)
		@throw [OFOutOfRangeException exception];
#endif

	if (fd > _maxFD)
		_maxFD = fd;

	FD_SET(fd, &_writeFDs);
}

- (void)OF_removeObjectForReading: (id)object
		   fileDescriptor: (int)fd
{
	/* TODO: Adjust _maxFD */

	if (fd < 0)
		@throw [OFOutOfRangeException exception];

#ifndef _WIN32
	if (fd >= FD_SETSIZE)
		@throw [OFOutOfRangeException exception];
#endif

	FD_CLR(fd, &_readFDs);
}

- (void)OF_removeObjectForWriting: (id)object
		   fileDescriptor: (int)fd
{
	/* TODO: Adjust _maxFD */

	if (fd < 0)
		@throw [OFOutOfRangeException exception];

#ifndef _WIN32
	if (fd >= FD_SETSIZE)
		@throw [OFOutOfRangeException exception];
#endif

	FD_CLR(fd, &_writeFDs);
}

- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{

	id const *objects;
	fd_set readFDs;
	fd_set writeFDs;
	struct timeval timeout;
	int events;
	size_t i, count;

	[self OF_processQueue];

	if ([self OF_processReadBuffers])
		return;


#ifdef FD_COPY
	FD_COPY(&_readFDs, &readFDs);
	FD_COPY(&_writeFDs, &writeFDs);
#else
	readFDs = _readFDs;
	writeFDs = _writeFDs;

	if (events < 0)
		@throw [OFObserveFailedException exceptionWithObserver: self
								 errNo: errno];

	if (FD_ISSET(_cancelFD[0], &readFDs)) {
		char buffer;

#ifdef OF_HAVE_PIPE
		OF_ENSURE(read(_cancelFD[0], &buffer, 1) == 1);
#else
		OF_ENSURE(recvfrom(_cancelFD[0], &buffer, 1, 0, NULL,
		    NULL) == 1);
#endif
	}

	objects = [_readObjects objects];
	count = [_readObjects count];

	for (i = 0; i < count; i++) {


		void *pool = objc_autoreleasePoolPush();
		int fd = [objects[i] fileDescriptorForReading];

		if (FD_ISSET(fd, &readFDs) && [_delegate respondsToSelector:
		    @selector(objectIsReadyForReading:)])
			[_delegate objectIsReadyForReading: objects[i]];

		objc_autoreleasePoolPop(pool);
	}

	objects = [_writeObjects objects];
	count = [_writeObjects count];

	for (i = 0; i < count; i++) {


		void *pool = objc_autoreleasePoolPush();
		int fd = [objects[i] fileDescriptorForWriting];

		if (FD_ISSET(fd, &writeFDs) && [_delegate respondsToSelector:
		    @selector(objectIsReadyForWriting:)])
			[_delegate objectIsReadyForWriting: objects[i]];

		objc_autoreleasePoolPop(pool);
	}
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

	objc_setForwardHandler((IMP)&of_forward, (IMP)&of_forward_stret);
#endif

#ifdef HAVE_OBJC_ENUMERATIONMUTATION
	objc_setEnumerationMutationHandler(enumerationMutationHandler);
#endif

	of_hash_seed = 0;
	while (of_hash_seed == 0) {
#if defined(HAVE_ARC4RANDOM)
		of_hash_seed = arc4random();
#elif defined(HAVE_RANDOM)
		struct timeval t;
		gettimeofday(&t, NULL);
		srandom((unsigned)(t.tv_sec ^ t.tv_usec));
		of_hash_seed = (uint32_t)((random() << 16) |
		    (random() & 0xFFFF));
#else
		struct timeval t;
		gettimeofday(&t, NULL);
		srand((unsigned)(t.tv_sec ^ t.tv_usec));
		of_hash_seed = (uint32_t)((rand() << 16) | (rand() & 0xFFFF));
#endif
	}
}

+ (void)unload
{
}

+ (void)initialize

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"



@class OFString;

#ifndef _WIN32
typedef void* of_plugin_handle_t;
#else
# include <windows.h>
typedef HMODULE of_plugin_handle_t;
#endif

OF_ASSUME_NONNULL_BEGIN

/*!
 * @class OFPlugin OFPlugin.h ObjFW/OFPlugin.h
 *
 * @brief Provides a system for loading plugins at runtime.
 */
@interface OFPlugin: OFObject

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

		     length: (size_t)length
{
#ifndef _WIN32
	if (_writePipe[1] == -1 || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_writePipe[1], buffer, length) != (ssize_t)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#else
	DWORD ret;

	if (length > UINT32_MAX)
		@throw [OFOutOfRangeException exception];

	if (_writePipe[1] == NULL || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

	if (!WriteFile(_writePipe[1], buffer, (DWORD)length, &ret, NULL) ||
	    ret != (DWORD)length) {
		int errNo = 0;

		if (GetLastError() == ERROR_BROKEN_PIPE)
			errNo = EPIPE;

		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length

#ifndef _WIN32
	if (_readPipe[0] != -1)
		close(_readPipe[0]);
	if (_writePipe[1] != -1)
		close(_writePipe[1]);

	if (_pid != -1) {
		kill(_pid, SIGTERM);
		waitpid(_pid, &_status, WNOHANG);
	}

	_pid = -1;
	_readPipe[0] = -1;
	_writePipe[1] = -1;
#else

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *