ObjFW  Artifact [8777ac3750]

Artifact 8777ac3750d25bd8d637552ad8da07c17d731c2855b1b081d13f1f687c67b385:

• File src/OFApplication.m — part of check-in [fe2cbe0021] at 2018-04-22 16:13:04 on branch trunk — runtime: Define BOOL to be the same as bool

  As we define the ABI, we can just replace BOOL with bool everywhere,
  including in ObjFW itself. For the Apple platforms where BOOL and bool
  are different, this is not a problem as BOOL and bool are passed and
  returned the same way in the ABI.

  This still defines BOOL to bool for compatibility, except on AmigaOS and
  Wii, which both have its own BOOL type. (user: js, size: 12652) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   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"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <errno.h>
#include <signal.h>

#include "unistd_wrapper.h"

#import "OFApplication.h"
#import "OFString.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFLocalization.h"
#import "OFRunLoop.h"
#import "OFRunLoop+Private.h"
#import "OFThread.h"
#import "OFThread+Private.h"
#import "OFSandbox.h"
#ifdef OF_MORPHOS
# import "OFFile.h"
# import "OFFileManager.h"
#endif

#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"
#import "OFSandboxActivationFailedException.h"

#if defined(OF_MACOS)
# include <crt_externs.h>
#elif defined(OF_WINDOWS)
# include <windows.h>

extern int _CRT_glob;
extern void __wgetmainargs(int *, wchar_t ***, wchar_t ***, int, int *);
#elif defined(OF_MORPHOS)
# include <proto/exec.h>
# include <proto/dos.h>
#elif !defined(OF_IOS)
extern char **environ;
#endif

#ifdef OF_PSP
# include <pspkerneltypes.h>
# include <psploadexec.h>
#endif

#ifdef OF_NINTENDO_DS
# define asm __asm__
# include <nds.h>
# undef asm
#endif

@interface OFApplication ()
- (instancetype)of_init OF_METHOD_FAMILY(init);
- (void)of_setArgumentCount: (int *)argc
	  andArgumentValues: (char **[])argv;
#ifdef OF_WINDOWS
- (void)of_setArgumentCount: (int)argc
      andWideArgumentValues: (wchar_t *[])argv;
#endif
- (void)of_run;
@end

static OFApplication *app = nil;

static void
atexitHandler(void)
{
	id <OFApplicationDelegate> delegate = [app delegate];

	if ([delegate respondsToSelector: @selector(applicationWillTerminate)])
		[delegate applicationWillTerminate];

	[delegate release];
}

#define SIGNAL_HANDLER(signal)					\
	static void						\
	handle##signal(int sig)					\
	{							\
		app->_##signal##Handler(app->_delegate,		\
		    @selector(applicationDidReceive##signal));	\
	}
SIGNAL_HANDLER(SIGINT)
#ifdef SIGHUP
SIGNAL_HANDLER(SIGHUP)
#endif
#ifdef SIGUSR1
SIGNAL_HANDLER(SIGUSR1)
#endif
#ifdef SIGUSR2
SIGNAL_HANDLER(SIGUSR2)
#endif
#undef SIGNAL_HANDLER

int
of_application_main(int *argc, char **argv[],
    id <OFApplicationDelegate> delegate)
{
#ifdef OF_WINDOWS
	wchar_t **wargv, **wenvp;
	int wargc, si = 0;
#endif

	[[OFLocalization alloc] init];

	app = [[OFApplication alloc] of_init];

	[app of_setArgumentCount: argc
	       andArgumentValues: argv];

#ifdef OF_WINDOWS
	__wgetmainargs(&wargc, &wargv, &wenvp, _CRT_glob, &si);
	[app of_setArgumentCount: wargc
	   andWideArgumentValues: wargv];
#endif

	[app setDelegate: delegate];

	[app of_run];

	[delegate release];

	return 0;
}

@implementation OFApplication
@synthesize programName = _programName, arguments = _arguments;
@synthesize environment = _environment;

+ (OFApplication *)sharedApplication
{
	return app;
}

+ (OFString *)programName
{
	return [app programName];
}

+ (OFArray *)arguments
{
	return [app arguments];
}

+ (OFDictionary *)environment
{
	return [app environment];
}

+ (void)terminate
{
	[self terminateWithStatus: EXIT_SUCCESS];

	OF_UNREACHABLE
}

+ (void)terminateWithStatus: (int)status
{
#ifndef OF_PSP
	exit(status);
#else
	sceKernelExitGame();

	OF_UNREACHABLE
#endif
}

#ifdef OF_HAVE_SANDBOX
+ (void)activateSandbox: (OFSandbox *)sandbox
{
	[app activateSandbox: sandbox];
}
#endif

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)of_init
{
	self = [super init];

	@try {
		_environment = [[OFMutableDictionary alloc] init];

		atexit(atexitHandler);

#if defined(OF_WINDOWS)
		of_char16_t *env, *env0;
		env = env0 = GetEnvironmentStringsW();

		while (*env != 0) {
			void *pool = objc_autoreleasePoolPush();
			OFString *tmp, *key, *value;
			size_t length, pos;

			length = of_string_utf16_length(env);
			tmp = [OFString stringWithUTF16String: env
						       length: length];
			env += length + 1;

			/*
			 * cmd.exe seems to add some special variables which
			 * start with a "=", even though variable names are not
			 * allowed to contain a "=".
			 */
			if ([tmp hasPrefix: @"="]) {
				objc_autoreleasePoolPop(pool);
				continue;
			}

			pos = [tmp rangeOfString: @"="].location;
			if (pos == OF_NOT_FOUND) {
				fprintf(stderr, "Warning: Invalid environment "
				    "variable: %s\n", [tmp UTF8String]);
				continue;
			}

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

			[_environment setObject: value
					 forKey: key];

			objc_autoreleasePoolPop(pool);
		}

		FreeEnvironmentStringsW(env0);
#elif defined(OF_MORPHOS)
		void *pool = objc_autoreleasePoolPush();
		OFFileManager *fileManager = [OFFileManager defaultManager];
		OFArray *envContents =
		    [fileManager contentsOfDirectoryAtPath: @"ENV:"];
		const of_string_encoding_t encoding = [OFLocalization encoding];
		struct Process *proc;
		struct LocalVar *firstLocalVar;

		for (OFString *name in envContents) {
			void *pool2 = objc_autoreleasePoolPush();
			OFString *path, *value;
			OFFile *file;

			if ([name containsString: @"."])
				continue;

			path = [@"ENV:" stringByAppendingString: name];

			if ([fileManager directoryExistsAtPath: path])
				continue;

			file = [OFFile fileWithPath: path
					       mode: @"r"];

			value = [file readLineWithEncoding: encoding];
			if (value != nil)
				[_environment setObject: value
						 forKey: name];

			objc_autoreleasePoolPop(pool2);
		}

		/* Local variables override global variables */
		proc = (struct Process *)FindTask(NULL);
		firstLocalVar = (struct LocalVar *)proc->pr_LocalVars.mlh_Head;

		for (struct LocalVar *iter = firstLocalVar;
		    iter->lv_Node.ln_Succ != NULL;
		    iter = (struct LocalVar *)iter->lv_Node.ln_Succ) {
			size_t length;
			OFString *key, *value;

			if (iter->lv_Node.ln_Type != LV_VAR ||
			    iter->lv_Flags & GVF_BINARY_VAR)
				continue;

			for (length = 0; length < iter->lv_Len; length++)
				if (iter->lv_Value[length] == 0)
					break;

			key = [OFString stringWithCString: iter->lv_Node.ln_Name
						 encoding: encoding];
			value = [OFString
			    stringWithCString: (const char *)iter->lv_Value
				     encoding: encoding
				       length: length];

			[_environment setObject: value
					 forKey: key];
		}

		objc_autoreleasePoolPop(pool);
#elif !defined(OF_IOS)
# ifndef OF_MACOS
		char **env = environ;
# else
		char **env = *_NSGetEnviron();
# endif

		if (env != NULL) {
			const of_string_encoding_t encoding =
			    [OFLocalization encoding];

			for (; *env != NULL; env++) {
				void *pool = objc_autoreleasePoolPush();
				OFString *key, *value;
				char *sep;

				if ((sep = strchr(*env, '=')) == NULL) {
					fprintf(stderr, "Warning: Invalid "
					    "environment variable: %s\n", *env);
					continue;
				}

				key = [OFString
				    stringWithCString: *env
					     encoding: encoding
					       length: sep - *env];
				value = [OFString
				    stringWithCString: sep + 1
					     encoding: encoding];

				[_environment setObject: value
						 forKey: key];

				objc_autoreleasePoolPop(pool);
			}
		}
#else
		/*
		 * iOS does not provide environ and Apple does not allow using
		 * _NSGetEnviron on iOS. Therefore, we just get a few common
		 * variables from the environment which applications might
		 * expect.
		 */

		void *pool = objc_autoreleasePoolPush();
		char *env;

		if ((env = getenv("HOME")) != NULL) {
			OFString *home = [[[OFString alloc]
			    initWithUTF8StringNoCopy: env
					freeWhenDone: false] autorelease];
			[_environment setObject: home
					 forKey: @"HOME"];
		}
		if ((env = getenv("PATH")) != NULL) {
			OFString *path = [[[OFString alloc]
			    initWithUTF8StringNoCopy: env
					freeWhenDone: false] autorelease];
			[_environment setObject: path
					 forKey: @"PATH"];
		}
		if ((env = getenv("SHELL")) != NULL) {
			OFString *shell = [[[OFString alloc]
			    initWithUTF8StringNoCopy: env
					freeWhenDone: false] autorelease];
			[_environment setObject: shell
					 forKey: @"SHELL"];
		}
		if ((env = getenv("TMPDIR")) != NULL) {
			OFString *tmpdir = [[[OFString alloc]
			    initWithUTF8StringNoCopy: env
					freeWhenDone: false] autorelease];
			[_environment setObject: tmpdir
					 forKey: @"TMPDIR"];
		}
		if ((env = getenv("USER")) != NULL) {
			OFString *user = [[[OFString alloc]
			    initWithUTF8StringNoCopy: env
					freeWhenDone: false] autorelease];
			[_environment setObject: user
					 forKey: @"USER"];
		}

		objc_autoreleasePoolPop(pool);
#endif

		[_environment makeImmutable];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_arguments release];
	[_environment release];

	[super dealloc];
}

- (void)of_setArgumentCount: (int *)argc
	  andArgumentValues: (char ***)argv
{
#ifndef OF_WINDOWS
	void *pool = objc_autoreleasePoolPush();
	OFMutableArray *arguments;
	of_string_encoding_t encoding;

	_argc = argc;
	_argv = argv;

	encoding = [OFLocalization encoding];

# ifndef OF_NINTENDO_DS
	if (*argc > 0) {
# else
	if (__system_argv->argvMagic == ARGV_MAGIC &&
	    __system_argv->argc > 0) {
# endif
		_programName = [[OFString alloc] initWithCString: (*argv)[0]
							encoding: encoding];
		arguments = [[OFMutableArray alloc] init];
		_arguments = arguments;

		for (int i = 1; i < *argc; i++)
			[arguments addObject:
			    [OFString stringWithCString: (*argv)[i]
					       encoding: encoding]];

		[arguments makeImmutable];
	}

	objc_autoreleasePoolPop(pool);
#else
	_argc = argc;
	_argv = argv;
#endif
}

#ifdef OF_WINDOWS
- (void)of_setArgumentCount: (int)argc
      andWideArgumentValues: (wchar_t **)argv
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableArray *arguments;

	if (argc > 0) {
		_programName = [[OFString alloc] initWithUTF16String: argv[0]];
		arguments = [[OFMutableArray alloc] init];

		for (int i = 1; i < argc; i++)
			[arguments addObject:
			    [OFString stringWithUTF16String: argv[i]]];

		[arguments makeImmutable];
		_arguments = arguments;
	}

	objc_autoreleasePoolPop(pool);
}
#endif

- (void)getArgumentCount: (int **)argc
       andArgumentValues: (char ****)argv
{
	*argc = _argc;
	*argv = _argv;
}

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

- (void)setDelegate: (id <OFApplicationDelegate>)delegate
{
#define REGISTER_SIGNAL(sig)						\
	if ([delegate respondsToSelector:				\
	    @selector(applicationDidReceive##sig)]) {			\
		_##sig##Handler = (void (*)(id, SEL))[(id)delegate	\
		    methodForSelector:					\
		    @selector(applicationDidReceive##sig)];		\
		signal(sig, handle##sig);				\
	} else {							\
		_##sig##Handler = NULL;					\
		signal(sig, (void (*)(int))SIG_DFL);			\
	}

	_delegate = delegate;

	REGISTER_SIGNAL(SIGINT)
#ifdef SIGHUP
	REGISTER_SIGNAL(SIGHUP)
#endif
#ifdef SIGUSR1
	REGISTER_SIGNAL(SIGUSR1)
#endif
#ifdef SIGUSR2
	REGISTER_SIGNAL(SIGUSR2)
#endif

#undef REGISTER_SIGNAL
}

- (void)of_run
{
	void *pool = objc_autoreleasePoolPush();
	OFRunLoop *runLoop;

#ifdef OF_HAVE_THREADS
	[OFThread of_createMainThread];
	runLoop = [OFRunLoop currentRunLoop];
#else
	runLoop = [[[OFRunLoop alloc] init] autorelease];
#endif

	[OFRunLoop of_setMainRunLoop: runLoop];

	objc_autoreleasePoolPop(pool);

	/*
	 * Note: runLoop is still valid after the release of the pool, as
	 * of_setMainRunLoop: retained it. However, we only have a weak
	 * reference to it now, whereas we had a strong reference before.
	 */

	pool = objc_autoreleasePoolPush();
	[_delegate applicationDidFinishLaunching];
	objc_autoreleasePoolPop(pool);

	[runLoop run];
}

- (void)terminate
{
	[[self class] terminate];

	OF_UNREACHABLE
}

- (void)terminateWithStatus: (int)status
{
	[[self class] terminateWithStatus: status];

	OF_UNREACHABLE
}

#ifdef OF_HAVE_SANDBOX
- (void)activateSandbox: (OFSandbox *)sandbox
{
# ifdef OF_HAVE_PLEDGE
	void *pool = objc_autoreleasePoolPush();
	const char *promises = [[sandbox pledgeString]
	    cStringWithEncoding: [OFLocalization encoding]];

	if (pledge(promises, NULL) != 0)
		@throw [OFSandboxActivationFailedException
		    exceptionWithSandbox: sandbox
				   errNo: errno];

	objc_autoreleasePoolPop(pool);
# endif
}
#endif
@end