ObjFW  Diff

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/*
 * Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
 *
 * 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.
 *

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/*
 * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
 *
 * 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.
 *
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#import "OFLocale.h"
#import "OFString.h"
#import "OFSystemInfo.h"

#import "OFInitializationFailedException.h"
#import "OFLoadPluginFailedException.h"

typedef OFPlugin *(*PluginInit)(void);



OFPluginHandle
OFDLOpen(OFString *path, OFDLOpenFlags flags)
{
#ifndef OF_WINDOWS
	return dlopen([path cStringWithEncoding: [OFLocale encoding]], flags);

#else
	if (path == nil)
		return GetModuleHandle(NULL);

	if ([OFSystemInfo isWindowsNT])



		return LoadLibraryW(path.UTF16String);

	else
		return LoadLibraryA(
		    [path cStringWithEncoding: [OFLocale encoding]]);
#endif
}






void *
OFDLSym(OFPluginHandle handle, const char *symbol)
{
#ifndef OF_WINDOWS
	return dlsym(handle, symbol);
#else
	return (void *)(uintptr_t)GetProcAddress(handle, symbol);
#endif
}

void
OFDLClose(OFPluginHandle handle)
{
#ifndef OF_WINDOWS
	dlclose(handle);
#else
	FreeLibrary(handle);
#endif
}

OFString *
OFDLError(void)
{
#ifndef OF_WINDOWS
	return [OFString stringWithCString: dlerror()
				  encoding: [OFLocale encoding]];
#else


	return nil;


#endif
}

@implementation OFPlugin
+ (id)pluginWithPath: (OFString *)path
{
	void *pool = objc_autoreleasePoolPush();
	OFPluginHandle handle;
	PluginInit initPlugin;
	OFPlugin *plugin;

#if defined(OF_MACOS)
	path = [path stringByAppendingFormat: @".bundle/Contents/MacOS/%@",
					      path.lastPathComponent];
#elif defined(OF_IOS)
	path = [path stringByAppendingFormat: @".bundle/%@",
					      path.lastPathComponent];
#else
	path = [path stringByAppendingString: @PLUGIN_SUFFIX];
#endif

	if ((handle = OFDLOpen(path, OFDLOpenFlagLazy)) == NULL)
		@throw [OFLoadPluginFailedException
		    exceptionWithPath: path
				error: OFDLError()];

	objc_autoreleasePoolPop(pool);

	initPlugin = (PluginInit)(uintptr_t)OFDLSym(handle, "OFPluginInit");
	if (initPlugin == (PluginInit)0 || (plugin = initPlugin()) == nil) {
		OFDLClose(handle);
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
	}

	plugin->_pluginHandle = handle;
	return plugin;
}

- (instancetype)init
{
	if ([self isMemberOfClass: [OFPlugin class]]) {
		@try {
			[self doesNotRecognizeSelector: _cmd];
		} @catch (id e) {
			[self release];
			@throw e;
		}

		abort();
	}




	return [super init];





}

- (void)dealloc
{

	OFPluginHandle h = _pluginHandle;




	[super dealloc];

	OFDLClose(h);
}
@end







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#import "OFLocale.h"
#import "OFString.h"
#import "OFSystemInfo.h"

#import "OFInitializationFailedException.h"
#import "OFLoadPluginFailedException.h"

#ifndef RTLD_LAZY
# define RTLD_LAZY 0
#endif

@implementation OFPlugin
+ (instancetype)pluginWithPath: (OFString *)path
{

	return [[[self alloc] initWithPath: path] autorelease];
}

+ (OFString *)pathForName: (OFString *)name

{
#if defined(OF_MACOS)
	return [name stringByAppendingFormat: @".bundle/Contents/MacOS/%@",
					      name.lastPathComponent];
#elif defined(OF_IOS)
	return [name stringByAppendingFormat: @".bundle/%@",
					      name.lastPathComponent];
#else
	return [name stringByAppendingString: @PLUGIN_SUFFIX];

#endif
}

- (instancetype)initWithPath: (OFString *)path
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();


#ifndef OF_WINDOWS










		_handle = dlopen(










		    [path cStringWithEncoding: [OFLocale encoding]], RTLD_LAZY);
#else
		if ([OFSystemInfo isWindowsNT])
			_handle = LoadLibraryW(path.UTF16String);
		else
			_handle = LoadLibraryA(
			    [path cStringWithEncoding: [OFLocale encoding]]);
#endif

		if (_handle == NULL) {
#ifndef OF_WINDOWS
			OFString *error = [OFString


			    stringWithCString: dlerror()


				     encoding: [OFLocale encoding]];






#else
			OFString *error = nil;
#endif


			@throw [OFLoadPluginFailedException
			    exceptionWithPath: path
					error: error];
		}








		objc_autoreleasePoolPop(pool);









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

	return self;
}

- (void *)addressForSymbol: (OFString *)symbol
{
#ifndef OF_WINDOWS
	return dlsym(_handle,
	    [symbol cStringWithEncoding: [OFLocale encoding]]);
#else
	return (void *)(uintptr_t)GetProcAddress(_handle,
	    [symbol cStringWithEncoding: [OFLocale encoding]]);
#endif
}

- (void)dealloc
{
#ifndef OF_WINDOWS
	dlclose(_handle);
#else
	FreeLibrary(_handle);
#endif

	[super dealloc];
}


@end