ObjFW  Check-in [81970b1dab]

Overview
Comment:Add of_dl{open,sym,close}

It only makes sense to export the lowlevel variants as well.

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SHA3-256: 81970b1dab629ba079d439ebb036614956342266e5183febfe046e0ec5787905
User & Date: js on 2016-07-10 22:40:36
Other Links: manifest | tags
Context
2016-07-11
19:04
Windows improvements for of_dl{open,sym,close} check-in: c91508ddfb user: js tags: trunk
2016-07-10
22:40
Add of_dl{open,sym,close} check-in: 81970b1dab user: js tags: trunk
16:23
runtime/exception.m: abort() -> OBJC_ERROR() check-in: 85a52c4717 user: js tags: trunk
Changes

Modified src/OFPlugin.h from [1957f73e8b] to [31020e84b4].

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 * @brief Loads a plugin from a file.
 *
 * @param path Path to the plugin file. The suffix is appended automatically.
 * @return The loaded plugin
 */
+ (OF_KINDOF(OFPlugin*))pluginFromFile: (OFString*)path;
@end











OF_ASSUME_NONNULL_END








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 * @brief Loads a plugin from a file.
 *
 * @param path Path to the plugin file. The suffix is appended automatically.
 * @return The loaded plugin
 */
+ (OF_KINDOF(OFPlugin*))pluginFromFile: (OFString*)path;
@end

#ifdef __cplusplus
extern "C" {
#endif
extern of_plugin_handle_t of_dlopen(OFString *path, int flags);
extern void* of_dlsym(of_plugin_handle_t handle, const char *symbol);
extern void of_dlclose(of_plugin_handle_t handle);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

Modified src/OFPlugin.m from [7e1181f07e] to [565f8364c6].

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#import "OFPlugin.h"
#import "OFString.h"
#import "OFSystemInfo.h"

#import "OFInitializationFailedException.h"






#ifdef OF_WINDOWS













# define dlsym(handle, symbol) GetProcAddress(handle, symbol)









# define dlclose(handle) FreeLibrary(handle)
#endif

typedef OFPlugin* (*init_plugin_t)(void);

@implementation OFPlugin
+ (id)pluginFromFile: (OFString*)path
{
	void *pool = objc_autoreleasePoolPush();
	of_plugin_handle_t handle;
	init_plugin_t initPlugin;
	OFPlugin *plugin;

	path = [path stringByAppendingString: @PLUGIN_SUFFIX];

#ifndef OF_WINDOWS
	if ((handle = dlopen([path cStringWithEncoding:
	    [OFSystemInfo native8BitEncoding]], RTLD_LAZY)) == NULL)
#else
	if ((handle = LoadLibraryW([path UTF16String])) == NULL)
#endif
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];

	objc_autoreleasePoolPop(pool);

	initPlugin = (init_plugin_t)(uintptr_t)dlsym(handle, "init_plugin");
	if (initPlugin == (init_plugin_t)0 || (plugin = initPlugin()) == nil) {
		dlclose(handle);
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
	}

	plugin->_handle = handle;
	return plugin;
}







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#import "OFPlugin.h"
#import "OFString.h"
#import "OFSystemInfo.h"

#import "OFInitializationFailedException.h"

typedef OFPlugin* (*init_plugin_t)(void);

of_plugin_handle_t
of_dlopen(OFString *path, int flags)
{
#ifndef OF_WINDOWS
	return dlopen([path cStringWithEncoding:
	    [OFSystemInfo native8BitEncoding]], flags);
#else
	return LoadLibraryW([path UTF16String]);
#endif
}

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

void
of_dlclose(of_plugin_handle_t handle)
{
#ifndef OF_WINDOWS
	dlclose(handle);
#else
	FreeLibrary(handle);
#endif
}


@implementation OFPlugin
+ (id)pluginFromFile: (OFString*)path
{
	void *pool = objc_autoreleasePoolPush();
	of_plugin_handle_t handle;
	init_plugin_t initPlugin;
	OFPlugin *plugin;

	path = [path stringByAppendingString: @PLUGIN_SUFFIX];



	if ((handle = of_dlopen(path, RTLD_LAZY)) == NULL)



		@throw [OFInitializationFailedException
		    exceptionWithClass: self];

	objc_autoreleasePoolPop(pool);

	initPlugin = (init_plugin_t)(uintptr_t)of_dlsym(handle, "init_plugin");
	if (initPlugin == (init_plugin_t)0 || (plugin = initPlugin()) == nil) {
		of_dlclose(handle);
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
	}

	plugin->_handle = handle;
	return plugin;
}
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- (void)dealloc
{
	of_plugin_handle_t h = _handle;

	[super dealloc];

	dlclose(h);
}
@end







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- (void)dealloc
{
	of_plugin_handle_t h = _handle;

	[super dealloc];

	of_dlclose(h);
}
@end