/*
* Copyright (c) 2008 - 2009
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of libobjfw. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE included in
* the packaging of this file.
*/
#import "config.h"
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#import "OFPlugin.h"
#import "OFExceptions.h"
@implementation OFPlugin
+ pluginFromFile: (const char*)path
{
char *file;
size_t pathlen, suffixlen;
void *handle;
OFPlugin *(*init_plugin)();
OFPlugin *plugin;
if ((self = [super init])) {
pathlen = strlen(path);
suffixlen = strlen(PLUGIN_SUFFIX);
if ((file = malloc(pathlen + suffixlen + 1)) == NULL) {
@throw [OFNoMemException newWithClass: self
andSize: pathlen +
suffixlen + 1];
}
memcpy(file, path, pathlen);
memcpy(file + pathlen, PLUGIN_SUFFIX, suffixlen);
file[pathlen + suffixlen] = 0;
if ((handle = dlopen(file, RTLD_NOW)) == NULL) {
free(file);
@throw [OFInitializationFailedException
newWithClass: self];
}
free(file);
if ((init_plugin = dlsym(handle, "init_plugin")) == NULL ||
(plugin = init_plugin()) == nil) {
dlclose(handle);
@throw [OFInitializationFailedException
newWithClass: self];
}
plugin->handle = handle;
return plugin;
}
return self;
}
- free
{
dlclose(handle);
return [super free];
}
@end