121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
#ifndef WIN32
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# include <dlfcn.h>
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# include "ecore_private.h"
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# include "Ecore_Data.h"
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static Ecore_List *loaded_plugins = NULL;
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/**
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* @defgroup Ecore_Plugin Plugin Functions
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*
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* Functions that load modules of compiled code into memory.
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*/
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/**
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* Loads the specified plugin from the specified path group.
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* @param group_id The path group to search for the plugin to load
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* @param plugin_name The name of the plugin to load.
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* @return A pointer to the newly loaded plugin on success, @c NULL on
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* failure.
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* @ingroup Ecore_Plugin
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*/
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EAPI Ecore_Plugin *
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ecore_plugin_load(int group_id, const char *plugin_name)
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{
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char *path;
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char temp[PATH_MAX];
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Ecore_Plugin *plugin;
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void *handle = NULL;
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CHECK_PARAM_POINTER_RETURN("plugin_name", plugin_name, NULL);
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snprintf(temp, PATH_MAX, "%s.so", plugin_name);
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path = ecore_path_group_find(group_id, temp);
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if (!path)
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return NULL;
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handle = dlopen(path, RTLD_LAZY);
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if (!handle)
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return NULL;
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/*
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* Allocate the new plugin and initialize it's fields
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*/
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plugin = malloc(sizeof(Ecore_Plugin));
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if (!plugin)
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{
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dlclose(handle);
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return NULL;
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}
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memset(plugin, 0, sizeof(Ecore_Plugin));
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plugin->group = group_id;
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plugin->name = strdup(plugin_name);
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plugin->handle = handle;
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/*
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* Now add it to the list of the groups loaded plugins
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*/
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if (!loaded_plugins)
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loaded_plugins = ecore_list_new();
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ecore_list_append(loaded_plugins, plugin);
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FREE(path);
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return plugin;
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}
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/**
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* Unloads the given plugin from memory.
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* @param plugin The given plugin.
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* @ingroup Ecore_Plugin
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*/
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EAPI void
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ecore_plugin_unload(Ecore_Plugin *plugin)
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{
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CHECK_PARAM_POINTER("plugin", plugin);
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if (!plugin->handle)
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return;
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if (ecore_list_goto(loaded_plugins, plugin))
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ecore_list_remove(loaded_plugins);
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if (ecore_list_empty_is(loaded_plugins))
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{
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ecore_list_destroy(loaded_plugins);
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loaded_plugins = NULL;
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}
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dlclose(plugin->handle);
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FREE(plugin->name);
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FREE(plugin);
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}
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/*
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* Searches for the specified symbol in the given plugin.
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* @param plugin The given plugin.
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* @param symbol_name The symbol to search for.
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* @return Address of the given symbol if successful. Otherwise, @c NULL.
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* @ingroup Ecore_Plugin
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*/
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EAPI void *
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ecore_plugin_call(Ecore_Plugin *plugin, const char *symbol_name)
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{
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void *ret;
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CHECK_PARAM_POINTER_RETURN("plugin", plugin, NULL);
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CHECK_PARAM_POINTER_RETURN("symbol_name", symbol_name, NULL);
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if (!plugin->handle)
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return NULL;
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ret = dlsym(plugin->handle, symbol_name);
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return ret;
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}
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#endif
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