235 lines
5.0 KiB
C
235 lines
5.0 KiB
C
/*
|
|
* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#ifdef HAVE_DLFCN_H
|
|
# include <dlfcn.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_EVIL_H
|
|
# include <evil.h>
|
|
#endif
|
|
|
|
#include "Ecore_Data.h"
|
|
#include "ecore_private.h"
|
|
|
|
|
|
static Ecore_List *loaded_plugins = NULL;
|
|
|
|
/**
|
|
* @defgroup Ecore_Plugin Plugin Functions
|
|
*
|
|
* Functions that load modules of compiled code into memory.
|
|
*/
|
|
|
|
/**
|
|
* Loads the specified plugin from the specified path group.
|
|
* @param group The path group to search for the plugin to load
|
|
* @param plugin_name The name of the plugin to load.
|
|
* @param version The interface version of the plugin. With version
|
|
* equal to NULL the default will be loaded.
|
|
* @return A pointer to the newly loaded plugin on success, @c NULL on
|
|
* failure.
|
|
* @ingroup Ecore_Plugin
|
|
*/
|
|
EAPI Ecore_Plugin *
|
|
ecore_plugin_load(Ecore_Path_Group *group, const char *plugin_name, const char *version)
|
|
{
|
|
char *path;
|
|
char temp[PATH_MAX];
|
|
|
|
Ecore_Plugin *plugin;
|
|
void *handle = NULL;
|
|
|
|
CHECK_PARAM_POINTER_RETURN("plugin_name", plugin_name, NULL);
|
|
|
|
if (!version || *version == '\0')
|
|
snprintf(temp, sizeof(temp), "%s" SHARED_LIB_SUFFIX, plugin_name);
|
|
else
|
|
snprintf(temp, sizeof(temp), "%s" SHARED_LIB_SUFFIX ".%s", plugin_name, version);
|
|
|
|
path = ecore_path_group_find(group, temp);
|
|
|
|
if (!path && version)
|
|
{
|
|
/* if this file doesn't exist try a different order */
|
|
snprintf(temp, sizeof(temp), "%s.%s" SHARED_LIB_SUFFIX, plugin_name, version);
|
|
path = ecore_path_group_find(group, temp);
|
|
}
|
|
|
|
if (!path)
|
|
return NULL;
|
|
|
|
handle = dlopen(path, RTLD_LAZY);
|
|
if (!handle)
|
|
{
|
|
FREE(path);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Allocate the new plugin and initialize it's fields
|
|
*/
|
|
plugin = malloc(sizeof(Ecore_Plugin));
|
|
if (!plugin)
|
|
{
|
|
dlclose(handle);
|
|
FREE(path);
|
|
return NULL;
|
|
}
|
|
memset(plugin, 0, sizeof(Ecore_Plugin));
|
|
|
|
plugin->handle = handle;
|
|
|
|
/*
|
|
* Now add it to the list of the groups loaded plugins
|
|
*/
|
|
if (!loaded_plugins)
|
|
loaded_plugins = ecore_list_new();
|
|
|
|
ecore_list_append(loaded_plugins, plugin);
|
|
|
|
FREE(path);
|
|
|
|
return plugin;
|
|
}
|
|
|
|
/**
|
|
* Unloads the given plugin from memory.
|
|
* @param plugin The given plugin.
|
|
* @ingroup Ecore_Plugin
|
|
*/
|
|
EAPI void
|
|
ecore_plugin_unload(Ecore_Plugin *plugin)
|
|
{
|
|
CHECK_PARAM_POINTER("plugin", plugin);
|
|
|
|
if (!plugin->handle)
|
|
return;
|
|
|
|
if (ecore_list_goto(loaded_plugins, plugin))
|
|
ecore_list_remove(loaded_plugins);
|
|
|
|
if (ecore_list_empty_is(loaded_plugins))
|
|
{
|
|
ecore_list_destroy(loaded_plugins);
|
|
loaded_plugins = NULL;
|
|
}
|
|
|
|
dlclose(plugin->handle);
|
|
|
|
FREE(plugin);
|
|
}
|
|
|
|
/*
|
|
* Searches for the specified symbol in the given plugin.
|
|
* @param plugin The given plugin.
|
|
* @param symbol_name The symbol to search for.
|
|
* @return Address of the given symbol if successful. Otherwise, @c NULL.
|
|
* @ingroup Ecore_Plugin
|
|
*/
|
|
EAPI void *
|
|
ecore_plugin_symbol_get(Ecore_Plugin *plugin, const char *symbol_name)
|
|
{
|
|
void *ret;
|
|
|
|
CHECK_PARAM_POINTER_RETURN("plugin", plugin, NULL);
|
|
CHECK_PARAM_POINTER_RETURN("symbol_name", symbol_name, NULL);
|
|
|
|
if (!plugin->handle)
|
|
return NULL;
|
|
|
|
ret = dlsym(plugin->handle, symbol_name);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Retrieves a list of all available plugins in the given path.
|
|
* @param group_id The identifier for the given path.
|
|
* @return A pointer to a newly allocated list of all plugins found in the
|
|
* paths identified by @p group_id. @c NULL otherwise.
|
|
* @ingroup Ecore_Plugin
|
|
*/
|
|
EAPI Ecore_List *
|
|
ecore_plugin_available_get(Ecore_Path_Group *group)
|
|
{
|
|
Ecore_List *avail = NULL;
|
|
Ecore_Hash *plugins = NULL;
|
|
char *path;
|
|
|
|
CHECK_PARAM_POINTER_RETURN("group", group, NULL);
|
|
|
|
if (!group->paths || ecore_list_empty_is(group->paths))
|
|
return NULL;
|
|
|
|
ecore_list_first_goto(group->paths);
|
|
plugins = ecore_hash_new(ecore_str_hash, ecore_str_compare);
|
|
ecore_hash_free_key_cb_set(plugins, free);
|
|
|
|
while ((path = ecore_list_next(group->paths)) != NULL)
|
|
{
|
|
DIR *dir;
|
|
struct stat st;
|
|
struct dirent *d;
|
|
|
|
if (stat(path, &st) < 0)
|
|
continue;
|
|
|
|
if (!S_ISDIR(st.st_mode))
|
|
continue;
|
|
|
|
dir = opendir(path);
|
|
|
|
if (!dir)
|
|
continue;
|
|
|
|
while ((d = readdir(dir)) != NULL)
|
|
{
|
|
char ppath[PATH_MAX];
|
|
char *ext;
|
|
|
|
if (*d->d_name == '.')
|
|
continue;
|
|
|
|
if (!ecore_str_has_suffix(d->d_name, SHARED_LIB_SUFFIX))
|
|
continue;
|
|
|
|
snprintf(ppath, PATH_MAX, "%s/%s", path, d->d_name);
|
|
|
|
stat(ppath, &st);
|
|
|
|
if (!S_ISREG(st.st_mode))
|
|
continue;
|
|
|
|
ecore_strlcpy(ppath, d->d_name, sizeof(ppath));
|
|
ext = strrchr(ppath, '.');
|
|
*ext = '\0';
|
|
|
|
if (!ecore_hash_get(plugins, ppath))
|
|
{
|
|
char *key;
|
|
|
|
key = strdup(ppath);
|
|
ecore_hash_set(plugins, key, key);
|
|
}
|
|
}
|
|
closedir(dir);
|
|
}
|
|
|
|
ecore_hash_free_key_cb_set(plugins, NULL);
|
|
avail = ecore_hash_keys(plugins);
|
|
ecore_list_free_cb_set(avail, free);
|
|
ecore_hash_destroy(plugins);
|
|
|
|
return avail;
|
|
}
|
|
|