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/*
* (c) Copyright 2016 Olliver Schinagl
* Author: Olliver Schinagl <oliver@schinagl.nl>
*
* SPDX-License-Identifier: AGPL-3.0+
*/
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <dlfcn.h>
#include <engagement/plugin.h>
struct plugin *plugin_load(const char *path)
{
struct plugin *plugin;
void *handle;
handle = dlopen(path, RTLD_LAZY); /* TODO check if RTLD_LAZY is what we want */
if (!handle) {
// TODO EINA_LOG
fprintf(stderr, "dlopen failed: %s\n", dlerror());
return NULL;
}
/* TODO use macro's to allow for static inclusion */
/* TODO use dlvsym() if available */
plugin = (struct plugin *)dlsym(handle, PLUGIN_SYMBOL);
if(!plugin) {
// TODO EINA_LOG
fprintf(stderr, "dlsym failed%s\n", dlerror());
return NULL;
}
if (plugin->magic != PLUGIN_MAGIC) {
// TODO EINA_LOG
fprintf(stderr, "Failed to init plugin, magic mismatch, plugin corrupt?\n");
return NULL;
}
plugin->_handle = handle;
if (plugin->load)
plugin->load();
return plugin;
}
int plugin_unload(struct plugin *plugin)
{
int error;
if (!plugin) {
// TODO EINA_LOG
fprintf(stderr, "Cannot unload plugin %p.\n", plugin);
return -EFAULT;
}
if (plugin->unload)
plugin->unload();
if (!plugin->_handle) {
// TODO EINA_LOG
fprintf(stderr, "Error, no handle for plugin %s\n",
plugin->info.name);
return -EFAULT;
}
error = dlclose(plugin->_handle);
if (error)
// TODO EINA_LOG
fprintf(stderr, "Failed to close %s\n", dlerror());
return error;
}
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