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/* GTK - The GIMP Toolkit
* Copyright (C) 2014 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "reftest-module.h"
struct _ReftestModule {
int refcount;
char *filename;
GModule *module;
};
static GHashTable *all_modules = NULL;
static ReftestModule *
reftest_module_find_existing (const char *filename)
{
if (all_modules == NULL)
return NULL;
return g_hash_table_lookup (all_modules, filename ? filename : "");
}
static ReftestModule *
reftest_module_new_take (GModule *module,
char *filename)
{
ReftestModule *result;
g_return_val_if_fail (module != NULL, NULL);
result = g_slice_new0 (ReftestModule);
result->refcount = 1;
result->filename = filename;
result->module = module;
if (all_modules == NULL)
all_modules = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (all_modules, filename ? filename : g_strdup (""), result);
return result;
}
ReftestModule *
reftest_module_new_self (void)
{
ReftestModule *result;
GModule *module;
result = reftest_module_find_existing (NULL);
if (result)
return reftest_module_ref (result);
module = g_module_open (NULL, G_MODULE_BIND_LAZY);
if (module == NULL)
return NULL;
return reftest_module_new_take (module, NULL);
}
ReftestModule *
reftest_module_new (const char *directory,
const char *module_name)
{
ReftestModule *result;
char *full_path;
GModule *module;
g_return_val_if_fail (module_name != NULL, NULL);
full_path = g_module_build_path (directory, module_name);
result = reftest_module_find_existing (full_path);
if (result)
{
g_free (full_path);
return reftest_module_ref (result);
}
module = g_module_open (full_path, G_MODULE_BIND_LOCAL | G_MODULE_BIND_LAZY);
if (module == NULL)
{
g_free (full_path);
return NULL;
}
return reftest_module_new_take (module, full_path);
}
ReftestModule *
reftest_module_ref (ReftestModule *module)
{
g_return_val_if_fail (module != NULL, NULL);
module->refcount++;
return module;
}
void
reftest_module_unref (ReftestModule *module)
{
g_return_if_fail (module != NULL);
module->refcount--;
if (module->refcount > 0)
return;
if (!g_module_close (module->module))
{
g_assert_not_reached ();
}
if (!g_hash_table_remove (all_modules, module->filename ? module->filename : ""))
{
g_assert_not_reached ();
}
g_free (module->filename);
g_slice_free (ReftestModule, module);
}
GCallback
reftest_module_lookup (ReftestModule *module,
const char *function_name)
{
gpointer result;
g_return_val_if_fail (module != NULL, NULL);
g_return_val_if_fail (function_name != NULL, NULL);
if (!g_module_symbol (module->module, function_name, &result))
return NULL;
return result;
}
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