Add GModule support to eglib

2 files changed, 85 insertions, 0 deletions

diff --git a/eglib/gmain.c b/eglib/gmain.c
index b341d516..ce35b816 100644
--- a/eglib/gmain.c
+++ b/eglib/gmain.c
@@ -16,6 +16,7 @@
 #include <sys/mman.h>
 #include <sys/file.h>
 #include <ctype.h>
+#include <dlfcn.h>
 
 #include <gmain.h>
 
@@ -1577,3 +1578,71 @@ gchar *g_string_free(GString *string, gboolean free_segment)
 
 	return segment;
 }
+
+/* GModule */
+
+struct _GModule {
+	void *handle;
+};
+
+static const char *dl_error_string = NULL;
+
+GModule *g_module_open(const gchar *file_name, GModuleFlags flags)
+{
+	GModule *module;
+
+	module = g_try_new0(GModule, 1);
+	if (module == NULL) {
+		dl_error_string = strerror(ENOMEM);
+		return NULL;
+	}
+
+	module->handle = dlopen(file_name, flags);
+
+	if (module->handle == NULL) {
+		dl_error_string = dlerror();
+		g_free(module);
+		return NULL;
+	}
+
+	return module;
+}
+
+gboolean g_module_symbol(GModule *module, const gchar *symbol_name,
+				gpointer *symbol)
+{
+	void *sym;
+
+	dlerror();
+	sym = dlsym(module->handle, symbol_name);
+	dl_error_string = dlerror();
+
+	if (dl_error_string != NULL)
+		return FALSE;
+
+	*symbol = sym;
+
+	return TRUE;
+}
+
+gboolean g_module_close(GModule *module)
+{
+	if (dlclose(module->handle) != 0) {
+		dl_error_string = dlerror();
+		return FALSE;
+	}
+
+	g_free(module);
+
+	return TRUE;
+}
+
+const gchar *g_module_error(void)
+{
+	const char *str;
+
+	str = dl_error_string;
+	dl_error_string = NULL;
+
+	return str;
+}
diff --git a/eglib/gmain.h b/eglib/gmain.h
index 2ed00fb3..cfc53378 100644
--- a/eglib/gmain.h
+++ b/eglib/gmain.h
@@ -279,4 +279,20 @@ void g_string_append_printf(GString *string, const gchar *format, ...);
 
 gchar *g_string_free(GString *string, gboolean free_segment);
 
+/* GModule */
+
+typedef struct _GModule GModule;
+
+typedef enum {
+	G_MODULE_BIND_LAZY	= 1 << 0,
+	G_MODULE_BIND_LOCAL	= 1 << 1,
+	G_MODULE_BIND_MASK	= 0x03
+} GModuleFlags;
+
+GModule *g_module_open(const gchar *file_name, GModuleFlags flags);
+gboolean g_module_symbol(GModule *module, const gchar *symbol_name,
+				gpointer *symbol);
+gboolean g_module_close(GModule *module);
+const gchar *g_module_error(void);
+
 #endif /* __GMAIN_H */