add support for per-module version numbers

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5862 65c4cc65-6c06-0410-ace0-fbb531ad65f3

cli.c

@@ -227,19 +227,18 @@ static int handle_unload(int fd, int argc, char *argv[])
 	return RESULT_SUCCESS;
 }
 
-#define MODLIST_FORMAT  "%-25s %-40.40s %-10d\n"
-#define MODLIST_FORMAT2 "%-25s %-40.40s %-10s\n"
+#define MODLIST_FORMAT  "%-30s %-40.40s %-20.20s %-10d\n"
+#define MODLIST_FORMAT2 "%-30s %-40.40s %-20.20s %-10s\n"
 
 AST_MUTEX_DEFINE_STATIC(climodentrylock);
 static int climodentryfd = -1;
 
-static int modlist_modentry(char *module, char *description, int usecnt, char *like)
+static int modlist_modentry(const char *module, const char *description, int usecnt, const char *version, const char *like)
 {
 	/* Comparing the like with the module */
 	if (strstr(module, like) != NULL) {
-		ast_cli(climodentryfd, MODLIST_FORMAT, module, description, usecnt);
+		ast_cli(climodentryfd, MODLIST_FORMAT, module, description, version, usecnt);
 		return 1;
-		
 	} 
 	return 0;
 }
@@ -385,7 +384,7 @@ static int handle_modlist(int fd, int argc, char *argv[])
 		
 	ast_mutex_lock(&climodentrylock);
 	climodentryfd = fd;
-	ast_cli(fd, MODLIST_FORMAT2, "Module", "Description", "Use Count");
+	ast_cli(fd, MODLIST_FORMAT2, "Module", "Description", "Version", "Use Count");
 	ast_cli(fd,"%d modules loaded\n", ast_update_module_list(modlist_modentry, like));
 	climodentryfd = -1;
 	ast_mutex_unlock(&climodentrylock);

funcs/pbx_functions.c

@@ -56,3 +56,8 @@ char *key()
 {
 	return ASTERISK_GPL_KEY;
 }
+
+const char *version()
+{
+	return "$Revision$";
+}

include/asterisk/module.h

@@ -66,6 +66,8 @@ char *key(void);		/*! Return the below mentioned key, unmodified */
  */
 int reload(void);		/*! reload configs */
 
+const char *version(void);
+
 #define ASTERISK_GPL_KEY \
 	"This paragraph is Copyright (C) 2000, Linux Support Services, Inc.  \
 In order for your module to load, it must return this key via a function \
@@ -112,9 +114,10 @@ void ast_update_use_count(void);
 /*!
  * \param modentry a callback to an updater function
  * For each of the modules loaded, modentry will be executed with the resource, description,
- * and usecount values of each particular module.
+ * version, and usecount values of each particular module.
  */
-int ast_update_module_list(int (*modentry)(char *module, char *description, int usecnt, char *like), char *like);
+int ast_update_module_list(int (*modentry)(const char *module, const char *description, int usecnt, const char *version, const char *like),
+			   const char *like);
 
 /*! Ask this procedure to be run with modules have been updated */
 /*!

loader.c

@@ -51,6 +51,7 @@ struct module {
 	char *(*description)(void);
 	char *(*key)(void);
 	int (*reload)(void);
+	const char *(*version)(void);
 	void *lib;
 	char resource[256];
 	struct module *next;
@@ -252,6 +253,11 @@ int ast_module_reload(const char *name)
 	return reloaded;
 }
 
+static const char *unknown_version(void)
+{
+	return "--unknown--";
+}
+
 static int __load_resource(const char *resource_name, const struct ast_config *cfg)
 {
 	static char fn[256];
@@ -347,9 +353,17 @@ static int __load_resource(const char *resource_name, const struct ast_config *c
 		ast_log(LOG_WARNING, "No key routine in module %s\n", fn);
 		errors++;
 	}
+
 	m->reload = dlsym(m->lib, "reload");
 	if (m->reload == NULL)
 		m->reload = dlsym(m->lib, "_reload");
+
+	m->version = dlsym(m->lib, "version");
+	if (m->version == NULL)
+		m->version = dlsym(m->lib, "_version");
+	if (m->version == NULL)
+		m->version = unknown_version;
+
 	if (!m->key || !(key = m->key())) {
 		ast_log(LOG_WARNING, "Key routine returned NULL in module %s\n", fn);
 		key = NULL;
@@ -549,20 +563,23 @@ void ast_update_use_count(void)
 	
 }
 
-int ast_update_module_list(int (*modentry)(char *module, char *description, int usecnt, char *like), char *like)
+int ast_update_module_list(int (*modentry)(const char *module, const char *description, int usecnt, const char *version, const char *like),
+			   const char *like)
 {
 	struct module *m;
 	int unlock = -1;
 	int total_mod_loaded = 0;
+
 	if (ast_mutex_trylock(&modlock))
 		unlock = 0;
 	m = module_list;
 	while (m) {
-		total_mod_loaded += modentry(m->resource, m->description(), m->usecount(), like);
+		total_mod_loaded += modentry(m->resource, m->description(), m->usecount(), m->version(), like);
 		m = m->next;
 	}
 	if (unlock)
 		ast_mutex_unlock(&modlock);
+
 	return total_mod_loaded;
 }