Version 0.1.0 from FTP

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@13 f38db490-d61c-443f-a65b-d21fe96a405b
1999-10-28 15:30:50 +00:00 · 1999-10-28 15:30:50 +00:00 · f5d963d9cf
parent 80d00a57bf
commit f5d963d9cf
1 changed files with 127 additions and 0 deletions
--- a/include/asterisk/module.h
+++ b/include/asterisk/module.h
@ -0,0 +1,127 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Module definitions
+ * 
+ * Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#ifndef _ASTERISK_MODULE_H
+#define _ASTERISK_MODULE_H
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+/* Every module must provide these functions */
+
+int load_module(void);			/* Initialize the module */
+int unload_module(void);		/* Cleanup all module structures, 
+					   sockets, etc */
+int usecount(void);			/* How many channels provided by this module are in use? */
+char *description(void);		/* Description of this module */
+
+#define AST_MODULE_CONFIG "modules.conf" /* Module configuration file */
+
+#define AST_FORCE_SOFT 0
+#define AST_FORCE_FIRM 1
+#define AST_FORCE_HARD 2
+
+/* Load a module */
+int ast_load_resource(char *resource_name);
+
+/* Unload a module.  Force unloading a module is not recommended. */
+int ast_unload_resource(char *resource_name, int force);
+
+/* Notify when usecount has been changed */
+void ast_update_use_count(void);
+
+/* Ask for a list of modules, descriptions, and use counts */
+int ast_update_module_list(int (*modentry)(char *module, char *description, int usecnt));
+
+/* Ask this procedure to be run with modules have been updated */
+int ast_loader_register(int (*updater)(void));
+
+/* No longer run me when modules are updated */
+int ast_loader_unregister(int (*updater)(void));
+
+/* Local user routines keep track of which channels are using a given module resource.
+   They can help make removing modules safer, particularly if they're in use at the time
+   they have been requested to be removed */
+
+#define STANDARD_LOCAL_USER struct localuser { \
+								struct ast_channel *chan; \
+								struct localuser *next; \
+							}
+
+#define LOCAL_USER_DECL static pthread_mutex_t localuser_lock = PTHREAD_MUTEX_INITIALIZER; \
+						static struct localuser *localusers = NULL; \
+						static int localusecnt = 0;
+
+#define LOCAL_USER_ADD(u) { \
+ \
+	if (!(u=malloc(sizeof(struct localuser)))) { \
+		ast_log(LOG_WARNING, "Out of memory\n"); \
+		return -1; \
+	} \
+	pthread_mutex_lock(&localuser_lock); \
+	u->chan = chan; \
+	u->next = localusers; \
+	localusers = u; \
+	localusecnt++; \
+	pthread_mutex_unlock(&localuser_lock); \
+	ast_update_use_count(); \
+}
+
+#define LOCAL_USER_REMOVE(u) { \
+	struct localuser *uc, *ul = NULL; \
+	pthread_mutex_lock(&localuser_lock); \
+	uc = localusers; \
+	while (uc) { \
+		if (uc == u) { \
+			if (ul) \
+				ul->next = uc->next; \
+			else \
+				localusers = uc->next; \
+			break; \
+		} \
+		ul = uc; \
+		uc = uc->next; \
+	}\
+	free(u); \
+	localusecnt--; \
+	pthread_mutex_unlock(&localuser_lock); \
+	ast_update_use_count(); \
+}
+
+#define STANDARD_HANGUP_LOCALUSERS { \
+	struct localuser *u, *ul; \
+	pthread_mutex_lock(&localuser_lock); \
+	u = localusers; \
+	while(u) { \
+		ast_softhangup(u->chan); \
+		ul = u; \
+		u = u->next; \
+		free(ul); \
+	} \
+	pthread_mutex_unlock(&localuser_lock); \
+	localusecnt=0; \
+}
+
+#define STANDARD_USECOUNT(res) { \
+	pthread_mutex_lock(&localuser_lock); \
+	res = localusecnt; \
+	pthread_mutex_unlock(&localuser_lock); \
+}
+	
+	
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+#endif