Sun Feb 23 07:00:00 CET 2003

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@621 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_waitforring.c

@@ -0,0 +1,130 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Wait for Ring Application
+ * 
+ * Copyright (C) 2003, Digium
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <asterisk/file.h>
+#include <asterisk/logger.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/module.h>
+#include <asterisk/options.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <pthread.h>
+
+
+static char *synopsis = "Wait for Ring Application";
+
+static char *tdesc = "Waits until first ring after time";
+
+static char *desc = "  WaitForRing(timeout)\n"
+"Returns 0 after waiting at least timeout seconds. and\n"
+"only after the next ring has completed.  Returns 0 on\n"
+"success or -1 on hangup\n";
+
+static char *app = "WaitForRing";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int waitforring_exec(struct ast_channel *chan, void *data)
+{
+	struct localuser *u;
+	struct ast_frame *f;
+	int res = 0;
+	int ms;
+	if (!data || (sscanf(data, "%d", &ms) != 1)) {
+                ast_log(LOG_WARNING, "SoftHangup requires an argument (minimum seconds)\n");
+		return 0;
+	}
+	ms *= 1000;
+	LOCAL_USER_ADD(u);
+	while(ms > 0) {
+		ms = ast_waitfor(chan, ms);
+		if (ms < 0) {
+			res = ms;
+			break;
+		}
+		if (ms > 0) {
+			f = ast_read(chan);
+			if (!f) {
+				res = -1;
+				break;
+			}
+			if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) {
+				if (option_verbose > 2)
+					ast_verbose(VERBOSE_PREFIX_3 "Got a ring but still waiting for timeout\n");
+			}
+			ast_frfree(f);
+		}
+	}
+	/* Now we're really ready for the ring */
+	if (!res) {
+		ms = 99999999;
+		while(ms > 0) {
+			ms = ast_waitfor(chan, ms);
+			if (ms < 0) {
+				res = ms;
+				break;
+			}
+			if (ms > 0) {
+				f = ast_read(chan);
+				if (!f) {
+					res = -1;
+					break;
+				}
+				if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) {
+					if (option_verbose > 2)
+						ast_verbose(VERBOSE_PREFIX_3 "Got a ring after the timeout\n");
+					ast_frfree(f);
+					break;
+				}
+				ast_frfree(f);
+			}
+		}
+	}
+	LOCAL_USER_REMOVE(u);
+
+	return res;
+}
+
+int unload_module(void)
+{
+	STANDARD_HANGUP_LOCALUSERS;
+	return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+	return ast_register_application(app, waitforring_exec, synopsis, desc);
+}
+
+char *description(void)
+{
+	return tdesc;
+}
+
+int usecount(void)
+{
+	int res;
+	STANDARD_USECOUNT(res);
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}