From fd791f2c742d5aefc7524cdc9c62622c4a6a7531 Mon Sep 17 00:00:00 2001
From: markster <markster@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Sun, 5 Dec 1999 07:28:29 +0000
Subject: Version 0.1.0 from FTP

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@92 f38db490-d61c-443f-a65b-d21fe96a405b
---
 logger.c | 204 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 204 insertions(+)
 create mode 100755 logger.c

(limited to 'logger.c')

diff --git a/logger.c b/logger.c
new file mode 100755
index 000000000..b67c88f08
--- /dev/null
+++ b/logger.c
@@ -0,0 +1,204 @@
+/*
+ * Cheops Next Generation
+ * 
+ * Mark Spencer <markster@marko.net>
+ *
+ * Copyright(C) 1999, Adtran, Inc.
+ * 
+ * Distributed under the terms of the GNU General Public License (GPL) Version 2
+ *
+ * Logging routines
+ *
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <time.h>
+#include <asterisk/logger.h>
+#include <asterisk/options.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <pthread.h>
+#include <sys/stat.h>
+#include "asterisk.h"
+
+#define AST_EVENT_LOG AST_LOG_DIR "/" EVENTLOG
+
+#define MAX_MSG_QUEUE 200
+
+static pthread_mutex_t msglist_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static struct msglist {
+	char *msg;
+	struct msglist *next;
+} *list = NULL, *last = NULL;
+
+static int msgcnt = 0;
+
+static FILE *eventlog = NULL;
+
+static char *levels[] = {
+	"DEBUG",
+	"EVENT",
+	"NOTICE",
+	"WARNING",
+	"ERROR"
+};
+
+static struct verb {
+	void (*verboser)(char *string, int opos, int replacelast, int complete);
+	struct verb *next;
+} *verboser = NULL;
+
+int init_logger(void)
+{
+
+	mkdir(AST_LOG_DIR, 0755);
+	eventlog = fopen(AST_EVENT_LOG, "a");
+	if (eventlog) {
+		ast_log(LOG_EVENT, "Started Asterisk Event Logger\n");
+		if (option_verbose)
+			ast_verbose("Asterisk Event Logger Started\n");
+		return 0;
+	} else 
+		ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno));
+	return -1;
+}
+
+extern void ast_log(int level, char *file, int line, char *function, char *fmt, ...)
+{
+	char date[256];
+	time_t t;
+	struct tm *tm;
+
+	va_list ap;
+	va_start(ap, fmt);
+
+	if (level == 1 /* Event */) {
+		time(&t);
+		tm = localtime(&t);
+		if (tm) {
+			/* Log events into the event log file, with a different format */
+			strftime(date, sizeof(date), "%b %e %T", tm);
+			fprintf(eventlog, "%s asterisk[%d]: ", date, getpid());
+			vfprintf(eventlog, fmt, ap);
+			fflush(eventlog);
+		} else
+			ast_log(LOG_WARNING, "Unable to retrieve local time?\n");
+	} else {
+		fprintf(stdout, "%s: File %s, Line %d (%s): ", levels[level], file, line, function);
+		vfprintf(stdout, fmt, ap);
+		fflush(stdout);
+	}
+	va_end(ap);
+}
+
+extern void ast_verbose(char *fmt, ...)
+{
+	static char stuff[256];
+	static int pos = 0, opos;
+	static int replacelast = 0, complete;
+	struct msglist *m;
+	struct verb *v;
+	va_list ap;
+	va_start(ap, fmt);
+	pthread_mutex_lock(&msglist_lock);
+	vsnprintf(stuff + pos, sizeof(stuff) - pos, fmt, ap);
+	opos = pos;
+	pos = strlen(stuff);
+	if (fmt[strlen(fmt)-1] == '\n') 
+		complete = 1;
+	else
+		complete=0;
+	if (complete) {
+		if (msgcnt < MAX_MSG_QUEUE) {
+			/* Allocate new structure */
+			m = malloc(sizeof(struct msglist));
+			msgcnt++;
+		} else {
+			/* Recycle the oldest entry */
+			m = list;
+			list = list->next;
+			free(m->msg);
+		}
+		if (m) {
+			m->msg = strdup(stuff);
+			if (m->msg) {
+				if (last)
+					last->next = m;
+				else
+					list = m;
+				m->next = NULL;
+				last = m;
+			} else {
+				msgcnt--;
+				ast_log(LOG_DEBUG, "Out of memory\n");
+				free(m);
+			}
+		}
+	}
+	if (verboser) {
+		v = verboser;
+		while(v) {
+			v->verboser(stuff, opos, replacelast, complete);
+			v = v->next;
+		}
+	} else
+		fprintf(stdout, stuff + opos);
+
+	if (fmt[strlen(fmt)-1] != '\n') 
+		replacelast = 1;
+	else 
+		replacelast = pos = 0;
+	
+	va_end(ap);
+	pthread_mutex_unlock(&msglist_lock);
+}
+
+
+int ast_register_verbose(void (*v)(char *string, int opos, int replacelast, int complete)) 
+{
+	struct msglist *m;
+	struct verb *tmp;
+	/* XXX Should be more flexible here, taking > 1 verboser XXX */
+	if ((tmp = malloc(sizeof (struct verb)))) {
+		tmp->verboser = v;
+		pthread_mutex_lock(&msglist_lock);
+		tmp->next = verboser;
+		verboser = tmp;
+		m = list;
+		while(m) {
+			/* Send all the existing entries that we have queued (i.e. they're likely to have missed) */
+			v(m->msg, 0, 0, 1);
+			m = m->next;
+		}
+		pthread_mutex_unlock(&msglist_lock);
+		return 0;
+	}
+	return -1;
+}
+
+int ast_unregister_verbose(void (*v)(char *string, int opos, int replacelast, int complete))
+{
+	int res = -1;
+	struct verb *tmp, *tmpl=NULL;
+	pthread_mutex_lock(&msglist_lock);
+	tmp = verboser;
+	while(tmp) {
+		if (tmp->verboser == v)	{
+			if (tmpl)
+				tmpl->next = tmp->next;
+			else
+				verboser = tmp->next;
+			break;
+		}
+		tmpl = tmp;
+		tmp = tmp->next;
+	}
+	if (tmp)
+		res = 0;
+	pthread_mutex_unlock(&msglist_lock);
+	return res;
+}
-- 
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