From c1d9ed0143a340f7217428d58549fcc54cfbc367 Mon Sep 17 00:00:00 2001
From: phk <phk@d4fa192b-c00b-0410-8231-f00ffab90ce4>
Date: Sun, 22 Jun 2008 21:34:50 +0000
Subject: [PATCH] Hold a mutex for each log destination

git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2774 d4fa192b-c00b-0410-8231-f00ffab90ce4
---
 varnish-cache/bin/varnishtest/vtc_log.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/varnish-cache/bin/varnishtest/vtc_log.c b/varnish-cache/bin/varnishtest/vtc_log.c
index 44b85be0..e59a3f36 100644
--- a/varnish-cache/bin/varnishtest/vtc_log.c
+++ b/varnish-cache/bin/varnishtest/vtc_log.c
@@ -49,6 +49,7 @@ struct vtclog {
 #define VTCLOG_MAGIC	0x82731202
 	const char	*id;
 	struct vsb	*vsb;
+	pthread_mutex_t	mtx;
 };
 
 struct vtclog *
@@ -60,6 +61,7 @@ vtc_logopen(const char *id)
 	AN(vl);	
 	vl->id = id;
 	vl->vsb = vsb_newauto();
+	AZ(pthread_mutex_init(&vl->mtx, NULL));
 	return (vl);
 }
 
@@ -80,6 +82,7 @@ vtc_log(struct vtclog *vl, unsigned lvl, const char *fmt, ...)
 	assert(lvl < NLEAD);
 	if (lvl > vtc_verbosity)
 		return;
+	AZ(pthread_mutex_lock(&vl->mtx));
 	vsb_printf(vl->vsb, "%s %-4s ", lead[lvl], vl->id);
 	va_list ap;
 	va_start(ap, fmt);
@@ -90,6 +93,7 @@ vtc_log(struct vtclog *vl, unsigned lvl, const char *fmt, ...)
 	AZ(vsb_overflowed(vl->vsb));
 	(void)fputs(vsb_data(vl->vsb), stdout);
 	vsb_clear(vl->vsb);
+	AZ(pthread_mutex_unlock(&vl->mtx));
 	if (lvl == 0)
 		exit (1);
 }
@@ -108,6 +112,7 @@ vtc_dump(struct vtclog *vl, unsigned lvl, const char *pfx, const char *str)
 		return;
 	if (pfx == NULL)
 		pfx = "";
+	AZ(pthread_mutex_lock(&vl->mtx));
 	if (str == NULL) 
 		vsb_printf(vl->vsb, "%s %-4s %s(null)\n",
 		    lead[lvl], vl->id, pfx);
@@ -136,6 +141,7 @@ vtc_dump(struct vtclog *vl, unsigned lvl, const char *pfx, const char *str)
 	AZ(vsb_overflowed(vl->vsb));
 	(void)fputs(vsb_data(vl->vsb), stdout);
 	vsb_clear(vl->vsb);
+	AZ(pthread_mutex_unlock(&vl->mtx));
 	if (lvl == 0)
 		exit (1);
 }
-- 
2.39.5