Add varnishstat program

git-svn-id: http://www.varnish-cache.org/svn/trunk@247 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/Makefile.am

 # $Id$
 
-SUBDIRS = varnishd varnishlog
+SUBDIRS = varnishd varnishlog varnishstat

bin/varnishstat/Makefile.am

+# $Id: Makefile.am 133 2006-04-06 09:38:00Z phk $
+
+INCLUDES = -I$(top_srcdir)/include
+
+bin_PROGRAMS = varnishstat
+
+varnishlog_SOURCES = varnishstat.c
+
+# varnishlog_LDADD = $(top_builddir)/lib/libvarnishapi/libvarnishapi.la 

bin/varnishstat/varnishstat.c

+/*
+ * $Id: varnishlog.c 153 2006-04-25 08:17:43Z phk $
+ *
+ * Log tailer for Varnish
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include <shmlog.h>
+
+static struct shmloghead *loghead;
+
+int
+main(int argc, char **argv)
+{
+	int fd;
+	int i;
+	struct shmloghead slh;
+	struct varnish_stats *VSL_stats;
+
+	fd = open(SHMLOG_FILENAME, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Cannot open %s: %s\n",
+		    SHMLOG_FILENAME, strerror(errno));
+		exit (1);
+	}
+	i = read(fd, &slh, sizeof slh);
+	if (i != sizeof slh) {
+		fprintf(stderr, "Cannot read %s: %s\n",
+		    SHMLOG_FILENAME, strerror(errno));
+		exit (1);
+	}
+	if (slh.magic != SHMLOGHEAD_MAGIC) {
+		fprintf(stderr, "Wrong magic number in file %s\n",
+		    SHMLOG_FILENAME);
+		exit (1);
+	}
+
+	loghead = mmap(NULL, slh.size + sizeof slh,
+	    PROT_READ, MAP_HASSEMAPHORE, fd, 0);
+	if (loghead == MAP_FAILED) {
+		fprintf(stderr, "Cannot mmap %s: %s\n",
+		    SHMLOG_FILENAME, strerror(errno));
+		exit (1);
+	}
+	
+	VSL_stats = &loghead->stats;
+
+#define MAC_STAT(n,t,f,d) \
+    printf("%12ju  " d "\n", (VSL_stats->n));
+#include "stat_field.h"
+#undef MAC_STAT
+
+	exit (0);
+
+}

configure.ac

@@ -68,6 +68,7 @@ AC_CONFIG_FILES([
     bin/Makefile
     bin/varnishd/Makefile
     bin/varnishlog/Makefile
+    bin/varnishstat/Makefile
     contrib/Makefile
     include/Makefile
     lib/Makefile