added dnsperf

dns/dnsperf-src-2.0.0.0-1/log.c

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2011 - 2012 Nominum, Inc.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose with or without fee is hereby granted,
+ * provided that the above copyright notice and this permission notice
+ * appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <pthread.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "log.h"
+#include "util.h"
+
+pthread_mutex_t log_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void
+vlog(FILE *stream, const char *prefix, const char *fmt, va_list args)
+{
+	LOCK(&log_lock);
+	fflush(stdout);
+	if (prefix != NULL)
+		fprintf(stream, "%s: ", prefix);
+	vfprintf(stream, fmt, args);
+	fprintf(stream, "\n");
+	UNLOCK(&log_lock);
+}
+
+void
+perf_log_printf(const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	vlog(stdout, NULL, fmt, args);
+}
+
+void
+perf_log_fatal(const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	vlog(stderr, "Error", fmt, args);
+	exit(1);
+}
+
+void
+perf_log_warning(const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	vlog(stderr, "Warning", fmt, args);
+}