X-Git-Url: http://git.squeep.com/?p=reservoir_sample;a=blobdiff_plain;f=notify.c;fp=notify.c;h=78e7e44065034a21b46cb0e5a5c77530304bcf89;hp=0000000000000000000000000000000000000000;hb=694d004f3c2a521672d468a8bc77dc2b635ffd9f;hpb=6bd502bb5a3c61bb3b0cd76d613973346e8a5d90

diff --git a/notify.c b/notify.c
new file mode 100644
index 0000000..78e7e44
--- /dev/null
+++ b/notify.c
@@ -0,0 +1,36 @@
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "notify.h"
+
+/* common messaging hook */
+
+/* generic notifier */
+static
+void notify_default_(unsigned int l, const char *fmt, ...) {
+	FILE *f = stderr;
+	va_list ap;
+	const char *level_names[] = {
+		"FATAL",
+		"ERROR",
+		"INFO",
+		"VERBOSE",
+		"DEBUG",
+		"DEBUG_LOCK",
+	};
+	const size_t levels = sizeof level_names / sizeof *level_names;
+
+	va_start(ap, fmt);
+	flockfile(f);
+	if (l < levels) {
+		fprintf(f, "%s", level_names[l]);
+	} else {
+		fprintf(f, "[%d] ", l);
+	}
+	vfprintf(f, fmt, ap);
+	funlockfile(f);
+	va_end(ap);
+}
+
+notify_fn_t *notify __attribute__((format(printf, 2, 3))) = notify_default_;