vlog: Add VLOG_ABORT() to log and call abort().

[openvswitch] / lib / vlog.c

diff --git a/lib/vlog.c b/lib/vlog.c
index 128ed45dcf5b46b6bb6ba6aa650ea5df3f556065..d4d277aadd6bb23efa746df8eccb53b8392ce1e5 100644 (file)
--- a/lib/vlog.c
+++ b/lib/vlog.c
@@ -745,6 +745,12 @@ vlog(const struct vlog_module *module, enum vlog_level level,
     va_end(args);
 }
 
+/* Logs 'message' to 'module' at maximum verbosity, then exits with a failure
+ * exit code.  Always writes the message to stderr, even if the console
+ * facility is disabled.
+ *
+ * Choose this function instead of vlog_abort_valist() if the daemon monitoring
+ * facility shouldn't automatically restart the current daemon.  */
 void
 vlog_fatal_valist(const struct vlog_module *module_,
                   const char *message, va_list args)
@@ -759,6 +765,12 @@ vlog_fatal_valist(const struct vlog_module *module_,
     ovs_fatal_valist(0, message, args);
 }
 
+/* Logs 'message' to 'module' at maximum verbosity, then exits with a failure
+ * exit code.  Always writes the message to stderr, even if the console
+ * facility is disabled.
+ *
+ * Choose this function instead of vlog_abort() if the daemon monitoring
+ * facility shouldn't automatically restart the current daemon.  */
 void
 vlog_fatal(const struct vlog_module *module, const char *message, ...)
 {
@@ -769,6 +781,40 @@ vlog_fatal(const struct vlog_module *module, const char *message, ...)
     va_end(args);
 }
 
+/* Logs 'message' to 'module' at maximum verbosity, then calls abort().  Always
+ * writes the message to stderr, even if the console facility is disabled.
+ *
+ * Choose this function instead of vlog_fatal_valist() if the daemon monitoring
+ * facility should automatically restart the current daemon.  */
+void
+vlog_abort_valist(const struct vlog_module *module_,
+                  const char *message, va_list args)
+{
+    struct vlog_module *module = (struct vlog_module *) module_;
+
+    /* Don't log this message to the console to avoid redundancy with the
+     * message written by the later ovs_abort_valist(). */
+    module->levels[VLF_CONSOLE] = VLL_OFF;
+
+    vlog_valist(module, VLL_EMER, message, args);
+    ovs_abort_valist(0, message, args);
+}
+
+/* Logs 'message' to 'module' at maximum verbosity, then calls abort().  Always
+ * writes the message to stderr, even if the console facility is disabled.
+ *
+ * Choose this function instead of vlog_fatal() if the daemon monitoring
+ * facility should automatically restart the current daemon.  */
+void
+vlog_abort(const struct vlog_module *module, const char *message, ...)
+{
+    va_list args;
+
+    va_start(args, message);
+    vlog_abort_valist(module, message, args);
+    va_end(args);
+}
+
 bool
 vlog_should_drop(const struct vlog_module *module, enum vlog_level level,
                  struct vlog_rate_limit *rl)