Initial version.

src/nxt_log_moderation.h

@@ -0,0 +1,40 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#ifndef _NXT_LOG_MODERATION_H_INCLUDED_
+#define _NXT_LOG_MODERATION_H_INCLUDED_
+
+
+typedef struct {
+    uint32_t               level;
+    uint32_t               limit;
+    const char             *msg;
+    nxt_thread_spinlock_t  lock;
+    nxt_pid_t              pid;
+    nxt_uint_t             count;
+    nxt_time_t             last;
+    nxt_event_timer_t      timer;
+} nxt_log_moderation_t;
+
+
+#define NXT_LOG_MODERATION  0, -1, 0, 0, NXT_EVENT_TIMER
+
+
+#define                                                                       \
+nxt_log_moderate(_mod, _level, _log, ...)                                     \
+    do {                                                                      \
+        nxt_log_t  *_log_ = _log;                                             \
+                                                                              \
+        if (_log_->level >= (_level) && nxt_log_moderate_allow(_mod)) {       \
+            _log_->handler(_level, _log_, __VA_ARGS__);                       \
+        }                                                                     \
+    } while (0)
+
+
+nxt_bool_t nxt_log_moderate_allow(nxt_log_moderation_t *mod);
+
+
+#endif /* _NXT_LOG_MODERATION_H_INCLUDED_ */