Initial version.

src/nxt_app_log.c

@@ -0,0 +1,126 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include <nxt_main.h>
+#include <nxt_cycle.h>
+
+
+static nxt_time_string_t  nxt_log_error_time_cache;
+static u_char *nxt_log_error_time(u_char *buf, nxt_realtime_t *now,
+    struct tm *tm, size_t size, const char *format);
+static nxt_time_string_t  nxt_log_debug_time_cache;
+static u_char *nxt_log_debug_time(u_char *buf, nxt_realtime_t *now,
+    struct tm *tm, size_t size, const char *format);
+
+
+void nxt_cdecl
+nxt_log_time_handler(nxt_uint_t level, nxt_log_t *log, const char *fmt, ...)
+{
+    u_char             *p, *syslogmsg, *end;
+    va_list            args;
+    nxt_fid_t          fid;
+    const char         *id;
+    nxt_fiber_t        *fib;
+    nxt_thread_t       *thr;
+    nxt_time_string_t  *time_cache;
+    u_char             msg[NXT_MAX_ERROR_STR];
+
+    thr = nxt_thread();
+
+    end = msg + NXT_MAX_ERROR_STR;
+
+    time_cache = (log->level != NXT_LOG_DEBUG) ? &nxt_log_error_time_cache:
+                                                 &nxt_log_debug_time_cache;
+
+    p = nxt_thread_time_string(thr, time_cache, msg);
+
+    syslogmsg = p;
+
+    fib = nxt_fiber_self(thr);
+
+    if (fib != NULL) {
+        id = "[%V] %PI#%PT#%PF ";
+        fid = nxt_fiber_id(fib);
+
+    } else {
+        id = "[%V] %PI#%PT ";
+        fid = 0;
+    }
+
+    p = nxt_sprintf(p, end, id, &nxt_log_levels[level], nxt_pid,
+                    nxt_thread_tid(thr), fid);
+
+    if (log->ident != 0) {
+        p = nxt_sprintf(p, end, "*%D ", log->ident);
+    }
+
+    va_start(args, fmt);
+    p = nxt_vsprintf(p, end, fmt, args);
+    va_end(args);
+
+    if (level != NXT_LOG_DEBUG && log->ctx_handler != NULL) {
+        p = log->ctx_handler(log->ctx, p, end);
+    }
+
+    if (p > end - NXT_LINEFEED_SIZE) {
+        p = end - NXT_LINEFEED_SIZE;
+    }
+
+    nxt_linefeed(p);
+
+    (void) nxt_write_console(nxt_stderr, msg, p - msg);
+
+    if (level <= NXT_LOG_ALERT) {
+        *(p - NXT_LINEFEED_SIZE) = '\0';
+
+        /*
+         * The syslog LOG_ALERT level is enough, because
+         * LOG_EMERG level broadcasts a message to all users.
+         */
+        nxt_write_syslog(LOG_ALERT, syslogmsg);
+    }
+}
+
+
+static nxt_time_string_t  nxt_log_error_time_cache = {
+    (nxt_atomic_uint_t) -1,
+    nxt_log_error_time,
+    "%4d/%02d/%02d %02d:%02d:%02d ",
+    sizeof("1970/09/28 12:00:00 ") - 1,
+    NXT_THREAD_TIME_LOCAL,
+    NXT_THREAD_TIME_MSEC,
+};
+
+
+static u_char *
+nxt_log_error_time(u_char *buf, nxt_realtime_t *now, struct tm *tm, size_t size,
+    const char *format)
+{
+    return nxt_sprintf(buf, buf + size, format,
+                       tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+                       tm->tm_hour, tm->tm_min, tm->tm_sec);
+}
+
+
+static nxt_time_string_t  nxt_log_debug_time_cache = {
+    (nxt_atomic_uint_t) -1,
+    nxt_log_debug_time,
+    "%4d/%02d/%02d %02d:%02d:%02d.%03d ",
+    sizeof("1970/09/28 12:00:00.000 ") - 1,
+    NXT_THREAD_TIME_LOCAL,
+    NXT_THREAD_TIME_MSEC,
+};
+
+
+static u_char *
+nxt_log_debug_time(u_char *buf, nxt_realtime_t *now, struct tm *tm, size_t size,
+    const char *format)
+{
+    return nxt_sprintf(buf, buf + size, format,
+                       tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+                       tm->tm_hour, tm->tm_min, tm->tm_sec,
+                       now->nsec / 1000000);
+}