From e66eb15b7be2534c9405900eb7350b538a146905 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Mon, 7 Jun 2010 10:35:08 +0000
Subject: merge r3473, r3474, r3385, r3386, r3537:

signal processing stability:

*) use sys_errlist[] in signal handler instead
   of non Async-Signal-Safe strerror_r()
*) do not update time in the timer signal handler,
   since localtime_r() is not Async-Signal-Safe function
*) use previously cached GMT offset value to update time from a signal handler
*) change ngx_time_update() interface since there are no notification methods
   those return time
*) introduce ngx_time_sigsafe_update() to update the error log time only
*) change ngx_time_update() interface
---
 src/os/unix/ngx_errno.h | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'src/os/unix/ngx_errno.h')

diff --git a/src/os/unix/ngx_errno.h b/src/os/unix/ngx_errno.h
index 379f36777..ddc2b2761 100644
--- a/src/os/unix/ngx_errno.h
+++ b/src/os/unix/ngx_errno.h
@@ -64,10 +64,22 @@ u_char *ngx_strerror_r(int err, u_char *errstr, size_t size);
 
 /* Solaris and Tru64 UNIX have thread-safe strerror() */
 
-#define ngx_strerror_r(err, errstr, size)  \
+#define ngx_strerror_r(err, errstr, size)                                    \
     ngx_cpystrn(errstr, (u_char *) strerror(err), size)
 
 #endif
 
 
+#if (NGX_HAVE_SYS_ERRLIST)
+
+#define ngx_sigsafe_strerror(err)                                            \
+    (err > 0 && err < sys_nerr) ? sys_errlist[err] : "Unknown error"
+
+#else
+
+#define ngx_sigsafe_strerror(err)  ""
+
+#endif
+
+
 #endif /* _NGX_ERRNO_H_INCLUDED_ */
-- 
cgit