X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fsafe-read.h;h=7174de7e125945c03de0754c88f13628195b8bb4;hb=50901279d8e42ea4bccc2eef0a6b11e7c3dde4cf;hp=ba191713b681712ab85b59953e256a78a8b2d978;hpb=57fdfd3f8ec62b105c53bcdf6f127c35c7fe7391;p=gnulib.git
diff --git a/lib/safe-read.h b/lib/safe-read.h
index ba191713b..7174de7e1 100644
--- a/lib/safe-read.h
+++ b/lib/safe-read.h
@@ -1,5 +1,5 @@
/* An interface to read() that retries after interrupts.
- Copyright (C) 2002, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2006, 2009-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -14,6 +14,19 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see . */
+/* Some system calls may be interrupted and fail with errno = EINTR in the
+ following situations:
+ - The process is stopped and restarted (signal SIGSTOP and SIGCONT, user
+ types Ctrl-Z) on some platforms: MacOS X.
+ - The process receives a signal for which a signal handler was installed
+ with sigaction() with an sa_flags field that does not contain
+ SA_RESTART.
+ - The process receives a signal for which a signal handler was installed
+ with signal() and for which no call to siginterrupt(sig,0) was done,
+ on some platforms: AIX, HP-UX, IRIX, OSF/1, Solaris.
+
+ This module provides a wrapper around read() that handles EINTR. */
+
#include
#ifdef __cplusplus