X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fsafe-read.h;h=87417bc213a21f22dcbde2369239b429c3a420f8;hb=a1c8d3d65945c9d7b1ad9ac02e980baa0394e30d;hp=047033dccb8ed07428c97b2093d7e5db39bb27cb;hpb=3030c5b5e0a5199e16b05927da72c43c42f211c3;p=gnulib.git
diff --git a/lib/safe-read.h b/lib/safe-read.h
index 047033dcc..87417bc21 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, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2006, 2009-2012 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: Mac OS 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