[glib] open(2): POSIX compatibility.

[Colin Walters <walters src gnome org>]

commit 230efe70f418017e809e99710e0519f716edebe3
Author: Antoine Jacoutot <ajacoutot openbsd org>
Date:   Sun Aug 14 01:23:36 2011 +0200

    open(2): POSIX compatibility.
    
    Posix allows for open(2) to fail with errno = EINTR.
    Normal this isn't seen when opening files. However in some case we are
    opening a fifo for write which will block until another process opens it
    for read. If a signal is received while blocked, open(2) fails with
    errno = EINTR.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=656492

 glib/giounix.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/glib/giounix.c b/glib/giounix.c
index 5624ac9..969c3cc 100644
--- a/glib/giounix.c
+++ b/glib/giounix.c
@@ -524,7 +524,13 @@ g_io_channel_new_file (const gchar *filename,
     }
 
   create_mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
-  fid = open (filename, flags, create_mode);
+
+  do
+    {
+      fid = open (filename, flags, create_mode);
+    }
+  while (fid == -1 && errno == EINTR);
+
   if (fid == -1)
     {
       int err = errno;