X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fwait-process.h;h=9cdce30478ad299ca682df8505d3e557e9686b73;hb=4a6f6ccf4f28947ff868115b73434a9c5af32727;hp=22001426368d3dd9a9d5ae25566ae1139f49019e;hpb=5150a50d0d55e76e32295080dac53cb4324bce00;p=gnulib.git

diff --git a/lib/wait-process.h b/lib/wait-process.h
index 220014263..9cdce3047 100644
--- a/lib/wait-process.h
+++ b/lib/wait-process.h
@@ -1,5 +1,5 @@
 /* Waiting for a subprocess to finish.
-   Copyright (C) 2001-2003 Free Software Foundation, Inc.
+   Copyright (C) 2001-2003, 2006 Free Software Foundation, Inc.
    Written by Bruno Haible <haible@clisp.cons.org>, 2001.
 
    This program is free software; you can redistribute it and/or modify
@@ -14,16 +14,14 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #ifndef _WAIT_PROCESS_H
 #define _WAIT_PROCESS_H
 
 /* Get pid_t.  */
 #include <stdlib.h>
-#ifdef HAVE_UNISTD_H
 #include <unistd.h>
-#endif
 #include <sys/types.h>
 
 #include <stdbool.h>
@@ -36,9 +34,23 @@ extern "C" {
 
 /* Wait for a subprocess to finish.  Return its exit code.
    If it didn't terminate correctly, exit if exit_on_error is true, otherwise
-   return 127.  */
+   return 127.
+   Arguments:
+   - child is the pid of the subprocess.
+   - progname is the name of the program executed by the subprocess, used for
+     error messages.
+   - If ignore_sigpipe is true, consider a subprocess termination due to
+     SIGPIPE as equivalent to a success.  This is suitable for processes whose
+     only purpose is to write to standard output.  This flag can be safely set
+     to false when the process' standard output is known to go to DEV_NULL.
+   - If null_stderr is true, the usual error message to stderr will be omitted.
+     This is suitable when the subprocess does not fulfill an important task.
+   - slave_process should be set to true if the process has been launched as a
+     slave process.
+   - If exit_on_error is true, any error will cause the main process to exit
+     with an error status.  */
 extern int wait_subprocess (pid_t child, const char *progname,
-			    bool null_stderr,
+			    bool ignore_sigpipe, bool null_stderr,
 			    bool slave_process, bool exit_on_error);
 
 /* Register a subprocess as being a slave process.  This means that the