Get rid of E_SIGNAL_PIPE.

[paraslash.git] / signal.c

diff --git a/signal.c b/signal.c
index 6de9adf817f1a7b1885133729cd741dcff72399f..1db008ca89a92a23f3c08017a74be04e3e06f1d5 100644 (file)
--- a/signal.c
+++ b/signal.c
@@ -1,29 +1,22 @@
 /*
  * Copyright (C) 2004-2006 Andre Noll <maan@systemlinux.org>
  *
- *     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
- *     the Free Software Foundation; either version 2 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     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, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
  */
 /** \file signal.c signal handling functions */
 
+#include <signal.h>
+#include <sys/types.h>
+#include <dirent.h>
+
 #include "para.h"
-#include "fd.h"
 #include "error.h"
+#include "fd.h"
+
 static int signal_pipe[2];
 
 /**
- * initialize the paraslash signal subsystem
+ * Initialize the paraslash signal subsystem.
  *
  * This function creates a pipe, the signal pipe, to deliver pending
  * signals to the application (Bernstein's trick). It should be called
@@ -42,9 +35,11 @@ static int signal_pipe[2];
  */
 int para_signal_init(void)
 {
-       int ret = -E_SIGNAL_PIPE;
-       if (pipe(signal_pipe))
+       int ret;
+       if (pipe(signal_pipe) < 0) {
+               ret = -ERRNO_TO_PARA_ERROR(errno);
                goto err_out;
+       }
        ret = mark_fd_nonblock(signal_pipe[0]);
        if (ret < 0)
                goto err_out;
@@ -84,7 +79,7 @@ pid_t para_reap_child(void)
        if (pid <= 0) {
                if (pid < 0)
                        pid = -E_WAITPID;
-               return 0;
+               return pid;
        }
        if (WIFEXITED(status))
                PARA_DEBUG_LOG("child %i exited. Exit status: %i\n", pid,
@@ -129,7 +124,7 @@ int para_install_sighandler(int sig)
  * This should be called if the fd for the signal pipe is ready for reading.
  *
  * \return On success, the number of the received signal is returned. \p
- * -E_SIGNAL_READ is returned if a read error occured while reading the signal
+ * -E_SIGNAL_READ is returned if a read error occurred while reading the signal
  * pipe.  If the read was interrupted by another signal the function returns 0.
  */
 int para_next_signal(void)