X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fwait-process.h;h=569845858f725b971ac8ed6bda5295d867fbcea3;hb=8f3aa1fee051bc5091d5f9b207609c03cf023894;hp=f1f777674043be607fcd961521740ff81e1c06a0;hpb=6d8d4e520be656b646a6f5cf7ebebfc31c178022;p=gnulib.git diff --git a/lib/wait-process.h b/lib/wait-process.h index f1f777674..569845858 100644 --- a/lib/wait-process.h +++ b/lib/wait-process.h @@ -1,11 +1,11 @@ /* Waiting for a subprocess to finish. - Copyright (C) 2001-2003, 2006 Free Software Foundation, Inc. + Copyright (C) 2001-2003, 2006, 2008-2010 Free Software Foundation, Inc. Written by Bruno Haible , 2001. - This program is free software; you can redistribute it and/or modify + 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, or (at your option) - any later version. + the Free Software Foundation; either version 3 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 @@ -13,8 +13,7 @@ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + along with this program. If not, see . */ #ifndef _WAIT_PROCESS_H #define _WAIT_PROCESS_H @@ -34,14 +33,11 @@ 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 and set exitsignal if the child terminated because of a signal. + 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. - - exitsignal is an optional pointer to an int to hold the signal number of - any signal that caused the child to exit. It will be set to zero if this - function exits with an error not caused by the child catching a signal. - 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 @@ -51,11 +47,17 @@ extern "C" { - 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. */ + with an error status. + - If termsigp is not NULL: *termsig will be set to the signal that + terminated the subprocess (if supported by the platform: not on native + Windows platforms), otherwise 0, and the error message about the signal + that terminated the subprocess will be omitted. + Prerequisites: The signal handler for SIGCHLD should not be set to SIG_IGN, + otherwise this function will not work. */ extern int wait_subprocess (pid_t child, const char *progname, - int *exitsignal, - bool ignore_sigpipe, bool null_stderr, - bool slave_process, bool exit_on_error); + bool ignore_sigpipe, bool null_stderr, + bool slave_process, bool exit_on_error, + int *termsigp); /* Register a subprocess as being a slave process. This means that the subprocess will be terminated when its creator receives a catchable fatal