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Re: [bug-gnulib] GNULIB wait-process module.


From: Derek Price
Subject: Re: [bug-gnulib] GNULIB wait-process module.
Date: Tue, 08 Mar 2005 14:52:23 -0500
User-agent: Mozilla Thunderbird 1.0 (Windows/20041206)

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Any further thoughts on this patch?

| 2005-03-04  Derek R. Price  <address@hidden>
|
| * lib/wait-process.h (wait_subprocess): Accept a new exitsignal
| argument. * lib/wait-process.c (wait_subprocess): Always set
| *exitsignal to 0 when present and set it to the offending signal
| when the child exits due to one.
|
|
| Regards,
|
| Derek
|
|
| ----------------------------------------------------------------------
|
|
| Index: lib/wait-process.c
| ===================================================================
|  RCS file: /cvsroot/gnulib/gnulib/lib/wait-process.c,v retrieving
| revision 1.3 diff -u -p -r1.3 wait-process.c --- lib/wait-process.c
| 20 Jan 2004 16:47:31 -0000    1.3 +++ lib/wait-process.c    4 Mar 2005
| 16:18:13 -0000 @@ -251,7 +251,7 @@ unregister_slave_subprocess
| (pid_t child If it didn't terminate correctly, exit if
| exit_on_error is true, otherwise return 127.  */ int
| -wait_subprocess (pid_t child, const char *progname,
| +wait_subprocess (pid_t child, const char *progname, int
| *exitsignal, bool ignore_sigpipe, bool null_stderr, bool
| slave_process, bool exit_on_error) { @@ -345,6 +345,7 @@
| wait_subprocess (pid_t child, const char WAIT_T status;
|
| *(int *) &status = 0; +  if (exitsignal) *exitsignal = 0; for (;;)
| { int result = waitpid (child, &status, 0); @@ -390,6 +391,7 @@
| wait_subprocess (pid_t child, const char if (WTERMSIG (status) ==
| SIGPIPE && ignore_sigpipe) return 0; # endif +      if (exitsignal)
| *exitsignal = WTERMSIG (status); if (exit_on_error || !null_stderr)
|  error (exit_on_error ? EXIT_FAILURE : 0, 0, _("%s subprocess got
| fatal signal %d"), Index: lib/wait-process.h
| ===================================================================
|  RCS file: /cvsroot/gnulib/gnulib/lib/wait-process.h,v retrieving
| revision 1.2 diff -u -p -r1.2 wait-process.h --- lib/wait-process.h
| 20 Jan 2004 16:47:31 -0000    1.2 +++ lib/wait-process.h    4 Mar 2005
| 16:18:13 -0000 @@ -36,11 +36,14 @@ 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 and set exitsignal if the
| child terminated because of a signal. 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 @@ -52,6 +55,7 @@
| extern "C" { - 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, +                int
| *exitsignal, bool ignore_sigpipe, bool null_stderr, bool
| slave_process, bool exit_on_error);


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