6d0978319e
2007/11/11 23:05:48 vq 1.5.2.1: #i83540# Enable parallel builds with native W32 dmake. (First MinGW only.)
188 lines
4.4 KiB
C
188 lines
4.4 KiB
C
/* RCS $Id: runargv.c,v 1.6 2008-03-05 18:35:53 kz Exp $
|
|
--
|
|
-- SYNOPSIS
|
|
-- Run a sub process.
|
|
--
|
|
-- DESCRIPTION
|
|
-- Use spawn to run a subprocess.
|
|
--
|
|
-- AUTHOR
|
|
-- Dennis Vadura, dvadura@dmake.wticorp.com
|
|
--
|
|
-- WWW
|
|
-- http://dmake.wticorp.com/
|
|
--
|
|
-- COPYRIGHT
|
|
-- Copyright (c) 1996,1997 by WTI Corp. All rights reserved.
|
|
--
|
|
-- This program is NOT free software; you can redistribute it and/or
|
|
-- modify it under the terms of the Software License Agreement Provided
|
|
-- in the file <distribution-root>/readme/license.txt.
|
|
--
|
|
-- LOG
|
|
-- Use cvs log to obtain detailed change logs.
|
|
*/
|
|
|
|
#if defined(USE_CREATEPROCESS)
|
|
/* MSVC6.0 and newer and MinGW use the parallel build enabled runargv(). */
|
|
Force a compile-time blowup.
|
|
This file should not be used, use unix/runargv.c instead.
|
|
#endif
|
|
|
|
#include <process.h>
|
|
#include <errno.h>
|
|
#include "extern.h"
|
|
#include "sysintf.h"
|
|
|
|
static int _abort_flg = FALSE;
|
|
static void _add_child ANSI((CELLPTR, int));
|
|
static void _finished_child ANSI((int));
|
|
|
|
PUBLIC int
|
|
runargv(target, group, last, cmnd_attr, cmd)
|
|
CELLPTR target;
|
|
int group;
|
|
int last;
|
|
t_attr cmnd_attr; /* Attributes for current cmnd. */
|
|
char **cmd; /* Simulate a reference to *cmd. */
|
|
{
|
|
int ignore = (cmnd_attr & A_IGNORE)!= 0; /* Ignore errors ('-'). */
|
|
int shell = (cmnd_attr & A_SHELL) != 0; /* Use shell ('+'). */
|
|
int mute = (cmnd_attr & A_MUTE) != 0; /* Mute output ('@@'). */
|
|
#if ! defined(_MSC_VER)
|
|
#if defined(__BORLANDC__) && __BORLANDC__ >= 0x500
|
|
extern char ** _RTLENTRY _EXPDATA environ;
|
|
#else
|
|
extern char **environ;
|
|
#endif
|
|
#endif
|
|
int status;
|
|
char **argv;
|
|
int old_stdout = -1; /* For redirecting shell escapes */
|
|
int old_stderr = -1; /* and silencing @@-recipes */
|
|
char *tcmd = *cmd; /* For saver/easier string arithmetic on *cmd. */
|
|
|
|
if( Measure & M_RECIPE )
|
|
Do_profile_output( "s", M_RECIPE, target );
|
|
|
|
_add_child(target, ignore);
|
|
|
|
/* redirect output for _exec_shell / @@-recipes. */
|
|
if( Is_exec_shell ) {
|
|
/* Add error checking? */
|
|
old_stdout = dup(1);
|
|
dup2( fileno(stdout_redir), 1 );
|
|
}
|
|
if( mute ) {
|
|
old_stderr = dup(2);
|
|
dup2( zerofd, 2 );
|
|
|
|
if( !Is_exec_shell ) {
|
|
old_stdout = dup(1);
|
|
dup2( zerofd, 1 );
|
|
}
|
|
}
|
|
|
|
/* Return immediately for empty line or noop command. */
|
|
if ( !*tcmd || /* empty line */
|
|
( strncmp(tcmd, "noop", 4) == 0 && /* noop command */
|
|
(iswhite(tcmd[4]) || tcmd[4] == '\0')) ) {
|
|
status = 0;
|
|
}
|
|
else if( !shell && /* internal echo only if not in shell */
|
|
strncmp(tcmd, "echo", 4) == 0 &&
|
|
(iswhite(tcmd[4]) || tcmd[4] == '\0') ) {
|
|
int nl = 1;
|
|
|
|
tcmd = tcmd + 4;
|
|
|
|
while( iswhite(*tcmd) ) ++tcmd;
|
|
if ( strncmp(tcmd,"-n",2 ) == 0) {
|
|
nl = 0;
|
|
tcmd = tcmd+2;
|
|
while( iswhite(*tcmd) ) ++tcmd;
|
|
}
|
|
printf("%s%s", tcmd, nl ? "\n" : "");
|
|
fflush(stdout);
|
|
status = 0;
|
|
}
|
|
else {
|
|
argv = Pack_argv( group, shell, cmd );
|
|
Packed_shell = shell||group;
|
|
|
|
/* The last two arguments would need (const char *const *) casts
|
|
* to silence the warning when building with MinGW. */
|
|
status = spawnvpe(P_WAIT, *argv, argv, environ);
|
|
}
|
|
|
|
/* Restore stdout/stderr if needed. */
|
|
if( old_stdout != -1 ) {
|
|
dup2(old_stdout, 1);
|
|
if( old_stderr != -1 )
|
|
dup2(old_stderr, 2);
|
|
}
|
|
|
|
if( status == -1 ) {
|
|
/* spawnvpe failed */
|
|
fprintf(stderr, "%s: Error executing '%s': %s",
|
|
Pname, argv[0], strerror(errno) );
|
|
if( ignore||Continue ) {
|
|
fprintf(stderr, " (Ignored)" );
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
if( Measure & M_RECIPE )
|
|
Do_profile_output( "e", M_RECIPE, target );
|
|
|
|
_finished_child(status);
|
|
if( last && !Doing_bang ) Update_time_stamp( target );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
Clean_up_processes()
|
|
{
|
|
_abort_flg = TRUE;
|
|
_finished_child(-1);
|
|
}
|
|
|
|
|
|
PUBLIC int
|
|
Wait_for_child( abort_flg, pid )
|
|
int abort_flg;
|
|
int pid;
|
|
{
|
|
/* There is currently no parallel processing for this OS, always
|
|
* return -1 indicating that there was nothing to wait for. */
|
|
return(-1);
|
|
}
|
|
|
|
|
|
static int _valid = -1;
|
|
static CELLPTR _tg;
|
|
static int _ignore;
|
|
|
|
static void
|
|
_add_child( target, ignore )
|
|
CELLPTR target;
|
|
int ignore;
|
|
{
|
|
_tg = target;
|
|
_ignore = ignore;
|
|
_valid = 0;
|
|
|
|
Current_target = NIL(CELL);
|
|
}
|
|
|
|
|
|
static void
|
|
_finished_child(status)
|
|
int status;
|
|
{
|
|
if( _valid == -1 ) return;
|
|
_valid = -1;
|
|
Handle_result( status, _ignore, _abort_flg, _tg );
|
|
}
|