sysnt.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 159 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  Windows NT specific functions for builder
*
****************************************************************************/

#include <sys/types.h>
#include <direct.h>
#include <string.h>
#include <ctype.h>
#include <dos.h>
#include <process.h>
#include <fcntl.h>
#include <unistd.h>
#include "builder.h"

#include <windows.h>

char    *CmdProc;
#define TITLESIZE 256
char    Title[TITLESIZE];

void SysInitTitle( int argc, char *argv[] )
{
    int i;

    strcpy( Title, "Builder " );
    for( i = 1; i < argc; i++ ) {
        if( strlen( Title ) + strlen( argv[i] ) > TITLESIZE - 3 )
	    break;
        strcat( Title, argv[i] );
        strcat( Title, " " );
    }
    strcat( Title, "[" );
    getcwd( Title + strlen( Title ), TITLESIZE - strlen( Title ) - 2 );
    strcat( Title, "]" );
    SetConsoleTitle( Title );
}

void SysSetTitle( char *title )
{
    char        *end;

    end = strchr( Title, ']' );
    *( end + 1 ) = '\0';

    strcat( Title, " (" );
    getcwd( Title + strlen( Title ), TITLESIZE - strlen( Title ) - 2 );
    strcat( Title, ")" );
    SetConsoleTitle( Title );
}

static  PROCESS_INFORMATION pinfo;
static  STARTUPINFO         sinfo;

// BartoszP - 18.08.2006
// CreateProcessA does not return process id as result
// but fills pinfo on success
// return value
//    == 0 means that child process was not created
//    != 0 means success
// save pinfo for closing child

int RunChildProcessCmdl( const char *cmdl )
{

    memset( &sinfo, 0, sizeof( sinfo ) );
    sinfo.cb = sizeof( sinfo );
    memset( &pinfo, 0, sizeof( pinfo ) );

    return CreateProcessA( NULL, ( LPSTR ) cmdl, NULL, NULL, TRUE, 0, NULL, NULL, &sinfo, &pinfo );
}

void SysInit( int argc, char *argv[] )
{
    SysInitTitle( argc, argv );
    CmdProc = getenv( "ComSpec" );
    if( CmdProc == NULL ) {
        Fatal( "Can not find command processor" );
    }
}

unsigned SysRunCommandPipe( const char *cmd, int *readpipe )
{
    int                 rc;
    HANDLE              pipe_input;
    HANDLE              pipe_output;
    HANDLE              pipe_input_dup;
    SECURITY_ATTRIBUTES sa;

    sa.nLength = sizeof( sa );
    sa.lpSecurityDescriptor = NULL;
    sa.bInheritHandle = TRUE;
    if( !CreatePipe( &pipe_input, &pipe_output, &sa, 0 ) ) {
        return( GetLastError() );
    }
    SetStdHandle( STD_OUTPUT_HANDLE, pipe_output );
    SetStdHandle( STD_ERROR_HANDLE, pipe_output );
    DuplicateHandle( GetCurrentProcess(), pipe_input,
                GetCurrentProcess(), &pipe_input_dup, 0, FALSE,
                DUPLICATE_SAME_ACCESS );
    CloseHandle( pipe_input );
    rc = RunChildProcessCmdl( cmd );
    CloseHandle( pipe_output );
    *readpipe = _hdopen( ( int ) pipe_input_dup, O_RDONLY );
    return rc;
}

unsigned SysChdir( char *dir )
{
    unsigned    retval;

    retval = SysDosChdir( dir );

    SysSetTitle( Title );

    return( retval );
}

int wait( int *status )
{
    // BartoszP - 18.08.2006
    // *status != 0 means that process was created successfully
    if( *status ) {
        // Wait until child process exits.
        WaitForSingleObject( pinfo.hProcess, INFINITE );
        // Close process and thread handles. 
        CloseHandle( pinfo.hProcess );
        CloseHandle( pinfo.hThread );
        // set *status to 0 to make pmake happy
        *status = 0;
    } // else - there was no child process
    return 0;
}