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pipe.c
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pipe.c
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/*
This file is part of PlibC.
(C) 2005 Nils Durner (and other contributing authors)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* @file src/pipe.c
* @brief pipe()
*/
#include "plibc_private.h"
/**
* Create a pipe for reading and writing
*/
int _win_pipe(int *phandles)
{
/* To get non-blocking pipes we could use CreateNamedPipe here. But it isn't
implemented under Win9x. */
if (!CreatePipe((HANDLE *) &phandles[0],(HANDLE *) &phandles[1], NULL, 0))
{
SetErrnoFromWinError(GetLastError());
return -1;
}
else
{
errno = 0;
__win_SetHandleType((DWORD) phandles[0], PIPE_HANDLE);
__win_SetHandleType((DWORD) phandles[1], PIPE_HANDLE);
return 0;
}
}
/**
* Make a FIFO special file
* @todo use mode
*/
int _win_mkfifo(const char *path, mode_t mode)
{
HANDLE ret;
SECURITY_ATTRIBUTES sec;
ZeroMemory(&sec, sizeof(sec));
sec.nLength = sizeof(sec);
sec.bInheritHandle = TRUE;
ret = CreateNamedPipe(path, PIPE_ACCESS_DUPLEX |
FILE_FLAG_OVERLAPPED, PIPE_TYPE_BYTE, 1, 0, 0, 0, &sec);
if (ret == INVALID_HANDLE_VALUE)
{
SetErrnoFromWinError(GetLastError());
return -1;
}
else
{
errno = 0;
__win_SetHandleType((DWORD) ret, PIPE_HANDLE);
return 0;
}
}
/* end of pipe.c */