87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
|
/*
|
||
|
|
* Win32 pipes
|
||
|
|
*
|
||
|
|
* Copyright 1998 Alexandre Julliard
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include "windows.h"
|
||
|
|
#include "winerror.h"
|
||
|
|
#include "k32obj.h"
|
||
|
|
#include "process.h"
|
||
|
|
#include "thread.h"
|
||
|
|
#include "heap.h"
|
||
|
|
#include "server/request.h"
|
||
|
|
#include "server.h"
|
||
|
|
|
||
|
|
typedef struct _PIPE
|
||
|
|
{
|
||
|
|
K32OBJ header;
|
||
|
|
} PIPE;
|
||
|
|
|
||
|
|
static void PIPE_Destroy( K32OBJ *obj );
|
||
|
|
|
||
|
|
const K32OBJ_OPS PIPE_Ops =
|
||
|
|
{
|
||
|
|
PIPE_Destroy /* destroy */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
* CreatePipe (KERNEL32.170)
|
||
|
|
*/
|
||
|
|
BOOL32 WINAPI CreatePipe( PHANDLE hReadPipe, PHANDLE hWritePipe,
|
||
|
|
LPSECURITY_ATTRIBUTES sa, DWORD size )
|
||
|
|
{
|
||
|
|
struct create_pipe_request req;
|
||
|
|
struct create_pipe_reply reply;
|
||
|
|
PIPE *read_pipe, *write_pipe;
|
||
|
|
int len;
|
||
|
|
|
||
|
|
req.inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
|
||
|
|
CLIENT_SendRequest( REQ_CREATE_PIPE, -1, 1, &req, sizeof(req) );
|
||
|
|
if (CLIENT_WaitReply( &len, NULL, 1, &reply, sizeof(reply) ) != ERROR_SUCCESS)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
SYSTEM_LOCK();
|
||
|
|
if (!(read_pipe = (PIPE *)K32OBJ_Create( K32OBJ_PIPE, sizeof(*read_pipe),
|
||
|
|
NULL, reply.handle_read,
|
||
|
|
STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|GENERIC_READ,
|
||
|
|
sa, hReadPipe )))
|
||
|
|
{
|
||
|
|
CLIENT_CloseHandle( reply.handle_write );
|
||
|
|
/* handle_read already closed by K32OBJ_Create */
|
||
|
|
SYSTEM_UNLOCK();
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
K32OBJ_DecCount( &read_pipe->header );
|
||
|
|
if (!(write_pipe = (PIPE *)K32OBJ_Create( K32OBJ_PIPE, sizeof(*write_pipe),
|
||
|
|
NULL, reply.handle_write,
|
||
|
|
STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|GENERIC_WRITE,
|
||
|
|
sa, hWritePipe )))
|
||
|
|
{
|
||
|
|
CloseHandle( *hReadPipe );
|
||
|
|
*hReadPipe = INVALID_HANDLE_VALUE32;
|
||
|
|
SYSTEM_UNLOCK();
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
/* everything OK */
|
||
|
|
K32OBJ_DecCount( &write_pipe->header );
|
||
|
|
SetLastError(0); /* FIXME */
|
||
|
|
SYSTEM_UNLOCK();
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
* PIPE_Destroy
|
||
|
|
*/
|
||
|
|
static void PIPE_Destroy( K32OBJ *obj )
|
||
|
|
{
|
||
|
|
PIPE *pipe = (PIPE *)obj;
|
||
|
|
assert( obj->type == K32OBJ_PIPE );
|
||
|
|
obj->type = K32OBJ_UNKNOWN;
|
||
|
|
HeapFree( SystemHeap, 0, pipe );
|
||
|
|
}
|
||
|
|
|