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Added anonymous pipe support

This commit is contained in:
Alexandre Julliard 1998-12-30 12:08:20 +00:00
parent aa0ebd0f1c
commit 942e6d778c
3 changed files with 95 additions and 1 deletions
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1
scheduler/Makefile.in
View File

@ -12,6 +12,7 @@ C_SRCS = \
handle.c \
k32obj.c \
mutex.c \
pipe.c \
process.c \
semaphore.c \
synchro.c \

3
scheduler/k32obj.c
View File

@ -26,6 +26,7 @@ extern const K32OBJ_OPS SNAPSHOT_Ops;
extern const K32OBJ_OPS SEMAPHORE_Ops;
extern const K32OBJ_OPS EVENT_Ops;
extern const K32OBJ_OPS MUTEX_Ops;
extern const K32OBJ_OPS PIPE_Ops;
static const K32OBJ_OPS K32OBJ_NullOps =
{
@ -54,7 +55,7 @@ const K32OBJ_OPS * const K32OBJ_Ops[K32OBJ_NBOBJECTS] =
&MEM_MAPPED_FILE_Ops, /* K32OBJ_MEM_MAPPED_FILE */
&K32OBJ_NullOps, /* K32OBJ_SERIAL */
&DEVICE_Ops, /* K32OBJ_DEVICE_IOCTL */
&K32OBJ_NullOps, /* K32OBJ_PIPE */
&PIPE_Ops, /* K32OBJ_PIPE */
&K32OBJ_NullOps, /* K32OBJ_MAILSLOT */
&K32OBJ_NullOps, /* K32OBJ_TOOLHELP_SNAPSHOT */
&K32OBJ_NullOps /* K32OBJ_SOCKET */

92
scheduler/pipe.c Normal file
View File

@ -0,0 +1,92 @@
/*
* 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 =
{
NULL, /* signaled */
NULL, /* satisfied */
NULL, /* add_wait */
NULL, /* remove_wait */
NULL, /* read */
NULL, /* write */
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 );
}