Sweden-Number/dlls/ntdll/sync.c

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/*
* Process synchronisation
*/
1999-06-12 16:55:11 +02:00
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "debugtools.h"
#include "winerror.h"
#include "wine/unicode.h"
#include "server.h"
#include "ntddk.h"
#include "ntdll_misc.h"
DEFAULT_DEBUG_CHANNEL(ntdll);
/* copy a key name into the request buffer */
static inline NTSTATUS copy_nameU( LPWSTR Dest, const OBJECT_ATTRIBUTES *attr )
{
if (attr && attr->ObjectName && attr->ObjectName->Buffer)
{
if ((attr->ObjectName->Length) > MAX_PATH) return STATUS_BUFFER_OVERFLOW;
strcpyW( Dest, attr->ObjectName->Buffer );
}
else Dest[0] = 0;
return STATUS_SUCCESS;
}
/*
* Semaphores
*/
/******************************************************************************
* NtCreateSemaphore
*/
NTSTATUS WINAPI NtCreateSemaphore(
OUT PHANDLE SemaphoreHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL,
IN ULONG InitialCount,
IN ULONG MaximumCount)
{
struct create_semaphore_request *req = get_req_buffer();
NTSTATUS ret;
if ((MaximumCount <= 0) || (InitialCount < 0) || (InitialCount > MaximumCount))
return STATUS_INVALID_PARAMETER;
*SemaphoreHandle = 0;
req->initial = InitialCount;
req->max = MaximumCount;
req->inherit = ObjectAttributes && (ObjectAttributes->Attributes & OBJ_INHERIT);
if (!(ret = copy_nameU( req->name, ObjectAttributes )) &&
!(ret = server_call_noerr( REQ_CREATE_SEMAPHORE ))) *SemaphoreHandle = req->handle;
return ret;
}
/******************************************************************************
* NtOpenSemaphore
*/
NTSTATUS WINAPI NtOpenSemaphore(
OUT PHANDLE SemaphoreHandle,
IN ACCESS_MASK DesiredAcces,
IN POBJECT_ATTRIBUTES ObjectAttributes)
{
struct open_semaphore_request *req = get_req_buffer();
NTSTATUS ret;
*SemaphoreHandle = 0;
req->access = DesiredAcces;
req->inherit = ObjectAttributes && (ObjectAttributes->Attributes & OBJ_INHERIT);
if (!(ret = copy_nameU( req->name, ObjectAttributes )) &&
!(ret = server_call_noerr( REQ_OPEN_SEMAPHORE ))) *SemaphoreHandle = req->handle;
return ret;
}
/******************************************************************************
* NtQuerySemaphore
*/
NTSTATUS WINAPI NtQuerySemaphore(
HANDLE SemaphoreHandle,
PVOID SemaphoreInformationClass,
OUT PVOID SemaphoreInformation,
ULONG Length,
PULONG ReturnLength)
{
FIXME("(0x%08x,%p,%p,0x%08lx,%p) stub!\n",
SemaphoreHandle, SemaphoreInformationClass, SemaphoreInformation, Length, ReturnLength);
return STATUS_SUCCESS;
}
/******************************************************************************
* NtReleaseSemaphore
*/
NTSTATUS WINAPI NtReleaseSemaphore(
IN HANDLE SemaphoreHandle,
IN ULONG ReleaseCount,
IN PULONG PreviousCount)
{
struct release_semaphore_request *req = get_req_buffer();
NTSTATUS ret;
if (ReleaseCount < 0) return STATUS_INVALID_PARAMETER;
req->handle = SemaphoreHandle;
req->count = ReleaseCount;
if (!(ret = server_call_noerr( REQ_RELEASE_SEMAPHORE )))
{
if (PreviousCount) *PreviousCount = req->prev_count;
}
return ret;
}
/*
* Events
*/
/**************************************************************************
* NtCreateEvent
*/
NTSTATUS WINAPI NtCreateEvent(
OUT PHANDLE EventHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes,
IN BOOLEAN ManualReset,
IN BOOLEAN InitialState)
{
struct create_event_request *req = get_req_buffer();
NTSTATUS ret;
*EventHandle = 0;
req->manual_reset = ManualReset;
req->initial_state = InitialState;
req->inherit = ObjectAttributes && (ObjectAttributes->Attributes & OBJ_INHERIT);
if (!(ret = copy_nameU( req->name, ObjectAttributes )) &&
!(ret = server_call_noerr( REQ_CREATE_EVENT ))) *EventHandle = req->handle;
return ret;
}
/******************************************************************************
* NtOpenEvent
*/
NTSTATUS WINAPI NtOpenEvent(
OUT PHANDLE EventHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes)
{
struct open_event_request *req = get_req_buffer();
NTSTATUS ret;
*EventHandle = 0;
req->access = DesiredAccess;
req->inherit = ObjectAttributes && (ObjectAttributes->Attributes & OBJ_INHERIT);
if (!(ret = copy_nameU( req->name, ObjectAttributes )) &&
!(ret = server_call_noerr( REQ_OPEN_EVENT ))) *EventHandle = req->handle;
return ret;
}
/******************************************************************************
* NtSetEvent
*/
NTSTATUS WINAPI NtSetEvent(
IN HANDLE EventHandle,
PULONG NumberOfThreadsReleased)
{
struct event_op_request *req = get_req_buffer();
FIXME("(0x%08x,%p)\n", EventHandle, NumberOfThreadsReleased);
req->handle = EventHandle;
req->op = SET_EVENT;
return server_call_noerr( REQ_EVENT_OP );
}
/******************************************************************************
* NtResetEvent
*/
NTSTATUS WINAPI NtResetEvent(
IN HANDLE EventHandle,
PULONG NumberOfThreadsReleased)
{
struct event_op_request *req = get_req_buffer();
FIXME("(0x%08x,%p)\n", EventHandle, NumberOfThreadsReleased);
req->handle = EventHandle;
req->op = RESET_EVENT;
return server_call_noerr( REQ_EVENT_OP );
}
/******************************************************************************
* NtClearEvent
*
* FIXME
* same as NtResetEvent ???
*/
NTSTATUS WINAPI NtClearEvent (
IN HANDLE EventHandle)
{
return NtResetEvent( EventHandle, NULL );
}
/******************************************************************************
* NtPulseEvent
*
* FIXME
* PulseCount
*/
NTSTATUS WINAPI NtPulseEvent(
IN HANDLE EventHandle,
IN PULONG PulseCount)
{
struct event_op_request *req = get_req_buffer();
FIXME("(0x%08x,%p)\n", EventHandle, PulseCount);
req->handle = EventHandle;
req->op = PULSE_EVENT;
return server_call_noerr( REQ_EVENT_OP );
}
/******************************************************************************
* NtQueryEvent
*/
NTSTATUS WINAPI NtQueryEvent (
IN HANDLE EventHandle,
IN UINT EventInformationClass,
OUT PVOID EventInformation,
IN ULONG EventInformationLength,
OUT PULONG ReturnLength)
{
FIXME("(0x%08x)\n", EventHandle);
return STATUS_SUCCESS;
}