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kernel32: Implement IO completion functions on top of the NT IoCompletion API.

This commit is contained in:
Andrey Turkin 2007-06-02 02:32:07 +04:00 committed by Alexandre Julliard
parent dd49801752
commit 6310819afb
1 changed files with 68 additions and 9 deletions
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77
dlls/kernel32/sync.c
View File

@ -1811,12 +1811,45 @@ BOOL WINAPI SetMailslotInfo( HANDLE hMailslot, DWORD dwReadTimeout)
HANDLE WINAPI CreateIoCompletionPort(HANDLE hFileHandle, HANDLE hExistingCompletionPort,
ULONG_PTR CompletionKey, DWORD dwNumberOfConcurrentThreads)
{
FIXME("(%p, %p, %08lx, %08x): stub.\n",
hFileHandle, hExistingCompletionPort, CompletionKey, dwNumberOfConcurrentThreads);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return NULL;
}
NTSTATUS status;
HANDLE ret = 0;
TRACE("(%p, %p, %08lx, %08x)\n",
hFileHandle, hExistingCompletionPort, CompletionKey, dwNumberOfConcurrentThreads);
if (hExistingCompletionPort && hFileHandle == INVALID_HANDLE_VALUE)
{
SetLastError( ERROR_INVALID_PARAMETER);
return NULL;
}
if (hExistingCompletionPort)
ret = hExistingCompletionPort;
else
{
status = NtCreateIoCompletion( &ret, IO_COMPLETION_ALL_ACCESS, NULL, dwNumberOfConcurrentThreads );
if (status != STATUS_SUCCESS) goto fail;
}
if (hFileHandle != INVALID_HANDLE_VALUE)
{
FILE_COMPLETION_INFORMATION info;
IO_STATUS_BLOCK iosb;
info.CompletionPort = ret;
info.CompletionKey = CompletionKey;
status = NtSetInformationFile( hFileHandle, &iosb, &info, sizeof(info), FileCompletionInformation );
if (status != STATUS_SUCCESS) goto fail;
}
return ret;
fail:
if (ret && !hExistingCompletionPort)
CloseHandle( ret );
SetLastError( RtlNtStatusToDosError(status) );
return 0;
}
/******************************************************************************
* GetQueuedCompletionStatus (KERNEL32.@)
@ -1825,17 +1858,43 @@ BOOL WINAPI GetQueuedCompletionStatus( HANDLE CompletionPort, LPDWORD lpNumberOf
PULONG_PTR pCompletionKey, LPOVERLAPPED *lpOverlapped,
DWORD dwMilliseconds )
{
FIXME("(%p,%p,%p,%p,%d), stub!\n",
NTSTATUS status;
IO_STATUS_BLOCK iosb;
LARGE_INTEGER wait_time;
TRACE("(%p,%p,%p,%p,%d)\n",
CompletionPort,lpNumberOfBytesTransferred,pCompletionKey,lpOverlapped,dwMilliseconds);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
*lpOverlapped = NULL;
status = NtRemoveIoCompletion( CompletionPort, pCompletionKey, (PULONG_PTR)lpOverlapped,
&iosb, get_nt_timeout( &wait_time, dwMilliseconds ) );
if (status == STATUS_SUCCESS)
{
*lpNumberOfBytesTransferred = iosb.Information;
return TRUE;
}
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
/******************************************************************************
* PostQueuedCompletionStatus (KERNEL32.@)
*/
BOOL WINAPI PostQueuedCompletionStatus( HANDLE CompletionPort, DWORD dwNumberOfBytes,
ULONG_PTR dwCompletionKey, LPOVERLAPPED lpOverlapped)
{
FIXME("%p %d %08lx %p\n", CompletionPort, dwNumberOfBytes, dwCompletionKey, lpOverlapped );
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
NTSTATUS status;
TRACE("%p %d %08lx %p\n", CompletionPort, dwNumberOfBytes, dwCompletionKey, lpOverlapped );
status = NtSetIoCompletion( CompletionPort, dwCompletionKey, (ULONG_PTR)lpOverlapped,
STATUS_SUCCESS, dwNumberOfBytes );
if (status == STATUS_SUCCESS) return TRUE;
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}