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https://github.com/reactos/wine.git
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ntdll: Don't bother with async I/O on regular files.
This commit is contained in:
Alexandre Julliard
parent
83ce958793
commit
a902632483
@ -286,7 +286,6 @@ typedef struct async_fileio
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void* apc_user;
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char* buffer;
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unsigned int count;
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off_t offset;
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int queue_apc_on_error;
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BOOL avail_mode;
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HANDLE event;
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@ -371,6 +370,7 @@ NTSTATUS FILE_GetNtStatus(void)
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case ENOTTY:
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case EOPNOTSUPP:return STATUS_NOT_SUPPORTED;
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case ECONNRESET:return STATUS_PIPE_DISCONNECTED;
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case EFAULT: return STATUS_ACCESS_VIOLATION;
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case ENOEXEC: /* ?? */
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case ESPIPE: /* ?? */
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case EEXIST: /* ?? */
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@ -402,16 +402,7 @@ static void WINAPI FILE_AsyncReadService(void *user, PIO_STATUS_BLOCK iosb, ULON
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fileio_terminate(fileio, iosb);
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break;
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}
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if ( fileio->avail_mode )
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result = read(fd, &fileio->buffer[already], fileio->count - already);
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else
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{
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result = pread(fd, &fileio->buffer[already],
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fileio->count - already,
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fileio->offset + already);
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if ((result < 0) && (errno == ESPIPE))
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result = read(fd, &fileio->buffer[already], fileio->count - already);
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}
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if (needs_close) close( fd );
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if (result < 0)
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@ -487,7 +478,8 @@ NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
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PIO_STATUS_BLOCK io_status, void* buffer, ULONG length,
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PLARGE_INTEGER offset, PULONG key)
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{
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int unix_handle, needs_close, flags;
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int result, unix_handle, needs_close, flags;
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enum server_fd_type type;
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TRACE("(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p),partial stub!\n",
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hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
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@ -496,9 +488,45 @@ NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
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io_status->Information = 0;
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io_status->u.Status = server_get_unix_fd( hFile, FILE_READ_DATA, &unix_handle,
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&needs_close, NULL, &flags );
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&needs_close, &type, &flags );
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if (io_status->u.Status) return io_status->u.Status;
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if (type == FD_TYPE_FILE && offset)
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{
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/* async I/O doesn't make sense on regular files */
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if (flags & FD_FLAG_OVERLAPPED)
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{
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while ((result = pread( unix_handle, buffer, length, offset->QuadPart )) == -1)
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{
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if (errno == EINTR) continue;
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if (errno == EAGAIN || errno == ESPIPE)
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{
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io_status->u.Status = STATUS_PENDING;
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break;
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}
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result = 0;
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io_status->u.Status = FILE_GetNtStatus();
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goto done;
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}
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if (result >= 0)
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{
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io_status->Information = result;
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io_status->u.Status = result ? STATUS_SUCCESS : STATUS_END_OF_FILE;
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if (hEvent) NtSetEvent( hEvent, NULL );
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if (apc && !io_status->u.Status) apc( apc_user, io_status, io_status->Information );
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goto done;
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}
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}
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else
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{
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if (lseek( unix_handle, offset->QuadPart, SEEK_SET ) == (off_t)-1)
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{
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io_status->u.Status = FILE_GetNtStatus();
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goto done;
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}
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}
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}
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if (flags & FD_FLAG_RECV_SHUTDOWN)
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{
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if (needs_close) close( unix_handle );
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@ -535,14 +563,6 @@ NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
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}
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fileio->handle = hFile;
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fileio->count = length;
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if ( offset == NULL )
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fileio->offset = 0;
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else
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{
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fileio->offset = offset->QuadPart;
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if (offset->u.HighPart && fileio->offset == offset->u.LowPart)
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FIXME("High part of offset is lost\n");
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}
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fileio->apc = apc;
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fileio->apc_user = apc_user;
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fileio->buffer = buffer;
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@ -589,27 +609,15 @@ NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
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return io_status->u.Status;
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}
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if (offset)
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{
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FILE_POSITION_INFORMATION fpi;
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fpi.CurrentByteOffset = *offset;
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io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
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FilePositionInformation);
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if (io_status->u.Status) goto done;
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}
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/* code for synchronous reads */
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while ((io_status->Information = read( unix_handle, buffer, length )) == -1)
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while ((result = read( unix_handle, buffer, length )) == -1)
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{
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if ((errno == EAGAIN) || (errno == EINTR)) continue;
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if (errno == EFAULT)
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{
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io_status->Information = 0;
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io_status->u.Status = STATUS_ACCESS_VIOLATION;
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}
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else io_status->u.Status = FILE_GetNtStatus();
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io_status->u.Status = FILE_GetNtStatus();
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result = 0;
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break;
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}
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io_status->Information = result;
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if (io_status->u.Status == STATUS_SUCCESS && io_status->Information == 0)
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{
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struct stat st;
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@ -645,15 +653,7 @@ static void WINAPI FILE_AsyncWriteService(void *ovp, IO_STATUS_BLOCK *iosb, ULON
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fileio_terminate(fileio, iosb);
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break;
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}
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if ( fileio->avail_mode )
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result = write(fd, &fileio->buffer[already], fileio->count - already);
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else
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{
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result = pwrite(fd, &fileio->buffer[already],
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fileio->count - already, fileio->offset + already);
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if ((result < 0) && (errno == ESPIPE))
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result = write(fd, &fileio->buffer[already], fileio->count - already);
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}
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if (needs_close) close( fd );
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if (result < 0)
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@ -708,7 +708,8 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
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const void* buffer, ULONG length,
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PLARGE_INTEGER offset, PULONG key)
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{
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int unix_handle, needs_close, flags;
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int result, unix_handle, needs_close, flags;
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enum server_fd_type type;
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TRACE("(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p)!\n",
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hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
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@ -717,9 +718,46 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
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io_status->Information = 0;
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io_status->u.Status = server_get_unix_fd( hFile, FILE_WRITE_DATA, &unix_handle,
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&needs_close, NULL, &flags );
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&needs_close, &type, &flags );
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if (io_status->u.Status) return io_status->u.Status;
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if (type == FD_TYPE_FILE && offset)
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{
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if (flags & FD_FLAG_OVERLAPPED)
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{
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/* async I/O doesn't make sense on regular files */
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while ((result = pwrite( unix_handle, buffer, length, offset->QuadPart )) == -1)
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{
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if (errno == EINTR) continue;
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if (errno == EAGAIN || errno == ESPIPE)
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{
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io_status->u.Status = STATUS_PENDING;
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break;
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}
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result = 0;
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if (errno == EFAULT) io_status->u.Status = STATUS_INVALID_USER_BUFFER;
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else io_status->u.Status = FILE_GetNtStatus();
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goto done;
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}
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if (result >= 0)
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{
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io_status->Information = result;
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io_status->u.Status = STATUS_SUCCESS;
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if (hEvent) NtSetEvent( hEvent, NULL );
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if (apc) apc( apc_user, io_status, io_status->Information );
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goto done;
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}
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}
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else
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{
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if (lseek( unix_handle, offset->QuadPart, SEEK_SET ) == (off_t)-1)
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{
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io_status->u.Status = FILE_GetNtStatus();
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goto done;
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}
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}
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}
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if (flags & FD_FLAG_SEND_SHUTDOWN)
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{
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if (needs_close) close( unix_handle );
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@ -756,16 +794,6 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
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}
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fileio->handle = hFile;
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fileio->count = length;
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if (offset)
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{
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fileio->offset = offset->QuadPart;
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if (offset->u.HighPart && fileio->offset == offset->u.LowPart)
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FIXME("High part of offset is lost\n");
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}
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else
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{
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fileio->offset = 0;
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}
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fileio->apc = apc;
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fileio->apc_user = apc_user;
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fileio->buffer = (void*)buffer;
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@ -812,29 +840,16 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
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return io_status->u.Status;
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}
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if (offset)
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{
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FILE_POSITION_INFORMATION fpi;
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fpi.CurrentByteOffset = *offset;
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io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
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FilePositionInformation);
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if (io_status->u.Status) goto done;
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}
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/* synchronous file write */
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while ((io_status->Information = write( unix_handle, buffer, length )) == -1)
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while ((result = write( unix_handle, buffer, length )) == -1)
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{
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if ((errno == EAGAIN) || (errno == EINTR)) continue;
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if (errno == EFAULT)
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{
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io_status->Information = 0;
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io_status->u.Status = STATUS_INVALID_USER_BUFFER;
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}
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else if (errno == ENOSPC) io_status->u.Status = STATUS_DISK_FULL;
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result = 0;
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if (errno == EFAULT) io_status->u.Status = STATUS_INVALID_USER_BUFFER;
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else io_status->u.Status = FILE_GetNtStatus();
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break;
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}
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io_status->Information = result;
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done:
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if (needs_close) close( unix_handle );
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return io_status->u.Status;
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