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ntdll: Add defines for the file position magic constants.

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This commit is contained in:
Alexandre Julliard 2013-10-09 16:13:41 +02:00
parent 3cae528eef
commit ac519d0eea
1 changed files with 11 additions and 8 deletions
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19
dlls/ntdll/file.c
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@ -95,6 +95,9 @@ mode_t FILE_umask = 0;
#define SECSPERDAY 86400 #define SECSPERDAY 86400
#define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY) #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
#define FILE_WRITE_TO_END_OF_FILE ((LONGLONG)-1)
#define FILE_USE_FILE_POINTER_POSITION ((LONGLONG)-2)
static const WCHAR ntfsW[] = {'N','T','F','S'}; static const WCHAR ntfsW[] = {'N','T','F','S'};
/************************************************************************** /**************************************************************************
@ -614,7 +617,7 @@ NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
goto done; goto done;
} }
if (offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */) if (offset && offset->QuadPart != FILE_USE_FILE_POINTER_POSITION)
{ {
/* async I/O doesn't make sense on regular files */ /* async I/O doesn't make sense on regular files */
while ((result = pread( unix_handle, buffer, length, offset->QuadPart )) == -1) while ((result = pread( unix_handle, buffer, length, offset->QuadPart )) == -1)
@ -816,7 +819,7 @@ NTSTATUS WINAPI NtReadFileScatter( HANDLE file, HANDLE event, PIO_APC_ROUTINE ap
while (length) while (length)
{ {
if (offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */) if (offset && offset->QuadPart != FILE_USE_FILE_POINTER_POSITION)
result = pread( unix_handle, (char *)segments->Buffer + pos, result = pread( unix_handle, (char *)segments->Buffer + pos,
page_size - pos, offset->QuadPart + total ); page_size - pos, offset->QuadPart + total );
else else
@ -981,7 +984,7 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
if (type == FD_TYPE_FILE) if (type == FD_TYPE_FILE)
{ {
if (async_write && if (async_write &&
(!offset || (offset->QuadPart < 0 && offset->QuadPart != (LONGLONG)-1 /* FILE_WRITE_TO_END_OF_FILE */))) (!offset || (offset->QuadPart < 0 && offset->QuadPart != FILE_WRITE_TO_END_OF_FILE)))
{ {
status = STATUS_INVALID_PARAMETER; status = STATUS_INVALID_PARAMETER;
goto done; goto done;
@ -989,15 +992,15 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
if (append_write) if (append_write)
{ {
offset_eof.QuadPart = (LONGLONG)-1; /* FILE_WRITE_TO_END_OF_FILE */ offset_eof.QuadPart = FILE_WRITE_TO_END_OF_FILE;
offset = &offset_eof; offset = &offset_eof;
} }
if (offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */) if (offset && offset->QuadPart != FILE_USE_FILE_POINTER_POSITION)
{ {
off_t off = offset->QuadPart; off_t off = offset->QuadPart;
if (offset->QuadPart == (LONGLONG)-1 /* FILE_WRITE_TO_END_OF_FILE */) if (offset->QuadPart == FILE_WRITE_TO_END_OF_FILE)
{ {
struct stat st; struct stat st;
@ -1037,7 +1040,7 @@ NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
else if (type == FD_TYPE_SERIAL) else if (type == FD_TYPE_SERIAL)
{ {
if (async_write && if (async_write &&
(!offset || (offset->QuadPart < 0 && offset->QuadPart != (LONGLONG)-1 /* FILE_WRITE_TO_END_OF_FILE */))) (!offset || (offset->QuadPart < 0 && offset->QuadPart != FILE_WRITE_TO_END_OF_FILE)))
{ {
status = STATUS_INVALID_PARAMETER; status = STATUS_INVALID_PARAMETER;
goto done; goto done;
@ -1200,7 +1203,7 @@ NTSTATUS WINAPI NtWriteFileGather( HANDLE file, HANDLE event, PIO_APC_ROUTINE ap
while (length) while (length)
{ {
if (offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */) if (offset && offset->QuadPart != FILE_USE_FILE_POINTER_POSITION)
result = pwrite( unix_handle, (char *)segments->Buffer + pos, result = pwrite( unix_handle, (char *)segments->Buffer + pos,
page_size - pos, offset->QuadPart + total ); page_size - pos, offset->QuadPart + total );
else else