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Make FindFirstFileExW and FindFirstChangeNotificationW use NtOpenFile

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directly so that they can take advantage of the FILE_DIRECTORY_FILE
option.
This commit is contained in:
Alexandre Julliard 2004-04-17 00:26:54 +00:00
parent 2a6e89ca64
commit a9832be1a7
2 changed files with 60 additions and 38 deletions
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48
dlls/kernel/change.c
View File

@ -27,6 +27,7 @@
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "ntstatus.h"
#include "wine/windef16.h"
#include "wine/server.h"
#include "wine/debug.h"
@ -39,23 +40,15 @@ WINE_DEFAULT_DEBUG_CHANNEL(file);
HANDLE WINAPI FindFirstChangeNotificationA( LPCSTR lpPathName, BOOL bWatchSubtree,
DWORD dwNotifyFilter )
{
HANDLE file, ret = INVALID_HANDLE_VALUE;
UNICODE_STRING pathW;
HANDLE ret = INVALID_HANDLE_VALUE;
TRACE( "%s %d %lx\n", debugstr_a(lpPathName), bWatchSubtree, dwNotifyFilter );
if ((file = CreateFileA( lpPathName, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0 )) == INVALID_HANDLE_VALUE)
return INVALID_HANDLE_VALUE;
SERVER_START_REQ( create_change_notification )
if (RtlCreateUnicodeStringFromAsciiz( &pathW, lpPathName ))
{
req->handle = file;
req->subtree = bWatchSubtree;
req->filter = dwNotifyFilter;
if (!wine_server_call_err( req )) ret = reply->handle;
ret = FindFirstChangeNotificationW( pathW.Buffer, bWatchSubtree, dwNotifyFilter );
RtlFreeUnicodeString( &pathW );
}
SERVER_END_REQ;
CloseHandle( file );
else SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return ret;
}
@ -65,13 +58,36 @@ HANDLE WINAPI FindFirstChangeNotificationA( LPCSTR lpPathName, BOOL bWatchSubtre
HANDLE WINAPI FindFirstChangeNotificationW( LPCWSTR lpPathName, BOOL bWatchSubtree,
DWORD dwNotifyFilter)
{
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
HANDLE file, ret = INVALID_HANDLE_VALUE;
TRACE( "%s %d %lx\n", debugstr_w(lpPathName), bWatchSubtree, dwNotifyFilter );
if ((file = CreateFileW( lpPathName, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0 )) == INVALID_HANDLE_VALUE)
if (!RtlDosPathNameToNtPathName_U( lpPathName, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &file, 0, &attr, &io, 0,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
RtlFreeUnicodeString( &nt_name );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
return INVALID_HANDLE_VALUE;
}
SERVER_START_REQ( create_change_notification )
{

50
dlls/kernel/file.c
View File

@ -626,10 +626,12 @@ HANDLE WINAPI FindFirstFileExW( LPCWSTR filename, FINDEX_INFO_LEVELS level,
LPVOID data, FINDEX_SEARCH_OPS search_op,
LPVOID filter, DWORD flags)
{
WCHAR buffer[MAX_PATH];
WCHAR *mask, *tmp = buffer;
WCHAR *mask, *p;
FIND_FIRST_INFO *info = NULL;
DWORD size;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
NTSTATUS status;
if ((search_op != FindExSearchNameMatch) || (flags != 0))
{
@ -641,22 +643,12 @@ HANDLE WINAPI FindFirstFileExW( LPCWSTR filename, FINDEX_INFO_LEVELS level,
FIXME("info level %d not implemented\n", level );
return INVALID_HANDLE_VALUE;
}
size = RtlGetFullPathName_U( filename, sizeof(buffer), buffer, &mask );
if (!size)
if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, &mask, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
if (size > sizeof(buffer))
{
tmp = HeapAlloc( GetProcessHeap(), 0, size );
if (!tmp)
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return INVALID_HANDLE_VALUE;
}
size = RtlGetFullPathName_U( filename, size, tmp, &mask );
}
if (!mask || !*mask)
{
@ -675,29 +667,43 @@ HANDLE WINAPI FindFirstFileExW( LPCWSTR filename, FINDEX_INFO_LEVELS level,
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
goto error;
}
/* truncate dir name before mask */
*mask = 0;
nt_name.Length = (mask - nt_name.Buffer) * sizeof(WCHAR);
/* check if path is the root of the drive */
info->is_root = FALSE;
if (tmp[0] && tmp[1] == ':')
p = nt_name.Buffer + 4; /* skip \??\ prefix */
if (p[0] && p[1] == ':')
{
WCHAR *p = tmp + 2;
p += 2;
while (*p == '\\') p++;
info->is_root = (*p == 0);
}
info->handle = CreateFileW( tmp, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0 );
if (info->handle == INVALID_HANDLE_VALUE)
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtOpenFile( &info->handle, GENERIC_READ, &attr, &io,
FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT );
if (status != STATUS_SUCCESS)
{
RtlFreeUnicodeString( &info->mask );
SetLastError( RtlNtStatusToDosError(status) );
goto error;
}
RtlFreeUnicodeString( &nt_name );
RtlInitializeCriticalSection( &info->cs );
info->data_pos = 0;
info->data_len = 0;
if (tmp != buffer) HeapFree( GetProcessHeap(), 0, tmp );
if (!FindNextFileW( (HANDLE)info, data ))
{
@ -709,8 +715,8 @@ HANDLE WINAPI FindFirstFileExW( LPCWSTR filename, FINDEX_INFO_LEVELS level,
return (HANDLE)info;
error:
if (tmp != buffer) HeapFree( GetProcessHeap(), 0, tmp );
if (info) HeapFree( GetProcessHeap(), 0, info );
RtlFreeUnicodeString( &nt_name );
return INVALID_HANDLE_VALUE;
}