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kernel32: Fix profile cache logic and don't cache new files.

This commit is contained in:
Michael Karcher 2008-08-17 19:03:24 +02:00 committed by Alexandre Julliard
parent af2d274f0e
commit 34aa6b7002
2 changed files with 68 additions and 9 deletions
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37
dlls/kernel32/profile.c
View File

@ -702,6 +702,25 @@ static void PROFILE_ReleaseFile(void)
ZeroMemory(&CurProfile->LastWriteTime, sizeof(CurProfile->LastWriteTime));
}
/***********************************************************************
*
* Compares a file time with the current time. If the file time is
* at least 2.1 seconds in the past, return true.
*
* Intended as cache safety measure: The time resolution on FAT is
* two seconds, so files that are not at least two seconds old might
* keep their time even on modification, so don't cache them.
*/
static BOOL is_not_current(FILETIME * ft)
{
FILETIME Now;
LONGLONG ftll, nowll;
GetSystemTimeAsFileTime(&Now);
ftll = ((LONGLONG)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
nowll = ((LONGLONG)Now.dwHighDateTime << 32) + Now.dwLowDateTime;
TRACE("%08x;%08x\n",(unsigned)ftll+21000000,(unsigned)nowll);
return ftll + 21000000 < nowll;
}
/***********************************************************************
* PROFILE_Open
@ -780,15 +799,17 @@ static BOOL PROFILE_Open( LPCWSTR filename, BOOL write_access )
if (hFile != INVALID_HANDLE_VALUE)
{
if (TRACE_ON(profile))
GetFileTime(hFile, NULL, NULL, &LastWriteTime);
if (!memcmp( &CurProfile->LastWriteTime, &LastWriteTime, sizeof(FILETIME) ) &&
is_not_current(&LastWriteTime))
TRACE("(%s): already opened (mru=%d)\n",
debugstr_w(buffer), i);
else
{
GetFileTime(hFile, NULL, NULL, &LastWriteTime);
if (memcmp(&CurProfile->LastWriteTime, &LastWriteTime, sizeof(FILETIME)))
TRACE("(%s): already opened (mru=%d)\n",
debugstr_w(buffer), i);
else
TRACE("(%s): already opened, needs refreshing (mru=%d)\n",
debugstr_w(buffer), i);
TRACE("(%s): already opened, needs refreshing (mru=%d)\n",
debugstr_w(buffer), i);
CurProfile->section = PROFILE_Load(hFile, &CurProfile->encoding);
CurProfile->LastWriteTime = LastWriteTime;
}
CloseHandle(hFile);
}

40
dlls/kernel32/tests/profile.c
View File

@ -362,13 +362,46 @@ static void test_profile_delete_on_close()
ok( size == sizeof contents - 1, "Test file: partial write\n");
res = GetPrivateProfileInt(SECTION, KEY, 0, testfile);
ok( res == 123, "Got %d instead of 123\n", res);
/* This also deletes the file */
CloseHandle(h);
}
static void test_profile_refresh(void)
{
static CHAR testfile[] = ".\\winetest4.ini";
HANDLE h;
DWORD size, res;
static const char contents1[] = "[" SECTION "]\n" KEY "=123\n";
static const char contents2[] = "[" SECTION "]\n" KEY "=124\n";
h = CreateFile(testfile, GENERIC_WRITE, FILE_SHARE_READ, NULL,
CREATE_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL);
ok( WriteFile( h, contents1, sizeof contents1 - 1, &size, NULL ),
"Cannot write test file: %x\n", GetLastError() );
ok( size == sizeof contents1 - 1, "Test file: partial write\n");
res = GetPrivateProfileInt(SECTION, KEY, 0, testfile);
ok( res == 123, "Got %d instead of 123\n", res);
CloseHandle(h);
/* Test proper invalidation of wine's profile file cache */
h = CreateFile(testfile, GENERIC_WRITE, FILE_SHARE_READ, NULL,
CREATE_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL);
ok( WriteFile( h, contents2, sizeof contents2 - 1, &size, NULL ),
"Cannot write test file: %x\n", GetLastError() );
ok( size == sizeof contents2 - 1, "Test file: partial write\n");
res = GetPrivateProfileInt(SECTION, KEY, 0, testfile);
ok( res == 124, "Got %d instead of 124\n", res);
/* This also deletes the file */
CloseHandle(h);
}
static void create_test_file(LPCSTR name, LPCSTR data, DWORD size)
{
HANDLE hfile;
@ -417,6 +450,10 @@ static void test_GetPrivateProfileString(void)
create_test_file(filename, content, sizeof(content));
/* Run this test series with caching. Wine won't cache profile
files younger than 2.1 seconds. */
Sleep(2500);
/* lpAppName is NULL */
lstrcpyA(buf, "kumquat");
ret = GetPrivateProfileStringA(NULL, "name1", "default",
@ -664,5 +701,6 @@ START_TEST(profile)
test_profile_sections_names();
test_profile_existing();
test_profile_delete_on_close();
test_profile_refresh();
test_GetPrivateProfileString();
}