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Add experimental sqlite3_config option to control the native Win32 heap size.

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FossilOrigin-Name: f09f11e94b5a7c2e51d99c3700d2acd2f3903de9
This commit is contained in:
mistachkin
2013-11-23 00:27:29 +00:00
parent 20b859530b
commit ac1f10458b
8 changed files with 149 additions and 16 deletions
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16
src/os_win.c
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@@ -1401,14 +1401,20 @@ static int winMemInit(void *pAppData){
#if !SQLITE_OS_WINRT && SQLITE_WIN32_HEAP_CREATE
if( !pWinMemData->hHeap ){
DWORD dwInitialSize = SQLITE_WIN32_HEAP_INIT_SIZE;
DWORD dwMaximumSize = (DWORD)sqlite3GlobalConfig.nHeap;
if( dwMaximumSize==0 ){
dwMaximumSize = SQLITE_WIN32_HEAP_MAX_SIZE;
}else if( dwInitialSize>dwMaximumSize ){
dwInitialSize = dwMaximumSize;
}
pWinMemData->hHeap = osHeapCreate(SQLITE_WIN32_HEAP_FLAGS,
SQLITE_WIN32_HEAP_INIT_SIZE,
SQLITE_WIN32_HEAP_MAX_SIZE);
dwInitialSize, dwMaximumSize);
if( !pWinMemData->hHeap ){
sqlite3_log(SQLITE_NOMEM,
"failed to HeapCreate (%lu), flags=%u, initSize=%u, maxSize=%u",
osGetLastError(), SQLITE_WIN32_HEAP_FLAGS,
SQLITE_WIN32_HEAP_INIT_SIZE, SQLITE_WIN32_HEAP_MAX_SIZE);
"failed to HeapCreate (%lu), flags=%u, initSize=%lu, maxSize=%lu",
osGetLastError(), SQLITE_WIN32_HEAP_FLAGS, dwInitialSize,
dwMaximumSize);
return SQLITE_NOMEM;
}
pWinMemData->bOwned = TRUE;