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Overview
| Comment: | Add error logging to native Win32 heap support. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | winNativeHeap |
| Files: | files | file ages | folders |
| SHA1: |
7fca5a284cded6d7531060da6e99a57a |
| User & Date: | mistachkin 2011-08-24 17:42:22 |
Context
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2011-08-25
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| 01:16 | Make sure that SQLITE_FCNTL_SIZE_HINT on Windows does not shrink the file. check-in: d4f6437f user: mistachkin tags: winNativeHeap | |
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2011-08-24
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| 17:42 | Add error logging to native Win32 heap support. check-in: 7fca5a28 user: mistachkin tags: winNativeHeap | |
| 16:13 | Experimental work to allow SQLite to use the native Win32 heap API. check-in: bf3d0ab5 user: mistachkin tags: winNativeHeap | |
Changes
Changes to Makefile.msc.
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# TCC = $(TCC) -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS # # Use native Win32 heap. # TCC = $(TCC) -DSQLITE_WIN32_MALLOC=1 # The locations of the Tcl header and library files. Also, the library that # non-stubs enabled programs using Tcl must link against. These variables # (TCLINCDIR, TCLLIBDIR, and LIBTCL) may be overridden via the environment # prior to running nmake in order to match the actual installed location and # version on this machine. # |
> |
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 |
#
TCC = $(TCC) -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS
#
# Use native Win32 heap.
#
TCC = $(TCC) -DSQLITE_WIN32_MALLOC=1
# TCC = $(TCC) -DSQLITE_WIN32_MALLOC_VALIDATE=1
# The locations of the Tcl header and library files. Also, the library that
# non-stubs enabled programs using Tcl must link against. These variables
# (TCLINCDIR, TCLLIBDIR, and LIBTCL) may be overridden via the environment
# prior to running nmake in order to match the actual installed location and
# version on this machine.
#
|
Changes to src/os_win.c.
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BOOL bOwned; /* Do we own the heap (i.e. destroy it on shutdown)? */
};
#define WINMEM_MAGIC 0x42b2830b
static struct winMemData win_mem_data = { WINMEM_MAGIC, NULL, FALSE };
static void *winMemMalloc(int nBytes);
static void winMemFree(void *pPrior);
static void *winMemRealloc(void *pPrior, int nBytes);
static int winMemSize(void *p);
static int winMemRoundup(int n);
static int winMemInit(void *pAppData);
static void winMemShutdown(void *pAppData);
................................................................................
#ifdef SQLITE_WIN32_MALLOC
/*
** Allocate nBytes of memory.
*/
static void *winMemMalloc(int nBytes){
HANDLE hHeap;
assert( win_mem_data.magic==WINMEM_MAGIC );
hHeap = win_mem_data.hHeap;
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, NULL) );
#endif
assert( nBytes>=0 );
return HeapAlloc(hHeap, 0, (SIZE_T)nBytes);
}
/*
** Free memory.
*/
static void winMemFree(void *pPrior){
HANDLE hHeap;
assert( win_mem_data.magic==WINMEM_MAGIC );
hHeap = win_mem_data.hHeap;
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, pPrior) );
#endif
if (!pPrior) return; /* Passing NULL to HeapFree is undefined. */
HeapFree(hHeap, 0, pPrior);
}
/*
** Change the size of an existing memory allocation
*/
static void *winMemRealloc(void *pPrior, int nBytes){
HANDLE hHeap;
assert( win_mem_data.magic==WINMEM_MAGIC );
hHeap = win_mem_data.hHeap;
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, pPrior) );
#endif
assert( nBytes>=0 );
if (!pPrior) return HeapAlloc(hHeap, 0, (SIZE_T)nBytes);
return HeapReAlloc(hHeap, 0, pPrior, (SIZE_T)nBytes);
}
/*
** Return the size of an outstanding allocation, in bytes.
*/
static int winMemSize(void *p){
HANDLE hHeap;
SIZE_T n;
assert( win_mem_data.magic==WINMEM_MAGIC );
hHeap = win_mem_data.hHeap;
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, NULL) );
#endif
if (!p) return 0;
n = HeapSize(hHeap, 0, p);
assert( n<=INT_MAX );
return (int)n;
}
/*
** Round up a request size to the next valid allocation size.
*/
static int winMemRoundup(int n){
................................................................................
/*
** Initialize this module.
*/
static int winMemInit(void *pAppData){
winMemData *pWinMemData = (winMemData *)pAppData;
if (!pWinMemData) return SQLITE_ERROR;
assert( pWinMemData->magic==WINMEM_MAGIC );
if (!pWinMemData->hHeap){
pWinMemData->hHeap = HeapCreate(0, SQLITE_WIN32_HEAP_INIT_SIZE,
SQLITE_WIN32_HEAP_MAX_SIZE);
if (!pWinMemData->hHeap){
return SQLITE_NOMEM;
}
pWinMemData->bOwned = TRUE;
}
assert( pWinMemData->hHeap!=0 );
assert( pWinMemData->hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
................................................................................
/*
** Deinitialize this module.
*/
static void winMemShutdown(void *pAppData){
winMemData *pWinMemData = (winMemData *)pAppData;
if (!pWinMemData) return;
if (pWinMemData->hHeap){
assert( pWinMemData->hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert( HeapValidate(pWinMemData->hHeap, 0, NULL) );
#endif
if (pWinMemData->bOwned){
if (!HeapDestroy(pWinMemData->hHeap)){
/* TODO: Log this? */
}
pWinMemData->bOwned = FALSE;
}
pWinMemData->hHeap = NULL;
}
}
|
> > > > < > | | > > > > > | | | | > > > > < > | > | > | > > > > > > > | | | | > > > > | | | > > > > | | | | | > |
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BOOL bOwned; /* Do we own the heap (i.e. destroy it on shutdown)? */
};
#define WINMEM_MAGIC 0x42b2830b
static struct winMemData win_mem_data = { WINMEM_MAGIC, NULL, FALSE };
#define winMemAssertMagic() assert( win_mem_data.magic==WINMEM_MAGIC )
#define winMemGetHeap() win_mem_data.hHeap
static void *winMemMalloc(int nBytes);
static void winMemFree(void *pPrior);
static void *winMemRealloc(void *pPrior, int nBytes);
static int winMemSize(void *p);
static int winMemRoundup(int n);
static int winMemInit(void *pAppData);
static void winMemShutdown(void *pAppData);
................................................................................
#ifdef SQLITE_WIN32_MALLOC
/*
** Allocate nBytes of memory.
*/
static void *winMemMalloc(int nBytes){
HANDLE hHeap;
void *p;
winMemAssertMagic();
hHeap = winMemGetHeap();
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, NULL) );
#endif
assert( nBytes>=0 );
p = HeapAlloc(hHeap, 0, (SIZE_T)nBytes);
if( !p ){
sqlite3_log(SQLITE_NOMEM, "failed to HeapAlloc %u bytes (%d), heap=%p",
nBytes, GetLastError(), (void*)hHeap);
}
return p;
}
/*
** Free memory.
*/
static void winMemFree(void *pPrior){
HANDLE hHeap;
winMemAssertMagic();
hHeap = winMemGetHeap();
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, pPrior) );
#endif
if( !pPrior ) return; /* Passing NULL to HeapFree is undefined. */
if( !HeapFree(hHeap, 0, pPrior) ){
sqlite3_log(SQLITE_NOMEM, "failed to HeapFree block %p (%d), heap=%p",
pPrior, GetLastError(), (void*)hHeap);
}
}
/*
** Change the size of an existing memory allocation
*/
static void *winMemRealloc(void *pPrior, int nBytes){
HANDLE hHeap;
void *p;
winMemAssertMagic();
hHeap = winMemGetHeap();
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, pPrior) );
#endif
assert( nBytes>=0 );
if( !pPrior ){
p = HeapAlloc(hHeap, 0, (SIZE_T)nBytes);
}else{
p = HeapReAlloc(hHeap, 0, pPrior, (SIZE_T)nBytes);
}
if( !p ){
sqlite3_log(SQLITE_NOMEM, "failed to %s %u bytes (%d), heap=%p",
pPrior ? "HeapReAlloc" : "HeapAlloc", nBytes, GetLastError(),
(void*)hHeap);
}
return p;
}
/*
** Return the size of an outstanding allocation, in bytes.
*/
static int winMemSize(void *p){
HANDLE hHeap;
SIZE_T n;
winMemAssertMagic();
hHeap = winMemGetHeap();
assert( hHeap!=0 );
assert( hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert ( HeapValidate(hHeap, 0, NULL) );
#endif
if( !p ) return 0;
n = HeapSize(hHeap, 0, p);
if( n==(SIZE_T)-1 ){
sqlite3_log(SQLITE_NOMEM, "failed to HeapSize block %p (%d), heap=%p",
p, GetLastError(), (void*)hHeap);
return 0;
}
return (int)n;
}
/*
** Round up a request size to the next valid allocation size.
*/
static int winMemRoundup(int n){
................................................................................
/*
** Initialize this module.
*/
static int winMemInit(void *pAppData){
winMemData *pWinMemData = (winMemData *)pAppData;
if( !pWinMemData ) return SQLITE_ERROR;
assert( pWinMemData->magic==WINMEM_MAGIC );
if( !pWinMemData->hHeap ){
pWinMemData->hHeap = HeapCreate(0, SQLITE_WIN32_HEAP_INIT_SIZE,
SQLITE_WIN32_HEAP_MAX_SIZE);
if( !pWinMemData->hHeap ){
sqlite3_log(SQLITE_NOMEM,
"failed to HeapCreate (%d), initSize=%u, maxSize=%u",
GetLastError(), SQLITE_WIN32_HEAP_INIT_SIZE,
SQLITE_WIN32_HEAP_MAX_SIZE);
return SQLITE_NOMEM;
}
pWinMemData->bOwned = TRUE;
}
assert( pWinMemData->hHeap!=0 );
assert( pWinMemData->hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
................................................................................
/*
** Deinitialize this module.
*/
static void winMemShutdown(void *pAppData){
winMemData *pWinMemData = (winMemData *)pAppData;
if( !pWinMemData ) return;
if( pWinMemData->hHeap ){
assert( pWinMemData->hHeap!=INVALID_HANDLE_VALUE );
#ifdef SQLITE_WIN32_MALLOC_VALIDATE
assert( HeapValidate(pWinMemData->hHeap, 0, NULL) );
#endif
if( pWinMemData->bOwned ){
if( !HeapDestroy(pWinMemData->hHeap) ){
sqlite3_log(SQLITE_NOMEM, "failed to HeapDestroy (%d), heap=%p",
GetLastError(), (void*)pWinMemData->hHeap);
}
pWinMemData->bOwned = FALSE;
}
pWinMemData->hHeap = NULL;
}
}
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