static void DMem_VerifyHeader(MemoryBlockHeader * header) {
DASSERTMSG( DMem_ClientCheckPtr(header, sizeof(MemoryBlockHeader)), "Invalid header" );
DASSERTMSG( DMem_VerifyGuardArea(header->guard), "Header corruption, possible underwrite" );
DASSERTMSG( header->linenumber > 0 && header->linenumber < MAX_LINENUM, "Header corruption, bad line number" );
DASSERTMSG( header->size <= DMemGlobalState.biggestBlock, "Header corruption, block size is too large");
DASSERTMSG( header->order <= DMemGlobalState.totalAllocs, "Header corruption, block order out of range");
}
static MemoryBlockHeader * DMem_VerifyBlock(void * memptr) {
MemoryBlockHeader * header;
MemoryBlockTail * tail;
/* check if the pointer is valid */
DASSERTMSG( DMem_ClientCheckPtr(memptr, 1), "Invalid pointer");
/* check if the block header is valid */
header = (MemoryBlockHeader *)((byte_t *)memptr - sizeof(MemoryBlockHeader));
DMem_VerifyHeader(header);
/* check that the memory itself is valid */
DASSERTMSG( DMem_ClientCheckPtr(memptr, DMEM_MIN(MAX_CHECK_BYTES,header->size)), "Block memory invalid" );
/* check that the pointer to the alloc list is valid */
DASSERTMSG( DMem_ClientCheckPtr(header->listEnter, sizeof(MemoryListLink)), "Header corruption, alloc list pointer invalid" );
/* check the tail of the block for overruns */
tail = (MemoryBlockTail *) ( (byte_t *)memptr + header->size );
DMem_VerifyTail(tail);
return header;
}
void JNICALL JAWTDrawingSurface::FreeDSI
(JAWT_DrawingSurfaceInfo* dsi)
{
TRY_NO_VERIFY;
DASSERTMSG(dsi != NULL, "Drawing Surface Info is NULL\n");
JAWTDrawingSurfaceInfo* jdsi = static_cast<JAWTDrawingSurfaceInfo*>(dsi);
::ReleaseDC(jdsi->hwnd, jdsi->hdc);
CATCH_BAD_ALLOC;
}
void operator delete(void *ptr, const char*, int) {
DASSERTMSG(FALSE, "This version of 'delete' should never get called!!!");
}
static void DMem_VerifyTail(MemoryBlockTail * tail) {
DASSERTMSG( DMem_ClientCheckPtr(tail, sizeof(MemoryBlockTail)), "Tail corruption, invalid pointer");
DASSERTMSG( DMem_VerifyGuardArea(tail->guard), "Tail corruption, possible overwrite" );
}
