sost.rar_memory_进程与线程

MemCheck Frequently Asked Questions *********************************************************************************************** Q: Why does not MemCheck report a leak when a block allocated with GetMem is not freed ? A: MemCheck uses the array "BlocksToShow" to decide wether it should show a leak or not. In this case, it is likely that BlocksToShow[MUser] is False. Setting it to true should cure the problem. *********************************************************************************************** Q: Why does not MemCheck tell me anything at the end of execution ? A: MemCheck raises exceptions to show you erroneous code. You will not see anything if "break on exceptions" is turned off. *********************************************************************************************** Q: Is there a problem using MemCheck with QuickReport ? A: Yes. Calling the method "Preview" fails MemCheck. As we do not have access to the sources of the component, we can not determine the problem. However, a bad use of memory in QuickReport is likely to cause this problem. For example, imagine that somebody allocates some memory with GetMem (when MemCheck is active) and frees this memory with SysFreeMem (unit System). This makes all the system inconsistent (and is generally not very good programming, if I may allow myself), while this would be OK without MemCheck. But once more, we can not prove that Quick report is erroneous. A way around this problem is to temporarily turn off MemCheck when you call QuickRep.Preview, and turn it on again just after (Ok, this is not very nice, but should work). Last update: 19.03.98 Contact... Jean Marc Eber is at: Jean-Marc.Eber@socgen.com Vincent Mahon is at: Vincent.Mahon@socgen.com