Opened 13 years ago
Closed 13 years ago
#444 closed defect (fixed)
seeall can trap is window closed before scan completes
| Reported by: | Steven Levine | Owned by: | Steven Levine |
|---|---|---|---|
| Priority: | minor | Milestone: | Release_3.19 |
| Component: | fm/2 base | Version: | 3.19 |
| Keywords: | Cc: |
Description
If the seeall window is closed while the initial scan is in progress, it can trap in FindAllThread? or a subroutine of FindAllThread?. This occurs because WM_DESTROY frees memory that the thread will attempt to access. The trap is typically in xrealloc, but it can be elsewhere.
Note that this defect may occur for other threads with similar logic.
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Fixed by changeset #1559. FindAllThread? was not honoring stop request quickly and, stupidly, the semaphore request was not checked for failures. This allowed memory to be freed while the FindAllThread? was still accessing it.
FindAllThread? now quits quickly and these semaphore requests in the code path are checked. More checking would be better.