diff options
| -rwxr-xr-x | erts/emulator/sys/win32/sys.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c index 307ca4866f..3dec913644 100755 --- a/erts/emulator/sys/win32/sys.c +++ b/erts/emulator/sys/win32/sys.c @@ -752,8 +752,8 @@ release_driver_data(DriverData* dp) struct handles_to_be_closed { HANDLE handles[MAXIMUM_WAIT_OBJECTS]; + DriverData *drv_data[MAXIMUM_WAIT_OBJECTS]; unsigned cnt; - DriverData *dp; }; static struct handles_to_be_closed* htbc_curr = NULL; CRITICAL_SECTION htbc_lock; @@ -771,15 +771,18 @@ static void close_active_handle(DriverData *dp, HANDLE handle) htbc = (struct handles_to_be_closed*) erts_alloc(ERTS_ALC_T_DRV_TAB, sizeof(*htbc)); htbc->handles[0] = CreateAutoEvent(FALSE); + htbc->drv_data[0] = NULL; htbc->cnt = 1; - htbc->dp = dp; - refer_driver_data(dp); /* Need to keep driver data until we have - closed the event; outstanding operation - might write into it.. */ thread = (HANDLE *) _beginthreadex(NULL, 0, threaded_handle_closer, htbc, 0, &tid); CloseHandle(thread); } - htbc->handles[htbc->cnt++] = handle; + i = htbc->cnt++; + htbc->handles[i] = handle; + htbc->drv_data[i] = dp; + if (dp) + refer_driver_data(dp); /* Need to keep driver data until we have + closed the event; outstanding operation + might write into it.. */ SetEvent(htbc->handles[0]); htbc_curr = htbc; LeaveCriticalSection(&htbc_lock); @@ -811,8 +814,13 @@ threaded_handle_closer(LPVOID param) default: ix = res - WAIT_OBJECT_0; if (ix > 0 && ix < htbc->cnt) { + int move_ix; CloseHandle(htbc->handles[ix]); - htbc->handles[ix] = htbc->handles[--htbc->cnt]; + if (htbc->drv_data[ix]) + unrefer_driver_data(htbc->drv_data[ix]); + move_ix = --htbc->cnt; + htbc->handles[ix] = htbc->handles[move_ix]; + htbc->drv_data[ix] = htbc->drv_data[move_ix]; } } if (htbc != htbc_curr) { @@ -828,7 +836,7 @@ threaded_handle_closer(LPVOID param) } LeaveCriticalSection(&htbc_lock); CloseHandle(htbc->handles[0]); - unrefer_driver_data(htbc->dp); + ASSERT(!htbc->drv_data[0]); erts_free(ERTS_ALC_T_DRV_TAB, htbc); DEBUGF(("threaded_handle_closer %p terminating\r\n", htbc)); return 0; |