Skip to main content

Browse the archive

Staging
v0.8.1
Revision 64838ce7172c7a92183b39b22504b433a33a884d authored by bobince on 11 March 2020, 23:39:02 UTC, committed by GitHub on 11 March 2020, 23:39:02 UTC 
bpo-39847: EnterNonRecursiveMutex() uses GetTickCount64() (GH-18780)
 
The 32-bit (49-day) TickCount relied on in EnterNonRecursiveMutex can overflow
in the gap between the 'target' time and the 'now' time WaitForSingleObjectEx
returns, causing the loop to think it needs to wait another 49 days. This is
most likely to happen when the machine is hibernated during
WaitForSingleObjectEx.

This makes acquiring a lock/event/etc from the _thread or threading module
appear to never timeout.

Replace with GetTickCount64 - this is OK now Python no longer supports XP which
lacks it, and is in use for time.monotonic().

Co-authored-by: And Clover <and.clover@bromium.com>
1 parent 894adc1
Raw File
frameobject.h 
/* Frame object interface */

#ifndef Py_FRAMEOBJECT_H
#define Py_FRAMEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

/* There are currently no frame related APIs in the stable ABI
 * (they're all in the full CPython-specific API)
 */

#ifndef Py_LIMITED_API
#  define Py_CPYTHON_FRAMEOBJECT_H
#  include  "cpython/frameobject.h"
#  undef Py_CPYTHON_FRAMEOBJECT_H
#endif

#ifdef __cplusplus
}
#endif
#endif /* !Py_FRAMEOBJECT_H */
back to top