diff options
Diffstat (limited to 'Include/pythread.h')
| -rw-r--r-- | Include/pythread.h | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/Include/pythread.h b/Include/pythread.h index 2c2fd63..0784f6b 100644 --- a/Include/pythread.h +++ b/Include/pythread.h @@ -33,27 +33,18 @@ PyAPI_FUNC(int) PyThread_acquire_lock(PyThread_type_lock, int); #define WAIT_LOCK 1 #define NOWAIT_LOCK 0 -/* PY_TIMEOUT_T is the integral type used to specify timeouts when waiting - on a lock (see PyThread_acquire_lock_timed() below). - PY_TIMEOUT_MAX is the highest usable value (in microseconds) of that - type, and depends on the system threading API. - - NOTE: this isn't the same value as `_thread.TIMEOUT_MAX`. The _thread - module exposes a higher-level API, with timeouts expressed in seconds - and floating-point numbers allowed. -*/ +// PY_TIMEOUT_T is the integral type used to specify timeouts when waiting +// on a lock (see PyThread_acquire_lock_timed() below). #define PY_TIMEOUT_T long long -PyAPI_DATA(const long long) PY_TIMEOUT_MAX; - /* If microseconds == 0, the call is non-blocking: it returns immediately even when the lock can't be acquired. If microseconds > 0, the call waits up to the specified duration. If microseconds < 0, the call waits until success (or abnormal failure) - microseconds must be less than PY_TIMEOUT_MAX. Behaviour otherwise is - undefined. + If *microseconds* is greater than PY_TIMEOUT_MAX, clamp the timeout to + PY_TIMEOUT_MAX microseconds. If intr_flag is true and the acquire is interrupted by a signal, then the call will return PY_LOCK_INTR. The caller may reattempt to acquire the |