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Added a comment about the unreferenced PyThreadState.tick_counter

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This commit is contained in:
Tim Peters 2004-03-29 02:24:26 +00:00
parent aeaec8d4aa
commit 174175bf3a
1 changed files with 18 additions and 11 deletions
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29
Include/pystate.h
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@ -74,7 +74,14 @@ typedef struct _ts {
PyObject *dict;
/* tick_counter is incremented whenever the check_interval ticker
* reaches zero. The purpose is to give a useful measure of the number
* of interpreted bytecode instructions in a given thread. This
* extremely lightweight statistic collector may be of interest to
* profilers (like psyco.jit()), although nothing in the core uses it.
*/
int tick_counter;
int gilstate_counter;
PyObject *async_exc; /* Asynchronous exception to raise */
@ -112,16 +119,16 @@ PyAPI_DATA(PyThreadState *) _PyThreadState_Current;
#define PyThreadState_GET() (_PyThreadState_Current)
#endif
typedef
typedef
enum {PyGILState_LOCKED, PyGILState_UNLOCKED}
PyGILState_STATE;
/* Ensure that the current thread is ready to call the Python
C API, regardless of the current state of Python, or of its
thread lock. This may be called as many times as desired
by a thread so long as each call is matched with a call to
PyGILState_Release(). In general, other thread-state APIs may
be used between _Ensure() and _Release() calls, so long as the
by a thread so long as each call is matched with a call to
PyGILState_Release(). In general, other thread-state APIs may
be used between _Ensure() and _Release() calls, so long as the
thread-state is restored to its previous state before the Release().
For example, normal use of the Py_BEGIN_ALLOW_THREADS/
Py_END_ALLOW_THREADS macros are acceptable.
@ -129,8 +136,8 @@ typedef
The return value is an opaque "handle" to the thread state when
PyGILState_Ensure() was called, and must be passed to
PyGILState_Release() to ensure Python is left in the same state. Even
though recursive calls are allowed, these handles can *not* be shared -
each unique call to PyGILState_Ensure must save the handle for its
though recursive calls are allowed, these handles can *not* be shared -
each unique call to PyGILState_Ensure must save the handle for its
call to PyGILState_Release.
When the function returns, the current thread will hold the GIL.
@ -141,18 +148,18 @@ PyAPI_FUNC(PyGILState_STATE) PyGILState_Ensure(void);
/* Release any resources previously acquired. After this call, Python's
state will be the same as it was prior to the corresponding
PyGILState_Ensure() call (but generally this state will be unknown to
PyGILState_Ensure() call (but generally this state will be unknown to
the caller, hence the use of the GILState API.)
Every call to PyGILState_Ensure must be matched by a call to
Every call to PyGILState_Ensure must be matched by a call to
PyGILState_Release on the same thread.
*/
PyAPI_FUNC(void) PyGILState_Release(PyGILState_STATE);
/* Helper/diagnostic function - get the current thread state for
this thread. May return NULL if no GILState API has been used
on the current thread. Note the main thread always has such a
thread-state, even if no auto-thread-state call has been made
this thread. May return NULL if no GILState API has been used
on the current thread. Note the main thread always has such a
thread-state, even if no auto-thread-state call has been made
on the main thread.
*/
PyAPI_FUNC(PyThreadState *) PyGILState_GetThisThreadState(void);