Style guide & consistency changes. No semantic changes.
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@ -388,18 +388,20 @@ static int autoTLSkey = 0;
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/* Internal initialization/finalization functions called by
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Py_Initialize/Py_Finalize
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*/
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void _PyGILState_Init(PyInterpreterState *i, PyThreadState *t)
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void
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_PyGILState_Init(PyInterpreterState *i, PyThreadState *t)
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{
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assert(i && t); /* must init with a valid states */
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assert(i && t); /* must init with valid states */
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autoTLSkey = PyThread_create_key();
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autoInterpreterState = i;
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/* Now stash the thread state for this thread in TLS */
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PyThread_set_key_value(autoTLSkey, (void *)t);
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assert(t->gilstate_counter==0); /* must be a new thread state */
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assert(t->gilstate_counter == 0); /* must be a new thread state */
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t->gilstate_counter = 1;
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}
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void _PyGILState_Fini(void)
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void
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_PyGILState_Fini(void)
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{
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PyThread_delete_key(autoTLSkey);
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autoTLSkey = 0;
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@ -407,14 +409,16 @@ void _PyGILState_Fini(void)
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}
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/* The public functions */
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PyThreadState *PyGILState_GetThisThreadState(void)
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PyThreadState *
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PyGILState_GetThisThreadState(void)
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{
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if (autoInterpreterState==NULL || autoTLSkey==0)
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if (autoInterpreterState == NULL || autoTLSkey == 0)
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return NULL;
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return (PyThreadState *) PyThread_get_key_value(autoTLSkey);
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return (PyThreadState *)PyThread_get_key_value(autoTLSkey);
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}
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PyGILState_STATE PyGILState_Ensure(void)
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PyGILState_STATE
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PyGILState_Ensure(void)
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{
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int current;
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PyThreadState *tcur;
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@ -425,30 +429,32 @@ PyGILState_STATE PyGILState_Ensure(void)
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*/
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assert(autoInterpreterState); /* Py_Initialize() hasn't been called! */
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tcur = PyThread_get_key_value(autoTLSkey);
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if (tcur==NULL) {
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if (tcur == NULL) {
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/* Create a new thread state for this thread */
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tcur = PyThreadState_New(autoInterpreterState);
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if (tcur==NULL)
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if (tcur == NULL)
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Py_FatalError("Couldn't create thread-state for new thread");
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PyThread_set_key_value(autoTLSkey, (void *)tcur);
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current = 0; /* new thread state is never current */
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} else
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}
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else
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current = PyThreadState_IsCurrent(tcur);
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if (!current)
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if (current == 0)
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PyEval_RestoreThread(tcur);
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/* Update our counter in the thread-state - no need for locks:
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- tcur will remain valid as we hold the GIL.
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- the counter is safe as we are the only thread "allowed"
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to modify this value
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*/
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tcur->gilstate_counter++;
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++tcur->gilstate_counter;
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return current ? PyGILState_LOCKED : PyGILState_UNLOCKED;
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}
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void PyGILState_Release(PyGILState_STATE oldstate)
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void
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PyGILState_Release(PyGILState_STATE oldstate)
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{
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PyThreadState *tcur = PyThread_get_key_value(autoTLSkey);
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if (tcur==NULL)
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if (tcur == NULL)
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Py_FatalError("auto-releasing thread-state, "
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"but no thread-state for this thread");
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/* We must hold the GIL and have our thread state current */
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@ -456,27 +462,27 @@ void PyGILState_Release(PyGILState_STATE oldstate)
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but while this is very new (April 2003), the extra check
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by release-only users can't hurt.
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*/
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if (!PyThreadState_IsCurrent(tcur))
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if (! PyThreadState_IsCurrent(tcur))
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Py_FatalError("This thread state must be current when releasing");
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assert (PyThreadState_IsCurrent(tcur));
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tcur->gilstate_counter -= 1;
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assert (tcur->gilstate_counter >= 0); /* illegal counter value */
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assert(PyThreadState_IsCurrent(tcur));
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--tcur->gilstate_counter;
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assert(tcur->gilstate_counter >= 0); /* illegal counter value */
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/* If we are about to destroy this thread-state, we must
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clear it while the lock is held, as destructors may run
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*/
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if (tcur->gilstate_counter==0) {
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if (tcur->gilstate_counter == 0) {
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/* can't have been locked when we created it */
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assert(oldstate==PyGILState_UNLOCKED);
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assert(oldstate == PyGILState_UNLOCKED);
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PyThreadState_Clear(tcur);
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}
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/* Release the lock if necessary */
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if (oldstate==PyGILState_UNLOCKED)
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if (oldstate == PyGILState_UNLOCKED)
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PyEval_ReleaseThread(tcur);
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/* Now complete destruction of the thread if necessary */
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if (tcur->gilstate_counter==0) {
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if (tcur->gilstate_counter == 0) {
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/* Delete this thread from our TLS */
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PyThread_delete_key_value(autoTLSkey);
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/* Delete the thread-state */
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@ -157,7 +157,8 @@ static struct key *keyhead = NULL;
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static int nkeys = 0;
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static PyThread_type_lock keymutex = NULL;
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static struct key *find_key(int key, void *value)
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static struct key *
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find_key(int key, void *value)
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{
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struct key *p;
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long id = PyThread_get_thread_ident();
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@ -180,14 +181,16 @@ static struct key *find_key(int key, void *value)
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return p;
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}
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int PyThread_create_key(void)
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int
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PyThread_create_key(void)
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{
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if (keymutex == NULL)
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keymutex = PyThread_allocate_lock();
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return ++nkeys;
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}
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void PyThread_delete_key(int key)
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void
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PyThread_delete_key(int key)
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{
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struct key *p, **q;
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PyThread_acquire_lock(keymutex, 1);
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@ -204,7 +207,8 @@ void PyThread_delete_key(int key)
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PyThread_release_lock(keymutex);
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}
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int PyThread_set_key_value(int key, void *value)
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int
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PyThread_set_key_value(int key, void *value)
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{
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struct key *p = find_key(key, value);
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if (p == NULL)
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@ -213,7 +217,8 @@ int PyThread_set_key_value(int key, void *value)
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return 0;
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}
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void *PyThread_get_key_value(int key)
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void *
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PyThread_get_key_value(int key)
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{
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struct key *p = find_key(key, NULL);
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if (p == NULL)
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@ -222,7 +227,8 @@ void *PyThread_get_key_value(int key)
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return p->value;
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}
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void PyThread_delete_key_value(int key)
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void
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PyThread_delete_key_value(int key)
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{
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long id = PyThread_get_thread_ident();
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struct key *p, **q;
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