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import sys
import pytest
from pypy.module.cpyext.test.test_cpyext import AppTestCpythonExtensionBase
only_pypy ="config.option.runappdirect and '__pypy__' not in sys.builtin_module_names"
class AppTestThread(AppTestCpythonExtensionBase):
@pytest.mark.skipif(only_pypy, reason='pypy only test')
@pytest.mark.xfail(reason='segfaults', run=False)
def test_get_thread_ident(self):
module = self.import_extension('foo', [
("get_thread_ident", "METH_NOARGS",
"""
#ifndef PyThread_get_thread_ident
#error "seems we are not accessing PyPy's functions"
#endif
return PyLong_FromLong(PyThread_get_thread_ident());
"""),
])
import threading
results = []
def some_thread():
res = module.get_thread_ident()
results.append((res, threading.get_ident()))
some_thread()
assert results[0][0] == results[0][1]
th = threading.Thread(target=some_thread, args=())
th.start()
th.join()
assert results[1][0] == results[1][1]
assert results[0][0] != results[1][0]
@pytest.mark.skipif(only_pypy, reason='pypy only test')
def test_acquire_lock(self):
module = self.import_extension('foo', [
("test_acquire_lock", "METH_NOARGS",
"""
#ifndef PyThread_allocate_lock
#error "seems we are not accessing PyPy's functions"
#endif
PyThread_type_lock lock = PyThread_allocate_lock();
if (PyThread_acquire_lock(lock, 1) != 1) {
PyErr_SetString(PyExc_AssertionError, "first acquire");
return NULL;
}
if (PyThread_acquire_lock(lock, 0) != 0) {
PyErr_SetString(PyExc_AssertionError, "second acquire");
return NULL;
}
PyThread_free_lock(lock);
Py_RETURN_NONE;
"""),
])
module.test_acquire_lock()
@pytest.mark.skipif(only_pypy, reason='pypy only test')
def test_release_lock(self):
module = self.import_extension('foo', [
("test_release_lock", "METH_NOARGS",
"""
#ifndef PyThread_release_lock
#error "seems we are not accessing PyPy's functions"
#endif
PyThread_type_lock lock = PyThread_allocate_lock();
PyThread_acquire_lock(lock, 1);
PyThread_release_lock(lock);
if (PyThread_acquire_lock(lock, 0) != 1) {
PyErr_SetString(PyExc_AssertionError, "first acquire");
return NULL;
}
PyThread_free_lock(lock);
Py_RETURN_NONE;
"""),
])
module.test_release_lock()
@pytest.mark.skipif(only_pypy, reason='pypy only test')
def test_timed_lock(self):
module = self.import_extension('foo', [
("timed_acquire_lock", "METH_O",
"""
#ifndef PyThread_acquire_lock_timed
#error "seems we are not accessing PyPy's functions"
#endif
PyLockStatus acquire_result;
int microseconds = PyLong_AsLong(args);
Py_BEGIN_ALLOW_THREADS
acquire_result = PyThread_acquire_lock_timed(global_lock, microseconds, 0);
Py_END_ALLOW_THREADS
if (acquire_result == PY_LOCK_ACQUIRED) {
Py_RETURN_TRUE;
} else {
Py_RETURN_FALSE;
}
"""),
("release_lock", "METH_NOARGS",
"""
PyThread_release_lock(global_lock);
Py_RETURN_NONE;
"""),
("cleanup_lock", "METH_NOARGS",
"""
// cleanup isn't part of the test, but I'd feel guilty otherwise
PyThread_free_lock(global_lock); global_lock=NULL;
Py_RETURN_NONE;
"""
)
],
prologue="static PyThread_type_lock global_lock;",
more_init="global_lock = PyThread_allocate_lock();"
)
try:
import threading
import time
failure = []
assert module.timed_acquire_lock(-1)
main_thread_should_release_the_lock_barrier = threading.Barrier(2)
def thread_func():
try:
if module.timed_acquire_lock(0):
failure.append("Lock should be held elsewhere")
return
if module.timed_acquire_lock(1):
failure.append("Lock should be held elsewhere")
return
finally:
main_thread_should_release_the_lock_barrier.wait()
if not module.timed_acquire_lock(1000000):
failure.append("Lock should have become available")
return
module.release_lock()
thread = threading.Thread(target=thread_func)
thread.start()
main_thread_should_release_the_lock_barrier.wait()
# At this point, thread_func should be waiting 1s for the lock,
# so sleep a short amount of time then let it have the lock.
time.sleep(0.01)
module.release_lock()
thread.join()
assert not failure, failure
finally:
module.cleanup_lock()
# The intr_flag isn't tested here though
@pytest.mark.skipif(only_pypy, reason='pypy only test')
@pytest.mark.xfail(reason='segfaults', run=False)
def test_tls(self):
module = self.import_extension('foo', [
("create_key", "METH_NOARGS",
"""
return PyLong_FromLong(PyThread_create_key());
"""),
("test_key", "METH_O",
"""
int key = PyLong_AsLong(args);
if (PyThread_get_key_value(key) != NULL) {
PyErr_SetNone(PyExc_ValueError);
return NULL;
}
if (PyThread_set_key_value(key, (void*)123) < 0) {
PyErr_SetNone(PyExc_ValueError);
return NULL;
}
if (PyThread_get_key_value(key) != (void*)123) {
PyErr_SetNone(PyExc_ValueError);
return NULL;
}
Py_RETURN_NONE;
"""),
])
key = module.create_key()
assert key > 0
# Test value in main thread.
module.test_key(key)
raises(ValueError, module.test_key, key)
# Same test, in another thread.
result = []
import _thread, time
def in_thread():
try:
module.test_key(key)
raises(ValueError, module.test_key, key)
except Exception as e:
result.append(e)
else:
result.append(True)
_thread.start_new_thread(in_thread, ())
while not result:
print(".")
time.sleep(.5)
assert result == [True]
def test_tss(self):
module = self.import_extension('foo', [
("tss", "METH_NOARGS",
"""
void *tss_key = NULL;
/* non-Py_LIMITED_API */
Py_tss_t _tss_key = Py_tss_NEEDS_INIT;
int the_value = 1;
if ( PyThread_tss_is_created(&_tss_key) ) {
PyErr_SetString(PyExc_AssertionError,
"tss_is_created should not succeed yet");
return NULL;
}
/* This should be a no-op */
PyThread_tss_delete(&_tss_key);
/* Py_LIMITED_API */
tss_key = PyThread_tss_alloc();
if ( PyThread_tss_is_created(tss_key) ) {
PyErr_SetString(PyExc_AssertionError,
"tss_is_created should not succeed yet");
return NULL;
}
if (PyThread_tss_create(tss_key)) {
return NULL;
}
if (! PyThread_tss_is_created(tss_key)) {
return NULL;
}
/* Be sure additional calls succeed */
if (PyThread_tss_create(tss_key)) {
return NULL;
}
if (PyThread_tss_get(tss_key) != NULL) {
PyErr_SetString(PyExc_AssertionError,
"tss_get should not succeed yet");
return NULL;
}
if (PyThread_tss_set(tss_key, (void *)&the_value)) {
PyErr_SetString(PyExc_AssertionError,
"tss_set failed");
return NULL;
}
void *val = PyThread_tss_get(tss_key);
if (val == NULL) {
PyErr_SetString(PyExc_AssertionError,
"tss_get failed");
return NULL;
}
if (the_value != *(int*)val) {
PyErr_SetString(PyExc_AssertionError,
"retrieved value is wrong");
return NULL;
}
PyThread_tss_free(tss_key);
Py_RETURN_NONE;
"""),
])
module.tss()
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