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gh-111569: Fix critical sections test on WebAssembly#111897

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Merged
brettcannon merged 3 commits intopython:mainfromcolesbury:critical_sections-wasm
Nov 9, 2023
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Go back to Py_CAN_START_THREADS
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@colesbury
colesbury committedNov 9, 2023
commit2ac2321dda2f51f7bc00ffa3a51e6dda51a5e368
8 changes: 8 additions & 0 deletionsInclude/pyport.h
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Original file line numberDiff line numberDiff line change
Expand Up@@ -470,6 +470,14 @@ extern "C" {
# define WITH_THREAD
#endif

/* Some WebAssembly platforms do not provide a working pthread implementation.
* Thread support is stubbed and any attempt to create a new thread fails.
*/
#if (!defined(HAVE_PTHREAD_STUBS) && \
(!defined(__EMSCRIPTEN__) || defined(__EMSCRIPTEN_PTHREADS__)))
# define Py_CAN_START_THREADS 1
#endif

#ifdef WITH_THREAD
# ifdef Py_BUILD_CORE
# ifdef HAVE_THREAD_LOCAL
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4 changes: 2 additions & 2 deletionsModules/_testinternalcapi/test_critical_sections.c
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Expand Up@@ -170,7 +170,7 @@ thread_critical_sections(void *arg)
}
}

#ifndef HAVE_PTHREAD_STUBS
#ifdef Py_CAN_START_THREADS
static PyObject *
test_critical_sections_threads(PyObject *self, PyObject *Py_UNUSED(args))
{
Expand DownExpand Up@@ -201,7 +201,7 @@ static PyMethodDef test_methods[] = {
{"test_critical_sections", test_critical_sections, METH_NOARGS},
{"test_critical_sections_nest", test_critical_sections_nest, METH_NOARGS},
{"test_critical_sections_suspend", test_critical_sections_suspend, METH_NOARGS},
#ifndef HAVE_PTHREAD_STUBS
#ifdef Py_CAN_START_THREADS
{"test_critical_sections_threads", test_critical_sections_threads, METH_NOARGS},
#endif
{NULL, NULL} /* sentinel */
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