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bpo-32043: New "developer mode": "-X dev" option (#4413)

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Add a new "developer mode": new "-X dev" command line option to
enable debug checks at runtime.

Changes:

* Add unit tests for -X dev
* test_cmd_line: replace test.support with support.
* Fix _PyRuntimeState_Fini(): Use the same memory allocator
   than _PyRuntimeState_Init().
* Fix _PyMem_GetDefaultRawAllocator()
This commit is contained in:
Victor Stinner 2017-11-16 03:20:31 -08:00 • committed by GitHub
parent 05cb728d68
commit ccb0442a33
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7 changed files with 110 additions and 25 deletions
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Python/pystate.c
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@ -64,10 +64,18 @@ _PyRuntimeState_Init(_PyRuntimeState *runtime)
void
_PyRuntimeState_Fini(_PyRuntimeState *runtime)
{
/* Use the same memory allocator than _PyRuntimeState_Init() */
PyMemAllocatorEx old_alloc, raw_alloc;
PyMem_GetAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
_PyMem_GetDefaultRawAllocator(&raw_alloc);
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &raw_alloc);
if (runtime->interpreters.mutex != NULL) {
PyThread_free_lock(runtime->interpreters.mutex);
runtime->interpreters.mutex = NULL;
}
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
}
#define HEAD_LOCK() PyThread_acquire_lock(_PyRuntime.interpreters.mutex, \