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Issue #16113: integrade SHA-3 (Keccak) patch from http://hg.python.org/sandbox/cheimes

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Christian Heimes 2012-10-06 02:23:36 +02:00
parent 8c6db45d3e
commit 4a0270d82b
30 changed files with 7971 additions and 28 deletions
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33
Modules/hashlib.h
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@ -26,3 +26,36 @@
return NULL; \
} \
} while(0);
/*
* Helper code to synchronize access to the hash object when the GIL is
* released around a CPU consuming hashlib operation. All code paths that
* access a mutable part of obj must be enclosed in a ENTER_HASHLIB /
* LEAVE_HASHLIB block or explicitly acquire and release the lock inside
* a PY_BEGIN / END_ALLOW_THREADS block if they wish to release the GIL for
* an operation.
*/
#ifdef WITH_THREAD
#include "pythread.h"
#define ENTER_HASHLIB(obj) \
if ((obj)->lock) { \
if (!PyThread_acquire_lock((obj)->lock, 0)) { \
Py_BEGIN_ALLOW_THREADS \
PyThread_acquire_lock((obj)->lock, 1); \
Py_END_ALLOW_THREADS \
} \
}
#define LEAVE_HASHLIB(obj) \
if ((obj)->lock) { \
PyThread_release_lock((obj)->lock); \
}
#else
#define ENTER_HASHLIB(obj)
#define LEAVE_HASHLIB(obj)
#endif
/* TODO(gps): We should probably make this a module or EVPobject attribute
* to allow the user to optimize based on the platform they're using. */
#define HASHLIB_GIL_MINSIZE 2048