78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/*
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* Python Bindings for LZMA
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*
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* Copyright (c) 2004-2006 by Joachim Bauch, mail@joachim-bauch.de
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* 7-Zip Copyright (C) 1999-2005 Igor Pavlov
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* LZMA SDK Copyright (C) 1999-2005 Igor Pavlov
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: pylzma.h 104 2006-01-08 18:17:14Z jojo $
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*
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*/
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#ifndef ___PYLZMA__H___
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#define ___PYLZMA__H___
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#include <Python.h>
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#ifndef min
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#define min(a, b) ((a) < (b) ? (a) : (b))
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#endif
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#define BLOCK_SIZE 65536
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#define CHECK_NULL(a) if ((a) == NULL) { PyErr_NoMemory(); goto exit; }
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#define DEC_AND_NULL(a) { Py_XDECREF(a); a = NULL; }
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#define DELETE_AND_NULL(a) if (a != NULL) { delete a; a = NULL; }
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#define FREE_AND_NULL(a) if (a != NULL) { free(a); a = NULL; }
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#define CHECK_RANGE(x, a, b, msg) if ((x) < (a) || (x) > (b)) { PyErr_SetString(PyExc_ValueError, msg); goto exit; }
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#if defined(WITH_THREAD)
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/* For Python 2.3 and above, use the PyGILState_ calls */
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#if (PY_VERSION_HEX >= 0x02030000)
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#define PYLZMA_USE_GILSTATE
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#endif
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#if defined(PYLZMA_USE_GILSTATE)
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// Python 2.3 and above
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#define START_BLOCK_THREADS \
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PyGILState_STATE __savestate = PyGILState_Ensure();
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#define END_BLOCK_THREADS \
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PyGILState_Release(__savestate);
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#else
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// Before Python 2.3
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PyInterpreterState* _pylzma_interpreterState;
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#define START_BLOCK_THREADS { \
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PyThreadState* prevState; \
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PyThreadState* newState; \
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PyEval_AcquireLock(); \
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newState = PyThreadState_New(_pylzma_interpreterState);\
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prevState = PyThreadState_Swap(newState);
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#define END_BLOCK_THREADS \
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newState = PyThreadState_Swap(prevState); \
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PyThreadState_Clear(newState); \
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PyEval_ReleaseLock(); \
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PyThreadState_Delete(newState); \
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}
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#endif
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#else // WITH_THREADS
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#define START_BLOCK_THREADS
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#define END_BLOCK_THREADS
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#endif
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#endif
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