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52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
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/*
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* Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* These are common definitions for architectures on which test_and_set
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* operates on byte sized quantities, the "clear" value contains
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* all zeroes, and the "set" value contains all ones typically.
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*/
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#ifndef AO_GCC_ATOMIC_TEST_AND_SET
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# define AO_TS_SET_TRUEVAL 0xff
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#elif defined(__GCC_ATOMIC_TEST_AND_SET_TRUEVAL) \
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&& !defined(AO_PREFER_GENERALIZED)
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# define AO_TS_SET_TRUEVAL __GCC_ATOMIC_TEST_AND_SET_TRUEVAL
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#else
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# define AO_TS_SET_TRUEVAL 1 /* true */
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#endif
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typedef enum {
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AO_BYTE_TS_clear = 0,
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AO_BYTE_TS_set = AO_TS_SET_TRUEVAL
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} AO_BYTE_TS_val;
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#define AO_TS_VAL_t AO_BYTE_TS_val
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#define AO_TS_CLEAR AO_BYTE_TS_clear
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#define AO_TS_SET AO_BYTE_TS_set
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#define AO_TS_t unsigned char
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#define AO_CHAR_TS_T 1
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#undef AO_TS_SET_TRUEVAL
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