41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
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* Copyright (C) 1999 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#ifndef ISC_ONCE_H
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#define ISC_ONCE_H 1
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#include <pthread.h>
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#include <isc/lang.h>
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#include <isc/result.h>
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ISC_LANG_BEGINDECLS
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typedef pthread_once_t isc_once_t;
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#define ISC_ONCE_INIT PTHREAD_ONCE_INIT
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/* XXX We could do fancier error handling... */
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#define isc_once_do(op, f) \
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((pthread_once((op), (f)) == 0) ? \
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ISC_R_SUCCESS : ISC_R_UNEXPECTED)
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ISC_LANG_ENDDECLS
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#endif /* ISC_ONCE_H */
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