54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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/* @(#)semshm.h 1.6 08/08/03 Copyright 1998,1999 Heiko Eissfeldt */
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#ifndef _SEMSHM_H
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#define _SEMSHM_H
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#undef DEBUG_SHM
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#ifdef DEBUG_SHM
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extern char *start_of_shm;
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extern char *end_of_shm;
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#endif
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#define FREE_SEM 0
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#define DEF_SEM 1
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#if defined(HAVE_SEMGET) && defined(USE_SEMAPHORES)
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extern int sem_id;
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#else
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#define sem_id 42 /* nearly any other number would do it too */
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extern void init_pipes __PR((void));
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extern void init_parent __PR((void));
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extern void init_child __PR((void));
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#endif
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#ifdef HAVE_AREAS
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/*
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* The name of the shared memory mapping for the FIFO under BeOS.
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*/
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#define AREA_NAME "shmfifo"
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#endif
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extern void free_sem __PR((void));
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extern int semrequest __PR((int semid, int semnum));
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extern int semrelease __PR((int semid, int semnum, int amount));
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extern void semdestroy __PR((void));
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extern int flush_buffers __PR((void));
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extern void * request_shm_sem __PR((unsigned amount_of_sh_mem, unsigned char **pointer));
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#endif /* _SEMSHM_H */
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