mirror of https://github.com/GnoConsortium/gno.git
21 lines
514 B
C
21 lines
514 B
C
/* $Id: sem.h,v 1.1 1998/02/02 08:18:54 taubert Exp $ */
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/* sem.h - semaphore definitions */
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#if NSEM
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#define SFREE 1 /* free semaphore */
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#define SUSED 2 /* semaphore in use */
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struct sentry { /* semaphore table entry */
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char sstate; /* SFREE or SUSED */
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short semcnt; /* semaphore count, (i.e. value) */
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unsigned squeue; /* process queue id */
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};
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extern struct sentry *_semaph;
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/*extern struct sentry _semaph[];*/
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#define isbadsem(s) (s<0 || s>=NSEM)
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void semINTR(int sem, int mpid);
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#endif
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