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38 lines
921 B
C
38 lines
921 B
C
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/*
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PURPOSE:
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(This header file defines the "RELEASE()" macro for supported platforms.
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The release function should yield the processor from the processes that
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makes the call. This allows the UNIX schedular to arbitrate process
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priorities during spinloops based on the status of processes waiting
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to run)
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PROGRAMMER:
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(((Eddie J. Paddock ) (LinCom) (2/96) (--) (Realtime))
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((Scott Killingsworth ) (LinCom) (October 1997) (OSF1 port) (Issue #1233)))
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*/
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#ifndef RELEASE_H
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#define RELEASE_H
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#if __sgi
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#define RELEASE() sginap(0)
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#define RELEASE_1() sginap(1)
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#elif __vxworks
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#define RELEASE() taskDelay(1)
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#define RELEASE_1() taskDelay(1)
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#else
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#include <time.h>
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#define RELEASE() { struct timespec timeout;\
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timeout.tv_sec = 0;\
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timeout.tv_nsec = 0;\
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nanosleep(&timeout, NULL);}
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#define RELEASE_1() RELEASE()
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#endif
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#endif
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