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pause.c,v
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1988-12-31
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3KB
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125 lines
head 1.2;
branch ;
access ;
symbols ;
locks ; strict;
comment @ * @;
1.2
date 88.12.31.12.26.17; author ouster; state Exp;
branches ;
next 1.1;
1.1
date 88.06.19.14.31.39; author ouster; state Exp;
branches ;
next ;
desc
@@
1.2
log
@Simplify so as not to need compatibility routines or Sprite kernel calls.
@
text
@/*
* pause.c --
*
* Source for "pause" library procedure.
*
* Copyright (C) 1986, 1989 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: pause.c,v 1.1 88/06/19 14:31:39 ouster Exp $ SPRITE (Berkeley)";
#endif not lint
/*
*----------------------------------------------------------------------
*
* pause --
*
* Go to sleep until a signal is received.
*
* Results:
* Always returns -1, with errno set to EINTR.
*
* Side effects:
* The process waits until a non-masked signal is received.
*
*----------------------------------------------------------------------
*/
int
pause()
{
return sigpause(sigblock(0));
}
@
1.1
log
@Initial revision
@
text
@d4 1
a4 1
* Procedure to map from Unix pause system call to Sprite.
d6 8
a13 2
* Copyright (C) 1986 Regents of the University of California
* All rights reserved.
d17 1
a17 1
static char rcsid[] = "$Header: pause.c,v 1.1 86/04/17 15:20:52 douglis Exp $ SPRITE (Berkeley)";
a19 7
#include "sprite.h"
#include "sig.h"
#include "compatInt.h"
#include <signal.h>
#include <errno.h>
d26 1
a26 3
* Procedure to map from Unix pause system call to Sprite Sig_Pause.
* Since the Unix version doesn't take a signal hold mask, we need
* to get the current mask and pass it in to Sig_Pause.
d29 1
a29 1
* Pause always returns UNIX_ERROR with errno set to EINTR.
d40 1
a40 18
int currentMask; /* placeholder for signal mask */
ReturnStatus status; /* generic result code */
status = Compat_GetSigHoldMask(¤tMask);
if (status == FAILURE) {
errno = Compat_MapCode(status);
return(UNIX_ERROR);
}
status = Sig_Pause(currentMask);
if (status != SUCCESS) {
errno = Compat_MapCode(status);
return(UNIX_ERROR);
} else {
/*
* should Sig_Pause ever return SUCCESS?
*/
return(UNIX_SUCCESS);
}
@