/*
Copyright (c) 1993 Xerox Corporation.  All rights reserved.
*/
/*
$Id$

$Date$
*/

#ifndef __PCR_SigPvt_h
#   define __PCR_SigPvt_h 1

#include <config/PCR_StdTypes.h>
#include <sig/PCR_SigTypes.h>
#include <th/PCR_ThData.h>
#include <th/PCR_ThTypes.h>
#include <th/PCR_ThPvt.h>

#ifndef PCR_NO_RENAME
#   ifdef NSIG
#       error
#   endif
#else
#   ifndef NSIG
#       include <host/signal.h>
#   endif
#endif

/*
 * Mapping between host and PCR signal numbers
 */

typedef unsigned long PCR_SigPvt_ST;	/* signal type */

/* resumable or terminal */
# define PCR_SigPvt_ST_rMask	0x1
#   define PCR_SigPvt_ST_rBit	0x1	/* resumable */

/* trap or interrupt */
# define PCR_SigPvt_ST_sMask	0x2
#   define PCR_SigPvt_ST_sBit	0x2	/* synchronous */

/* Unix default action */
# define PCR_SigPvt_ST_dMask	0xc
#   define PCR_SigPvt_ST_de	0x0	/* default is exit */
#   define PCR_SigPvt_ST_di	0x4	/* default is ignore */
#   define PCR_SigPvt_ST_dp	0x8	/* default is pause */
#   define PCR_SigPvt_ST_dc	0xc	/* default is continue */

/* can sig be caught/ignored? */
# define PCR_SigPvt_ST_ncMask	0x10
#   define PCR_SigPvt_ST_ncBit	0x10	/* not catchable */


struct PCR_SigPvt_SigMapEntryRep {
    int sme_pcr;		/* PCR sig num */
    int sme_host;		/* host sig num */
    PCR_SigPvt_ST sme_st;	/* sig type (see above) */
};

typedef struct PCR_SigPvt_SigMapEntryRep PCR_SigPvt_SigMapEntry;

extern PCR_SigPvt_SigMapEntry PCR_SigPvt_sigMap[];

extern PCR_SigPvt_SigMapEntry *(PCR_SigPvt_pcrToMapEntry[1+PCR_NSIG]);

extern PCR_SigPvt_SigMapEntry *(PCR_SigPvt_hostToMapEntry[1+NSIG]);

/*
 * Per-thread signal info 
 */

struct PCR_SigPvt_ThSigInfoRep {
    struct PCR_Th_CVRep tsi_contCV; /* SIGSTOP/SIGCONT */
    PCR_sigset_t tsi_shrActionSet;
    struct PCR_Sig_ActionRep tsi_shrAction;
    struct PCR_Sig_ActionRep tsi_action[1+PCR_NSIG];
};

typedef struct PCR_SigPvt_ThSigInfoRep PCR_SigPvt_ThSigInfo;

#define PCR_SigPvt_currThreadSigInfo (*( (PCR_SigPvt_ThSigInfo **) \
	(&( PCR_ThData_Get()->td__sigData )) ))


/*
 * Host signal handlers ... wizards only!
 */

extern void PCR_SigPvtImpl_InstallHostSigHandler(int hostsig);

extern void PCR_SigPvtImpl_InstallHostSigIgnorer(int hostsig);

extern void PCR_SigPvtImpl_InstallHostSigDefault(int hostsig);

#endif /* !__PCR_SigPvt_h */
/*
$Log$
*/