/*-
 * Copyright (c) 1980, 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
// signal.h: signal emulation things
// -amol
//
#ifndef SIGNAL_H
#define SIGNAL_H


#define NSIG 23     

// These must be CTRL_xxx_EVENT+1 (in wincon.h)
//
#define SIGINT		1 
#define SIGBREAK 	2
#define SIGHUP		3 //CTRL_CLOSE_EVENT
// 3 and 4 are reserved. hence we can't use 4 and 5
#define	SIGTERM		6 // ctrl_logoff
#define SIGKILL		7 // ctrl_shutdown

#define SIGILL		8 
#define SIGFPE		9	
#define SIGALRM		10
//#define SIGWINCH	11
#define SIGSEGV 	12	
#define SIGSTOP 	13
#define SIGPIPE 	14
#define SIGCHLD 	15
#define SIGCONT		16 
#define SIGTSTP 	18
#define SIGTTOU 	19
#define SIGTTIN 	20
#define SIGABRT 	22	

#define SIGQUIT SIGBREAK

/* signal action codes */

#define SIG_DFL (void (*)(int))IntToPtr(0)   /* default signal action */
#define SIG_IGN (void (*)(int))IntToPtr(1)   /* ignore signal */
#define SIG_SGE (void (*)(int))IntToPtr(3)   /* signal gets error */
#define SIG_ACK (void (*)(int))IntToPtr(4)   /* acknowledge */


/* signal error value (returned by signal call on error) */

#define SIG_ERR (void (*)(int))IntToPtr(-1)   /* signal error value */


#define SIG_BLOCK 0
#define SIG_UNBLOCK 1
#define SIG_SETMASK 2

#undef signal
#define signal _nt_signal

typedef unsigned long sigset_t;
typedef void Sigfunc (int);

struct sigaction {
	Sigfunc *sa_handler;
	sigset_t sa_mask;
	int sa_flags;
};


#define sigemptyset(ptr) (*(ptr) = 0)
#define sigfillset(ptr)  ( *(ptr) = ~(sigset_t)0,0)


/* Function prototypes */

void (* _nt_signal(int, void (*)(int)))(int);

int sigaddset(sigset_t*, int);
int sigdelset(sigset_t*,int);
unsigned int alarm(unsigned int);

int sigismember(const sigset_t *set, int);
int sigprocmask(int ,const sigset_t*,sigset_t*);
int sigaction(int, const struct sigaction *, struct sigaction*);
int sigsuspend(const sigset_t *sigmask);

#define WNOHANG 0
#define WUNTRACED 1

#define WIFEXITED(a) 1
#define WEXITSTATUS(a) (a)
//#define WIFSIGNALED(a) ((a!= -1)&&(((((unsigned long)(a)) >>24) & 0xC0)!=0))
#define WIFSIGNALED(a) ((a !=-1)&&((((unsigned long)(a)) & 0xC0000000 ) != 0))
#define WTERMSIG(a) (((unsigned long)(a))==0xC000013AL?SIGINT:SIGSEGV)
#define WCOREDUMP(a) 0
#define WIFSTOPPED(a) 0
#define WSTOPSIG(a) 0

int waitpid(pid_t, int*,int);
int times(struct tms*);
  
#endif SIGNAL_H