/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 * 
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 * 
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#include "nspr.h"
#include "prpriv.h"
#include "prinrval.h"

#if defined(XP_MAC)
#include "gcint.h"
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef XP_MAC
#include "gcint.h"
#include "prlog.h"
#define printf PR_LogPrint
extern void SetupMacPrintfLog(char *logFile);
#endif

PRMonitor *mon;
PRInt32 count;
PRInt32 alive;

#define SLEEP_TIME	4	/* secs */

void PR_CALLBACK
Level_2_Thread(void *arg)
{
	PR_Sleep(PR_MillisecondsToInterval(4 * 1000));
	printf("Level_2_Thread[0x%lx] exiting\n",PR_GetCurrentThread());
    return;
}

void PR_CALLBACK
Level_1_Thread(void *arg)
{
    PRUint32 tmp = (PRUint32)arg;
    PRThreadScope scope = (PRThreadScope) tmp;
    PRThread *thr;

    thr = PR_CreateThreadGCAble(PR_USER_THREAD,
                          Level_2_Thread,
                          NULL,
                          PR_PRIORITY_HIGH,
                          scope,
                          PR_JOINABLE_THREAD,
                          0);

    if (!thr) {
        printf("Could not create thread!\n");
    } else {
	printf("Level_1_Thread[0x%lx] created %15s thread 0x%lx\n",
				PR_GetCurrentThread(),
				(scope == PR_GLOBAL_THREAD) ?
				"PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD",
				thr);
        PR_JoinThread(thr);
    }
    PR_EnterMonitor(mon);
    alive--;
    PR_Notify(mon);
    PR_ExitMonitor(mon);
    printf("Thread[0x%lx] exiting\n",PR_GetCurrentThread());
}

static PRStatus PR_CALLBACK print_thread(PRThread *thread, int i, void *arg)
{
PRInt32 words;
PRWord *registers;

	printf(
	    "\nprint_thread[0x%lx]: %-20s - i = %ld\n",thread, 
		(PR_GLOBAL_THREAD == PR_GetThreadScope(thread)) ?
		"PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD", i);
	registers = PR_GetGCRegisters(thread, 0, (int *)&words);
	printf("Regsters R0 = 0x%x R1 = 0x%x R2 = 0x%x R3 = 0x%x\n",
						registers[0],registers[1],registers[2],registers[3]);
	printf("Stack Pointer = 0x%lx\n", PR_GetSP(thread));
	return PR_SUCCESS;
}

static void Level_0_Thread(PRThreadScope scope1, PRThreadScope scope2)
{
    PRThread *thr;
    PRThread *me = PR_GetCurrentThread();
    int n;
	PRInt32 words;
	PRWord *registers;

    alive = 0;
    mon = PR_NewMonitor();

    alive = count;
    for (n=0; n<count; n++) {
        thr = PR_CreateThreadGCAble(PR_USER_THREAD,
                              Level_1_Thread, 
                              (void *)scope2, 
                              PR_PRIORITY_NORMAL,
                              scope1,
                              PR_UNJOINABLE_THREAD,
                              0);
        if (!thr) {
            printf("Could not create thread!\n");
            alive--;
        }
	printf("Level_0_Thread[0x%lx] created %15s thread 0x%lx\n",
				PR_GetCurrentThread(),
				(scope1 == PR_GLOBAL_THREAD) ?
				"PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD",
				thr);
         
        PR_Sleep(0);
    }
    PR_SuspendAll();
    PR_EnumerateThreads(print_thread, NULL);
	registers = PR_GetGCRegisters(me, 1, (int *)&words);
	printf("My Registers: R0 = 0x%x R1 = 0x%x R2 = 0x%x R3 = 0x%x\n",
						registers[0],registers[1],registers[2],registers[3]);
	printf("My Stack Pointer = 0x%lx\n", PR_GetSP(me));
    PR_ResumeAll();

    /* Wait for all threads to exit */
    PR_EnterMonitor(mon);
    while (alive) {
        PR_Wait(mon, PR_INTERVAL_NO_TIMEOUT);
    }

    PR_ExitMonitor(mon);
    PR_DestroyMonitor(mon);
}

static void CreateThreadsUU(void)
{
    Level_0_Thread(PR_LOCAL_THREAD, PR_LOCAL_THREAD);
}

static void CreateThreadsUK(void)
{
    Level_0_Thread(PR_LOCAL_THREAD, PR_GLOBAL_THREAD);
}

static void CreateThreadsKU(void)
{
    Level_0_Thread(PR_GLOBAL_THREAD, PR_LOCAL_THREAD);
}

static void CreateThreadsKK(void)
{
    Level_0_Thread(PR_GLOBAL_THREAD, PR_GLOBAL_THREAD);
}


void
main(int argc, char **argv)
{
	PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
    PR_STDIO_INIT();

#ifdef XP_MAC
	SetupMacPrintfLog("suspend.log");
#endif

	if (argc > 1) {
		count = atoi(argv[1]);
	} else {
		count = 5;
	}

	printf("\n\n%20s%30s\n\n"," ","Suspend_Resume Test");
    CreateThreadsUU();
    CreateThreadsUK();
    CreateThreadsKU();
    CreateThreadsKK();
	PR_SetConcurrency(2);

	printf("\n%20s%30s\n\n"," ","Added 2nd CPU\n");

    CreateThreadsUK();
    CreateThreadsKK();
    CreateThreadsUU();
    CreateThreadsKU();
    PR_Cleanup();
}
