C++ sleep函数代码示例

static void
test_read_and_write_complex_types (void)
{
  int status;
  pid_t pid;
  ThriftSocket *tsocket = NULL;
  ThriftTransport *transport = NULL;
  ThriftCompactProtocol *tc = NULL;
  ThriftProtocol *protocol = NULL;
  int port = TEST_PORT;

  /* fork a server from the client */
  pid = fork ();
  assert (pid >= 0);

  if (pid == 0)
  {
    /* child listens */
    thrift_server_complex_types (port);
    exit (0);
  } else {
    /* parent.  wait a bit for the socket to be created. */
    sleep (1);

    /* create a ThriftSocket */
    tsocket = g_object_new (THRIFT_TYPE_SOCKET, "hostname", "localhost",
                            "port", port, NULL);
    transport = THRIFT_TRANSPORT (tsocket);
    thrift_transport_open (transport, NULL);
    assert (thrift_transport_is_open (transport));

    /* create a ThriftCompactTransport */
    tc = g_object_new (THRIFT_TYPE_COMPACT_PROTOCOL, "transport",
                       tsocket, NULL);
    protocol = THRIFT_PROTOCOL (tc);
    assert (protocol != NULL);

    /* test structures */
    assert (thrift_compact_protocol_write_struct_begin (protocol,
                                                       NULL, NULL) == 0);
    assert (thrift_compact_protocol_write_struct_end (protocol, NULL) == 0);

    /* test field state w.r.t. deltas */

    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE, 1, NULL) == 1);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       16, NULL) == 1);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       17, NULL) == 1);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       15, NULL) > 1);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       30, NULL) == 1);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       46, NULL) > 1);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       47, NULL) == 1);

    /* test fields */
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       1, NULL) > 1);
    assert (thrift_compact_protocol_write_field_end (protocol, NULL) == 0);

    /* test field state w.r.t. structs */

    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       1, NULL) > 1);
    assert (thrift_compact_protocol_write_field_end (protocol, NULL) == 0);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       16, NULL) == 1);
    assert (thrift_compact_protocol_write_field_end (protocol, NULL) == 0);

    assert (thrift_compact_protocol_write_struct_begin (protocol,
                                                       NULL, NULL) == 0);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       17, NULL) > 1);
    assert (thrift_compact_protocol_write_field_end (protocol, NULL) == 0);

    assert (thrift_compact_protocol_write_struct_begin (protocol,
                                                       NULL, NULL) == 0);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       18, NULL) > 1);
    assert (thrift_compact_protocol_write_field_end (protocol, NULL) == 0);
    assert (thrift_compact_protocol_write_field_begin (protocol, "test",
                                                       T_DOUBLE,
                                                       19, NULL) == 1);
    assert (thrift_compact_protocol_write_field_end (protocol, NULL) == 0);
    assert (thrift_compact_protocol_write_struct_end (protocol, NULL) == 0);
//.........这里部分代码省略.........

int main(int argc, char *argv[]) {
    int server_coid, self_coid, chid, rcvid;
    struct reg_msg msg;

    setvbuf (stdout, NULL, _IOLBF, 0);

    /* look for server */
    server_coid = name_open( RECV_NAME, 0 );
    while( server_coid == -1 )
    {
        sleep(1);
        server_coid = name_open( RECV_NAME, 0 );
    }

    chid = ChannelCreate(0);
    if( -1 == chid)
    {
        perror( PROGNAME "ChannelCreate");
        exit( EXIT_FAILURE );
    }
    self_coid = ConnectAttach( 0, 0, chid, _NTO_SIDE_CHANNEL, 0 );
    if( -1 == self_coid )
    {
        perror( PROGNAME "ConnectAttach");
        exit( EXIT_FAILURE );
    }

    msg.type = REG_MSG;

    /* class: Initialize the sigevent structure (msg.ev) in the message
     * to be sent to the server.
     */

    if (MsgSend( server_coid, &msg, sizeof( msg ), NULL, 0 ) == -1)
    {
        perror(PROGNAME "MsgSend");
        exit( EXIT_FAILURE );
    }

    while( 1 )
    {
        rcvid = MsgReceive( chid, &recv_buf, sizeof(recv_buf), NULL );
        if( -1 == rcvid )
        {
            perror(PROGNAME "MsgReceive");
            continue;
        }
        if ( 0 == rcvid )
        {
            if (MY_PULSE_CODE == recv_buf.pulse.code )
            {
                printf(PROGNAME "got my pulse\n");
            } else
            {
                printf(PROGNAME "got unexpected pulse with code %d\n",
                       recv_buf.pulse.code );
            }
            continue;
        }
        printf(PROGNAME "got unexpected message, type: %d\n", recv_buf.type );
        MsgError( rcvid, ENOSYS );
    }
}

int main (int argc, char *argv[]){

///altre variabili
	int cont = 0;           ///contatore che tiene conto delle cpu, serve per fare cont di fork di processori


 ///variabili pthread_create
	int statusThread;
	int statusRam;

/// converto i dati in ingresso forniti dall'utente
	numCpu = atoi(argv[1]);
	ramDim = atoi(argv[2]);

///una stampa a video per avvertire che i dati immessi dall'utente sono stati acquisiti
	if(write(1,"Ho acquisito il numero di processori e la memoria della ram\n",61) == -1) {
		write(2,"Write fallita\n",15);
		exit(1);
    }


    ///variabili thread
    pthread_t threads[numCpu + 1];       /// per tenere traccia degli identificatori delle thread
	int *buffers = (int*) malloc((sizeof (int)) * 3);

    ///inizializzo i semafori
    if(pthread_mutex_init(&mutexRam, NULL) != 0){
        write(2,"Init fallita\n",14);
		exit(1);
    }
    if(pthread_mutex_init(&mutexProc, NULL) != 0){
        write(2,"Init fallita\n",14);
		exit(1);
    }
    if(pthread_mutex_init(&mutexAllProc, NULL) != 0){
        write(2,"Init fallita\n",14);
		exit(1);
    }

    if(pthread_mutex_lock(&mutexRam) != 0){
        write(2,"Lock fallita\n",14);
		exit(1);
    }
///valore per far terminare la ram, se 0 non eseguirà mai l'if, se 1 lo esegue ed esce
    killRam = 0;

///alloco mememoria e inizializzo le variabili della struct che passarò come argomento quando farò la pthread_create
	struttura *parametri = (struttura *)malloc(sizeof(struttura));
    parametri->ramDim = ramDim;
	parametri->buffer = buffers;


///Creo la thread della ram
    if((statusRam = pthread_create(&threads[0], NULL, ram, parametri)) != 0){
      write(2,"Non sono riuscito a creare la thread della Ram\n",48);
      exit(1);
    }

    sleep(1);   ///aspetto un secondo affinchè la ram posso inizializzare tutti i dati e fermarsi al semaforo in attesa di essere sbloccata
///Creo i numCpu thread
    while(cont < numCpu) {
		struttura *p = (struttura *)malloc(sizeof(struttura));
        p->nProc = cont;
		p->buffer = buffers;
        if((statusThread = pthread_create(&threads[cont + 1], NULL, processore2, p)) != 0) {
            write(2,"Non sono riuscito a creare la thread\n",38);
            exit(1);
        }
        cont++;
    }


///il processo padre aspetta che tutti le thread figlie terminino per poter terminare pure lui
	for(cont = 0; cont < numCpu; cont++)
		if(pthread_join(threads[cont + 1], NULL) != 0){
        write(2,"Join fallita\n",14);
        exit(1);
    }

    killRam = 1;
    if(pthread_mutex_unlock(&mutexRam) != 0){
        write(2,"Unlock fallita\n",16);
        exit(1);
    }
    if(pthread_join(threads[0], NULL) != 0){
        write(2,"Join fallita\n",14);
        exit(1);
    }

    int i;
    ///distruggo i semafori
    if((i = pthread_mutex_destroy(&mutexRam)) != 0){
        //write(2,"Destroy fallita\n",17);
		exit(1);
    }

    if((i = pthread_mutex_destroy(&mutexProc)) != 0){
        write(2,"Destroy fallita\n",17);
		exit(1);
    }
//.........这里部分代码省略.........

void Socket::socketThread() {
    Json::Reader reader;
    
	bool running = true;
    int addrinfo_status, connect_status, socket_status = 0;
    
	while ( running ) {
        
		
        
		if ( !socketfd || socket_status ) {
			struct addrinfo host_info;
			struct addrinfo *host_info_list;
            
			// Close the existing socket, if it has been left open.
			if ( socketfd ) {
				close( socketfd );
				socketfd = NULL;
			}
            
			// Establish connection
			memset( &host_info, 0, sizeof host_info );
            
			host_info.ai_family = AF_UNSPEC;
			host_info.ai_socktype = SOCK_STREAM;
            
			addrinfo_status = getaddrinfo( hostname, port, &host_info, &host_info_list );
            
			if ( addrinfo_status ) {
				std::cout << "couldn't get address" << std::endl ;
				sleep(1);
				continue;
			}
            
			socketfd = socket( host_info_list->ai_family, host_info_list->ai_socktype, host_info_list->ai_protocol );
            
			if ( socketfd == -1 ) {
				socket_status = -1;
				std::cout << "socket error" << std::endl ;
				sleep(1);
				continue;
			}
            
			connect_status = connect( socketfd, host_info_list->ai_addr, host_info_list->ai_addrlen );
            
			if ( connect_status ) {
				socket_status = -1;
				std::cout << "connect error" << std::endl ;
				sleep(1);
				continue;
			}
            
			socket_status = 0;
		}
        
		int max_message_size = 1000000;
        
		ssize_t bytes_recieved;
        
		struct hss_header header;
		string buffer;
        
		bytes_recieved = recv( socketfd, &header, sizeof header, 0 );
		
		//std::cout << "received " << bytes_recieved << std::endl;
        
		if ( bytes_recieved == sizeof header ) {
            
			// Parse the header ( what there is of it )
			header.string_bytes = ntohl( header.string_bytes );
            
			if ( header.string_bytes > max_message_size ) {
				// Bad header, fuck it.
				socket_status = -3;
				std::cout << "bad header, disconnecting";
				continue;
			}
            
			buffer.resize( header.string_bytes );
            
			size_t b = recv( socketfd, (void * ) buffer.c_str(), header.string_bytes, MSG_WAITALL );
            
			if ( b != header.string_bytes ) {
                
			}
            
            Json::Value msg;
            
			//std::cout << buffer << std::endl;
            reader.parse( buffer, msg );
            
            Json::Value set = msg["set"];
            if ( set.isObject() ) {
                
                Json::Value set = msg["set"];
                for ( Json::ValueIterator i = set.begin(); i != set.end(); i ++ ) {
                    string k = (string) i.memberName();
                    horten->set( set[k], k, flags );
                }
            }
//.........这里部分代码省略.........

shellcmd xsh_suspend( int nargs, char *args[] )
{
    tid_typ tid;	/* tid for thread to suspend */

    /* Output help, if '--help' argument was supplied */
    if( nargs == 2 && strncmp( args[1], "--help", 7 ) == 0)
    {
        printf("Usage: %s <TID>\n\n", args[0]);
        printf("Description:\n");
        printf("\tSuspends thread with the identifier TID.\n");
        printf("Options:\n");
        printf("\t<TID>\tID of thread to suspend.\n");
        printf("\t--help\tdisplay this help and exit\n");
        return 0;
    }

    /* Check for correct number of arguments */
    if( nargs < 2 )
    {
    	fprintf(stderr, "%s: missing operand\n", args[0]);
    	fprintf(stderr, "Try '%s --help' for more information.\n", args[0]);

    	return 1;
    }

    if( nargs > 2 )
    {
    	fprintf(stderr, "%s: too many arguments.\n", args[0]);
    	fprintf(stderr, "Try '%s --help' for more information.\n", args[0]);

    	return 1;
    }

    tid = atoi( args[1] );

    /* Don't try to suspend a null thread */
    if( tid == NULLTHREAD )
    {
    	fprintf( stderr, "%s: (%d) Operation not permitted.\n", args[0], tid);

    	return 1;
    }


   	 //If shell is being suspended, print notice to shell. 
   	 if( tid == gettid() )
   	 {
		fprintf( stderr, "%s: Shell suspended.\n", args[0] );
       		sleep(2000);
    	 }

   	 //Suspend thread, nothing is suspend failed. 
   	 if( suspend( tid ) == SYSERR )
    	{
    		fprintf( stderr, "%s : (%d) No such thread.\n", args[0], tid);
    		return -1;
    	}

    return 0;

}

//---------------------------------------------------
//    自动返回控制器器IP主函数
//---------------------------------------------------
//int main(int argc, char *argv[])
int configpalen_ipdetaup(void)
{
    int s_fd=0;
    int ret = 0;
    int i = 0;
    unsigned char sys_id[6];
    unsigned char buf[64];
    unsigned char request_buf[13];
    unsigned char h_ip[4];
    unsigned char s_ip[16];
    unsigned char s_gw[16];
    //unsigned char *ip="192.172.1.125";
    unsigned char setip[32] = "ifconfig eth0 ";
    int s_len = strlen(setip);

    unsigned char setgw[64] = "route add default gw ";
    int g_len = strlen(setgw);

    unsigned char k_ip[4];
    unsigned char smk[6];
    int sys_id_flag = 0;

    read_identifier(sys_id);//读取identifier.ini中保存的信息

    request_buf[0] = CAM_TYPE_TOP1;
    request_buf[1] = CAM_TYPE_TOP2;
    request_buf[2] = CAM_TYPE_REPLY;
    memcpy(request_buf+3, sys_id, 6);

    unsigned char versionbuf[2];

    //获取系统本身IP

    //ret = save_system_ip(ip, strlen(ip));

    ret = read_txt_ip(s_ip, h_ip);//读取systemip.ini中的信息
    if(ret < 0)
    {
        //获取文本的IP错误
        printf("read system ip file error!!!\n");
        GetIP_v4_and_v6_linux(AF_INET,s_ip,16);        //获取系统的IP
        ret = save_system_ip(s_ip, strlen(s_ip));
    }

    /*//printf("s_ip=%s\n",s_ip);
    memcpy(setip+s_len, s_ip, strlen(s_ip)+1);
    printf("set ip:%s\n",setip);

    system(setip);//还进行了设置。

    myread_txt_ip(s_gw, h_ip);
    memcpy(setgw+g_len, s_gw, strlen(s_gw)+1);
    printf("set gateway:%s\n",setgw);
    system(setgw);*/


    s_fd = make_send_multicast_init(s_ip);    //创建主播发送字符,只使用一个套接字也完全可以的。ghf

    socklen_t  len=sizeof(addr);
    extern int errno;

    static int val=0;



    cpufd = open("/dev/cpu_led",O_RDONLY);
    if (cpufd < 0)
    {
        system("insmod cpu_led.ko");
        sleep(2);
        cpufd = open("/dev/cpu_led",O_RDONLY);
        if (cpufd < 0){
            printf("error,open device cpu_led!!!\n");
        }
    }
    else{
        printf("open device cpu_led!!!\n");
    }

    //此接口走路由不行，但直连不同字段都可以
    struct sockaddr_in peeraddr;
    bzero(&peeraddr, sizeof(peeraddr));
    peeraddr.sin_family = AF_INET;
    peeraddr.sin_port = htons(MUTIL_PORT);
    peeraddr.sin_addr.s_addr = inet_addr(MUTIL_ADDR);


    while(1)
    {
        //防止arm端ip被改
        GetIP_v4_and_v6_linux(AF_INET,s_ip,16);
        save_system_ip(s_ip, strlen(s_ip));

        val++;

        ret = recvfrom(s_fd, buf, 64, 0, (struct sockaddr*)&addr, &len);//最后一个参数的定义跟sendto不一样，注意！
//.........这里部分代码省略.........

int
utmpx_mark_init(pid_t pid, char *prefix)
{
	struct utmpx ut, *oldu;
	int tmplen;
	int ret;

	while (st->st_initial && !utmpx_truncated)
		(void) usleep(200 * USEC_PER_MSEC);

	/*
	 * Clean out any preexisting records for this PID, as they must be
	 * inaccurate.
	 */
	utmpx_mark_dead(pid, 0, B_TRUE);

	/*
	 * Construct a new record with the appropriate prefix.
	 */
	(void) memset(&ut, 0, sizeof (ut));
	(void) strncpy(ut.ut_user, ".startd", sizeof (ut.ut_user));
	ut.ut_pid = pid;

	ut.ut_id[0] = ut.ut_id[1] = ut.ut_id[2] = ut.ut_id[3] = (char)SC_WILDC;

	for (ret = 0; ret < strlen(prefix); ret++)
		ut.ut_id[ret] = prefix[ret];

	ut.ut_type = INIT_PROCESS;
	(void) time(&ut.ut_tv.tv_sec);

	for (;;) {
		MUTEX_LOCK(&utmpx_lock);
		setutxent();

		if ((oldu = getutxid(&ut)) != NULL) {
			/*
			 * Copy in the old "line" and "host" fields.
			 */
			bcopy(oldu->ut_line, ut.ut_line, sizeof (ut.ut_line));
			bcopy(oldu->ut_host, ut.ut_host, sizeof (ut.ut_host));
			ut.ut_syslen = (tmplen = strlen(ut.ut_host)) ?
			    min(tmplen + 1, sizeof (ut.ut_host)) : 0;
		}

		if (makeutx(&ut) != NULL)
			break;

		if (errno != EROFS)
			log_framework(LOG_WARNING,
			    "makeutx failed, retrying: %s\n", strerror(errno));

		MUTEX_UNLOCK(&utmpx_lock);

		(void) sleep(1);
	}

	updwtmpx(WTMPX_FILE, &ut);

	endutxent();
	MUTEX_UNLOCK(&utmpx_lock);

	return (ret);
}

//.........这里部分代码省略.........
	atpb.atp_rresiovcnt = 1;
	if ( atp_rresp( satp, &atpb ) < 0 ) {
	    perror( "atp_rresp" );
	    continue;
	}

#ifndef NONZEROSTATUS
	/*
	 * The stinking LaserWriter IINTX puts crap in this
	 * field.
	 */
	if ( ((char *)rniov[ 0 ].iov_base)[ 0 ] != 0 ) {
	    fprintf( stderr, "Bad status response!\n" );
	    exit( 1 );
	}
#endif /* NONZEROSTATUS */

	if ( ((char *)rniov[ 0 ].iov_base)[ 1 ] != PAP_STATUS ||
		atpb.atp_rresiovcnt != 1 ) {
	    fprintf( stderr, "Bad status response!\n" );
	    exit( 1 );
	}

	if(debug){ printf( "< STATUS\n" ), fflush( stdout );}

	memcpy( st_buf, (char *) rniov[ 0 ].iov_base + 9, 
		((char *)rniov[ 0 ].iov_base)[ 8 ] );
	st_buf[ (int) ((char *)rniov[ 0 ].iov_base)[ 8 ]] = '\0';
	if ( strstr( st_buf, "idle" ) != NULL ) {
	    waitforidle = 0;
	} else {
	    updatestatus( (char *) rniov[ 0 ].iov_base + 9,
		    ((char *)rniov[ 0 ].iov_base)[ 8 ] );
	    sleep( 5 );
	}
    }

    cbuf[ 0 ] = connid = getpid() & 0xff;
    cbuf[ 1 ] = PAP_OPEN;
    cbuf[ 2 ] = cbuf[ 3 ] = 0;
    cbuf[ 4 ] = atp_sockaddr( atp )->sat_port;
    cbuf[ 5 ] = oquantum;	/* flow quantum */
    if ( gettimeofday( &stv, NULL ) < 0 ) {
	perror( "gettimeofday" );
	exit( 2 );
    }
    for (;;) {
	if ( cuts ) {
	    waiting = 0xffff;
	} else {
	    if ( gettimeofday( &tv, NULL ) < 0 ) {
		perror( "gettimeofday" );
		exit( 2 );
	    }
	    waiting = htons( tv.tv_sec - stv.tv_sec );
	}
	memcpy(cbuf +  6, &waiting, sizeof( waiting ));

	atpb.atp_saddr = &nn.nn_sat;
	atpb.atp_sreqdata = cbuf;
	atpb.atp_sreqdlen = 8;		/* bytes in OpenConn request */
	atpb.atp_sreqto = 2;		/* retry timer */
	atpb.atp_sreqtries = 5;		/* retry count */
	if ( atp_sreq( atp, &atpb, 1, ATP_XO ) < 0 ) {
	    perror( "atp_sreq" );
	    exit( 1 );

main(int argc, char *argv[])
{
    int i, j, l;
    int ch;
    extern char *optarg;
    int edge;
    int size;
    int lu_arg[MAX_THREADS][3];
    
    /* ARMCI */
    void **ptr;
    double **ptr_loc;

    THREAD_LOCK_INIT(mutex);
    
    armci_msg_init(&argc,&argv);
    nproc = armci_msg_nproc();
    me = armci_msg_me();
    
    while ((ch = getopt(argc, argv, "n:b:p:t:d:h")) != -1) {
        switch(ch) {
            case 'n': n = atoi(optarg); break;
            case 'b': block_size = atoi(optarg); break;
            case 'p': nproc = atoi(optarg); break;
            case 't': th_per_p = atoi(optarg); break;
            case 'd': d = atoi(optarg); break;
            case 'h': {
                printf("Usage: LU, or \n");
        printf("       LU -nMATRIXSIZE -bBLOCKSIZE -pNPROC -tTH_PER_P\n");
                armci_msg_barrier();
                armci_msg_finalize();
                exit(0);
            } 
        }
    }

    if(th_per_p>MAX_THREADS) {
        th_per_p=MAX_THREADS;
        if(me==0)printf("Warning: cannot run more than %d threads, adjust MAX_THREADS",MAX_THREADS);
    }

    if (d) {
        fprintf(stderr, "%d: %d\n", me, getpid());
        sleep(d);
    }

    nthreads = th_per_p * nproc;
    if(me == 0) {
        printf("\n Blocked Dense LU Factorization\n");
        printf("     %d by %d Matrix\n", n, n);
        printf("     %d Processors\n", nproc);
        printf("     %d thread(s) per processor, %d threads total\n", th_per_p, nthreads);
        printf("     %d by %d Element Blocks\n", block_size, block_size);
        printf("\n");
    }
    
    num_rows = (int) sqrt((double) nthreads);
    for (;;) {
        num_cols = nthreads/num_rows;
        if (num_rows*num_cols == nthreads)
            break;
        num_rows--;
    }
    
    nblocks = n/block_size;
    if (block_size * nblocks != n) {
        nblocks++;
    }
    
    num = (nblocks * nblocks)/nthreads;
    if((num * nthreads) != (nblocks * nblocks))
        num++;

    edge = n%block_size;
    if (edge == 0) {
        edge = block_size;
    }
#ifdef DEBUG
    if(me == 0)
        for (i=0;i<nblocks;i++) {
            for (j=0;j<nblocks;j++) 
                printf("%d ", block_owner(i, j));
            printf("\n");
        }
    armci_msg_barrier();
/*    armci_msg_finalize(); */
/*    exit(0); */
#endif
    
    for (l = 0; l < th_per_p; l++) {
        me_th[l] = me * th_per_p + l;
        for (i=0;i<nblocks;i++) {
            for (j=0;j<nblocks;j++) {
                if(block_owner(i,j) == me_th[l]) {
                    if ((i == nblocks-1) && (j == nblocks-1)) {
                        size = edge*edge;
                    }
                    else if ((i == nblocks-1) || (j == nblocks-1)) {
                        size = edge*block_size;
                    }
//.........这里部分代码省略.........

int main (int argc, char *argv[])
{
    unsigned int    outfile_p, outfile, device, i, seek, last_blk, sprint_size, flag = 0;
    char            *buf, *buf_test, c, *buf_prev, buf2[1000];
    struct timespec start, end;
    unsigned long long local_nsec;

    if (argc < 4) {
        printf("Usage <a.out> \"device/file path\" <blocks to test> <character>\n");
        exit (1);
    }

    system("/ssdoptfs/drcontrol.py -d DAE0010T -r all -c on");
    sleep(10);

    for(i = 0; i < 1000; i++) {
        buf2[i] = '\0';
    }

    if ((device = open(argv[1], O_RDWR, O_SYNC)) == -1) {
        printf("Could not open device, exiting\n");
        exit(1);
    }
    
    unlink(OUT_FILE);
    unlink(OUT_FILE_P);

    if ((outfile = open(OUT_FILE, O_RDWR | O_CREAT, O_SYNC)) == -1) {
        printf("Could not open output file, exiting\n");
        exit(1);
    }

    if ((outfile_p = open(OUT_FILE_P, O_RDWR | O_CREAT, O_SYNC)) == -1) {
        printf("Could not open output file, exiting\n");
        exit(1);
    }

    // Allocate buffer
    if ((buf = (char *)malloc(BLOCK_SIZE)) == NULL) {
        printf("Could not allocate buffer, exiting\n");
        exit(1);
    }

    if ((buf_test = (char *)malloc(BLOCK_SIZE)) == NULL) {
        printf("Could not allocate buffer, exiting\n");
        exit(1);
    }

    /*if ((buf_prev = (char *)malloc(BLOCK_SIZE)) == NULL) {
        printf("Could not allocate buffer, exiting\n");
        exit(1);
    }*/

    c = *argv[3];
    printf("\n");

    last_blk = atoi(argv[2]);

    // Fill buffer 
    for (i = 0; i < BLOCK_SIZE; i++) {
        *(buf + i) = c;
    }

    for(seek = 0; seek <= last_blk; seek++) {

        if (lseek(device, seek * BLOCK_SIZE, SEEK_SET) == -1) {
            printf("Seek failed, blknbr %d\n", seek);
        }

        if ((read(device, buf_test, BLOCK_SIZE) == -1)) {
            printf("A read failed, blknbr %d\n", seek);
            break;
        }

//        memcpy(buf_prev, buf, BLOCK_SIZE);
       if (memcmp(buf, buf_test, BLOCK_SIZE)) {
           flag = 1;
           sprint_size = sprintf(buf2, "Inconsistent write detected at blknbr %d, sector %d\n", seek, seek * 8);
           write (outfile, buf2, sprint_size);

           for(i = 0; i < BLOCK_SIZE; i++) {
               if (*(buf_test + i) == c) {
                   printf("partial write detected\n");
                   sprint_size = sprintf(buf2, "Partial Inconsistent Write detected blknbr %d, sector %d\n", seek, seek * 8);
                   write (outfile_p, buf2, sprint_size);
                   write (outfile_p, buf_test, BLOCK_SIZE);
                   write (outfile_p, "\n", 1);
               }
           }
       } else if (flag) {
           printf("out of order write!!\n");
       }
    }
//    printf("Differing block : %s \n",buf_test);
//    printf("Previous block : %s \n",buf_prev);
    printf("normal exit\n");
    close(device);
    close(outfile);
    close(outfile_p);
    return;
//.........这里部分代码省略.........

int
internal__hydra_connect(unsigned long int host, int port, int protocol, int type)
{
  int s, ret = -1;
  struct sockaddr_in target;
  char *buf, *tmpptr = NULL;
  struct sockaddr_in sin;

#ifndef CYGWIN
  char out[16];
#endif

  if ((s = socket(PF_INET, protocol, type)) >= 0) {
    if (src_port != 0)
    {
      int bind_ok=0;
      sin.sin_family = PF_INET;
      sin.sin_port = htons(src_port);
      sin.sin_addr.s_addr = INADDR_ANY;
      
      //we will try to find a free port down to 512
      while (!bind_ok && src_port >= 512)
      {
	if (bind(s, (struct sockaddr *)&sin, sizeof(sin))==-1)
	{
	      if (verbose)
	        perror("error:");
	      if (errno == EADDRINUSE)
	      {
	      	  src_port--;
		  sin.sin_port = htons(src_port);
	      }
	      else
	      {
		if (errno == EACCES && (getuid() > 0))
		{
			printf("You need to be root to test this service\n");
			return -1;
		}
	      }
	}
	else
		bind_ok=1;
      }
    }  
    if (use_proxy > 0) {
      target.sin_port = htons(proxy_string_port);
      memcpy(&target.sin_addr.s_addr, &proxy_string_ip, 4);
    } else {
      target.sin_port = htons(port);
      memcpy(&target.sin_addr.s_addr, &host, 4);
    }
    target.sin_family = AF_INET;
    signal(SIGALRM, alarming);
    do {
      if (fail > 0)
        sleep(WAIT_BETWEEN_CONNECT_RETRY);
      alarm_went_off = 0;
      alarm(waittime);
      ret = connect(s, (struct sockaddr *) &target, sizeof(target));
      alarm(0);
      if (ret < 0 && alarm_went_off == 0) {
        fail++;
        if (verbose && fail <= MAX_CONNECT_RETRY)
          fprintf(stderr, "Process %d: Can not connect [unreachable], retrying (%d of %d retries)\n", (int) getpid(), fail, MAX_CONNECT_RETRY);
      }
    } while (ret < 0 && fail <= MAX_CONNECT_RETRY);
    if (ret < 0 && fail > MAX_CONNECT_RETRY) {
      if (debug)
        printf("DEBUG_CONNECT_UNREACHABLE\n");

/* we wont quit here, thats up to the module to decide what to do 
 *              fprintf(stderr, "Process %d: Can not connect [unreachable], process exiting\n", (int)getpid());
 *              hydra_child_exit(1);
 */
      extern_socket = -1;
      ret = -1;
      return ret;
    }
    ret = s;
    extern_socket = s;
    if (debug)
      printf("DEBUG_CONNECT_OK\n");

    if (use_proxy == 2) {
      buf = malloc(4096);
      memset(&target, 0, sizeof(target));
      memcpy(&target.sin_addr.s_addr, &host, 4);
      target.sin_family = AF_INET;
#ifdef CYGWIN
      if (proxy_authentication == NULL)
        snprintf(buf, 4096, "CONNECT %s:%d HTTP/1.0\r\n\r\n", inet_ntoa((struct in_addr) target.sin_addr), port);
      else
        snprintf(buf, 4096, "CONNECT %s:%d HTTP/1.0\r\nProxy-Authorization: Basic %s\r\n\r\n", inet_ntoa((struct in_addr) target.sin_addr), port, proxy_authentication);
#else
      if (proxy_authentication == NULL)
        snprintf(buf, 4096, "CONNECT %s:%d HTTP/1.0\r\n\r\n", inet_ntop(AF_INET, &target.sin_addr, out, sizeof(out)), port);
      else
        snprintf(buf, 4096, "CONNECT %s:%d HTTP/1.0\r\nProxy-Authorization: Basic %s\r\n\r\n", inet_ntop(AF_INET, &target.sin_addr, out, sizeof(out)), port,
                 proxy_authentication);
//.........这里部分代码省略.........

int main()
{
	char mqname[NAMESIZE], msgrv[BUFFER];
	mqd_t mqdes;
	struct timespec ts;
	time_t oldtime, newtime;
	struct mq_attr attr;
	pid_t pid;
	int unresolved = 0, failure = 0;

	sprintf(mqname, "/" FUNCTION "_" TEST "_%d", getpid());

	attr.mq_msgsize = BUFFER;
	attr.mq_maxmsg = BUFFER;
	mqdes = mq_open(mqname, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR, &attr);
	if (mqdes == (mqd_t)-1) {
		perror(ERROR_PREFIX "mq_open");
		unresolved = 1;
	}

	pid = fork();
	if (pid != 0) {
		/* Parent process */
		struct sigaction act;
		act.sa_handler = exit_handler;
		act.sa_flags = 0;
		sigemptyset(&act.sa_mask);
		sigaction(SIGABRT, &act, 0);
#ifdef _POSIX_TIMERS
		printf("Using CLOCK_REALTIME\n");
		clock_gettime(CLOCK_REALTIME, &ts);
		oldtime = ts.tv_sec;
		ts.tv_sec = ts.tv_sec + TIMEOUT;
#else
		ts.tv_sec = time(NULL) + TIMEOUT;
		oldtime = time(NULL);
#endif
		ts.tv_nsec = 0;
		mq_timedreceive(mqdes, msgrv, BUFFER, NULL, &ts);
#ifdef _POSIX_TIMERS
		clock_gettime(CLOCK_REALTIME, &ts);
		newtime = ts.tv_sec;
#else
		newtime = time(NULL);
#endif
		if ((newtime - oldtime) < TIMEOUT) {
			printf("FAIL: mq_timedreceive didn't block until "
			       "timout expires\n");
			failure = 1;
		}
		/* Parent is not blocking, let child abort */
		kill(pid, SIGABRT);
		wait(NULL);
		if (mq_close(mqdes) != 0) {
			perror(ERROR_PREFIX "mq_close");
			unresolved = 1;
		}
		if (mq_unlink(mqname) != 0) {
			perror(ERROR_PREFIX "mq_unlink");
			unresolved = 1;
		}
		if (failure == 1 || blocking == 1) {
			printf("Test FAILED\n");
			return PTS_FAIL;
		}
		if (unresolved == 1) {
			printf("Test UNRESOLVED\n");
			return PTS_UNRESOLVED;
		}
		printf("Test PASSED\n");
		return PTS_PASS;
	} else {
		sleep(TIMEOUT + 3); /* Parent is probably blocking
				       send a signal to let it abort */
		kill(getppid(), SIGABRT);
		return 0;
	}
}

////////////////////////////////////////////////////////////////////////////
// Function: netset
////////////////////////////////////////////////////////////////////////////
int videoset(char **postvars, int form_method)
{
	FILE *fffd,*fp, *vsfd;
	unsigned long	ulTemp;
	unsigned char	ucbuf[sizeof(video_conf)];
	int iTemp, i, size;
	char pctmp[40];
	char iptmp[20];


	// HTML header, print it here
	printf("Content-type: text/html\r\n\r\n");
	printf("\r\n\r\n");
	printf("<html><head></head>");
	fflush(stdout);
	usleep(1000);

	// If we got post, write it into flash
	if(form_method == POST)
	{
		printf("<body><center><BR><font style=\"font-size:12pt\" face=\"Arial\">");
		// Read and preserve content from flash to buffer
		GetConfValues();

		for (i=0; postvars[i]; i+= 2)
		{
#if DEBUG
			printf("DEBUG: [%s] = [%s]<br>", postvars[i], postvars[i+1]);
#endif

			// Parse for video port
			if(!strcmp(postvars[i], "VIDEOPORT"))
			{
				CONF_VIDEO->ServerPort = (unsigned short)atoi(postvars[i+1]);
			}
			
			// parse for quality method
			if(!strcmp(postvars[i], "QUALITYMETHOD"))
			{
				if(!strcmp(postvars[i+1], "1"))
					CONF_VIDEO->QualityMethod = 1;
				else if(!strcmp(postvars[i+1], "2"))
					CONF_VIDEO->QualityMethod = 2;
			}

			// parse for bitrate
			if(!strcmp(postvars[i], "BITRATE"))
			{
				if(!strcmp(postvars[i+1], "1"))
					CONF_VIDEO->BitRate = 1;
				else if(!strcmp(postvars[i+1], "2"))
					CONF_VIDEO->BitRate = 2;
				else if(!strcmp(postvars[i+1], "3"))
					CONF_VIDEO->BitRate = 3;
				else if(!strcmp(postvars[i+1], "4"))
					CONF_VIDEO->BitRate = 4;
				else if(!strcmp(postvars[i+1], "5"))
					CONF_VIDEO->BitRate = 5;
				else if(!strcmp(postvars[i+1], "6"))
					CONF_VIDEO->BitRate = 6;
				else if(!strcmp(postvars[i+1], "7"))
					CONF_VIDEO->BitRate = 7;
				else if(!strcmp(postvars[i+1], "8"))
					CONF_VIDEO->BitRate = 8;
				else if(!strcmp(postvars[i+1], "9"))
					CONF_VIDEO->BitRate = 9;
				else if(!strcmp(postvars[i+1], "10"))
					CONF_VIDEO->BitRate = 10;
				else if(!strcmp(postvars[i+1], "11"))
					CONF_VIDEO->BitRate = 11;
			}
			
			// parse for quality
			if(!strcmp(postvars[i], "QUALITY"))
			{
				if(!strcmp(postvars[i+1], "1"))
					CONF_VIDEO->Quality = 1;
				else if(!strcmp(postvars[i+1], "2"))
					CONF_VIDEO->Quality = 2;
				else if(!strcmp(postvars[i+1], "3"))
					CONF_VIDEO->Quality = 3;
				else if(!strcmp(postvars[i+1], "4"))
					CONF_VIDEO->Quality = 4;
				else if(!strcmp(postvars[i+1], "5"))
					CONF_VIDEO->Quality = 5;
			}
			
			// parse for resolution
			if(!strcmp(postvars[i], "RESOLUTION"))
			{
				if(!strcmp(postvars[i+1], "1"))
					CONF_VIDEO->Resolution = 1;
				else if(!strcmp(postvars[i+1], "2"))
					CONF_VIDEO->Resolution = 2;
				else if(!strcmp(postvars[i+1], "3"))
					CONF_VIDEO->Resolution = 3;
				else if(!strcmp(postvars[i+1], "4"))
//.........这里部分代码省略.........

int main(int argc, char **argv) 
{
	char dir[BUFSIZ];
	struct sock_cl s;
	pid_t child_id;
	int addrlen;
	int status;
	struct question *q; /* are we going to recycle the same data structure over and over again */	

	if(argc != 3) {
		fprintf(stderr, "USAGE: ./udp_client ip_address port_number\n");
		return -1;
	}

	if(argv[1]) 
		strcpy(hostname, argv[1]);
	else
		strcpy(hostname, HOST);
	if(argv[2]) 
		s.port = atoi(argv[2]);
	else
		s.port = port;

	while(obtain_req_type(dir) != 0){
		fprintf(stderr, "Still no request for client\n");
		sleep(2);
	}	
	populate_sock(&s);
	addrlen = s.addrlen; 

	ap_debug("====>Client side port = %d", port);

	/* All transaction are started by client, so it is client which will either ask 
	 * 1. server to send the question or 
	 * 2. process the question send by the user.
	 * in case 1. the user has already asked the question and waiting for response
	 * in case 2. user pushes a question. server sends it to another client, who wants to answer the question
	 * server waits for the response from the user, as soon as response is available, 
	 * the server pushes the question back to first client
	 */
	ap_debug("%p\n",&s.sin);
	while(1) {
		switch(query_type(dir))
		{
				/*  Begin set 1 reqQ-saveA */
			case REQ_QUESTION:
				strcpy(s.buffer, dir);
				client_req_ques(&s);
				q = (struct question *)malloc(sizeof(struct question));
				populate_ques_ds(question_file, q);
				strcpy(dir, s.buffer);
				break;
				/* set 2 reqA-saveQ End */
			case REQ_ANSWER:
				strcpy(s.buffer, dir);
				client_req_ans(&s);
				strcpy(dir, req_type[REQ_STOP]);
				break;
				/* Begin set 2 saveQ-reqA */
			case SAVE_QUESTION:
				/* CAUTION dir and s.buffer contain different values */
				memset(s.buffer, 0, sizeof(s.buffer));
				/* open the question file and populate question data structure */
				q = (struct question *)malloc(sizeof(struct question));
				populate_ques_ds(question_file, q);
				create_qbuf(q,s.buffer);
				client_save_ques(&s, dir); /* dir is populated inside here */
				free_question(q);
				break;
				/* set 1 saveA-reqQ End */
			case SAVE_ANSWER:
				if( access( answer_file, F_OK ) == -1 ) 
						continue;
				/* obtain answer in the buffer */
				/* open the answer file and fill the buffer */
				memset(s.buffer, 0, sizeof(s.buffer));
				populate_if_match(q, answer_file); /* obtain data structure for question */
				create_abuf(q, s.buffer);
				client_save_ans(&s, dir);
				strcpy(dir, req_type[REQ_STOP]);
				free_question(q);
				break;
			case REQ_STOP:
				/* do any cleanup here? */
				return 0;
			case REQ_LOOP:
				/* do any cleanup here? */
				break;
			default:
			case -1:
				fprintf(stderr, "What the fuck bro?\n");
				exit(EXIT_FAILURE);

		}

	sleep(1);
	}

	return 0;
}

//read one total frame and load the data section(except for the start three bytes) into buf
//and return the length of it(including the checksum bit)
int tty_serial_read(int fds, String tbuf) {
	if(fds<0 || !tbuf) PARAMETER_ERROR("tty_serial_read");
	if(tbuf[0]) memset(tbuf,0,MAX_FRAME_SIZE);
	
	while(tbuf[0]!='~') {
		if(read(fds,tbuf,1)<0) {
			perror("reading ttyUSB0");
			sleep(2);
		}
	}
	tbuf++; //point to the new position
		
	ssize_t ret;
	int i,bytes=1,leng = 2; //bytes:bytes already read, length: bytes to read
	while (leng!=0 && (ret=read(fds,tbuf,leng))!=0) {
		if(ret==-1) {
			if(errno==EINTR)
				continue;
			perror("read the starting 3 bytes");  //no data available in non-blocking mode or other errors
			sleep(2);
			return -1;
		}
		leng -= ret;
		tbuf += ret;
	}
	bytes += 2;
	
	leng = inbuf[1]*256 + inbuf[2] +1;  //including the checksum bit, be careful to use inbuf cauze tbuf is moving!!
	printf("received data section length including the checksum: %d seq: %d\n",leng,inbuf[38]);
	
	//continue reading the followint bytes of length leng and check escape
	int nr_escapes = leng;
	do {
		leng = nr_escapes;
		while (leng!=0 && (ret=read(fds,tbuf,leng))!=0) {
			if(ret==-1) {
				if(errno==EINTR)
					continue;
				perror("read the data section error");
				sleep(1);
				return -1;
			}
			leng -= ret;
			tbuf += ret;
		}
		bytes += nr_escapes;
		
		int i, leng = nr_escapes;
		nr_escapes = 0;
		for(i=bytes-leng;i<bytes;i++) {  //check the newly read bytes
			if(inbuf[i]==0x7D) {
				printf("the byte after escape: %d %d\n",i, inbuf[i+1]);
				//int c = tbuf[1+i];
				//if(c==0x7E || c==0x11 || c==0x13 || c==0x7D) {
				nr_escapes++;
			}
		} 
	} while(nr_escapes);
	
	#ifndef DEBUG
	leng = bytes;
	String fbuf = inbuf;
	int logfds = open("./esclog.txt", O_CREAT | O_RDWR | O_APPEND);
	while (leng!=0 && (ret=write(logfds,fbuf,leng))!=0) {
		if(ret==-1) {
			if(errno==EINTR)
				continue;
			perror("wrinting to log file");
		}
		leng -= ret;
		fbuf += ret;
	}
	if(close(logfds)==-1) perror("close esclog file");
	#endif
	
	//descape and check checksum
	bytes = xbee_frame_descape(inbuf,bytes);		
	if(xbee_set_checksum(&inbuf[3],bytes-3)!=0) {
		printf("%s\n","checksum error...");
		//memset(inbuf,0,bytes);
		return 0;
	} else {
		printf("%s total bytes after descape: %d seq: %d\n","checksum perfect!",bytes,);
	}
	
	#ifndef DEBUG
	leng = bytes;
	fbuf = inbuf;
	int dlogfds = open("./esclog.txt", O_CREAT | O_RDWR | O_APPEND);
	while (leng!=0 && (ret=write(dlogfds,fbuf,leng))!=0) {
		if(ret==-1) {
			if(errno==EINTR)
				continue;
			perror("wrinting to dlog file");
		}
		leng -= ret;
		fbuf += ret;
	}
//.........这里部分代码省略.........