Ejemplo n.º 1
0
/*---------------------------------------------------------------------+
|                               writer ()                              |
| ==================================================================== |
|                                                                      |
| Function:  Fill the "scratch" shared memory segment up with data and |
|            compute the segment checksum.                             |
|            Release "write" lock after completing so that the readers |
|	     are able to start.                                        |
|	                                                               |
| Updates:   cksum[]  - array containing checksums computed by writers.|
|	     data shared memory segment filled up.                     |
|                                                                      |
+---------------------------------------------------------------------*/
void *writer (void *parm)
{
	int num_w = (int) (long)parm;
	unsigned long cksum_w = 0;	/* Shared memory regions checksum */
        unsigned char data = 0; /* Value written into shared memory segment */
        unsigned char *ptr;     /* Misc pointer */

        /*
         * Fill the "scratch" shared memory segment up with data and
         * compute the segments checksum.  Release "write" lock after
         * completing so that the reader threads may begin to read the
         * data.
         */
        data = num_w;

        for (ptr=shmptr[num_w]; ptr < (shmptr[num_w]+buffer_size); ptr++) {
                *ptr = (data++) % (UCHAR_MAX + 1);
                cksum_w += *ptr;
        }
        if (pthread_mutex_lock (&cond_mutex[num_w]))
                sys_error ("mutex_lock(&cond_mutex) failed", __LINE__);
        thread_hold[num_w]=0;
        if (pthread_cond_broadcast (&cond_var[num_w]))
                sys_error ("cond_signal(&cond_var) failed", __LINE__);
        if (pthread_mutex_unlock (&cond_mutex[num_w]))
                sys_error ("mutex_unlock(&cond_mutex) failed", __LINE__);


	cksum[num_w] = cksum_w;
        printf ("\t\twriter (%03d): shared memory checksum %08lx\n", num_w, cksum_w);

	return NULL;
}
Ejemplo n.º 2
0
/*---------------------------------------------------------------------+
|                             release ()                               |
| ==================================================================== |
|                                                                      |
| Function:  Release shared memory regions.                            |
|                                                                      |
+---------------------------------------------------------------------*/
void release ()
{
        int i;
        int j;
        for (i=0; i<num_writers; i++) {
        if (pthread_mutex_destroy(&cond_mutex[i]) != 0)
                sys_error ("Can't destroy cond_mutex", __LINE__);
        if (pthread_mutex_destroy(&mutex_r[i]) != 0)
                sys_error ("Can't destroy mutex_r", __LINE__);
        }


        for (i=0; i<num_writers; i++) {
        /*
         * Release shared memory regions
         */
	j=i*3;
        if (shmctl (shmid[j], IPC_RMID, 0) < 0)
                sys_error ("read_count shmctl failed", __LINE__);
	j++;
        if (shmctl (shmid[j], IPC_RMID, 0) < 0)
                sys_error ("checksum shmctl failed", __LINE__);
	j++;
        if (shmctl (shmid[j], IPC_RMID, 0) < 0)
                sys_error ("shmptr shmctl failed", __LINE__);

        }
}
Ejemplo n.º 3
0
Archivo: sched_tc6.c Proyecto: 1587/ltp
/*---------------------------------------------------------------------+
|                             read_file ()                             |
| ==================================================================== |
|                                                                      |
| Function:  ...                                                       |
|                                                                      |
+---------------------------------------------------------------------*/
int read_file(int fd, char *filename)
{
	int bytes_read;
	int loop_count;
	long total_bytes;
	off_t lseek();
	off_t file_offset = 0;
	int whence = 0;

	char buf[BLOCK_SIZE];

	/* read file for "TIMES" number of times */
	total_bytes = 0;
	if (debug)
		printf("\n");
	for (loop_count = 1; loop_count <= TIMES; loop_count++) {
		while ((bytes_read = read(fd, buf, BLOCK_SIZE)) > 0) {
			if (bytes_read == -1) {
				sys_error("read failed", __FILE__, __LINE__);
			} else
				total_bytes = total_bytes + bytes_read;
		}
		if (lseek(fd, file_offset, whence) < 0)
			sys_error("lseek failed", __FILE__, __LINE__);

		if (debug) {
			printf("\r\ttotal bytes read = %ld", total_bytes);
			fflush(stdout);
		}
		total_bytes = 0;
	}
	if (debug)
		printf("\n");
	return 1;
}
Ejemplo n.º 4
0
static bool readHeader(file_t fp, const unsigned id)
{
    resource_header_t header;
    U16 u16Temp;

    if (sysfile_read(fp, &header, sizeof(header), 1) != 1)
    {
        sys_error("(resources) unable to read header from \"%s\"", resourceFiles[id]);
        return false;
    }

    if (memcmp(header.magic, resource_magic, sizeof(header.magic)) != 0)
    {
        sys_error("(resources) wrong header for \"%s\"", resourceFiles[id]);
        return false;
    }

    memcpy(&u16Temp, header.version, sizeof(u16Temp));
    u16Temp = htole16(u16Temp);
    if (u16Temp != DATA_VERSION)
    {
        sys_error("(resources) incompatible version for \"%s\"", resourceFiles[id]);
        return false;
    }

    memcpy(&u16Temp, header.resourceId, sizeof(u16Temp));
    u16Temp = htole16(u16Temp);
    if (u16Temp != id)
    {
        sys_error("(resources) mismatching ID for \"%s\"", resourceFiles[id]);
        return false;
    }
    return true;
}
Ejemplo n.º 5
0
static int net_listen(int *fd, struct addrinfo *ai)
{
    int res;
    int _fd;
    const int yes = 1;

    _fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
    if (_fd < 0) {
        sys_error();
        return -1;
    }
    /* disable IPv4-to-IPv6 mapping */
    if (ai->ai_family == AF_INET6)  {
        res = setsockopt(_fd, IPPROTO_IPV6, IPV6_V6ONLY,
                         &yes, sizeof(yes));
        if (res)
            goto error_and_close;
    }
    res = setsockopt(_fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
    if (res)
        goto error_and_close;
    res = bind(_fd, ai->ai_addr, ai->ai_addrlen);
    if (res)
        goto error_and_close;
    res = listen(_fd, 6);
    if (res)
        goto error_and_close;
    if (fd)
        *fd = _fd;
    return 0;
error_and_close:
    sys_error();
    close(_fd);
    return -1;
}
Ejemplo n.º 6
0
static int
cp_cmd(int argc, char *argv[])
{
	FileHandle *file;
	int fd;

	if ((file = file_open_pathname(fs, 0, argv[1])) == 0)
		return 0;
	if ((fd = creat(argv[2], 0666)) == -1)
	{
		sys_error("cp", "could not open '%s' for writing", argv[2]);
		return 0;
	}

	while (file_read(file) > 0)
	{
		if (write(fd, file->buffer, file->nread) == -1)
		{
			sys_error("cp", "could not write to '%s'", argv[2]);
			file_close(file);
			return 0;
		}
	}

	if (close(fd) == -1)
	{
		sys_error("cp", "could not write to '%s'", argv[2]);
		file_close(file);
		return 0;
	}
	return 1;
}
Ejemplo n.º 7
0
static void wi_start(unsigned count)
{
    unsigned i;
    struct listen *curr;
    int e;

    for (curr = listen_head; curr; curr = curr->next) {
        wi_grow(count);
        for (i = 0; i < count; i++) {
            struct work_info *wi;

            wi = calloc(1, sizeof(*wi));
            wi->active = true;
            wi->li = curr;
            e = pthread_create(&wi->thr, NULL, worker_loop, wi);
            if (e) {
                sys_error();
                free(wi);
                break;
            }
            e = pthread_detach(wi->thr);
            if (e) {
                sys_error();
                /* TODO: handle this error */
            }
            wi = NULL;
            work[work_cur++] = wi;
        }
    }
    printf("thread count at %d\n", work_cur);
}
Ejemplo n.º 8
0
void
POL::usefile (int source, const char *fn)
{
  FILE *fp;

  ++currentf;
  if (currentf >= MAXFILE) {
    --currentf;
    sys_error (ERR_SEVERE, "files nested too deeply");
    return;
  }

  while (! m_stackPushBackInput.empty())
    m_stackPushBackInput.pop();

  if (source == P_USE_STR) {
    filep[currentf] = NULL;
  } else if (source == P_USE_FILE) {
    if (fn == NULL || strlen(fn) == 0) {
      fp = stdin;
    } else if ((fp = fopen(fn, "r")) == NULL) {
      --currentf;
      sys_error (ERR_SEVERE, "can't open file");
      return;
    }
    filep[currentf] = fp;
    fname[currentf] = strdup (fn);
  }
}
Ejemplo n.º 9
0
Archivo: sched_tc6.c Proyecto: 1587/ltp
/*---------------------------------------------------------------------+
|                           fork_realtime ()                           |
| ==================================================================== |
|                                                                      |
| Function:  ...                                                       |
|                                                                      |
+---------------------------------------------------------------------*/
int fork_realtime(char **args)
{
	int pid;
	char *results_file = args[2];
	char *priority = args[3];

	/* fork process then determine if process is parent or child */
	pid = fork();
	switch (pid) {
		/* fork failed  */
	case -1:
		sys_error("fork failed", __FILE__, __LINE__);

		/* child process */
	case 0:
		if (execl(*args, *args, REAL_TIME, results_file, priority,
			  NO_FORK, NULL) < 0)
			sys_error("execl failed", __FILE__, __LINE__);

		/* parent process */
	default:
#ifdef DEBUG
		printf("\tparent process id = %d\n", getpid());
		printf("\tchild process id = %d\n\n", pid);
#endif

		break;
	}
	return (pid);
}
Ejemplo n.º 10
0
Archivo: sched_tc1.c Proyecto: 1587/ltp
/*---------------------------------------------------------------------+
|                            process_file ()                           |
| ==================================================================== |
|                                                                      |
| Function:  Opens a file, reads from it until it encounters an        |
|            end-of-file and then closes the file..                    |
|                                                                      |
+---------------------------------------------------------------------*/
void process_file(char *filename)
{
	char record[100];	/* holds each record of the file read */
	FILE *datafile;		/* file pointer to the open file */

	/*
	 * Try and open the datafile
	 */
	if ((datafile = fopen(filename, "r")) == NULL)
		sys_error("fopen failed", __FILE__, __LINE__);

	/*
	 * Read the first record of the datafile, then read until end-of-file
	 */
	while (fgets(record, 80, datafile)) {
		if (feof(datafile))
			break;
	}

	/*
	 * Close the datafile
	 */
	if (fclose(datafile))
		sys_error("fclose failed", __FILE__, __LINE__);
}
Ejemplo n.º 11
0
void
POL::getescape (        /* reads up to delim */
                char *s,
                int delim,
                int toksiz
                )
{
  int i, c;

  for (i = 0; (c = inchar()) != delim; i++) {
    if (c == NEWLINE) {
      sys_error (ERR_WARNING, "Missing closing delimiter.");
      break;
    }
    if (i >= toksiz) {
      sys_error (ERR_SEVERE, "string too long.");
      break;
    }
    if (c == EOF) {
      ungetch(c);
      sys_error (ERR_SEVERE, "end of file inside quotation");
      break;
    } else if (c == BSLASH) {   /* escape character */
      s[i++] = c;
      c = inchar();             /* get escaped character */
    }
    s[i] = c;
  }
  s[i] = EOS;
}
Ejemplo n.º 12
0
rpcbuf* rpcbuf::nonblocking(boolean nonblocking) {
    if (!_opened) {
	error("rpcbuf::nonblocking: not using a file number yet");
	return nil;
    }

    if (_nonblocking != nonblocking) {
	int flags = fcntl(_fd, F_GETFL, 0);
	if (flags < 0) {
	    sys_error("rpcbuf::nonblocking: F_GETFL fcntl");
	    return nil;
	}
	if (nonblocking) {
	    flags |= O_NDELAY;
	} else {
	    flags &= ~O_NDELAY;
	}
	if (fcntl(_fd, F_SETFL, flags) < 0) {
	    sys_error("rpcbuf::nonblocking: F_SETFL fcntl");
	    return nil;
	}
    }

    _nonblocking = nonblocking;
    return this;
}
Ejemplo n.º 13
0
static void
init_files(void)
{
	close(0);
        if ((Acceptfd = open("/dev/null", O_RDWR)) != 0) {
		logmessage("Trouble opening /dev/null");
                sys_error(E_SYS_ERROR, EXIT | NOCORE);
	}

	close(1);
	if ((Sacpipefd = open(SACPIPE, O_RDWR|O_NDELAY)) != 1) {
		logmessage(sacopenmsg);
		error(E_CREAT, EXIT | NOCORE | NO_MSG);
	}

	close(2);
	if ((Pmpipefd = open(PMPIPE, O_RDWR|O_NDELAY)) != 2) {
		logmessage(pmopenmsg);
		error(E_CREAT, EXIT | NOCORE | NO_MSG);
	}

	close(3);
	if ((Passfd = dup(Acceptfd)) != 3) {
		logmessage("Trouble duping /dev/null");
                sys_error(E_SYS_ERROR, EXIT | NOCORE);
	}

}
Ejemplo n.º 14
0
uint64_t
blkio_read(DevInfo *dev, void *buf, uint64_t offset, uint64_t count)
{
	int bytes;

	if (offset > dev->bytes)
	{
		error("blkio_read", "offset 0x%" PRIx64 " > disk size 0x%" PRIx64, offset, dev->bytes);
		return -1;
	}

	if (lseek(dev->fd, offset, SEEK_SET) == -1)
	{
		sys_error("blkio_read", "seek to 0x%" PRIx64 " failed", offset);
		return -1;
	}

	if ((bytes = read(dev->fd, buf, count)) == -1)
	{
		sys_error("blkio_read", "read failed");
		return -1;
	}

	if (bytes < count)
	{
		error("blkio_read", "short read - wanted 0x%" PRIx64 " bytes, got 0x%" PRIx64 " bytes", count, bytes);
		return -1;
	}

	if (each_block_fn)
		each_block_fn(dev, buf, offset, count);

	return bytes;
}
Ejemplo n.º 15
0
int get_conn_to_host(const char* host, int port, int socktype)
{
    sockfd_t sock;
    struct addrinfo *rp, *result = getnetinfo(host, port, socktype);
    for (rp = result; rp != NULL; rp = rp->ai_next) {
        sock = socket(rp->ai_family, rp->ai_socktype,
                      rp->ai_protocol);
        if (sock >= 0) break;
    }

    if (rp == NULL) {
        freeaddrinfo(result);
        return sys_error("socket");
    }

    if (socktype == SOCK_STREAM) {
        if (connect(sock, rp->ai_addr, serv.socksize) == -1) {
            evt_close(sock);
            freeaddrinfo(result);
            return sys_error("connect");
        }
    }

    freeaddrinfo(result);
    return sock;
}
Ejemplo n.º 16
0
/*---------------------------------------------------------------------+
|                                 main                                 |
| ==================================================================== |
|                                                                      |
| Function:  ...                                                       |
|                                                                      |
+---------------------------------------------------------------------*/
int main (int argc, char **argv)
{
	long	start_time;      /* time at start of testcase */
	int	i;

	/*
	 * Setup signal handler & setup alarm so we do not loop forever...
	 */
	signal (SIGUSR1, signal_handler);
	signal (SIGALRM, signal_handler);
	alarm  (600);	/* wait 10 minutes before aborting */

	/*
	 * Process command line arguments...
	 */
	parse_args (argc, argv);
	if (verbose) printf ("%s: Scheduler TestSuite program\n\n", *argv);
	if (debug) {
		printf ("\tpriority:       %s\n", priority);
	}

	/*
	 * Adjust the priority of this process if the real time flag is set
	 */
	if (!strcmp (priority, "fixed")) {
#ifndef __linux__
                if (setpri (0, DEFAULT_PRIORITY) < 0)
                        sys_error ("setpri failed", __FILE__, __LINE__);
#else
                if (setpriority(PRIO_PROCESS, 0, 0) < 0)
                        sys_error ("setpri failed", __FILE__, __LINE__);
#endif
	}

	/*
	 * Continuously multiply matrix as time permits...
	 */
	i = 0;
	start_time = time ((long *) 0);

	/*
	 * Continuously read through file until interrupted...
	 */
	if (debug) printf ("\n");
	while (!signaled) {
		if (debug) {
			printf ("\r\tmultiplying matrix [%d]", i++);
			fflush (stdout);
		}
		multiply_matrices ();
	}
	if (debug) printf ("\n");

	/*
	 * Exit with success!
	 */
	if (verbose) printf ("\nsuccessful!\n");
	return (0);
}
Ejemplo n.º 17
0
/*---------------------------------------------------------------------+
|                                 main                                 |
| ==================================================================== |
|                                                                      |
| Function:  ...                                                       |
|                                                                      |
+---------------------------------------------------------------------*/
int main (int argc, char **argv)
{
    long	start_time;      /* time at start of testcase */
    int	i;

    /*
     * Process command line arguments...
     */
    if (argc < 2) {
        fprintf (stderr, USAGE, *argv);
        exit (0);
    }

    parse_args (argc, argv);
    if (verbose) printf ("%s: Scheduler TestSuite program\n\n", *argv);
    if (debug) {
        printf ("\tpriority:       %s\n", priority);
        printf ("\texecution_time: %ld (sec)\n", execution_time);
    }

    /*
     * Adjust the priority of this process if the real time flag is set
     */
    if (!strcmp (priority, "fixed")) {
#ifndef __linux__
        if (setpri (0, DEFAULT_PRIORITY) < 0)
            sys_error ("setpri failed", __FILE__, __LINE__);
#else
        if (setpriority(PRIO_PROCESS, 0, 0) < 0)
            sys_error ("setpri failed", __FILE__, __LINE__);
#endif
    }

    /*
     * Continuously multiply matrix as time permits...
     */
    i = 0;
    start_time = time ((long *) 0);

    if (debug) printf ("\n");
    while  ( (time ((long *)0) - start_time) < execution_time) {
        if (debug) {
            printf ("\r\tmultiplying matrix [%d], time left: %ld",
                    i++,
                    execution_time - (time ((long *)0)-start_time));
            fflush (stdout);
        }
        multiply_matrices ();
    }
    if (debug) printf ("\n");

    /*
     * Exit with success!
     */
    if (verbose) printf ("\nsuccessful!\n");
    return (0);
}
Ejemplo n.º 18
0
/*---------------------------------------------------------------------+
|                           signal_init ()                             |
| ==================================================================== |
|                                                                      |
| Function:  Take default action for all signals except for SIGCHLD.   |
|            Particularily interrested in the following:               |
|                                                                      |
|              o  SIGSTOP (17) - default action: stop                  |
|              o  SIGCONT (19) - default action: stop                  |
|              o  SIGKILL (09) - default action: abort process         |
|                                                                      |
|            Process signal handler upon receiving the following:      |
|            (Sent when child process stops or exits)                  |
|                                                                      |
|              o  SIGCHLD (20)                                         |
|                                                                      |
| Returns:   n/a                                                       |
|                                                                      |
+---------------------------------------------------------------------*/
void signal_init()
{
	struct sigaction action;
	char msg[100];
	int i;

	for (i = 1; i <= SIGMAX; i++) {

		/* Do not ignore SIGCHILD signal */
#ifdef _IA64			/* SIGWAITING not supported, RESERVED */
		if (i == SIGCHLD || i == SIGALRM ||
		    i == SIGUSR1 || i == SIGWAITING)
			continue;
#else
#ifdef _LINUX_
		if ((i == SIGKILL) || (i == SIGSTOP)
		    || ((i >= 32) && (i <= 34)))
			continue;
#else
		if ((i == SIGKILL) || (i == SIGSTOP) || (i == SIGCONT))
			continue;
#endif
#endif

		action.sa_handler = SIG_DFL;
		sigfillset(&action.sa_mask);
		action.sa_flags = SA_RESTART;

		if (sigaction(i, &action, NULL) < 0) {
			sprintf(msg, "sigaction failed on signal %d", i);
			error(msg, __LINE__);
		}
	}

	/* Setup signal handler for SIGCHLD & SIGUSR1 signals */
	action.sa_handler = (void (*)(int))handler;
	sigfillset(&action.sa_mask);

	/* changing */
	/*action.sa_flags = 0; */
	action.sa_flags = SA_RESTART;

	if (sigaction(SIGCHLD, &action, NULL) < 0)
		sys_error("sigaction (SIGCHLD) failed", __LINE__);

	/* changing */
	action.sa_flags = SA_RESTART;
	/* end of changing */

	if (sigaction(SIGUSR1, &action, NULL) < 0)
		sys_error("sigaction (SIGUSR1) failed", __LINE__);

	/* Setup signal handler for SIGALRM */
	action.sa_handler = (void (*)(int))handler;
	if (sigaction(SIGALRM, &action, NULL) < 0)
		sys_error("sigaction (SIGCHLD) failed", __LINE__);
}
Ejemplo n.º 19
0
/*---------------------------------------------------------------------+
|                           init_sig_vec ()                            |
| ==================================================================== |
|                                                                      |
| Function:  Initialize the signal vector for ALL possible signals     |
|            (as defined in /usr/include/sys/signal.h) except for      |
|            the following signals which cannot be caught or ignored:  |
|                                                                      |
|              o  SIGKILL (9)                                          |
|              o  SIGSTOP (17)                                         |
|              o  SIGCONT (19)                                         |
|                                                                      |
| Returns:   Nothing                                                   |
|                                                                      |
+---------------------------------------------------------------------*/
void init_sig_vec()
{
	char errmsg[256];
	int i;

#ifdef _LINUX_
	static struct sigaction invec;

	for (i = 1; i <= SIGMAX; i++) {
		if ((i == SIGKILL) || (i == SIGSTOP)
		    || ((i >= 32) && (i <= 34)))
			continue;
		invec.sa_handler = handler;
		//sigaction.sa_mask = 0;
		invec.sa_flags = 0;

		if (sigaction(i, &invec, NULL)) {
			sprintf(errmsg,
				"init_sig_vec: sigaction failed on signal (%d)",
				i);
			perror(errmsg);
			sys_error(errmsg, __LINE__);
		}
	}
#else
	static struct sigvec invec;

	for (i = 1; i <= SIGMAX; i++) {

		/* Cannot catch or ignore the following signals */
#ifdef _IA64			/* SIGWAITING NOT supported, RESERVED */
		if ((i == SIGKILL) || (i == SIGSTOP) ||
		    (i == SIGCONT) || (i == SIGWAITING))
			continue;
#else
		if ((i == SIGKILL) || (i == SIGSTOP) || (i == SIGCONT))
			continue;
#endif

		invec.sv_handler = handler;
		//invec.sv_mask = SA_NOMASK;
#if defined  _IA64
		invec.sv_flags = 1;
#else
		invec.sv_onstack = 1;
#endif
		if (sigvec(i, &invec, NULL)) {
			sprintf(errmsg,
				"init_sig_vec: sigvec failed on signal (%d)",
				i);
			perror(errmsg);
			sys_error(errmsg, __LINE__);
		}
	}
#endif //ifdef _LINUX_
}
Ejemplo n.º 20
0
Archivo: sched_tc1.c Proyecto: 1587/ltp
/*---------------------------------------------------------------------+
|                                 main                                 |
| ==================================================================== |
|                                                                      |
| Function:  ...                                                       |
|                                                                      |
+---------------------------------------------------------------------*/
int main(int argc, char **argv)
{
	char *filename = NULL;

	if ((filename = getenv("KERNEL")) == NULL) {
		errno = ENODATA;
		sys_error("environment variable KERNEL not set", __FILE__,
			  __LINE__);
	}
	/*
	 * Setup signal handler & setup alarm so we do not loop forever...
	 */
	signal(SIGUSR1, signal_handler);
	signal(SIGALRM, signal_handler);
	alarm(600);		/* wait 10 minutes before aborting */

	/*
	 * Process command line arguments...
	 */
	parse_args(argc, argv);
	if (verbose)
		printf("%s: Scheduler TestSuite program\n\n", *argv);
	if (debug) {
		printf("\tpriority:       %s\n", priority);
	}

	/*
	 * Adjust the priority of this process if the real time flag is set
	 */
	if (!strcmp(priority, "fixed")) {
#ifndef __linux__
		if (setpri(0, DEFAULT_PRIORITY) < 0)
			sys_error("setpri failed", __FILE__, __LINE__);
#else
		if (setpriority(PRIO_PROCESS, 0, 0) < 0)
			sys_error("setpri failed", __FILE__, __LINE__);
#endif
	}

	/*
	 * Continuously read through file until interrupted...
	 */
	while (!signaled)
		process_file(filename);

	/*
	 * Exit with success!
	 */
	if (verbose)
		printf("\nsuccessful!\n");
	return (0);
}
Ejemplo n.º 21
0
/* -----------------------------------------------------------------
   MAIN: This is started by the IBP server in the source depot, it 
   receives as parameters name of target server, port, and readfd, 
   stablishes a connection with the server and sends the data
   ----------------------------------------------------------------- */
main (int argc, char **argv)
{
  int              *connectfds, sourcefd, numtargets, i, nargs;
  int               retval;
  unsigned long int filesize;
  double            rtmp, result;
  double            s;
  char              **targets, **ports;
  float             rate;

  fprintf(stderr,"\nTCP DATA MOVER:\n%s %s %s %s %s %s <%s>\n\n\n",
	  argv[0],argv[1],argv[2],argv[3],argv[4],argv[5],argv[6]);
 
  if(argc < 7)
    sys_error("Incorrect parameters: smclientTCP <target_hostname> <port_Number> <file_descriptor> <filesize> <numtargets> <IBP_cap>"); 
 
  sourcefd = atoi(argv[3]);  
  filesize = atol(argv[4]);
  numtargets = atoi(argv[5]);
  strcpy(glb.IBP_cap,argv[6]);

  targets = String2Array(argv[1],numtargets,MAX_HOST_LEN);
  ports = String2Array(argv[2],numtargets,MAX_WORD_LEN);
  connectfds = (int *) malloc(sizeof(int) * numtargets);

  for(i=0;i<numtargets;i++){
    if((connectfds[i]= tcp_connect(targets[i],ports[i]))<0) 
      sys_error("connectfd error: host %d failed");    
  }

  s = seconds();      
  retval = SendData2(sourcefd, connectfds, filesize, numtargets);
  if(retval<0){
    fprintf(stderr,"DM mclientTCP problem sending data\n");
    exit(TCP_FAIL);
  }
  s = seconds()-s;     
  rate = (s !=0) ? filesize/(1024.0*1024*(s)) : 0;

  fprintf(stderr,"\nTransfer time = %6.2f secs ",s);
  fprintf(stderr," size = %d   xfer rate = %.2f MB/s (%.2fMb/s)\n",
	  filesize, rate, rate*8);

  for(i=0;i<numtargets;i++)
    close(connectfds[i]);  

  free(connectfds);
  free(targets);
  free(ports);
  exit(TCP_OK);
}
Ejemplo n.º 22
0
/*---------------------------------------------------------------------+
|                               thread ()                              |
| ==================================================================== |
|                                                                      |
| Function:  Recursively creates threads while num < num_threads       |
|                                                                      |
+---------------------------------------------------------------------*/
void *thread(void *parm)
{
	intptr_t num = (intptr_t) parm;
	pthread_t th;
	pthread_attr_t attr;
	size_t stacksize = 1046528;
	int pcrterr;

	/*
	 * Create threads while num < num_threads...
	 */
	if (test_limit || (num < num_threads)) {

		if (pthread_attr_init(&attr))
			sys_error("pthread_attr_init failed", __LINE__);
		if (pthread_attr_setstacksize(&attr, stacksize))
			sys_error("pthread_attr_setstacksize failed", __LINE__);
		if (pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE))
			sys_error("pthread_attr_setdetachstate failed",
				  __LINE__);
		/************************************************/
		/*   pthread_create does not touch errno.  It RETURNS the error
		 *   if it fails.  errno has no bearing on this test, so it was
		 *   removed and replaced with return value check(see man page
		 *   for pthread_create();
		 */
		pcrterr = pthread_create(&th, &attr, thread, (void *)(num + 1));
		if (pcrterr != 0) {
			if (test_limit) {
				tst_resm(TINFO,
					 "Testing pthread limit, %d pthreads created.",
					 (int)num);
				pthread_exit(0);
			}
			if (pcrterr == EAGAIN) {
				tst_resm(TINFO,
					 "Thread [%d]: unable to create more threads!",
					 (int)num);
				return NULL;
			} else
				sys_error("pthread_create failed", __LINE__);
		}
		pthread_join(th, (void *)NULL);
	}

	return 0;
	/*
	   pthread_exit(0);
	 */
}
Ejemplo n.º 23
0
void*	server_worker(void* arg)
{
    sockfd_t sock = 0;
    struct addrinfo *rp;
    for (rp = serv.ai; rp != NULL; rp = rp->ai_next) {
        sock = socket(rp->ai_family, rp->ai_socktype,
                      rp->ai_protocol);
        if (sock < 0) continue;

        int ret = 1;
        int err = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
                             &ret, 4);
        if (err != 0) {
            sys_error("setsockopt: SO_REUSEADDR");
        }

        if (bind(sock, rp->ai_addr, rp->ai_addrlen) == 0) {
            break;
        }
    }

    if (rp == NULL) {
        sys_error("bind");
        goto server_worker_exit;
    }

    if (set_nonblocking(sock) == -1) {
        goto server_worker_exit;
    }

    if (serv.socktype == SOCK_STREAM) {
        if (listen(sock, 5) == -1) {
            sys_error("listen");
            goto server_worker_exit;
        }
    }

    serv.serv_sock = sock;
    struct event evt;
    event_set(&evt, sock, EV_READ | EV_PERSIST, serv.handler, arg);
    event_add(&evt, NULL);
    event_dispatch();

server_worker_exit:
    evt_close(sock);
#ifdef _WIN32
    WSACleanup();
#endif
    return NULL;
}
Ejemplo n.º 24
0
/*---------------------------------------------------------------------+
|                          setup_handler ()                            |
| ==================================================================== |
|                                                                      |
| Function:  Setup the signal handler for SIGPIPE.                     |
|                                                                      |
+---------------------------------------------------------------------*/
void setup_signal_handlers ()
{
	struct sigaction invec;

	invec.sa_handler = (void (*)(int)) handler;
	sigemptyset (&invec.sa_mask);
	invec.sa_flags = 0;

	if (sigaction (SIGINT, &invec, (struct sigaction *) NULL) < 0)
		sys_error ("sigaction failed", __LINE__);

	if (sigaction (SIGPIPE, &invec, (struct sigaction *) NULL) < 0)
		sys_error ("sigaction failed", __LINE__);
}
Ejemplo n.º 25
0
Archivo: stress_cd.c Proyecto: 1587/ltp
static int read_data(int num, unsigned long *cksum)
{
	int fd;
	const int bufSize = 1024;
	char *buffer;
	int bytes_read = 0;
	int n;
	char *p;

	if (debug)
		printf("\tThread [%d]: read_data()\n", num);

	if ((fd = open(file, O_RDONLY, NULL)) < 0)
		sys_error("open failed /dev/cdrom", __LINE__);

	buffer = malloc(sizeof(char) * bufSize);
	assert(buffer);

	lseek(fd, 1024 * 36, SEEK_SET);
	while (bytes_read < num_bytes) {
		n = read(fd, buffer, bufSize);
		if (n < 0)
			sys_error("read failed", __LINE__);
		else if (n == 0)
			sys_error("End of file", __LINE__);
		bytes_read += n;

		for (p = buffer; p < buffer + n; p++)
			*cksum += *p;

		if (debug)
			printf("\tThread [%d] bytes read: %5d checksum: "
			       "%-#12lx\n", num, bytes_read, *cksum);
	}
	free(buffer);

	if (debug)
		printf("\tThread [%d] bytes read: %5d checksum: %-#12lx\n",
		       num, bytes_read, *cksum);

	if (close(fd) < 0)
		sys_error("close failed", __LINE__);

	if (debug)
		printf("\tThread [%d]: done\n", num);

	return (0);
}
Ejemplo n.º 26
0
int mysocket::myconnect(){
    int ret;
    serverlen = sizeof(sockaddr);
    if((ret = ::connect(listenfd, (sockaddr*)&serveraddr, serverlen)) < 0)
        sys_error("connect");
    return ret;
}
Ejemplo n.º 27
0
static int fill(struct channel *ch, struct buffer *bu)
{
    ssize_t res;

    if (!ch->connected)
        return -1;
    if (bu->max == bu->cur)
        return -1;
    if (bu->cur)
        return 0;

    do {
        assert(ch->fd > 0);
        assert(bu->cur < bu->max);
        res = recv(ch->fd, bu->data + bu->cur, bu->max - bu->cur, 0);
    } while (res < 0 && errno == EINTR);

    if (res <= 0) {
        if (res < 0)
            sys_error();
        ch_close(ch);
        return -1;
    }

    bu->cur += res;
    return 0;
}
Ejemplo n.º 28
0
/*---------------------------------------------------------------------+
|                          create_semaphores ()                        |
| ==================================================================== |
|                                                                      |
| Function:  Creates two semaphores:                                   |
|                                                                      |
|            READ_COUNT: shared read semaphore                         |
|            WRITE:      exclusive write semaphore                     |
|                                                                      |
| Updates:   semid - system wide semaphore identifier                  |
|                                                                      |
+---------------------------------------------------------------------*/
static void create_semaphores()
{
	int nsems = 2;		/* Number of semaphores to create */

	/*
	 * Create two system unique semaphores.
	 */
	if ((semid = semget(IPC_PRIVATE, nsems, IPC_CREAT | 0666)) < 0)
		sys_error("semget failed", __LINE__);

	arg.val = 1;
	if (semctl(semid, WRITE, SETVAL, arg) < 0)
		sys_error("semctl (SETVAL) failed", __LINE__);
	if (semctl(semid, READ_COUNT, SETVAL, arg) < 0)
		sys_error("semctl (SETVAL) failed", __LINE__);
}
Ejemplo n.º 29
0
static struct module *mo_load(const char *name, const char *dll_path, const char *args)
{
    struct module *mo;

    mo = mo_find(name);
    if (mo) {
        fprintf(stderr, "module '%s' is already loaded\n", name);
        return NULL;
    }

    mo = calloc(1, sizeof(*mo));
    if (!mo) {
        sys_error();
        return NULL;
    }

    if (dll_open(&mo->mh, dll_path, args))
        goto error;
    mo->name = strdup(name);
    mo->next = module_head;
    module_head = mo;

    printf("MODULE:%s\n", name);
    return mo;
error:
    free(mo);
    return NULL;
}
Ejemplo n.º 30
0
int	rd_right(t_system *sys)
{
  t_cmd	*tmp;
  int	fd;

  tmp = sys->cmd->prev;
  fd = 0;
  delete_link(&(sys->cmd));
  if (sys->cmd == NULL)
    return (0 * printf("error in command line \n"));
  sys->cmd->separator = 2;
  if (rdr_open(sys, &fd) == 0)
    return (0);
  delete_link(&(sys->cmd));
  if (sys_error(close_fd(sys->pipe.pipefd[1])) != 1)
    return (0);
  sys->pipe.pipefd[0] = 0;
  sys->pipe.pipefd[1] = fd;
  if (sys->pipe.last_open == 0)
    sys->pipe.last_open = 1;
  while (sys->cmd != NULL &&
         (sys->cmd->separator == 2 || sys->cmd->separator == 3))
    if (rdr_checkout(sys) == 0)
      return (0);
  sys->cmd = tmp;
  sys->pipe.file = true;
  return (1);
}