/* $Id: udp_echo_srv_sync.c 974 2007-02-19 01:13:53Z bennylp $ *//*  * Copyright (C)2003-2007 Benny Prijono <benny@prijono.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  */#include "test.h"#include <pjlib.h>static pj_atomic_t *total_bytes;static int worker_thread(void *arg){    pj_sock_t    sock = (pj_sock_t)arg;    char         buf[512];    pj_status_t  last_recv_err = PJ_SUCCESS, last_write_err = PJ_SUCCESS;    for (;;) {        pj_ssize_t len;        pj_status_t rc;        pj_sockaddr_in addr;        int addrlen;        len = sizeof(buf);        addrlen = sizeof(addr);        rc = pj_sock_recvfrom(sock, buf, &len, 0, &addr, &addrlen);        if (rc != 0) {            if (rc != last_recv_err) {                app_perror("...recv error", rc);                last_recv_err = rc;            }            continue;        }        pj_atomic_add(total_bytes, len);        rc = pj_sock_sendto(sock, buf, &len, 0, &addr, addrlen);        if (rc != PJ_SUCCESS) {            if (rc != last_write_err) {                app_perror("...send error", rc);                last_write_err = rc;            }            continue;        }    }    return 0;}int echo_srv_sync(void){    pj_pool_t *pool;    pj_sock_t sock;    pj_thread_t *thread[ECHO_SERVER_MAX_THREADS];    pj_status_t rc;    int i;    pool = pj_pool_create(mem, NULL, 4000, 4000, NULL);    if (!pool)        return -5;    rc = pj_atomic_create(pool, 0, &total_bytes);    if (rc != PJ_SUCCESS) {        app_perror("...unable to create atomic_var", rc);        return -6;    }    rc = app_socket(PJ_AF_INET, PJ_SOCK_DGRAM,0, ECHO_SERVER_START_PORT, &sock);    if (rc != PJ_SUCCESS) {        app_perror("...socket error", rc);        return -10;    }    for (i=0; i<ECHO_SERVER_MAX_THREADS; ++i) {        rc = pj_thread_create(pool, NULL, &worker_thread, (void*)sock,                              PJ_THREAD_DEFAULT_STACK_SIZE, 0,                              &thread[i]);        if (rc != PJ_SUCCESS) {            app_perror("...unable to create thread", rc);            return -20;        }    }    PJ_LOG(3,("", "...UDP echo server running with %d threads at port %d",                  ECHO_SERVER_MAX_THREADS, ECHO_SERVER_START_PORT));    PJ_LOG(3,("", "...Press Ctrl-C to abort"));    echo_srv_common_loop(total_bytes);    return 0;}int echo_srv_common_loop(pj_atomic_t *bytes_counter){    pj_highprec_t last_received, avg_bw, highest_bw;    pj_time_val last_print;    unsigned count;    const char *ioqueue_name;    last_received = 0;    pj_gettimeofday(&last_print);    avg_bw = highest_bw = 0;    count = 0;    ioqueue_name = pj_ioqueue_name();    for (;;) {        pj_highprec_t received, cur_received, bw;        unsigned msec;        pj_time_val now, duration;        pj_thread_sleep(1000);        received = cur_received = pj_atomic_get(bytes_counter);        cur_received = cur_received - last_received;        pj_gettimeofday(&now);        duration = now;        PJ_TIME_VAL_SUB(duration, last_print);        msec = PJ_TIME_VAL_MSEC(duration);                bw = cur_received;        pj_highprec_mul(bw, 1000);        pj_highprec_div(bw, msec);        last_print = now;        last_received = received;        avg_bw = avg_bw + bw;        count++;        PJ_LOG(3,("", "%s UDP (%d threads): %u KB/s (avg=%u KB/s) %s", 		  ioqueue_name,                  ECHO_SERVER_MAX_THREADS,                   (unsigned)(bw / 1000),                  (unsigned)(avg_bw / count / 1000),                  (count==20 ? "<ses avg>" : "")));        if (count==20) {            if (avg_bw/count > highest_bw)                highest_bw = avg_bw/count;            count = 0;            avg_bw = 0;            PJ_LOG(3,("", "Highest average bandwidth=%u KB/s",                          (unsigned)(highest_bw/1000)));        }    }    return 0;}