diff --git a/test/cpghum.c b/test/cpghum.c index 7c007d0c..c31244c8 100644 --- a/test/cpghum.c +++ b/test/cpghum.c @@ -1,851 +1,848 @@ /* * Copyright (c) 2015-2017 Red Hat, Inc. * * All rights reserved. * * Author: Christine Caulfield * * This software licensed under BSD license, the text of which follows: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * - 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. * - Neither the name of the MontaVista Software, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static cpg_handle_t handle; static pthread_t thread; #ifndef timersub #define timersub(a, b, result) \ do { \ (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ if ((result)->tv_usec < 0) { \ --(result)->tv_sec; \ (result)->tv_usec += 1000000; \ } \ } while (0) #endif /* timersub */ static int alarm_notice; #define MAX_NODEID 65536 #define ONE_MEG 1048576 #define DATASIZE (ONE_MEG*20) static char data[DATASIZE]; static int send_counter = 0; static int do_syslog = 0; static int quiet = 0; static int report_rtt = 0; static int abort_on_error = 0; static int machine_readable = 0; static char delimiter = ','; static int to_stderr = 0; static unsigned int g_our_nodeid; static volatile int stopped; static unsigned int flood_start = 64; static unsigned int flood_multiplier = 5; static unsigned long flood_max = (ONE_MEG - 100); // stats static unsigned int length_errors=0; static unsigned int crc_errors=0; static unsigned int sequence_errors=0; static unsigned int packets_sent=0; static unsigned int packets_recvd=0; static unsigned int packets_recvd1=0; /* For flood intermediates */ static unsigned int send_retries=0; static unsigned int send_fails=0; static unsigned long avg_rtt=0; static unsigned long max_rtt=0; static unsigned long min_rtt=LONG_MAX; static unsigned long interim_avg_rtt=0; static unsigned long interim_max_rtt=0; static unsigned long interim_min_rtt=LONG_MAX; struct cpghum_header { unsigned int counter; unsigned int crc; unsigned int size; struct timeval timestamp; }; static void cpg_bm_confchg_fn ( cpg_handle_t handle_in, const struct cpg_name *group_name, const struct cpg_address *member_list, size_t member_list_entries, const struct cpg_address *left_list, size_t left_list_entries, const struct cpg_address *joined_list, size_t joined_list_entries) { } static unsigned int g_recv_count; static unsigned int g_recv_length; static int g_recv_start[MAX_NODEID+1]; static int g_recv_counter[MAX_NODEID+1]; static int g_recv_size[MAX_NODEID+1]; static int g_log_mask = 0xFFFF; typedef enum { CPGH_LOG_INFO = 1, CPGH_LOG_PERF = 2, CPGH_LOG_RTT = 4, CPGH_LOG_STATS = 8, CPGH_LOG_ERR = 16 } log_type_t; static void cpgh_print_message(int syslog_level, const char *facility_name, const char *format, va_list ap) __attribute__((format(printf, 3, 0))); static void cpgh_log_printf(log_type_t type, const char *format, ...) __attribute__((format(printf, 2, 3))); static void cpgh_print_message(int syslog_level, const char *facility_name, const char *format, va_list ap) { char msg[1024]; int start = 0; if (machine_readable) { snprintf(msg, sizeof(msg), "%s%c", facility_name, delimiter); start = strlen(msg); } assert(vsnprintf(msg+start, sizeof(msg)-start, format, ap) < sizeof(msg)-start); if (to_stderr || (syslog_level <= LOG_ERR)) { fprintf(stderr, "%s", msg); } else { printf("%s", msg); } if (do_syslog) { syslog(syslog_level, "%s", msg); } } static void cpgh_log_printf(log_type_t type, const char *format, ...) { va_list ap; if (!(type & g_log_mask)) { return; } va_start(ap, format); switch (type) { case CPGH_LOG_INFO: cpgh_print_message(LOG_INFO, "[Info]", format, ap); break; case CPGH_LOG_PERF: cpgh_print_message(LOG_INFO, "[Perf]", format, ap); break; case CPGH_LOG_RTT: cpgh_print_message(LOG_INFO, "[RTT]", format, ap); break; case CPGH_LOG_STATS: cpgh_print_message(LOG_INFO, "[Stats]", format, ap); break; case CPGH_LOG_ERR: cpgh_print_message(LOG_ERR, "[Err]", format, ap); break; default: break; } va_end(ap); } static unsigned long update_rtt(struct timeval *header_timestamp, int packet_count, unsigned long *rtt_min, unsigned long *rtt_avg, unsigned long *rtt_max) { struct timeval tv1; struct timeval rtt; unsigned long rtt_usecs; gettimeofday (&tv1, NULL); timersub(&tv1, header_timestamp, &rtt); rtt_usecs = rtt.tv_usec + rtt.tv_sec*1000000; if (rtt_usecs > *rtt_max) { *rtt_max = rtt_usecs; } if (rtt_usecs < *rtt_min) { *rtt_min = rtt_usecs; } /* Don't start the average with 0 */ if (*rtt_avg == 0) { *rtt_avg = rtt_usecs; } else { *rtt_avg = ((*rtt_avg * packet_count) + rtt_usecs) / (packet_count+1); } return rtt_usecs; } static void cpg_bm_deliver_fn ( cpg_handle_t handle_in, const struct cpg_name *group_name, uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len) { uLong crc=0; struct cpghum_header *header = (struct cpghum_header *)msg; uLong recv_crc = header->crc & 0xFFFFFFFF; unsigned int *dataint = (unsigned int *)((char*)msg + sizeof(struct cpghum_header)); unsigned int datalen; if (nodeid > MAX_NODEID) { cpgh_log_printf(CPGH_LOG_ERR, "Got message from invalid nodeid " CS_PRI_NODE_ID " (too high for us). Quitting\n", nodeid); exit(1); } packets_recvd++; packets_recvd1++; g_recv_length = msg_len; datalen = header->size - sizeof(struct cpghum_header); // Report RTT first in case abort_on_error is set if (nodeid == g_our_nodeid) { unsigned long rtt_usecs; // For flood update_rtt(&header->timestamp, packets_recvd1, &interim_min_rtt, &interim_avg_rtt, &interim_max_rtt); rtt_usecs = update_rtt(&header->timestamp, g_recv_counter[nodeid], &min_rtt, &avg_rtt, &max_rtt); if (report_rtt) { if (machine_readable) { cpgh_log_printf(CPGH_LOG_RTT, "%ld%c%ld%c%ld%c%ld\n", rtt_usecs, delimiter, min_rtt, delimiter, avg_rtt, delimiter, max_rtt); } else { cpgh_log_printf(CPGH_LOG_RTT, "%s: RTT %ld uS (min/avg/max): %ld/%ld/%ld\n", group_name->value, rtt_usecs, min_rtt, avg_rtt, max_rtt); } } } // Basic check, packets should all be the right size if (msg_len != header->size) { length_errors++; cpgh_log_printf(CPGH_LOG_ERR, "%s: message sizes don't match. got %zu, expected %u from node " CS_PRI_NODE_ID "\n", group_name->value, msg_len, header->size, nodeid); if (abort_on_error) { exit(2); } } g_recv_size[nodeid] = msg_len; // Sequence counters are incrementing in step? if (header->counter != g_recv_counter[nodeid]) { /* Don't report the first mismatch or a newly restarted sender, we're just catching up */ if (g_recv_counter[nodeid] && header->counter) { sequence_errors++; cpgh_log_printf(CPGH_LOG_ERR, "%s: counters don't match. got %d, expected %d from node " CS_PRI_NODE_ID "\n", group_name->value, header->counter, g_recv_counter[nodeid], nodeid); if (abort_on_error) { exit(2); } } else { g_recv_start[nodeid] = header->counter; } /* Catch up or we'll be printing errors for ever */ g_recv_counter[nodeid] = header->counter+1; } else { g_recv_counter[nodeid]++; } /* Check crc */ crc = crc32(0, NULL, 0); crc = crc32(crc, (Bytef *)dataint, datalen) & 0xFFFFFFFF; if (crc != recv_crc) { crc_errors++; cpgh_log_printf(CPGH_LOG_ERR, "%s: CRCs don't match. got %lx, expected %lx from nodeid " CS_PRI_NODE_ID "\n", group_name->value, recv_crc, crc, nodeid); if (abort_on_error) { exit(2); } } g_recv_count++; } static cpg_model_v1_data_t model1_data = { .cpg_deliver_fn = cpg_bm_deliver_fn, .cpg_confchg_fn = cpg_bm_confchg_fn, }; static cpg_callbacks_t callbacks = { .cpg_deliver_fn = cpg_bm_deliver_fn, .cpg_confchg_fn = cpg_bm_confchg_fn }; static struct cpg_name group_name = { .value = "cpghum", .length = 7 }; static void set_packet(int write_size, int counter) { struct cpghum_header *header = (struct cpghum_header *)data; int i; unsigned int *dataint = (unsigned int *)(data + sizeof(struct cpghum_header)); unsigned int datalen = write_size - sizeof(struct cpghum_header); struct timeval tv1; uLong crc; header->counter = counter; for (i=0; i<(datalen/4); i++) { dataint[i] = rand(); } crc = crc32(0, NULL, 0); header->crc = crc32(crc, (Bytef*)&dataint[0], datalen); header->size = write_size; gettimeofday (&tv1, NULL); memcpy(&header->timestamp, &tv1, sizeof(struct timeval)); } /* Basically this is cpgbench.c */ static void cpg_flood ( cpg_handle_t handle_in, int write_size) { struct timeval tv1, tv2, tv_elapsed; struct iovec iov; unsigned int res = CS_OK; alarm_notice = 0; iov.iov_base = data; iov.iov_len = write_size; alarm (10); packets_recvd1 = 0; interim_avg_rtt = 0; interim_max_rtt = 0; interim_min_rtt = LONG_MAX; gettimeofday (&tv1, NULL); do { if (res == CS_OK) { set_packet(write_size, send_counter); } res = cpg_mcast_joined (handle_in, CPG_TYPE_AGREED, &iov, 1); if (res == CS_OK) { /* Only increment the packet counter if it was sucessfully sent */ packets_sent++; send_counter++; } else { if (res == CS_ERR_TRY_AGAIN) { send_retries++; } else { send_fails++; } } } while (!stopped && alarm_notice == 0 && (res == CS_OK || res == CS_ERR_TRY_AGAIN)); gettimeofday (&tv2, NULL); timersub (&tv2, &tv1, &tv_elapsed); if (!quiet) { if (machine_readable) { cpgh_log_printf (CPGH_LOG_PERF, "%d%c%d%c%f%c%f%c%f%c%ld%c%ld%c%ld\n", packets_recvd1, delimiter, write_size, delimiter, (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)), delimiter, ((float)packets_recvd1) / (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)), delimiter, ((float)packets_recvd1) * ((float)write_size) / ((tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)) * 1000000.0), delimiter, interim_min_rtt, delimiter, interim_avg_rtt, delimiter, interim_max_rtt); } else { cpgh_log_printf (CPGH_LOG_PERF, "%5d messages received ", packets_recvd1); cpgh_log_printf (CPGH_LOG_PERF, "%5d bytes per write ", write_size); cpgh_log_printf (CPGH_LOG_PERF, "%7.3f Seconds runtime ", (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0))); cpgh_log_printf (CPGH_LOG_PERF, "%9.3f TP/s ", ((float)packets_recvd1) / (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0))); cpgh_log_printf (CPGH_LOG_PERF, "%7.3f MB/s ", ((float)packets_recvd1) * ((float)write_size) / ((tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)) * 1000000.0)); cpgh_log_printf (CPGH_LOG_PERF, "RTT for this size (min/avg/max) %ld/%ld/%ld\n", interim_min_rtt, interim_avg_rtt, interim_max_rtt); } } } static void cpg_test ( cpg_handle_t handle_in, int write_size, int delay_time, int print_time) { - struct timeval tv1, tv2, tv_elapsed; struct iovec iov; unsigned int res; alarm_notice = 0; iov.iov_base = data; iov.iov_len = write_size; g_recv_count = 0; alarm (print_time); do { send_counter++; resend: set_packet(write_size, send_counter); res = cpg_mcast_joined (handle_in, CPG_TYPE_AGREED, &iov, 1); if (res == CS_ERR_TRY_AGAIN) { usleep(10000); send_retries++; goto resend; } if (res != CS_OK) { cpgh_log_printf(CPGH_LOG_ERR, "send failed: %d\n", res); send_fails++; } else { packets_sent++; } usleep(delay_time*1000); } while (alarm_notice == 0 && (res == CS_OK || res == CS_ERR_TRY_AGAIN) && stopped == 0); - gettimeofday (&tv2, NULL); - timersub (&tv2, &tv1, &tv_elapsed); if (!quiet) { if (machine_readable) { cpgh_log_printf(CPGH_LOG_RTT, "%d%c%ld%c%ld%c%ld\n", 0, delimiter, min_rtt, delimiter, avg_rtt, delimiter, max_rtt); } else { cpgh_log_printf(CPGH_LOG_PERF, "%s: %5d message%s received, ", group_name.value, g_recv_count, g_recv_count==1?"":"s"); cpgh_log_printf(CPGH_LOG_PERF, "%5d bytes per write. ", write_size); cpgh_log_printf(CPGH_LOG_RTT, "RTT min/avg/max: %ld/%ld/%ld\n", min_rtt, avg_rtt, max_rtt); } } } static void sigalrm_handler (int num) { alarm_notice = 1; } static void sigint_handler (int num) { stopped = 1; } static void* dispatch_thread (void *arg) { cpg_dispatch (handle, CS_DISPATCH_BLOCKING); return NULL; } static void usage(char *cmd) { fprintf(stderr, "%s [OPTIONS]\n", cmd); fprintf(stderr, "\n"); fprintf(stderr, "%s sends CPG messages to all registered users of the CPG.\n", cmd); fprintf(stderr, "The messages have a sequence number and a CRC so that missing or\n"); fprintf(stderr, "corrupted messages will be detected and reported.\n"); fprintf(stderr, "\n"); fprintf(stderr, "%s can also be asked to simply listen for (and check) packets\n", cmd); fprintf(stderr, "so that there is another node in the cluster connected to the CPG.\n"); fprintf(stderr, "\n"); fprintf(stderr, "Multiple copies, in different CPGs, can also be run on the same or\n"); fprintf(stderr, "different nodes by using the -n option.\n"); fprintf(stderr, "\n"); fprintf(stderr, "%s can handle more than 1 sender in the same CPG provided they are on\n", cmd); fprintf(stderr, "different nodes.\n"); fprintf(stderr, "\n"); fprintf(stderr, " -w, --size-bytes Write size in Kbytes, default 4\n"); fprintf(stderr, " -W, --size-kb Write size in bytes, default 4096\n"); fprintf(stderr, " -n, --name CPG name to use, default 'cpghum'\n"); fprintf(stderr, " -M Write machine-readable results\n"); fprintf(stderr, " -D Delimiter for machine-readable results (default ',')\n"); fprintf(stderr, " -E Send normal output to stderr instead of stdout\n"); fprintf(stderr, " -d, --delay Delay between sending packets (mS), default 1000\n"); fprintf(stderr, " -r Number of repetitions, default 100\n"); fprintf(stderr, " -p Delay between printing output (seconds), default 10s\n"); fprintf(stderr, " -l, --listen Listen and check CRCs only, don't send (^C to quit)\n"); fprintf(stderr, " -t, --rtt Report Round Trip Times for each packet.\n"); fprintf(stderr, " -m cpg_initialise() model. Default 1.\n"); fprintf(stderr, " -s Also send errors to syslog.\n"); fprintf(stderr, " -f, --flood Flood test CPG (cpgbench). see --flood-* long options\n"); fprintf(stderr, " -a Abort on crc/length/sequence error\n"); fprintf(stderr, " -q, --quiet Quiet. Don't print messages every 10s (see also -p)\n"); fprintf(stderr, " -qq Very quiet. Don't print stats at the end\n"); fprintf(stderr, " --flood-start=bytes Start value for --flood\n"); fprintf(stderr, " --flood-mult=value Packet size multiplier value for --flood\n"); fprintf(stderr, " --flood-max=bytes Maximum packet size for --flood\n"); fprintf(stderr, "\n"); fprintf(stderr, " values for --flood* and -W can have K or M suffixes to indicate\n"); fprintf(stderr, " Kilobytes or Megabytes\n"); fprintf(stderr, "\n"); fprintf(stderr, "%s exit code is 0 if no error happened, 1 on generic error and 2 on\n", cmd); fprintf(stderr, "send/crc/length/sequence error"); fprintf(stderr, "\n"); } /* Parse a size, optionally ending in 'K', 'M' */ static long parse_bytes(const char *valstring) { unsigned int value; int multiplier = 1; char suffix = '\0'; int have_suffix = 0; /* Suffix is optional */ if (sscanf(valstring, "%u%c", &value, &suffix) == 0) { return 0; } if (toupper(suffix) == 'M') { multiplier = 1024*1024; have_suffix = 1; } if (toupper(suffix) == 'K') { multiplier = 1024; have_suffix = 1; } if (!have_suffix && suffix != '\0') { fprintf(stderr, "Invalid suffix '%c', only K or M supported\n", suffix); return 0; } return value * multiplier; } int main (int argc, char *argv[]) { int i; unsigned int res; uint32_t maxsize; int opt; int bs; int write_size = 4096; int delay_time = 1000; int repetitions = 100; int print_time = 10; int have_size = 0; int listen_only = 0; int flood = 0; int model = 1; int option_index = 0; struct option long_options[] = { {"flood-start", required_argument, 0, 0 }, {"flood-mult", required_argument, 0, 0 }, {"flood-max", required_argument, 0, 0 }, {"size-kb", required_argument, 0, 'w' }, {"size-bytes", required_argument, 0, 'W' }, {"name", required_argument, 0, 'n' }, {"rtt", no_argument, 0, 't' }, {"flood", no_argument, 0, 'f' }, {"quiet", no_argument, 0, 'q' }, {"listen", no_argument, 0, 'l' }, {"help", no_argument, 0, '?' }, {0, 0, 0, 0 } }; while ( (opt = getopt_long(argc, argv, "qlstafMEn:d:r:p:m:w:W:D:", long_options, &option_index)) != -1 ) { switch (opt) { case 0: // Long-only options if (strcmp(long_options[option_index].name, "flood-start") == 0) { flood_start = parse_bytes(optarg); if (flood_start == 0) { fprintf(stderr, "flood-start value invalid\n"); exit(1); } } if (strcmp(long_options[option_index].name, "flood-mult") == 0) { flood_multiplier = parse_bytes(optarg); if (flood_multiplier == 0) { fprintf(stderr, "flood-mult value invalid\n"); exit(1); } } if (strcmp(long_options[option_index].name, "flood-max") == 0) { flood_max = parse_bytes(optarg); if (flood_max == 0) { fprintf(stderr, "flood-max value invalid\n"); exit(1); } } break; case 'w': // Write size in K bs = atoi(optarg); if (bs > 0) { write_size = bs*1024; have_size = 1; } break; case 'W': // Write size in bytes (or with a suffix) bs = parse_bytes(optarg); if (bs > 0) { write_size = bs; have_size = 1; } break; case 'n': if (strlen(optarg) >= CPG_MAX_NAME_LENGTH) { fprintf(stderr, "CPG name too long\n"); exit(1); } strcpy(group_name.value, optarg); group_name.length = strlen(group_name.value); break; case 't': report_rtt = 1; break; case 'E': to_stderr = 1; break; case 'M': machine_readable = 1; break; case 'f': flood = 1; break; case 'a': abort_on_error = 1; break; case 'd': delay_time = atoi(optarg); break; case 'D': delimiter = optarg[0]; break; case 'r': repetitions = atoi(optarg); break; case 'p': print_time = atoi(optarg); break; case 'l': listen_only = 1; break; case 's': do_syslog = 1; break; case 'q': quiet++; break; case 'm': model = atoi(optarg); if (model < 0 || model > 1) { fprintf(stderr, "%s: Model must be 0-1\n", argv[0]); exit(1); } break; case '?': usage(basename(argv[0])); exit(1); } } if (!have_size && flood) { write_size = flood_start; } signal (SIGALRM, sigalrm_handler); signal (SIGINT, sigint_handler); switch (model) { case 0: res = cpg_initialize (&handle, &callbacks); break; case 1: res = cpg_model_initialize (&handle, CPG_MODEL_V1, (cpg_model_data_t *)&model1_data, NULL); break; default: res=999; // can't get here but it keeps the compiler happy break; } if (res != CS_OK) { cpgh_log_printf(CPGH_LOG_ERR, "cpg_initialize failed with result %d\n", res); exit (1); } res = cpg_local_get(handle, &g_our_nodeid); if (res != CS_OK) { cpgh_log_printf(CPGH_LOG_ERR, "cpg_local_get failed with result %d\n", res); exit (1); } pthread_create (&thread, NULL, dispatch_thread, NULL); res = cpg_join (handle, &group_name); if (res != CS_OK) { cpgh_log_printf(CPGH_LOG_ERR, "cpg_join failed with result %d\n", res); exit (1); } if (listen_only) { int secs = 0; while (!stopped) { sleep(1); if (++secs > print_time && !quiet) { int nodes_printed = 0; if (!machine_readable) { for (i=1; i 1) { cpgh_log_printf(CPGH_LOG_INFO, "\n"); } secs = 0; } } } else { cpg_max_atomic_msgsize_get (handle, &maxsize); if (write_size > maxsize) { fprintf(stderr, "INFO: packet size (%d) is larger than the maximum atomic size (%d), libcpg will fragment\n", write_size, maxsize); } /* The main job starts here */ if (flood) { for (i = 0; i < 10; i++) { /* number of repetitions - up to 50k */ cpg_flood (handle, write_size); signal (SIGALRM, sigalrm_handler); write_size *= flood_multiplier; if (write_size > flood_max) { break; } } } else { send_counter = -1; /* So we start from zero to allow listeners to sync */ for (i = 0; i < repetitions && !stopped; i++) { cpg_test (handle, write_size, delay_time, print_time); signal (SIGALRM, sigalrm_handler); } } } res = cpg_finalize (handle); if (res != CS_OK) { cpgh_log_printf(CPGH_LOG_ERR, "cpg_finalize failed with result %d\n", res); exit (1); } if (quiet < 2) { /* Don't print LONG_MAX for min_rtt if we don't have a value */ if (min_rtt == LONG_MAX) { min_rtt = 0L; } if (machine_readable) { cpgh_log_printf(CPGH_LOG_STATS, "%d%c%d%c%d%c%d%c%d%c%d%c%d%c%ld%c%ld%c%ld\n", packets_sent, delimiter, send_fails, delimiter, send_retries, delimiter, length_errors, delimiter, packets_recvd, delimiter, sequence_errors, delimiter, crc_errors, delimiter, min_rtt, delimiter, avg_rtt, delimiter, max_rtt); } else { cpgh_log_printf(CPGH_LOG_STATS, "\n"); cpgh_log_printf(CPGH_LOG_STATS, "Stats:\n"); if (!listen_only) { cpgh_log_printf(CPGH_LOG_STATS, " packets sent: %d\n", packets_sent); cpgh_log_printf(CPGH_LOG_STATS, " send failures: %d\n", send_fails); cpgh_log_printf(CPGH_LOG_STATS, " send retries: %d\n", send_retries); } cpgh_log_printf(CPGH_LOG_STATS, " length errors: %d\n", length_errors); cpgh_log_printf(CPGH_LOG_STATS, " packets recvd: %d\n", packets_recvd); cpgh_log_printf(CPGH_LOG_STATS, " sequence errors: %d\n", sequence_errors); cpgh_log_printf(CPGH_LOG_STATS, " crc errors: %d\n", crc_errors); if (!listen_only) { cpgh_log_printf(CPGH_LOG_STATS, " min RTT: %ld\n", min_rtt); cpgh_log_printf(CPGH_LOG_STATS, " max RTT: %ld\n", max_rtt); cpgh_log_printf(CPGH_LOG_STATS, " avg RTT: %ld\n", avg_rtt); } cpgh_log_printf(CPGH_LOG_STATS, "\n"); } } res = 0; if (send_fails > 0 || (have_size && length_errors > 0) || sequence_errors > 0 || crc_errors > 0) { res = 2; } return (res); }