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CONTRIB: tcploop: implement logging when called with -v
This is helpful to show what state we're dealing with. The pid is written, optionally followed by the time in 3 different formats (relative/absolute) depending on the command line option (-t, -tt, -ttt).
This commit is contained in:
Willy Tarreau
parent
95a6b786fc
commit
869c759153
@ -38,6 +38,11 @@ const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
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static char trash[TRASH_SIZE];
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volatile int nbproc = 0;
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static struct timeval start_time;
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static int showtime;
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static int verbose;
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static int pid;
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/* display the message and exit with the code */
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__attribute__((noreturn)) void die(int code, const char *format, ...)
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@ -56,6 +61,52 @@ __attribute__((noreturn)) void usage(int code, const char *arg0)
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die(code, "Usage: %s [<ip>:]port [action*]\n", arg0);
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}
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void dolog(const char *format, ...)
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{
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struct timeval date, tv;
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int delay;
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va_list args;
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if (!verbose)
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return;
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if (showtime) {
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gettimeofday(&date, NULL);
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switch (showtime) {
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case 1: // [msec] relative
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delay = (date.tv_sec - start_time.tv_sec) * 1000000 + date.tv_usec - start_time.tv_usec;
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fprintf(stderr, "[%d] ", delay / 1000);
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break;
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case 2: // [sec.usec] relative
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tv.tv_usec = date.tv_usec - start_time.tv_usec;
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tv.tv_sec = date.tv_sec - start_time.tv_sec;
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if ((signed)tv.tv_sec > 0) {
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if ((signed)tv.tv_usec < 0) {
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tv.tv_usec += 1000000;
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tv.tv_sec--;
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}
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} else if (tv.tv_sec == 0) {
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if ((signed)tv.tv_usec < 0)
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tv.tv_usec = 0;
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} else {
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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}
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fprintf(stderr, "[%d.%06d] ", tv.tv_sec, tv.tv_usec);
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break;
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default: // [sec.usec] absolute
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fprintf(stderr, "[%d.%06d] ", date.tv_sec, date.tv_usec);
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break;
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}
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}
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fprintf(stderr, "%5d ", pid);
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va_start(args, format);
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vfprintf(stderr, format, args);
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va_end(args);
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}
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struct err_msg *alloc_err_msg(int size)
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{
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struct err_msg *err;
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@ -302,11 +353,14 @@ int tcp_recv(int sock, const char *arg)
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if (ret < 0) {
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if (errno == EINTR)
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continue;
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if (errno != EAGAIN)
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if (errno != EAGAIN) {
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dolog("recv %d\n", ret);
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return -1;
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}
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while (!wait_on_fd(sock, POLLIN));
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continue;
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}
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dolog("recv %d\n", ret);
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if (!ret)
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break;
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@ -332,7 +386,7 @@ int tcp_send(int sock, const char *arg)
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if (arg[1]) {
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count = atoi(arg + 1);
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if (count <= 0) {
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if (count < 0) {
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fprintf(stderr, "send count must be >= 0 or unset (was %d)\n", count);
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return -1;
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}
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@ -345,11 +399,14 @@ int tcp_send(int sock, const char *arg)
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if (ret < 0) {
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if (errno == EINTR)
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continue;
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if (errno != EAGAIN)
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if (errno != EAGAIN) {
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dolog("send %d\n", ret);
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return -1;
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}
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while (!wait_on_fd(sock, POLLOUT));
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continue;
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}
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dolog("send %d\n", ret);
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if (!count)
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continue;
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else if (count > 0)
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@ -387,11 +444,14 @@ int tcp_echo(int sock, const char *arg)
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if (rcvd < 0) {
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if (errno == EINTR)
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continue;
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if (errno != EAGAIN)
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if (errno != EAGAIN) {
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dolog("recv %d\n", rcvd);
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return -1;
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}
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while (!wait_on_fd(sock, POLLIN));
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continue;
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}
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dolog("recv %d\n", rcvd);
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if (!rcvd)
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break;
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}
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@ -401,11 +461,14 @@ int tcp_echo(int sock, const char *arg)
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if (ret < 0) {
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if (errno == EINTR)
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continue;
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if (errno != EAGAIN)
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if (errno != EAGAIN) {
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dolog("send %d\n", ret);
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return -1;
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}
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while (!wait_on_fd(sock, POLLOUT));
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continue;
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}
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dolog("send %d\n", ret);
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rcvd -= ret;
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if (rcvd)
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continue;
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@ -446,6 +509,9 @@ int tcp_wait(int sock, const char *arg)
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ret = poll(&pollfd, 1, delay);
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} while (ret == -1 && errno == EINTR);
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if (ret > 0 && pollfd.revents & POLLERR)
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return -1;
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return 0;
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}
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@ -460,6 +526,10 @@ int tcp_wait_in(int sock, const char *arg)
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pollfd.events = POLLIN;
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ret = poll(&pollfd, 1, 1000);
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} while (ret == -1 && errno == EINTR);
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if (ret > 0 && pollfd.revents & POLLERR)
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return -1;
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return 0;
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}
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@ -475,6 +545,9 @@ int tcp_wait_out(int sock, const char *arg)
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ret = poll(&pollfd, 1, 1000);
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} while (ret == -1 && errno == EINTR);
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if (ret > 0 && pollfd.revents & POLLERR)
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return -1;
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/* Now wait for data to leave the socket */
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do {
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if (ioctl(sock, TIOCOUTQ, &ret) < 0)
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@ -539,14 +612,34 @@ int main(int argc, char **argv)
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int sock;
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arg0 = argv[0];
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while (argc > 1 && argv[1][0] == '-') {
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argc--; argv++;
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if (strcmp(argv[0], "-t") == 0)
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showtime++;
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else if (strcmp(argv[0], "-tt") == 0)
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showtime += 2;
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else if (strcmp(argv[0], "-ttt") == 0)
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showtime += 3;
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else if (strcmp(argv[0], "-v") == 0)
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verbose ++;
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else if (strcmp(argv[0], "--") == 0)
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break;
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else
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usage(1, arg0);
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}
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if (argc < 2)
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usage(1, arg0);
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pid = getpid();
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signal(SIGCHLD, sig_handler);
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if (addr_to_ss(argv[1], &ss, &err) < 0)
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die(1, "%s\n", err.msg);
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gettimeofday(&start_time, NULL);
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sock = -1;
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for (arg = 2; arg < argc; arg++) {
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switch (argv[arg][0]) {
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@ -564,6 +657,7 @@ int main(int argc, char **argv)
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sock = tcp_connect(&ss, argv[arg]);
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if (sock < 0)
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die(1, "Fatal: tcp_connect() failed.\n");
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dolog("connect\n");
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break;
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case 'A':
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@ -572,6 +666,7 @@ int main(int argc, char **argv)
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sock = tcp_accept(sock, argv[arg]);
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if (sock < 0)
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die(1, "Fatal: tcp_accept() failed.\n");
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dolog("accept\n");
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break;
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case 'T':
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@ -626,6 +721,7 @@ int main(int argc, char **argv)
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die(1, "Fatal: tcp_wait() on non-socket.\n");
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if (tcp_wait(sock, argv[arg]) < 0)
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die(1, "Fatal: tcp_wait() failed.\n");
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dolog("ready_any\n");
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break;
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case 'I':
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@ -633,6 +729,7 @@ int main(int argc, char **argv)
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die(1, "Fatal: tcp_wait_in() on non-socket.\n");
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if (tcp_wait_in(sock, argv[arg]) < 0)
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die(1, "Fatal: tcp_wait_in() failed.\n");
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dolog("ready_in\n");
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break;
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case 'O':
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@ -640,11 +737,13 @@ int main(int argc, char **argv)
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die(1, "Fatal: tcp_wait_out() on non-socket.\n");
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if (tcp_wait_out(sock, argv[arg]) < 0)
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die(1, "Fatal: tcp_wait_out() failed.\n");
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dolog("ready_out\n");
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break;
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case 'K':
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if (sock < 0 || close(sock) < 0)
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die(1, "Fatal: close() on non-socket.\n");
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dolog("close\n");
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sock = -1;
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break;
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@ -652,6 +751,7 @@ int main(int argc, char **argv)
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/* ignore errors on shutdown() as they are common */
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if (sock >= 0)
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shutdown(sock, SHUT_WR);
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dolog("shutdown\n");
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break;
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case 'N':
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@ -664,6 +764,7 @@ int main(int argc, char **argv)
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continue;
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}
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/* OK we're in the child, let's continue */
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pid = getpid();
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break;
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default:
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usage(1, arg0);
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