// initialize the zmq PULL socket
static void uwsgi_imperial_monitor_zeromq_init(struct uwsgi_emperor_scanner *ues) {
void *context = uwsgi_zeromq_init();
ues->data = zmq_socket(context, ZMQ_PULL);
if (!ues->data) {
uwsgi_error("zmq_socket()");
exit(1);
}
if (zmq_bind(ues->data, ues->arg+6)) {
uwsgi_error("zmq_socket()");
exit(1);
}
size_t zmq_socket_len = sizeof(int);
if (zmq_getsockopt(ues->data, ZMQ_FD, &ues->fd, &zmq_socket_len) < 0) {
uwsgi_error("zmq_getsockopt()");
exit(1);
}
ues->event_func = uwsgi_imperial_monitor_zeromq_event;
event_queue_add_fd_read(uwsgi.emperor_queue, ues->fd);
}
void uwsgi_zeromq_init_sockets() {
uwsgi_zeromq_init();
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (!uwsgi_sock->proto_name || strcmp(uwsgi_sock->proto_name, "zmq")) {
goto zmq_next;
}
uwsgi_proto_zeromq_setup(uwsgi_sock);
zmq_next:
uwsgi_sock = uwsgi_sock->next;
}
}
// create the logpipe
void create_logpipe(void) {
#if defined(SOCK_SEQPACKET) && defined(__linux__)
if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, uwsgi.shared->worker_log_pipe)) {
#else
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, uwsgi.shared->worker_log_pipe)) {
#endif
uwsgi_error("socketpair()\n");
exit(1);
}
uwsgi_socket_nb(uwsgi.shared->worker_log_pipe[0]);
uwsgi_socket_nb(uwsgi.shared->worker_log_pipe[1]);
if (uwsgi.shared->worker_log_pipe[1] != 1) {
if (dup2(uwsgi.shared->worker_log_pipe[1], 1) < 0) {
uwsgi_error("dup2()");
exit(1);
}
}
if (dup2(1, 2) < 0) {
uwsgi_error("dup2()");
exit(1);
}
}
#ifdef UWSGI_ZEROMQ
// the zeromq logger
ssize_t uwsgi_zeromq_logger(struct uwsgi_logger *ul, char *message, size_t len) {
if (!ul->configured) {
if (!ul->arg) {
uwsgi_log_safe("invalid zeromq syntax\n");
exit(1);
}
void *ctx = uwsgi_zeromq_init();
ul->data = zmq_socket(ctx, ZMQ_PUSH);
if (ul->data == NULL) {
uwsgi_error_safe("zmq_socket()");
exit(1);
}
if (zmq_connect(ul->data, ul->arg) < 0) {
uwsgi_error_safe("zmq_connect()");
exit(1);
}
ul->configured = 1;
}
zmq_msg_t msg;
if (zmq_msg_init_size(&msg, len) == 0) {
memcpy(zmq_msg_data(&msg), message, len);
#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(3,0,0)
zmq_sendmsg(ul->data, &msg, 0);
#else
zmq_send(ul->data, &msg, 0);
#endif
zmq_msg_close(&msg);
}
return 0;
}
#endif
// log to the specified file or udp address
void logto(char *logfile) {
int fd;
#ifdef UWSGI_UDP
char *udp_port;
struct sockaddr_in udp_addr;
udp_port = strchr(logfile, ':');
if (udp_port) {
udp_port[0] = 0;
if (!udp_port[1] || !logfile[0]) {
uwsgi_log("invalid udp address\n");
exit(1);
}
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0) {
uwsgi_error("socket()");
exit(1);
}
memset(&udp_addr, 0, sizeof(struct sockaddr_in));
udp_addr.sin_family = AF_INET;
udp_addr.sin_port = htons(atoi(udp_port + 1));
char *resolved = uwsgi_resolve_ip(logfile);
if (resolved) {
udp_addr.sin_addr.s_addr = inet_addr(resolved);
}
else {
udp_addr.sin_addr.s_addr = inet_addr(logfile);
}
if (connect(fd, (const struct sockaddr *) &udp_addr, sizeof(struct sockaddr_in)) < 0) {
uwsgi_error("connect()");
exit(1);
}
}
else {
#endif
if (uwsgi.log_truncate) {
fd = open(logfile, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP);
}
else {
fd = open(logfile, O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP);
}
if (fd < 0) {
uwsgi_error_open(logfile);
exit(1);
}
uwsgi.logfile = logfile;
if (uwsgi.chmod_logfile_value) {
if (chmod(uwsgi.logfile, uwsgi.chmod_logfile_value)) {
uwsgi_error("chmod()");
}
}
#ifdef UWSGI_UDP
}
#endif
/* stdout */
if (fd != 1) {
if (dup2(fd, 1) < 0) {
uwsgi_error("dup2()");
exit(1);
}
close(fd);
}
/* stderr */
if (dup2(1, 2) < 0) {
uwsgi_error("dup2()");
exit(1);
}
}
