int listen_fds[MAX_LISTEN_FDS] = { [0 ... 99] = -1 };
char *listen_fds_names[MAX_LISTEN_FDS] = { [0 ... 99] = NULL };
int listen_port = LISTEN_PORT;
-int web_server_mode = WEB_SERVER_MODE_MULTI_THREADED;
+
+WEB_SERVER_MODE web_server_mode = WEB_SERVER_MODE_MULTI_THREADED;
+
+static int shown_server_socket_error = 0;
#ifdef NETDATA_INTERNAL_CHECKS
static void log_allocations(void)
{
- static int mem = 0;
-
- struct mallinfo mi;
-
- mi = mallinfo();
- if(mi.uordblks > mem) {
- int clients = 0;
- struct web_client *w;
- for(w = web_clients; w ; w = w->next) clients++;
+#ifdef HAVE_C_MALLINFO
+ static int heap = 0, used = 0, mmap = 0;
+
+ struct mallinfo mi;
+
+ mi = mallinfo();
+ if(mi.uordblks > used) {
+ int clients = 0;
+ struct web_client *w;
+ for(w = web_clients; w ; w = w->next) clients++;
+
+ info("Allocated memory: used %d KB (+%d B), mmap %d KB (+%d B), heap %d KB (+%d B). %d web clients connected.",
+ mi.uordblks / 1024,
+ mi.uordblks - used,
+ mi.hblkhd / 1024,
+ mi.hblkhd - mmap,
+ mi.arena / 1024,
+ mi.arena - heap,
+ clients);
+
+ used = mi.uordblks;
+ heap = mi.arena;
+ mmap = mi.hblkhd;
+ }
+#else /* ! HAVE_C_MALLINFO */
+ ;
+#endif /* ! HAVE_C_MALLINFO */
- info("Allocated memory increased from %d to %d (increased by %d bytes). There are %d web clients connected.", mem, mi.uordblks, mi.uordblks - mem, clients);
- mem = mi.uordblks;
- }
-}
+#ifdef has_jemalloc
+ malloc_stats_print(NULL, NULL, NULL);
#endif
+}
+#endif /* NETDATA_INTERNAL_CHECKS */
#ifndef HAVE_ACCEPT4
int accept4(int sock, struct sockaddr *addr, socklen_t *addrlen, int flags) {
- int fd = accept(sock, addr, addrlen);
- int newflags = 0;
-
- if (fd < 0) return fd;
-
- if (flags & SOCK_NONBLOCK) {
- newflags |= O_NONBLOCK;
- flags &= ~SOCK_NONBLOCK;
- }
-
- if (flags & SOCK_CLOEXEC) {
- newflags |= O_CLOEXEC;
- flags &= ~SOCK_CLOEXEC;
- }
-
- if (flags) {
- errno = -EINVAL;
- return -1;
- }
-
- if (fcntl(fd, F_SETFL, newflags) < 0) {
- int saved_errno = errno;
- close(fd);
- errno = saved_errno;
- return -1;
- }
-
- return fd;
+ int fd = accept(sock, addr, addrlen);
+ int newflags = 0;
+
+ if (fd < 0) return fd;
+
+ if (flags & SOCK_NONBLOCK) {
+ newflags |= O_NONBLOCK;
+ flags &= ~SOCK_NONBLOCK;
+ }
+
+#ifdef SOCK_CLOEXEC
+#ifdef O_CLOEXEC
+ if (flags & SOCK_CLOEXEC) {
+ newflags |= O_CLOEXEC;
+ flags &= ~SOCK_CLOEXEC;
+ }
+#endif
+#endif
+
+ if (flags) {
+ errno = -EINVAL;
+ return -1;
+ }
+
+ if (fcntl(fd, F_SETFL, newflags) < 0) {
+ int saved_errno = errno;
+ close(fd);
+ errno = saved_errno;
+ return -1;
+ }
+
+ return fd;
}
#endif
+WEB_SERVER_MODE web_server_mode_id(const char *mode) {
+ if(!strcmp(mode, "none"))
+ return WEB_SERVER_MODE_NONE;
+ else if(!strcmp(mode, "single") || !strcmp(mode, "single-threaded"))
+ return WEB_SERVER_MODE_SINGLE_THREADED;
+ else // if(!strcmp(mode, "multi") || !strcmp(mode, "multi-threaded"))
+ return WEB_SERVER_MODE_MULTI_THREADED;
+}
+
+const char *web_server_mode_name(WEB_SERVER_MODE id) {
+ switch(id) {
+ case WEB_SERVER_MODE_NONE:
+ return "none";
+
+ case WEB_SERVER_MODE_SINGLE_THREADED:
+ return "single-threaded";
+
+ default:
+ case WEB_SERVER_MODE_MULTI_THREADED:
+ return "multi-threaded";
+ }
+}
+
int create_listen_socket4(const char *ip, int port, int listen_backlog) {
- int sock;
- int sockopt = 1;
+ int sock;
+ int sockopt = 1;
- debug(D_LISTENER, "IPv4 creating new listening socket on ip '%s' port %d", ip, port);
+ debug(D_LISTENER, "IPv4 creating new listening socket on ip '%s' port %d", ip, port);
- sock = socket(AF_INET, SOCK_STREAM, 0);
- if(sock < 0) {
- error("IPv4 socket() on ip '%s' port %d failed.", ip, port);
- return -1;
- }
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ if(sock < 0) {
+ error("IPv4 socket() on ip '%s' port %d failed.", ip, port);
+ shown_server_socket_error = 1;
+ return -1;
+ }
- /* avoid "address already in use" */
- if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&sockopt, sizeof(sockopt)) != 0)
- error("Cannot set SO_REUSEADDR on ip '%s' port's %d.", ip, port);
+ /* avoid "address already in use" */
+ if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&sockopt, sizeof(sockopt)) != 0)
+ error("Cannot set SO_REUSEADDR on ip '%s' port's %d.", ip, port);
- struct sockaddr_in name;
- memset(&name, 0, sizeof(struct sockaddr_in));
- name.sin_family = AF_INET;
- name.sin_port = htons (port);
+ struct sockaddr_in name;
+ memset(&name, 0, sizeof(struct sockaddr_in));
+ name.sin_family = AF_INET;
+ name.sin_port = htons (port);
int ret = inet_pton(AF_INET, ip, (void *)&name.sin_addr.s_addr);
if(ret != 1) {
error("Failed to convert IP '%s' to a valid IPv4 address.", ip);
+ shown_server_socket_error = 1;
close(sock);
return -1;
}
- if(bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0) {
- close(sock);
- error("IPv4 bind() on ip '%s' port %d failed.", ip, port);
- return -1;
- }
+ if(bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0) {
+ close(sock);
+ error("IPv4 bind() on ip '%s' port %d failed.", ip, port);
+ shown_server_socket_error = 1;
+ return -1;
+ }
- if(listen(sock, listen_backlog) < 0) {
- close(sock);
- fatal("IPv4 listen() on ip '%s' port %d failed.", ip, port);
- return -1;
- }
+ if(listen(sock, listen_backlog) < 0) {
+ close(sock);
+ error("IPv4 listen() on ip '%s' port %d failed.", ip, port);
+ shown_server_socket_error = 1;
+ return -1;
+ }
- debug(D_LISTENER, "Listening on IPv4 ip '%s' port %d", ip, port);
- return sock;
+ debug(D_LISTENER, "Listening on IPv4 ip '%s' port %d", ip, port);
+ return sock;
}
int create_listen_socket6(const char *ip, int port, int listen_backlog) {
- int sock = -1;
- int sockopt = 1;
+ int sock = -1;
+ int sockopt = 1;
int ipv6only = 1;
- debug(D_LISTENER, "IPv6 creating new listening socket on ip '%s' port %d", ip, port);
+ debug(D_LISTENER, "IPv6 creating new listening socket on ip '%s' port %d", ip, port);
- sock = socket(AF_INET6, SOCK_STREAM, 0);
- if (sock < 0) {
- error("IPv6 socket() on ip '%s' port %d failed.", ip, port);
- return -1;
- }
+ sock = socket(AF_INET6, SOCK_STREAM, 0);
+ if (sock < 0) {
+ error("IPv6 socket() on ip '%s' port %d failed.", ip, port);
+ shown_server_socket_error = 1;
+ return -1;
+ }
/* avoid "address already in use" */
if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&sockopt, sizeof(sockopt)) != 0)
error("Cannot set IPV6_V6ONLY on ip '%s' port's %d.", ip, port);
struct sockaddr_in6 name;
- memset(&name, 0, sizeof(struct sockaddr_in6));
- name.sin6_family = AF_INET6;
- name.sin6_port = htons ((uint16_t) port);
+ memset(&name, 0, sizeof(struct sockaddr_in6));
+ name.sin6_family = AF_INET6;
+ name.sin6_port = htons ((uint16_t) port);
int ret = inet_pton(AF_INET6, ip, (void *)&name.sin6_addr.s6_addr);
if(ret != 1) {
error("Failed to convert IP '%s' to a valid IPv6 address.", ip);
+ shown_server_socket_error = 1;
close(sock);
return -1;
}
- name.sin6_scope_id = 0;
+ name.sin6_scope_id = 0;
- if (bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0) {
- close(sock);
- error("IPv6 bind() on ip '%s' port %d failed.", ip, port);
- return -1;
- }
+ if (bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0) {
+ close(sock);
+ error("IPv6 bind() on ip '%s' port %d failed.", ip, port);
+ shown_server_socket_error = 1;
+ return -1;
+ }
- if (listen(sock, listen_backlog) < 0) {
- close(sock);
- error("IPv6 listen() on ip '%s' port %d failed.", ip, port);
- return -1;
- }
+ if (listen(sock, listen_backlog) < 0) {
+ close(sock);
+ error("IPv6 listen() on ip '%s' port %d failed.", ip, port);
+ shown_server_socket_error = 1;
+ return -1;
+ }
- debug(D_LISTENER, "Listening on IPv6 ip '%s' port %d", ip, port);
- return sock;
+ debug(D_LISTENER, "Listening on IPv6 ip '%s' port %d", ip, port);
+ return sock;
}
static inline int add_listen_socket(int fd, const char *ip, int port) {
if(listen_fds_count >= MAX_LISTEN_FDS) {
error("Too many listening sockets. Failed to add listening socket at ip '%s' port %d", ip, port);
+ shown_server_socket_error = 1;
close(fd);
return -1;
}
}
if (fd == -1)
- error("Cannot bind to ip '%s', port %d", rip, default_port);
+ error("Cannot bind to ip '%s', port %d", rip, rport);
else {
add_listen_socket(fd, rip, rport);
added++;
}
}
- freeaddrinfo(result);
+ freeaddrinfo(result);
return added;
}
int create_listen_sockets(void) {
- listen_backlog = (int) config_get_number("global", "http port listen backlog", LISTEN_BACKLOG);
-
- if(config_exists("global", "bind socket to IP") && !config_exists("global", "bind to"))
- config_rename("global", "bind socket to IP", "bind to");
+ shown_server_socket_error = 0;
- if(config_exists("global", "port") && !config_exists("global", "default port"))
- config_rename("global", "port", "default port");
+ listen_backlog = (int) config_get_number(CONFIG_SECTION_WEB, "listen backlog", LISTEN_BACKLOG);
- listen_port = (int) config_get_number("global", "default port", LISTEN_PORT);
- if(listen_port < 1 || listen_port > 65535) {
- error("Invalid listen port %d given. Defaulting to %d.", listen_port, LISTEN_PORT);
- listen_port = (int) config_set_number("global", "default port", LISTEN_PORT);
- }
- debug(D_OPTIONS, "Default listen port set to %d.", listen_port);
+ listen_port = (int) config_get_number(CONFIG_SECTION_WEB, "default port", LISTEN_PORT);
+ if(listen_port < 1 || listen_port > 65535) {
+ error("Invalid listen port %d given. Defaulting to %d.", listen_port, LISTEN_PORT);
+ listen_port = (int) config_set_number(CONFIG_SECTION_WEB, "default port", LISTEN_PORT);
+ }
+ debug(D_OPTIONS, "Default listen port set to %d.", listen_port);
- char *s = config_get("global", "bind to", "*");
+ char *s = config_get(CONFIG_SECTION_WEB, "bind to", "*");
while(*s) {
char *e = s;
if(!listen_fds_count)
fatal("Cannot listen on any socket. Exiting...");
+ else if(shown_server_socket_error) {
+ size_t i;
+ for(i = 0; i < listen_fds_count ;i++)
+ info("Listen socket %s opened.", listen_fds_names[i]);
+ }
- return (int)listen_fds_count;
+ return (int)listen_fds_count;
}
// --------------------------------------------------------------------------------------
// the main socket listener
static inline void cleanup_web_clients(void) {
- struct web_client *w;
-
- for (w = web_clients; w;) {
- if (w->obsolete) {
- debug(D_WEB_CLIENT, "%llu: Removing client.", w->id);
- // pthread_cancel(w->thread);
- // pthread_join(w->thread, NULL);
- w = web_client_free(w);
+ struct web_client *w;
+
+ for (w = web_clients; w;) {
+ if (w->obsolete) {
+ debug(D_WEB_CLIENT, "%llu: Removing client.", w->id);
+ // pthread_cancel(w->thread);
+ // pthread_join(w->thread, NULL);
+ w = web_client_free(w);
#ifdef NETDATA_INTERNAL_CHECKS
- log_allocations();
+ log_allocations();
#endif
- }
- else w = w->next;
- }
+ }
+ else w = w->next;
+ }
}
// 1. it accepts new incoming requests on our port
#define CLEANUP_EVERY_EVENTS 100
void *socket_listen_main_multi_threaded(void *ptr) {
- (void)ptr;
+ struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
- web_server_mode = WEB_SERVER_MODE_MULTI_THREADED;
- info("Multi-threaded WEB SERVER thread created with task id %d", gettid());
+ web_server_mode = WEB_SERVER_MODE_MULTI_THREADED;
+ info("Multi-threaded WEB SERVER thread created with task id %d", gettid());
- struct web_client *w;
- int retval, counter = 0;
+ struct web_client *w;
+ int retval, counter = 0;
- if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
- error("Cannot set pthread cancel type to DEFERRED.");
+ if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
+ error("Cannot set pthread cancel type to DEFERRED.");
- if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
- error("Cannot set pthread cancel state to ENABLE.");
+ if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
+ error("Cannot set pthread cancel state to ENABLE.");
- if(!listen_fds_count)
- fatal("LISTENER: No sockets to listen to.");
+ if(!listen_fds_count)
+ fatal("LISTENER: No sockets to listen to.");
- struct pollfd *fds = callocz(sizeof(struct pollfd), listen_fds_count);
+ struct pollfd *fds = callocz(sizeof(struct pollfd), listen_fds_count);
- size_t i;
- for(i = 0; i < listen_fds_count ;i++) {
- fds[i].fd = listen_fds[i];
- fds[i].events = POLLIN;
- fds[i].revents = 0;
+ size_t i;
+ for(i = 0; i < listen_fds_count ;i++) {
+ fds[i].fd = listen_fds[i];
+ fds[i].events = POLLIN;
+ fds[i].revents = 0;
info("Listening on '%s'", (listen_fds_names[i])?listen_fds_names[i]:"UNKNOWN");
}
- int timeout = 10 * 1000;
-
- for(;;) {
- // debug(D_WEB_CLIENT, "LISTENER: Waiting...");
- retval = poll(fds, listen_fds_count, timeout);
-
- if(unlikely(retval == -1)) {
- error("LISTENER: poll() failed.");
- continue;
- }
- else if(unlikely(!retval)) {
- debug(D_WEB_CLIENT, "LISTENER: select() timeout.");
- counter = 0;
- cleanup_web_clients();
- continue;
- }
-
- for(i = 0 ; i < listen_fds_count ; i++) {
- short int revents = fds[i].revents;
-
- // check for new incoming connections
- if(revents & POLLIN || revents & POLLPRI) {
- fds[i].revents = 0;
-
- w = web_client_create(fds[i].fd);
- if(unlikely(!w)) {
- // no need for error log - web_client_create already logged the error
- continue;
- }
-
- if(pthread_create(&w->thread, NULL, web_client_main, w) != 0) {
- error("%llu: failed to create new thread for web client.", w->id);
- w->obsolete = 1;
- }
- else if(pthread_detach(w->thread) != 0) {
- error("%llu: Cannot request detach of newly created web client thread.", w->id);
- w->obsolete = 1;
- }
- }
- }
-
- // cleanup unused clients
- counter++;
- if(counter >= CLEANUP_EVERY_EVENTS) {
- counter = 0;
- cleanup_web_clients();
- }
- }
-
- debug(D_WEB_CLIENT, "LISTENER: exit!");
+ int timeout = 10 * 1000;
+
+ for(;;) {
+ // debug(D_WEB_CLIENT, "LISTENER: Waiting...");
+ retval = poll(fds, listen_fds_count, timeout);
+
+ if(unlikely(retval == -1)) {
+ error("LISTENER: poll() failed.");
+ continue;
+ }
+ else if(unlikely(!retval)) {
+ debug(D_WEB_CLIENT, "LISTENER: select() timeout.");
+ counter = 0;
+ cleanup_web_clients();
+ continue;
+ }
+
+ for(i = 0 ; i < listen_fds_count ; i++) {
+ short int revents = fds[i].revents;
+
+ // check for new incoming connections
+ if(revents & POLLIN || revents & POLLPRI) {
+ fds[i].revents = 0;
+
+ w = web_client_create(fds[i].fd);
+ if(unlikely(!w)) {
+ // no need for error log - web_client_create already logged the error
+ continue;
+ }
+
+ if(pthread_create(&w->thread, NULL, web_client_main, w) != 0) {
+ error("%llu: failed to create new thread for web client.", w->id);
+ w->obsolete = 1;
+ }
+ else if(pthread_detach(w->thread) != 0) {
+ error("%llu: Cannot request detach of newly created web client thread.", w->id);
+ w->obsolete = 1;
+ }
+ }
+ }
+
+ // cleanup unused clients
+ counter++;
+ if(counter >= CLEANUP_EVERY_EVENTS) {
+ counter = 0;
+ cleanup_web_clients();
+ }
+ }
+
+ debug(D_WEB_CLIENT, "LISTENER: exit!");
close_listen_sockets();
- return NULL;
+ freez(fds);
+
+ static_thread->enabled = 0;
+ pthread_exit(NULL);
+ return NULL;
}
struct web_client *single_threaded_clients[FD_SETSIZE];
static inline int single_threaded_link_client(struct web_client *w, fd_set *ifds, fd_set *ofds, fd_set *efds, int *max) {
- if(unlikely(w->obsolete || w->dead || (!w->wait_receive && !w->wait_send)))
- return 1;
+ if(unlikely(w->obsolete || w->dead || (!w->wait_receive && !w->wait_send)))
+ return 1;
- if(unlikely(w->ifd < 0 || w->ifd >= FD_SETSIZE || w->ofd < 0 || w->ofd >= FD_SETSIZE)) {
- error("%llu: invalid file descriptor, ifd = %d, ofd = %d (required 0 <= fd < FD_SETSIZE (%d)", w->id, w->ifd, w->ofd, FD_SETSIZE);
- return 1;
- }
+ if(unlikely(w->ifd < 0 || w->ifd >= FD_SETSIZE || w->ofd < 0 || w->ofd >= FD_SETSIZE)) {
+ error("%llu: invalid file descriptor, ifd = %d, ofd = %d (required 0 <= fd < FD_SETSIZE (%d)", w->id, w->ifd, w->ofd, FD_SETSIZE);
+ return 1;
+ }
- FD_SET(w->ifd, efds);
- if(unlikely(*max < w->ifd)) *max = w->ifd;
+ FD_SET(w->ifd, efds);
+ if(unlikely(*max < w->ifd)) *max = w->ifd;
- if(unlikely(w->ifd != w->ofd)) {
- if(*max < w->ofd) *max = w->ofd;
- FD_SET(w->ofd, efds);
- }
+ if(unlikely(w->ifd != w->ofd)) {
+ if(*max < w->ofd) *max = w->ofd;
+ FD_SET(w->ofd, efds);
+ }
- if(w->wait_receive) FD_SET(w->ifd, ifds);
- if(w->wait_send) FD_SET(w->ofd, ofds);
+ if(w->wait_receive) FD_SET(w->ifd, ifds);
+ if(w->wait_send) FD_SET(w->ofd, ofds);
- single_threaded_clients[w->ifd] = w;
- single_threaded_clients[w->ofd] = w;
+ single_threaded_clients[w->ifd] = w;
+ single_threaded_clients[w->ofd] = w;
- return 0;
+ return 0;
}
static inline int single_threaded_unlink_client(struct web_client *w, fd_set *ifds, fd_set *ofds, fd_set *efds) {
- FD_CLR(w->ifd, efds);
- if(unlikely(w->ifd != w->ofd)) FD_CLR(w->ofd, efds);
+ FD_CLR(w->ifd, efds);
+ if(unlikely(w->ifd != w->ofd)) FD_CLR(w->ofd, efds);
- if(w->wait_receive) FD_CLR(w->ifd, ifds);
- if(w->wait_send) FD_CLR(w->ofd, ofds);
+ if(w->wait_receive) FD_CLR(w->ifd, ifds);
+ if(w->wait_send) FD_CLR(w->ofd, ofds);
- single_threaded_clients[w->ifd] = NULL;
- single_threaded_clients[w->ofd] = NULL;
+ single_threaded_clients[w->ifd] = NULL;
+ single_threaded_clients[w->ofd] = NULL;
- if(unlikely(w->obsolete || w->dead || (!w->wait_receive && !w->wait_send)))
- return 1;
+ if(unlikely(w->obsolete || w->dead || (!w->wait_receive && !w->wait_send)))
+ return 1;
- return 0;
+ return 0;
}
void *socket_listen_main_single_threaded(void *ptr) {
- (void)ptr;
+ struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
- web_server_mode = WEB_SERVER_MODE_SINGLE_THREADED;
+ web_server_mode = WEB_SERVER_MODE_SINGLE_THREADED;
- info("Single-threaded WEB SERVER thread created with task id %d", gettid());
+ info("Single-threaded WEB SERVER thread created with task id %d", gettid());
- struct web_client *w;
- int retval;
+ struct web_client *w;
+ int retval;
- if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
- error("Cannot set pthread cancel type to DEFERRED.");
+ if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
+ error("Cannot set pthread cancel type to DEFERRED.");
- if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
- error("Cannot set pthread cancel state to ENABLE.");
+ if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
+ error("Cannot set pthread cancel state to ENABLE.");
- if(!listen_fds_count)
- fatal("LISTENER: no listen sockets available.");
+ if(!listen_fds_count)
+ fatal("LISTENER: no listen sockets available.");
size_t i;
for(i = 0; i < FD_SETSIZE ; i++)
- single_threaded_clients[i] = NULL;
+ single_threaded_clients[i] = NULL;
- fd_set ifds, ofds, efds, rifds, rofds, refds;
- FD_ZERO (&ifds);
- FD_ZERO (&ofds);
- FD_ZERO (&efds);
- int fdmax = 0;
+ fd_set ifds, ofds, efds, rifds, rofds, refds;
+ FD_ZERO (&ifds);
+ FD_ZERO (&ofds);
+ FD_ZERO (&efds);
+ int fdmax = 0;
- for(i = 0; i < listen_fds_count ; i++) {
- if (listen_fds[i] < 0 || listen_fds[i] >= FD_SETSIZE)
- fatal("LISTENER: Listen socket %d is not ready, or invalid.", listen_fds[i]);
+ for(i = 0; i < listen_fds_count ; i++) {
+ if (listen_fds[i] < 0 || listen_fds[i] >= FD_SETSIZE)
+ fatal("LISTENER: Listen socket %d is not ready, or invalid.", listen_fds[i]);
info("Listening on '%s'", (listen_fds_names[i])?listen_fds_names[i]:"UNKNOWN");
- FD_SET(listen_fds[i], &ifds);
- FD_SET(listen_fds[i], &efds);
- if(fdmax < listen_fds[i])
+ FD_SET(listen_fds[i], &ifds);
+ FD_SET(listen_fds[i], &efds);
+ if(fdmax < listen_fds[i])
fdmax = listen_fds[i];
- }
-
- for(;;) {
- debug(D_WEB_CLIENT_ACCESS, "LISTENER: single threaded web server waiting (fdmax = %d)...", fdmax);
-
- struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
- rifds = ifds;
- rofds = ofds;
- refds = efds;
- retval = select(fdmax+1, &rifds, &rofds, &refds, &tv);
-
- if(unlikely(retval == -1)) {
- error("LISTENER: select() failed.");
- continue;
- }
- else if(likely(retval)) {
- debug(D_WEB_CLIENT_ACCESS, "LISTENER: got something.");
-
- for(i = 0; i < listen_fds_count ; i++) {
- if (FD_ISSET(listen_fds[i], &rifds)) {
- debug(D_WEB_CLIENT_ACCESS, "LISTENER: new connection.");
- w = web_client_create(listen_fds[i]);
- if (single_threaded_link_client(w, &ifds, &ofds, &ifds, &fdmax) != 0) {
- web_client_free(w);
- }
- }
- }
-
- for(i = 0 ; i <= (size_t)fdmax ; i++) {
- if(likely(!FD_ISSET(i, &rifds) && !FD_ISSET(i, &rofds) && !FD_ISSET(i, &refds)))
- continue;
-
- w = single_threaded_clients[i];
- if(unlikely(!w))
- continue;
-
- if(unlikely(single_threaded_unlink_client(w, &ifds, &ofds, &efds) != 0)) {
- web_client_free(w);
- continue;
- }
-
- if (unlikely(FD_ISSET(w->ifd, &refds) || FD_ISSET(w->ofd, &refds))) {
- web_client_free(w);
- continue;
- }
-
- if (unlikely(w->wait_receive && FD_ISSET(w->ifd, &rifds))) {
- if (unlikely(web_client_receive(w) < 0)) {
- web_client_free(w);
- continue;
- }
-
- if (w->mode != WEB_CLIENT_MODE_FILECOPY) {
- debug(D_WEB_CLIENT, "%llu: Processing received data.", w->id);
- web_client_process(w);
- }
- }
-
- if (unlikely(w->wait_send && FD_ISSET(w->ofd, &rofds))) {
- if (unlikely(web_client_send(w) < 0)) {
- debug(D_WEB_CLIENT, "%llu: Cannot send data to client. Closing client.", w->id);
- web_client_free(w);
- continue;
- }
- }
-
- if(unlikely(single_threaded_link_client(w, &ifds, &ofds, &efds, &fdmax) != 0)) {
- web_client_free(w);
- }
- }
- }
- else {
- debug(D_WEB_CLIENT_ACCESS, "LISTENER: single threaded web server timeout.");
+ }
+
+ for(;;) {
+ debug(D_WEB_CLIENT_ACCESS, "LISTENER: single threaded web server waiting (fdmax = %d)...", fdmax);
+
+ struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
+ rifds = ifds;
+ rofds = ofds;
+ refds = efds;
+ retval = select(fdmax+1, &rifds, &rofds, &refds, &tv);
+
+ if(unlikely(retval == -1)) {
+ error("LISTENER: select() failed.");
+ continue;
+ }
+ else if(likely(retval)) {
+ debug(D_WEB_CLIENT_ACCESS, "LISTENER: got something.");
+
+ for(i = 0; i < listen_fds_count ; i++) {
+ if (FD_ISSET(listen_fds[i], &rifds)) {
+ debug(D_WEB_CLIENT_ACCESS, "LISTENER: new connection.");
+ w = web_client_create(listen_fds[i]);
+ if (single_threaded_link_client(w, &ifds, &ofds, &ifds, &fdmax) != 0) {
+ web_client_free(w);
+ }
+ }
+ }
+
+ for(i = 0 ; i <= (size_t)fdmax ; i++) {
+ if(likely(!FD_ISSET(i, &rifds) && !FD_ISSET(i, &rofds) && !FD_ISSET(i, &refds)))
+ continue;
+
+ w = single_threaded_clients[i];
+ if(unlikely(!w))
+ continue;
+
+ if(unlikely(single_threaded_unlink_client(w, &ifds, &ofds, &efds) != 0)) {
+ web_client_free(w);
+ continue;
+ }
+
+ if (unlikely(FD_ISSET(w->ifd, &refds) || FD_ISSET(w->ofd, &refds))) {
+ web_client_free(w);
+ continue;
+ }
+
+ if (unlikely(w->wait_receive && FD_ISSET(w->ifd, &rifds))) {
+ if (unlikely(web_client_receive(w) < 0)) {
+ web_client_free(w);
+ continue;
+ }
+
+ if (w->mode != WEB_CLIENT_MODE_FILECOPY) {
+ debug(D_WEB_CLIENT, "%llu: Processing received data.", w->id);
+ web_client_process_request(w);
+ }
+ }
+
+ if (unlikely(w->wait_send && FD_ISSET(w->ofd, &rofds))) {
+ if (unlikely(web_client_send(w) < 0)) {
+ debug(D_WEB_CLIENT, "%llu: Cannot send data to client. Closing client.", w->id);
+ web_client_free(w);
+ continue;
+ }
+ }
+
+ if(unlikely(single_threaded_link_client(w, &ifds, &ofds, &efds, &fdmax) != 0)) {
+ web_client_free(w);
+ }
+ }
+ }
+ else {
+ debug(D_WEB_CLIENT_ACCESS, "LISTENER: single threaded web server timeout.");
#ifdef NETDATA_INTERNAL_CHECKS
- log_allocations();
+ log_allocations();
#endif
- }
- }
+ }
+ }
- debug(D_WEB_CLIENT, "LISTENER: exit!");
+ debug(D_WEB_CLIENT, "LISTENER: exit!");
close_listen_sockets();
- return NULL;
+
+ static_thread->enabled = 0;
+ pthread_exit(NULL);
+ return NULL;
}
projects / netdata.git / blobdiff