// this is the monitor for glob patterns
void uwsgi_imperial_monitor_glob(struct uwsgi_emperor_scanner *ues) {
glob_t g;
int i;
struct stat st;
struct uwsgi_instance *ui_current;
if (glob(ues->arg, GLOB_MARK | GLOB_NOCHECK, NULL, &g)) {
uwsgi_error("glob()");
return;
}
for (i = 0; i < (int) g.gl_pathc; i++) {
if (!uwsgi_emperor_is_valid(g.gl_pathv[i]))
continue;
if (stat(g.gl_pathv[i], &st))
continue;
if (!S_ISREG(st.st_mode))
continue;
ui_current = emperor_get(g.gl_pathv[i]);
uid_t t_uid = st.st_uid;
gid_t t_gid = st.st_gid;
if (uwsgi.emperor_tyrant && uwsgi.emperor_tyrant_nofollow) {
struct stat lst;
if (lstat(g.gl_pathv[i], &lst)) {
uwsgi_error("[emperor-tyrant]/lstat()");
if (ui_current) {
uwsgi_log("!!! availability of file %s changed. stopping the instance... !!!\n", g.gl_pathv[i]);
emperor_stop(ui_current);
}
continue;
}
t_uid = lst.st_uid;
t_gid = lst.st_gid;
}
if (ui_current) {
// check if uid or gid are changed, in such case, stop the instance
if (uwsgi.emperor_tyrant) {
if (t_uid != ui_current->uid || t_gid != ui_current->gid) {
uwsgi_log("!!! permissions of file %s changed. stopping the instance... !!!\n", g.gl_pathv[i]);
emperor_stop(ui_current);
continue;
}
}
// check if mtime is changed and the uWSGI instance must be reloaded
if (st.st_mtime > ui_current->last_mod) {
emperor_respawn(ui_current, st.st_mtime);
}
}
else {
char *socket_name = emperor_check_on_demand_socket(g.gl_pathv[i]);
emperor_add(ues, g.gl_pathv[i], st.st_mtime, NULL, 0, t_uid, t_gid, socket_name);
if (socket_name) free(socket_name);
}
}
globfree(&g);
// now check for removed instances
struct uwsgi_instance *c_ui = ui->ui_next;
while (c_ui) {
if (c_ui->scanner == ues) {
if (c_ui->zerg) {
char *colon = strrchr(c_ui->name, ':');
if (!colon) {
emperor_stop(c_ui);
}
else {
char *filename = uwsgi_calloc(0xff);
memcpy(filename, c_ui->name, colon - c_ui->name);
if (stat(filename, &st)) {
emperor_stop(c_ui);
}
free(filename);
}
}
else {
if (stat(c_ui->name, &st)) {
emperor_stop(c_ui);
}
}
}
c_ui = c_ui->ui_next;
}
}
void emperor_add(struct uwsgi_emperor_scanner *ues, char *name, time_t born, char *config, uint32_t config_size, uid_t uid, gid_t gid, char *socket_name) {
struct uwsgi_instance *c_ui = ui;
struct uwsgi_instance *n_ui = NULL;
struct timeval tv;
#ifdef UWSGI_DEBUG
uwsgi_log("\n\nVASSAL %s %d %.*s %d %d\n", name, born, config_size, config, uid, gid);
#endif
if (strlen(name) > (0xff - 1)) {
uwsgi_log("[emperor] invalid vassal name: %s\n", name);
return;
}
gettimeofday(&tv, NULL);
int now = tv.tv_sec;
uint64_t micros = (tv.tv_sec * 1000 * 1000) + tv.tv_usec;
// blacklist check
struct uwsgi_emperor_blacklist_item *uebi = uwsgi_emperor_blacklist_check(name);
if (uebi) {
uint64_t i_micros = (uebi->last_attempt.tv_sec * 1000 * 1000) + uebi->last_attempt.tv_usec + uebi->throttle_level;
if (i_micros > micros) {
return;
}
}
if (now - emperor_throttle < 1) {
emperor_throttle_level = emperor_throttle_level * 2;
}
else {
if (emperor_throttle_level > uwsgi.emperor_throttle) {
emperor_throttle_level = emperor_throttle_level / 2;
}
if (emperor_throttle_level < uwsgi.emperor_throttle) {
emperor_throttle_level = uwsgi.emperor_throttle;
}
}
emperor_throttle = now;
#ifdef UWSGI_DEBUG
uwsgi_log("emperor throttle = %d\n", emperor_throttle_level);
#endif
usleep(emperor_throttle_level);
if (uwsgi.emperor_tyrant) {
if (uid == 0 || gid == 0) {
uwsgi_log("[emperor-tyrant] invalid permissions for vassal %s\n", name);
return;
}
}
while (c_ui->ui_next) {
c_ui = c_ui->ui_next;
}
n_ui = uwsgi_calloc(sizeof(struct uwsgi_instance));
if (config) {
n_ui->use_config = 1;
n_ui->config = config;
n_ui->config_len = config_size;
}
c_ui->ui_next = n_ui;
#ifdef UWSGI_DEBUG
uwsgi_log("c_ui->ui_next = %p\n", c_ui->ui_next);
#endif
n_ui->ui_prev = c_ui;
if (strchr(name, ':')) {
n_ui->zerg = 1;
uwsgi.emperor_broodlord_count++;
}
n_ui->scanner = ues;
memcpy(n_ui->name, name, strlen(name));
n_ui->born = born;
n_ui->uid = uid;
n_ui->gid = gid;
n_ui->last_mod = born;
// start without loyalty
n_ui->last_loyal = 0;
n_ui->loyal = 0;
n_ui->first_run = uwsgi_now();
n_ui->last_run = n_ui->first_run;
n_ui->on_demand_fd = -1;
if (socket_name) {
n_ui->socket_name = uwsgi_str(socket_name);
}
n_ui->pid = -1;
// ok here we check if we need to bind to the specified socket or continue with the activation
if (socket_name) {
char *tcp_port = strchr(socket_name, ':');
if (tcp_port) {
// disable deferred accept for this socket
int current_defer_accept = uwsgi.no_defer_accept;
uwsgi.no_defer_accept = 1;
n_ui->on_demand_fd = bind_to_tcp(socket_name, uwsgi.listen_queue, tcp_port);
uwsgi.no_defer_accept = current_defer_accept;
}
else {
n_ui->on_demand_fd = bind_to_unix(socket_name, uwsgi.listen_queue, uwsgi.chmod_socket, uwsgi.abstract_socket);
}
if (n_ui->on_demand_fd < 0) {
uwsgi_error("emperor_add()/bind()");
free(n_ui);
c_ui->ui_next = NULL;
return;
}
event_queue_add_fd_read(uwsgi.emperor_queue, n_ui->on_demand_fd);
uwsgi_log("[uwsgi-emperor] %s -> \"on demand\" instance detected, waiting for connections on socket \"%s\" ...\n", name, socket_name);
return;
}
if (uwsgi_emperor_vassal_start(n_ui)) {
// clear the vassal
free(n_ui);
c_ui->ui_next = NULL;
}
}
struct corerouter_session *corerouter_alloc_session(struct uwsgi_corerouter *ucr, struct uwsgi_gateway_socket *ugs, int new_connection, struct sockaddr *cr_addr, socklen_t cr_addr_len) {
struct corerouter_session *cs = uwsgi_calloc(ucr->session_size);
struct corerouter_peer *peer = uwsgi_calloc(sizeof(struct corerouter_peer));
// main_peer has only input buffer as output buffer is taken from backend peers
size_t bufsize = ucr->buffer_size;
if (!bufsize) bufsize = uwsgi.page_size;
peer->in = uwsgi_buffer_new(bufsize);
ucr->cr_table[new_connection] = peer;
cs->main_peer = peer;
peer->fd = new_connection;
peer->session = cs;
// map corerouter and socket
cs->corerouter = ucr;
cs->ugs = ugs;
// set initial timeout (could be overridden)
peer->current_timeout = ucr->socket_timeout;
ucr->active_sessions++;
// build the client address
memcpy(&cs->client_sockaddr, cr_addr, cr_addr_len);
switch(cr_addr->sa_family) {
case AF_INET:
if (inet_ntop(AF_INET, &cs->client_sockaddr.sa_in.sin_addr, cs->client_address, cr_addr_len) == NULL) {
uwsgi_error("corerouter_alloc_session/inet_ntop()");
memcpy(cs->client_address, "0.0.0.0", 7);
cs->client_port[0] = '0';
cs->client_port[1] = 0;
}
uwsgi_num2str2(cs->client_sockaddr.sa_in.sin_port, cs->client_port);
break;
#ifdef AF_INET6
case AF_INET6:
if (inet_ntop(AF_INET6, &cs->client_sockaddr.sa_in6.sin6_addr, cs->client_address, cr_addr_len) == NULL) {
uwsgi_error("corerouter_alloc_session/inet_ntop()");
memcpy(cs->client_address, "0.0.0.0", 7);
cs->client_port[0] = '0';
cs->client_port[1] = 0;
}
uwsgi_num2str2(cs->client_sockaddr.sa_in6.sin6_port, cs->client_port);
break;
#endif
default:
memcpy(cs->client_address, "0.0.0.0", 7);
cs->client_port[0] = '0';
cs->client_port[1] = 0;
break;
}
// here we prepare the real session and set the hooks
if (ucr->alloc_session(ucr, ugs, cs, cr_addr, cr_addr_len)) {
corerouter_close_session(ucr, cs);
cs = NULL;
}
else {
// truly set the timeout
peer->timeout = cr_add_timeout(ucr, ucr->cr_table[new_connection]);
}
return cs;
}
// this is the monitor for non-glob directories
void uwsgi_imperial_monitor_directory(struct uwsgi_emperor_scanner *ues) {
struct uwsgi_instance *ui_current;
struct dirent *de;
struct stat st;
if (chdir(ues->arg)) {
uwsgi_error("chdir()");
return;
}
DIR *dir = opendir(".");
while ((de = readdir(dir)) != NULL) {
if (!uwsgi_emperor_is_valid(de->d_name))
continue;
if (stat(de->d_name, &st))
continue;
if (!S_ISREG(st.st_mode))
continue;
ui_current = emperor_get(de->d_name);
uid_t t_uid = st.st_uid;
gid_t t_gid = st.st_gid;
if (uwsgi.emperor_tyrant && uwsgi.emperor_tyrant_nofollow) {
struct stat lst;
if (lstat(de->d_name, &lst)) {
uwsgi_error("[emperor-tyrant]/lstat()");
if (ui_current) {
uwsgi_log("!!! availability of file %s changed. stopping the instance... !!!\n", de->d_name);
emperor_stop(ui_current);
}
continue;
}
t_uid = lst.st_uid;
t_gid = lst.st_gid;
}
if (ui_current) {
// check if uid or gid are changed, in such case, stop the instance
if (uwsgi.emperor_tyrant) {
if (t_uid != ui_current->uid || t_gid != ui_current->gid) {
uwsgi_log("!!! permissions of file %s changed. stopping the instance... !!!\n", de->d_name);
emperor_stop(ui_current);
continue;
}
}
// check if mtime is changed and the uWSGI instance must be reloaded
if (st.st_mtime > ui_current->last_mod) {
emperor_respawn(ui_current, st.st_mtime);
}
}
else {
char *socket_name = emperor_check_on_demand_socket(de->d_name);
emperor_add(ues, de->d_name, st.st_mtime, NULL, 0, t_uid, t_gid, socket_name);
if (socket_name) free(socket_name);
}
}
closedir(dir);
// now check for removed instances
struct uwsgi_instance *c_ui = ui->ui_next;
while (c_ui) {
if (c_ui->scanner == ues) {
if (c_ui->zerg) {
char *colon = strrchr(c_ui->name, ':');
if (!colon) {
emperor_stop(c_ui);
}
else {
char *filename = uwsgi_calloc(0xff);
memcpy(filename, c_ui->name, colon - c_ui->name);
if (stat(filename, &st)) {
emperor_stop(c_ui);
}
free(filename);
}
}
else {
if (stat(c_ui->name, &st)) {
emperor_stop(c_ui);
}
}
}
c_ui = c_ui->ui_next;
}
}
/*
extremely complex function for reading resources (files, url...)
need a lot of refactoring...
*/
char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_table[]) {
int fd;
struct stat sb;
char *buffer = NULL;
char byte;
ssize_t len;
char *uri, *colon;
char *domain;
char *ip;
int body = 0;
char *magic_buf;
// stdin ?
if (!strcmp(url, "-")) {
buffer = uwsgi_read_fd(0, size, add_zero);
}
// fd ?
else if (!strncmp("fd://", url, 5)) {
fd = atoi(url + 5);
buffer = uwsgi_read_fd(fd, size, add_zero);
}
// exec ?
else if (!strncmp("exec://", url, 5)) {
int cpipe[2];
if (pipe(cpipe)) {
uwsgi_error("pipe()");
exit(1);
}
uwsgi_run_command(url + 7, NULL, cpipe[1]);
buffer = uwsgi_read_fd(cpipe[0], size, add_zero);
close(cpipe[0]);
close(cpipe[1]);
}
// http url ?
else if (!strncmp("http://", url, 7)) {
domain = url + 7;
uri = strchr(domain, '/');
if (!uri) {
uwsgi_log("invalid http url\n");
exit(1);
}
uri[0] = 0;
uwsgi_log("domain: %s\n", domain);
colon = uwsgi_get_last_char(domain, ':');
if (colon) {
colon[0] = 0;
}
ip = uwsgi_resolve_ip(domain);
if (!ip) {
uwsgi_log("unable to resolve address %s\n", domain);
exit(1);
}
if (colon) {
colon[0] = ':';
ip = uwsgi_concat2(ip, colon);
}
else {
ip = uwsgi_concat2(ip, ":80");
}
fd = uwsgi_connect(ip, 0, 0);
if (fd < 0) {
exit(1);
}
free(ip);
uri[0] = '/';
len = write(fd, "GET ", 4);
len = write(fd, uri, strlen(uri));
len = write(fd, " HTTP/1.0\r\n", 11);
len = write(fd, "Host: ", 6);
uri[0] = 0;
len = write(fd, domain, strlen(domain));
uri[0] = '/';
len = write(fd, "\r\nUser-Agent: uWSGI on ", 23);
len = write(fd, uwsgi.hostname, uwsgi.hostname_len);
len = write(fd, "\r\n\r\n", 4);
int http_status_code_ptr = 0;
while (read(fd, &byte, 1) == 1) {
if (byte == '\r' && body == 0) {
body = 1;
}
else if (byte == '\n' && body == 1) {
body = 2;
}
else if (byte == '\r' && body == 2) {
body = 3;
}
else if (byte == '\n' && body == 3) {
body = 4;
}
else if (body == 4) {
*size = *size + 1;
char *tmp = realloc(buffer, *size);
if (!tmp) {
uwsgi_error("uwsgi_open_and_read()/realloc()");
exit(1);
}
buffer = tmp;
buffer[*size - 1] = byte;
}
else {
body = 0;
http_status_code_ptr++;
if (http_status_code_ptr == 10) {
if (byte != '2') {
uwsgi_log("Not usable HTTP response: %cxx\n", byte);
if (uwsgi.has_emperor) {
exit(UWSGI_EXILE_CODE);
}
else {
exit(1);
}
}
}
}
}
close(fd);
if (add_zero) {
*size = *size + 1;
char *tmp = realloc(buffer, *size);
if (!tmp) {
uwsgi_error("uwsgi_open_and_read()/realloc()");
exit(1);
}
buffer = tmp;
buffer[*size - 1] = 0;
}
}
else if (!strncmp("emperor://", url, 10)) {
if (uwsgi.emperor_fd_config < 0) {
uwsgi_log("this is not a vassal instance\n");
exit(1);
}
ssize_t rlen;
*size = 0;
struct uwsgi_header uh;
size_t remains = 4;
char *ptr = (char *) &uh;
while(remains) {
int ret = uwsgi_waitfd(uwsgi.emperor_fd_config, 5);
if (ret <= 0) {
uwsgi_log("[uwsgi-vassal] error waiting for config header %s !!!\n", url);
exit(1);
}
rlen = read(uwsgi.emperor_fd_config, ptr, remains);
if (rlen <= 0) {
uwsgi_log("[uwsgi-vassal] error reading config header from !!!\n", url);
exit(1);
}
ptr+=rlen;
remains-=rlen;
}
remains = uh.pktsize;
if (!remains) {
uwsgi_log("[uwsgi-vassal] invalid config from %s\n", url);
exit(1);
}
buffer = uwsgi_calloc(remains + add_zero);
ptr = buffer;
while (remains) {
int ret = uwsgi_waitfd(uwsgi.emperor_fd_config, 5);
if (ret <= 0) {
uwsgi_log("[uwsgi-vassal] error waiting for config %s !!!\n", url);
exit(1);
}
rlen = read(uwsgi.emperor_fd_config, ptr, remains);
if (rlen <= 0) {
uwsgi_log("[uwsgi-vassal] error reading config from !!!\n", url);
exit(1);
}
ptr+=rlen;
remains-=rlen;
}
*size = uh.pktsize + add_zero;
}
#ifdef UWSGI_EMBED_CONFIG
else if (url[0] == 0) {
*size = &UWSGI_EMBED_CONFIG_END - &UWSGI_EMBED_CONFIG;
if (add_zero) {
*size += 1;
}
buffer = uwsgi_malloc(*size);
memset(buffer, 0, *size);
memcpy(buffer, &UWSGI_EMBED_CONFIG, &UWSGI_EMBED_CONFIG_END - &UWSGI_EMBED_CONFIG);
}
#endif
else if (!strncmp("data://", url, 7)) {
fd = open(uwsgi.binary_path, O_RDONLY);
if (fd < 0) {
uwsgi_error_open(uwsgi.binary_path);
exit(1);
}
int slot = atoi(url + 7);
if (slot < 0) {
uwsgi_log("invalid binary data slot requested\n");
exit(1);
}
uwsgi_log("requesting binary data slot %d\n", slot);
off_t fo = lseek(fd, 0, SEEK_END);
if (fo < 0) {
uwsgi_error("lseek()");
uwsgi_log("invalid binary data slot requested\n");
exit(1);
}
int i = 0;
uint64_t datasize = 0;
for (i = 0; i <= slot; i++) {
fo = lseek(fd, -9, SEEK_CUR);
if (fo < 0) {
uwsgi_error("lseek()");
uwsgi_log("invalid binary data slot requested\n");
exit(1);
}
ssize_t len = read(fd, &datasize, 8);
if (len != 8) {
uwsgi_error("read()");
uwsgi_log("invalid binary data slot requested\n");
exit(1);
}
if (datasize == 0) {
uwsgi_log("0 size binary data !!!\n");
exit(1);
}
fo = lseek(fd, -(datasize + 9), SEEK_CUR);
if (fo < 0) {
uwsgi_error("lseek()");
uwsgi_log("invalid binary data slot requested\n");
exit(1);
}
if (i == slot) {
*size = datasize;
if (add_zero) {
*size += 1;
}
buffer = uwsgi_malloc(*size);
memset(buffer, 0, *size);
len = read(fd, buffer, datasize);
if (len != (ssize_t) datasize) {
uwsgi_error("read()");
uwsgi_log("invalid binary data slot requested\n");
exit(1);
}
}
}
}
else if (!strncmp("sym://", url, 6)) {
char *symbol = uwsgi_concat3("_binary_", url + 6, "_start");
void *sym_start_ptr = dlsym(RTLD_DEFAULT, symbol);
if (!sym_start_ptr) {
uwsgi_log("unable to find symbol %s\n", symbol);
exit(1);
}
free(symbol);
symbol = uwsgi_concat3("_binary_", url + 6, "_end");
void *sym_end_ptr = dlsym(RTLD_DEFAULT, symbol);
if (!sym_end_ptr) {
uwsgi_log("unable to find symbol %s\n", symbol);
exit(1);
}
free(symbol);
*size = sym_end_ptr - sym_start_ptr;
if (add_zero) {
*size += 1;
}
buffer = uwsgi_malloc(*size);
memset(buffer, 0, *size);
memcpy(buffer, sym_start_ptr, sym_end_ptr - sym_start_ptr);
}
#ifdef UWSGI_ELF
else if (!strncmp("section://", url, 10)) {
size_t s_len = 0;
buffer = uwsgi_elf_section(uwsgi.binary_path, url + 10, &s_len);
if (!buffer) {
uwsgi_log("unable to find section %s in %s\n", url + 10, uwsgi.binary_path);
exit(1);
}
*size = s_len;
if (add_zero)
*size += 1;
}
#endif
// fallback to file
else {
fd = open(url, O_RDONLY);
if (fd < 0) {
uwsgi_error_open(url);
exit(1);
}
if (fstat(fd, &sb)) {
uwsgi_error("fstat()");
exit(1);
}
if (S_ISFIFO(sb.st_mode)) {
buffer = uwsgi_read_fd(fd, size, add_zero);
close(fd);
goto end;
}
buffer = uwsgi_malloc(sb.st_size + add_zero);
len = read(fd, buffer, sb.st_size);
if (len != sb.st_size) {
uwsgi_error("read()");
exit(1);
}
close(fd);
*size = sb.st_size + add_zero;
if (add_zero)
buffer[sb.st_size] = 0;
}
end:
if (magic_table) {
magic_buf = magic_sub(buffer, *size, size, magic_table);
free(buffer);
return magic_buf;
}
return buffer;
}
ssize_t uwsgi_redis_logger(struct uwsgi_logger *ul, char *message, size_t len) {
ssize_t ret,ret2;
struct uwsgi_redislog_state *uredislog = NULL;
if (!ul->configured) {
if (!ul->data) {
ul->data = uwsgi_calloc(sizeof(struct uwsgi_redislog_state));
uredislog = (struct uwsgi_redislog_state *) ul->data;
}
if (ul->arg != NULL) {
char *logarg = uwsgi_str(ul->arg);
char *comma1 = strchr(logarg, ',');
if (!comma1) {
uredislog->address = logarg;
goto done;
}
*comma1 = 0;
uredislog->address = logarg;
comma1++;
if (*comma1 == 0) goto done;
char *comma2 = strchr(comma1,',');
if (!comma2) {
uredislog->command = uwsgi_redis_logger_build_command(comma1);
goto done;
}
*comma2 = 0;
uredislog->command = uwsgi_redis_logger_build_command(comma1);
comma2++;
if (*comma2 == 0) goto done;
uredislog->prefix = comma2;
}
done:
if (!uredislog->address) uredislog->address = uwsgi_str("127.0.0.1:6379");
if (!uredislog->command) uredislog->command = "*3\r\n$7\r\npublish\r\n$5\r\nuwsgi\r\n";
if (!uredislog->prefix) uredislog->prefix = "";
uredislog->fd = -1;
uredislog->iovec[0].iov_base = uredislog->command;
uredislog->iovec[0].iov_len = strlen(uredislog->command);
uredislog->iovec[1].iov_base = "$";
uredislog->iovec[1].iov_len = 1;
uredislog->iovec[2].iov_base = uredislog->msgsize;
uredislog->iovec[3].iov_base = "\r\n";
uredislog->iovec[3].iov_len = 2;
uredislog->iovec[4].iov_base = uredislog->prefix;
uredislog->iovec[4].iov_len = strlen(uredislog->prefix);
uredislog->iovec[6].iov_base = "\r\n";
uredislog->iovec[6].iov_len = 2;
ul->configured = 1;
}
uredislog = (struct uwsgi_redislog_state *) ul->data;
if (uredislog->fd == -1) {
uredislog->fd = uwsgi_connect(uredislog->address, uwsgi.socket_timeout, 0);
}
if (uredislog->fd == -1) return -1;
// drop newline
if (message[len-1] == '\n') len--;
uwsgi_num2str2(len + uredislog->iovec[4].iov_len, uredislog->msgsize);
uredislog->iovec[2].iov_len = strlen(uredislog->msgsize);
uredislog->iovec[5].iov_base = message;
uredislog->iovec[5].iov_len = len;
ret = writev(uredislog->fd, uredislog->iovec, 7);
if (ret <= 0) {
close(uredislog->fd);
uredislog->fd = -1;
return -1;
}
again:
// read til a \n is found (ugly but fast)
ret2 = read(uredislog->fd, uredislog->response, 8);
if (ret2 <= 0) {
close(uredislog->fd);
uredislog->fd = -1;
return -1;
}
if (!memchr(uredislog->response, '\n', ret2)) {
goto again;
}
return ret;
}
static void asyncio_loop() {
if (!uwsgi.has_threads && uwsgi.mywid == 1) {
uwsgi_log("!!! Running asyncio without threads IS NOT recommended, enable them with --enable-threads !!!\n");
}
if (uwsgi.socket_timeout < 30) {
uwsgi_log("!!! Running asyncio with a socket-timeout lower than 30 seconds is not recommended, tune it with --socket-timeout !!!\n");
}
if (!uwsgi.async_waiting_fd_table)
uwsgi.async_waiting_fd_table = uwsgi_calloc(sizeof(struct wsgi_request *) * uwsgi.max_fd);
if (!uwsgi.async_proto_fd_table)
uwsgi.async_proto_fd_table = uwsgi_calloc(sizeof(struct wsgi_request *) * uwsgi.max_fd);
// get the GIL
UWSGI_GET_GIL
up.gil_get = gil_asyncio_get;
up.gil_release = gil_asyncio_release;
uwsgi.wait_write_hook = uwsgi_asyncio_wait_write_hook;
uwsgi.wait_read_hook = uwsgi_asyncio_wait_read_hook;
if (uwsgi.async < 1) {
uwsgi_log("the asyncio loop engine requires async mode (--async <n>)\n");
exit(1);
}
if (!uwsgi.schedule_to_main) {
uwsgi_log("*** DANGER *** asyncio mode without coroutine/greenthread engine loaded !!!\n");
}
if (!uwsgi.schedule_to_req) {
uwsgi.schedule_to_req = async_schedule_to_req_green;
}
else {
uwsgi.schedule_fix = uwsgi_asyncio_schedule_fix;
}
#ifndef PYTHREE
PyObject *asyncio = PyImport_ImportModule("trollius");
#else
PyObject *asyncio = PyImport_ImportModule("asyncio");
#endif
if (!asyncio) uwsgi_pyexit;
uasyncio.mod = asyncio;
uasyncio.loop = PyObject_CallMethod(asyncio, "get_event_loop", NULL);
if (!uasyncio.loop) uwsgi_pyexit;
// main greenlet waiting for connection (one greenlet per-socket)
PyObject *asyncio_accept = PyCFunction_New(uwsgi_asyncio_accept_def, NULL);
Py_INCREF(asyncio_accept);
uasyncio.request = PyCFunction_New(uwsgi_asyncio_request_def, NULL);
if (!uasyncio.request) uwsgi_pyexit;
uasyncio.hook_fd = PyCFunction_New(uwsgi_asyncio_hook_fd_def, NULL);
if (!uasyncio.hook_fd) uwsgi_pyexit;
uasyncio.hook_timeout = PyCFunction_New(uwsgi_asyncio_hook_timeout_def, NULL);
if (!uasyncio.hook_timeout) uwsgi_pyexit;
uasyncio.hook_fix = PyCFunction_New(uwsgi_asyncio_hook_fix_def, NULL);
if (!uasyncio.hook_fix) uwsgi_pyexit;
Py_INCREF(uasyncio.request);
Py_INCREF(uasyncio.hook_fd);
Py_INCREF(uasyncio.hook_timeout);
Py_INCREF(uasyncio.hook_fix);
// call add_handler on each socket
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while(uwsgi_sock) {
if (PyObject_CallMethod(uasyncio.loop, "add_reader", "iOl", uwsgi_sock->fd, asyncio_accept, (long) uwsgi_sock) == NULL) {
uwsgi_pyexit;
}
uwsgi_sock = uwsgi_sock->next;
}
if (PyObject_CallMethod(uasyncio.loop, "run_forever", NULL) == NULL) {
uwsgi_pyexit;
}
// never here ?
}
int uwsgi_python_init() {
#ifndef UWSGI_PYPY
char *pyversion = strchr(Py_GetVersion(), '\n');
if (!pyversion) {
uwsgi_log_initial("Python version: %s\n", Py_GetVersion());
}
else {
uwsgi_log_initial("Python version: %.*s %s\n", pyversion-Py_GetVersion(), Py_GetVersion(), Py_GetCompiler()+1);
}
#else
uwsgi_log_initial("PyPy version: %s\n", PYPY_VERSION);
#endif
if (up.home != NULL) {
#ifdef PYTHREE
wchar_t *wpyhome;
size_t len = strlen(up.home) + 1;
wpyhome = uwsgi_calloc(sizeof(wchar_t) * len );
if (!wpyhome) {
uwsgi_error("malloc()");
exit(1);
}
mbstowcs(wpyhome, up.home, len);
Py_SetPythonHome(wpyhome);
// do not free this memory !!!
//free(wpyhome);
#else
Py_SetPythonHome(up.home);
#endif
uwsgi_log("Set PythonHome to %s\n", up.home);
}
#ifdef PYTHREE
wchar_t pname[6];
mbstowcs(pname, "uWSGI", 6);
Py_SetProgramName(pname);
#else
Py_SetProgramName("uWSGI");
#endif
#ifndef UWSGI_PYPY
Py_OptimizeFlag = up.optimize;
#endif
Py_Initialize();
if (!uwsgi.has_threads) {
uwsgi_log("*** Python threads support is disabled. You can enable it with --enable-threads ***\n");
}
up.wsgi_spitout = PyCFunction_New(uwsgi_spit_method, NULL);
up.wsgi_writeout = PyCFunction_New(uwsgi_write_method, NULL);
up.main_thread = PyThreadState_Get();
// by default set a fake GIL (little impact on performance)
up.gil_get = gil_fake_get;
up.gil_release = gil_fake_release;
up.swap_ts = simple_swap_ts;
up.reset_ts = simple_reset_ts;
uwsgi_log_initial("Python main interpreter initialized at %p\n", up.main_thread);
return 1;
}
static char *uwsgi_xslt_apply(char *xmlfile, char *xsltfile, char *params, int *rlen) {
char **vparams = NULL;
char *tmp_params = NULL;
uint16_t count = 0;
if (params) {
// first count the number of items
size_t i;
size_t params_len = strlen(params);
for(i=0;i<params_len;i++) {
if (params[i] == '=') {
count++;
}
}
vparams = uwsgi_calloc( sizeof(char *) * ((count * 2) + 1));
tmp_params = uwsgi_str(params);
char *p = strtok(tmp_params, "&");
int pos = 0;
while(p) {
char *equal = strchr(p, '=');
if (equal) {
*equal = 0;
vparams[pos] = p; pos++;
vparams[pos] = uwsgi_concat3("\"", equal+1, "\""); pos++;
}
p = strtok(NULL, "&");
}
}
// we reset them every time to avoid collision with other xml engines
xmlSubstituteEntitiesDefault(1);
xmlLoadExtDtdDefaultValue = 1;
xmlDocPtr doc = xmlParseFile(xmlfile);
if (!doc) {
if (vparams) {
int i; for(i=1;i<(count*2);i+=2) free(vparams[i]);
free(tmp_params);
free(vparams);
}
return NULL;
}
xsltStylesheetPtr ss = xsltParseStylesheetFile((const xmlChar *) xsltfile);
if (!ss) {
xmlFreeDoc(doc);
if (vparams) {
int i; for(i=1;i<(count*2);i+=2) free(vparams[i]);
free(tmp_params);
free(vparams);
}
return NULL;
}
xmlDocPtr res = xsltApplyStylesheet(ss, doc, (const char **) vparams);
if (!res) {
xsltFreeStylesheet(ss);
xmlFreeDoc(doc);
if (vparams) {
int i; for(i=1;i<(count*2);i+=2) free(vparams[i]);
free(tmp_params);
free(vparams);
}
return NULL;
}
xmlChar *output;
int ret = xsltSaveResultToString(&output, rlen, res, ss);
xsltFreeStylesheet(ss);
xmlFreeDoc(res);
xmlFreeDoc(doc);
if (vparams) {
int i; for(i=1;i<(count*2);i+=2) free(vparams[i]);
free(tmp_params);
free(vparams);
}
if (ret < 0) return NULL;
return (char *) output;
}
void uwsgi_fork_server(char *socket) {
// map fd 0 to /dev/null to avoid mess
uwsgi_remap_fd(0, "/dev/null");
int fd = bind_to_unix(socket, uwsgi.listen_queue, uwsgi.chmod_socket, uwsgi.abstract_socket);
if (fd < 0) exit(1);
// automatically receive credentials (TODO make something useful with them, like checking the pid is from the Emperor)
if (uwsgi_socket_passcred(fd)) exit(1);
// initialize the event queue
int eq = event_queue_init();
if (uwsgi.has_emperor) {
event_queue_add_fd_read(eq, uwsgi.emperor_fd);
}
event_queue_add_fd_read(eq, fd);
// now start waiting for connections
for(;;) {
int interesting_fd = -1;
int rlen = event_queue_wait(eq, -1, &interesting_fd);
if (rlen <= 0) continue;
if (uwsgi.has_emperor && interesting_fd == uwsgi.emperor_fd) {
char byte;
ssize_t rlen = read(uwsgi.emperor_fd, &byte, 1);
if (rlen > 0) {
uwsgi_log_verbose("received message %d from emperor\n", byte);
}
exit(0);
}
if (interesting_fd != fd) continue;
struct sockaddr_un client_src;
socklen_t client_src_len = 0;
int client_fd = accept(fd, (struct sockaddr *) &client_src, &client_src_len);
if (client_fd < 0) {
uwsgi_error("uwsgi_fork_server()/accept()");
continue;
}
char hbuf[4];
pid_t ppid = -1;
uid_t uid = -1;
gid_t gid = -1;
int fds_count = 8;
size_t remains = 4;
// we can receive up to 8 fds (generally from 1 to 3)
int fds[8];
// we only read 4 bytes header
ssize_t len = uwsgi_recv_cred_and_fds(client_fd, hbuf, remains, &ppid, &uid, &gid, fds, &fds_count);
uwsgi_log_verbose("[uwsgi-fork-server] connection from pid: %d uid: %d gid:%d fds:%d\n", ppid, uid, gid, fds_count);
if (len <= 0 || fds_count < 1) {
uwsgi_error("uwsgi_fork_server()/recvmsg()");
goto end;
}
remains -= len;
if (uwsgi_read_nb(client_fd, hbuf + (4-remains), remains, uwsgi.socket_timeout)) {
uwsgi_error("uwsgi_fork_server()/uwsgi_read_nb()");
goto end;
}
struct uwsgi_header *uh = (struct uwsgi_header *) hbuf;
// this memory area must be freed in the right place !!!
char *body_argv = uwsgi_malloc(uh->_pktsize);
if (uwsgi_read_nb(client_fd, body_argv, uh->_pktsize, uwsgi.socket_timeout)) {
free(body_argv);
uwsgi_error("uwsgi_fork_server()/uwsgi_read_nb()");
goto end;
}
pid_t pid = fork();
if (pid < 0) {
free(body_argv);
int i;
for(i=0;i<fds_count;i++) close(fds[i]);
// error on fork()
uwsgi_error("uwsgi_fork_server()/fork()");
goto end;
}
else if (pid > 0) {
free(body_argv);
// close inherited decriptors
int i;
for(i=0;i<fds_count;i++) close(fds[i]);
// wait for child death...
waitpid(pid, NULL, 0);
goto end;
}
else {
// close Emperor channels
// we do not close others file desctiptor as lot
// of funny tricks could be accomplished with them
if (uwsgi.has_emperor) {
close(uwsgi.emperor_fd);
if (uwsgi.emperor_fd_config > -1) close(uwsgi.emperor_fd_config);
}
// set EMPEROR_FD and FD_CONFIG env vars
char *uef = uwsgi_num2str(fds[0]);
if (setenv("UWSGI_EMPEROR_FD", uef, 1)) {
uwsgi_error("uwsgi_fork_server()/setenv()");
exit(1);
}
free(uef);
int pipe_config = -1;
int on_demand = -1;
if (uh->modifier2 & VASSAL_HAS_CONFIG && fds_count > 1) {
pipe_config = fds[1];
char *uef = uwsgi_num2str(pipe_config);
if (setenv("UWSGI_EMPEROR_FD_CONFIG", uef, 1)) {
uwsgi_error("uwsgi_fork_server()/setenv()");
exit(1);
}
free(uef);
}
if (uh->modifier2 & VASSAL_HAS_ON_DEMAND && fds_count > 1) {
if (pipe_config > -1) {
if (fds_count > 2) {
on_demand = fds[2];
}
}
else {
on_demand = fds[1];
}
}
// dup the on_demand socket to 0 and close it
if (on_demand > -1) {
if (dup2(on_demand, 0) < 0) {
uwsgi_error("uwsgi_fork_server()/dup2()");
exit(1);
}
close(on_demand);
}
// now fork again and die
pid_t new_pid = fork();
if (new_pid < 0) {
uwsgi_error("uwsgi_fork_server()/fork()");
exit(1);
}
else if (new_pid > 0) {
exit(0);
}
else {
// send the pid to the client_fd and close it
struct uwsgi_buffer *ub = uwsgi_buffer_new(uwsgi.page_size);
// leave space for header
ub->pos = 4;
if (uwsgi_buffer_append_keynum(ub, "pid", 3, getpid())) exit(1);
// fix uwsgi header
if (uwsgi_buffer_set_uh(ub, 35, 0)) goto end;
// send_pid()
if (uwsgi_write_nb(client_fd, ub->buf, ub->pos, uwsgi.socket_timeout)) exit(1);
close(client_fd);
uwsgi_log("double fork() and reparenting successful (new pid: %d)\n", getpid());
uwsgi_buffer_destroy(ub);
// now parse the uwsgi packet array and build the argv
struct uwsgi_string_list *usl = NULL, *usl_argv = NULL;
uwsgi_hooked_parse_array(body_argv, uh->_pktsize, parse_argv_hook, &usl_argv);
free(body_argv);
// build new argc/argv
uwsgi.new_argc = 0;
size_t procname_len = 1;
uwsgi_foreach(usl, usl_argv) {
uwsgi.new_argc++;
procname_len += usl->len + 1;
}
char *new_procname = uwsgi_calloc(procname_len);
uwsgi.new_argv = uwsgi_calloc(sizeof(char *) * (uwsgi.new_argc + 1));
int counter = 0;
uwsgi_foreach(usl, usl_argv) {
uwsgi.new_argv[counter] = usl->value;
strcat(new_procname, usl->value);
strcat(new_procname, " ");
counter++;
}
// fix process name
uwsgi_set_processname(new_procname);
free(new_procname);
// this is the only step required to have a consistent environment
uwsgi.fork_socket = NULL;
// this avoids the process to re-exec itself
uwsgi.exit_on_reload = 1;
// fixup the Emperor communication
uwsgi_check_emperor();
// continue with uWSGI startup
return;
}
}
static void tornado_loop() {
if (!uwsgi.has_threads && uwsgi.mywid == 1) {
uwsgi_log("!!! Running tornado without threads IS NOT recommended, enable them with --enable-threads !!!\n");
}
if (uwsgi.socket_timeout < 30) {
uwsgi_log("!!! Running tornado with a socket-timeout lower than 30 seconds is not recommended, tune it with --socket-timeout !!!\n");
}
if (!uwsgi.async_waiting_fd_table)
uwsgi.async_waiting_fd_table = uwsgi_calloc(sizeof(struct wsgi_request *) * uwsgi.max_fd);
if (!uwsgi.async_proto_fd_table)
uwsgi.async_proto_fd_table = uwsgi_calloc(sizeof(struct wsgi_request *) * uwsgi.max_fd);
// get the GIL
UWSGI_GET_GIL
up.gil_get = gil_tornado_get;
up.gil_release = gil_tornado_release;
uwsgi.wait_write_hook = uwsgi_tornado_wait_write_hook;
uwsgi.wait_read_hook = uwsgi_tornado_wait_read_hook;
uwsgi.schedule_fix = uwsgi_tornado_schedule_fix;
if (uwsgi.async < 2) {
uwsgi_log("the tornado loop engine requires async mode (--async <n>)\n");
exit(1);
}
if (!uwsgi.schedule_to_main) {
uwsgi_log("*** DANGER *** tornado mode without coroutine/greenthread engine loaded !!!\n");
}
PyObject *tornado_dict = get_uwsgi_pydict("tornado.ioloop");
if (!tornado_dict) uwsgi_pyexit;
PyObject *tornado_IOLoop = PyDict_GetItemString(tornado_dict, "IOLoop");
if (!tornado_IOLoop) uwsgi_pyexit;
utornado.ioloop = PyObject_CallMethod(tornado_IOLoop, "instance", NULL);
if (!utornado.ioloop) uwsgi_pyexit;
// main greenlet waiting for connection (one greenlet per-socket)
PyObject *uwsgi_tornado_accept = PyCFunction_New(uwsgi_tornado_accept_def, NULL);
Py_INCREF(uwsgi_tornado_accept);
utornado.request = PyCFunction_New(uwsgi_tornado_request_def, NULL);
if (!utornado.request) uwsgi_pyexit;
utornado.hook_fd = PyCFunction_New(uwsgi_tornado_hook_fd_def, NULL);
if (!utornado.hook_fd) uwsgi_pyexit;
utornado.hook_timeout = PyCFunction_New(uwsgi_tornado_hook_timeout_def, NULL);
if (!utornado.hook_timeout) uwsgi_pyexit;
utornado.hook_fix = PyCFunction_New(uwsgi_tornado_hook_fix_def, NULL);
if (!utornado.hook_fix) uwsgi_pyexit;
utornado.read = PyObject_GetAttrString(utornado.ioloop, "READ");
if (!utornado.read) uwsgi_pyexit;
utornado.write = PyObject_GetAttrString(utornado.ioloop, "WRITE");
if (!utornado.write) uwsgi_pyexit;
utornado.functools = PyImport_ImportModule("functools");
if (!utornado.functools) uwsgi_pyexit;
Py_INCREF(utornado.request);
Py_INCREF(utornado.hook_fd);
Py_INCREF(utornado.hook_timeout);
Py_INCREF(utornado.hook_fix);
Py_INCREF(utornado.read);
Py_INCREF(utornado.write);
// call add_handler on each socket
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while(uwsgi_sock) {
if (PyObject_CallMethod(utornado.ioloop, "add_handler", "iOO", uwsgi_sock->fd, uwsgi_tornado_accept, utornado.read) == NULL) {
uwsgi_pyexit;
}
uwsgi_sock = uwsgi_sock->next;
}
if (PyObject_CallMethod(utornado.ioloop, "start", NULL) == NULL) {
uwsgi_pyexit;
}
// never here ?
}
static void stats_pusher_statsd(struct uwsgi_stats_pusher_instance *uspi, time_t now, char *json, size_t json_len) {
if (!uspi->configured) {
struct statsd_node *sn = uwsgi_calloc(sizeof(struct statsd_node));
char *comma = strchr(uspi->arg, ',');
if (comma) {
sn->prefix = comma+1;
sn->prefix_len = strlen(sn->prefix);
*comma = 0;
}
else {
sn->prefix = "uwsgi";
sn->prefix_len = 5;
}
char *colon = strchr(uspi->arg, ':');
if (!colon) {
uwsgi_log("invalid statsd address %s\n", uspi->arg);
if (comma) *comma = ',';
free(sn);
return;
}
sn->addr_len = socket_to_in_addr(uspi->arg, colon, 0, &sn->addr.sa_in);
sn->fd = socket(AF_INET, SOCK_DGRAM, 0);
if (sn->fd < 0) {
uwsgi_error("stats_pusher_statsd()/socket()");
if (comma) *comma = ',';
free(sn);
return;
}
uwsgi_socket_nb(sn->fd);
if (comma) *comma = ',';
uspi->data = sn;
uspi->configured = 1;
}
// we use the same buffer for all of the packets
struct uwsgi_buffer *ub = uwsgi_buffer_new(uwsgi.page_size);
struct uwsgi_metric *um = uwsgi.metrics;
while(um) {
if (u_stats_pusher_statsd.no_workers && !uwsgi_starts_with(um->name, um->name_len, "worker.", 7)) {
goto next;
}
uwsgi_rlock(uwsgi.metrics_lock);
// ignore return value
if (um->type == UWSGI_METRIC_GAUGE) {
statsd_send_metric(ub, uspi, um->name, um->name_len, *um->value, "|g");
}
else {
statsd_send_metric(ub, uspi, um->name, um->name_len, *um->value, "|c");
}
uwsgi_rwunlock(uwsgi.metrics_lock);
if (um->reset_after_push){
uwsgi_wlock(uwsgi.metrics_lock);
*um->value = um->initial_value;
uwsgi_rwunlock(uwsgi.metrics_lock);
}
next:
um = um->next;
}
uwsgi_buffer_destroy(ub);
}
int init_psgi_app(struct wsgi_request *wsgi_req, char *app, uint16_t app_len, PerlInterpreter **interpreters) {
struct stat st;
int i;
SV **callables;
time_t now = uwsgi_now();
char *app_name = uwsgi_concat2n(app, app_len, "", 0);
// prepare for $0
uperl.embedding[1] = app_name;
int fd = open(app_name, O_RDONLY);
if (fd < 0) {
uwsgi_error_open(app_name);
goto clear2;
}
if (fstat(fd, &st)) {
uwsgi_error("fstat()");
close(fd);
goto clear2;
}
char *buf = uwsgi_calloc(st.st_size+1);
if (read(fd, buf, st.st_size) != st.st_size) {
uwsgi_error("read()");
close(fd);
free(buf);
goto clear2;
}
close(fd);
// the first (default) app, should always be loaded in the main interpreter
if (interpreters == NULL) {
if (uwsgi_apps_cnt) {
interpreters = uwsgi_calloc(sizeof(PerlInterpreter *) * uwsgi.threads);
interpreters[0] = uwsgi_perl_new_interpreter();
if (!interpreters[0]) {
uwsgi_log("unable to create new perl interpreter\n");
free(interpreters);
goto clear2;
}
}
else {
interpreters = uperl.main;
}
}
if (!interpreters) {
goto clear2;
}
callables = uwsgi_calloc(sizeof(SV *) * uwsgi.threads);
uperl.tmp_streaming_stash = uwsgi_calloc(sizeof(HV *) * uwsgi.threads);
uperl.tmp_input_stash = uwsgi_calloc(sizeof(HV *) * uwsgi.threads);
uperl.tmp_error_stash = uwsgi_calloc(sizeof(HV *) * uwsgi.threads);
uperl.tmp_stream_responder = uwsgi_calloc(sizeof(CV *) * uwsgi.threads);
uperl.tmp_psgix_logger = uwsgi_calloc(sizeof(CV *) * uwsgi.threads);
for(i=0;i<uwsgi.threads;i++) {
if (i > 0 && interpreters != uperl.main) {
interpreters[i] = uwsgi_perl_new_interpreter();
if (!interpreters[i]) {
uwsgi_log("unable to create new perl interpreter\n");
// what to do here ? i hope no-one will use threads with dynamic apps...but clear the whole stuff...
free(callables);
uwsgi_perl_free_stashes();
while(i>=0) {
perl_destruct(interpreters[i]);
perl_free(interpreters[i]);
goto clear2;
}
}
}
PERL_SET_CONTEXT(interpreters[i]);
uperl.tmp_current_i = i;
if (uperl.locallib) {
uwsgi_log("using %s as local::lib directory\n", uperl.locallib);
uperl.embedding[1] = uwsgi_concat2("-Mlocal::lib=", uperl.locallib);
uperl.embedding[2] = app_name;
if (perl_parse(interpreters[i], xs_init, 3, uperl.embedding, NULL)) {
// what to do here ? i hope no-one will use threads with dynamic apps... but clear the whole stuff...
free(uperl.embedding[1]);
uperl.embedding[1] = app_name;
free(callables);
uwsgi_perl_free_stashes();
goto clear;
}
free(uperl.embedding[1]);
uperl.embedding[1] = app_name;
}
else {
if (perl_parse(interpreters[i], xs_init, 2, uperl.embedding, NULL)) {
// what to do here ? i hope no-one will use threads with dynamic apps... but clear the whole stuff...
free(callables);
uwsgi_perl_free_stashes();
goto clear;
}
}
perl_eval_pv("use IO::Handle;", 0);
perl_eval_pv("use IO::File;", 0);
perl_eval_pv("use Scalar::Util;", 0);
if (!uperl.no_die_catch) {
perl_eval_pv("use Devel::StackTrace;", 0);
if (!SvTRUE(ERRSV)) {
uperl.stacktrace_available = 1;
perl_eval_pv("$SIG{__DIE__} = \\&uwsgi::stacktrace;", 0);
}
}
if (uperl.argv_items || uperl.argv_item) {
AV *uperl_argv = GvAV(PL_argvgv);
if (uperl.argv_items) {
char *argv_list = uwsgi_str(uperl.argv_items);
char *p = strtok(argv_list, " ");
while(p) {
av_push(uperl_argv, newSVpv(p, 0));
p = strtok(NULL, " ");
}
}
struct uwsgi_string_list *usl = uperl.argv_item;
while(usl) {
av_push(uperl_argv, newSVpv(usl->value, usl->len));
usl = usl->next;
}
}
SV *dollar_zero = get_sv("0", GV_ADD);
sv_setsv(dollar_zero, newSVpv(app, app_len));
callables[i] = perl_eval_pv(uwsgi_concat4("#line 1 ", app_name, "\n", buf), 0);
if (!callables[i]) {
uwsgi_log("unable to find PSGI function entry point.\n");
// what to do here ? i hope no-one will use threads with dynamic apps...
free(callables);
uwsgi_perl_free_stashes();
goto clear;
}
PERL_SET_CONTEXT(interpreters[0]);
}
free(buf);
if(SvTRUE(ERRSV)) {
uwsgi_log("%s\n", SvPV_nolen(ERRSV));
free(callables);
uwsgi_perl_free_stashes();
goto clear;
}
if (uwsgi_apps_cnt >= uwsgi.max_apps) {
uwsgi_log("ERROR: you cannot load more than %d apps in a worker\n", uwsgi.max_apps);
goto clear;
}
int id = uwsgi_apps_cnt;
struct uwsgi_app *wi = NULL;
if (wsgi_req) {
// we need a copy of app_id
wi = uwsgi_add_app(id, psgi_plugin.modifier1, uwsgi_concat2n(wsgi_req->appid, wsgi_req->appid_len, "", 0), wsgi_req->appid_len, interpreters, callables);
}
else {
wi = uwsgi_add_app(id, psgi_plugin.modifier1, "", 0, interpreters, callables);
}
wi->started_at = now;
wi->startup_time = uwsgi_now() - now;
uwsgi_log("PSGI app %d (%s) loaded in %d seconds at %p (interpreter %p)\n", id, app_name, (int) wi->startup_time, callables[0], interpreters[0]);
free(app_name);
// copy global data to app-specific areas
wi->stream = uperl.tmp_streaming_stash;
wi->input = uperl.tmp_input_stash;
wi->error = uperl.tmp_error_stash;
wi->responder0 = uperl.tmp_stream_responder;
wi->responder1 = uperl.tmp_psgix_logger;
uwsgi_emulate_cow_for_apps(id);
// restore context if required
if (interpreters != uperl.main) {
PERL_SET_CONTEXT(uperl.main[0]);
}
uperl.loaded = 1;
return id;
clear:
if (interpreters != uperl.main) {
for(i=0;i<uwsgi.threads;i++) {
perl_destruct(interpreters[i]);
perl_free(interpreters[i]);
}
free(interpreters);
}
PERL_SET_CONTEXT(uperl.main[0]);
clear2:
free(app_name);
return -1;
}
void uwsgi_detach_daemons() {
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
#ifdef UWSGI_SSL
// stop any legion daemon, doesn't matter if dumb or smart
if (ud->pid > 0 && (ud->legion || !ud->pidfile)) {
#else
// stop only dumb daemons
if (ud->pid > 0 && !ud->pidfile) {
#endif
uwsgi_log("[uwsgi-daemons] stopping daemon (pid: %d): %s\n", (int) ud->pid, ud->command);
// try to stop daemon gracefully, kill it if it won't die
// if mercy is not set then wait up to 3 seconds
time_t timeout = uwsgi_now() + (uwsgi.reload_mercy ? uwsgi.reload_mercy : 3);
int waitpid_status;
while (!kill(ud->pid, 0)) {
kill(-ud->pid, ud->stop_signal);
sleep(1);
waitpid(-ud->pid, &waitpid_status, WNOHANG);
if (uwsgi_now() >= timeout) {
uwsgi_log("[uwsgi-daemons] daemon did not die in time, killing (pid: %d): %s\n", (int) ud->pid, ud->command);
kill(-ud->pid, SIGKILL);
break;
}
}
// unregister daemon to prevent it from being respawned
ud->registered = 0;
}
ud = ud->next;
}
}
void uwsgi_spawn_daemon(struct uwsgi_daemon *ud) {
// skip unregistered daemons
if (!ud->registered) return;
int throttle = 0;
if (uwsgi.current_time - ud->last_spawn <= 3) {
throttle = ud->respawns - (uwsgi.current_time - ud->last_spawn);
// if ud->respawns == 0 then we can end up with throttle < 0
if (throttle <= 0) throttle = 1;
}
pid_t pid = uwsgi_fork("uWSGI external daemon");
if (pid < 0) {
uwsgi_error("fork()");
return;
}
if (pid > 0) {
ud->has_daemonized = 0;
ud->pid = pid;
ud->status = 1;
ud->pidfile_checks = 0;
if (ud->respawns == 0) {
ud->born = uwsgi_now();
}
ud->respawns++;
ud->last_spawn = uwsgi_now();
}
else {
// close uwsgi sockets
uwsgi_close_all_sockets();
uwsgi_close_all_fds();
if (ud->gid) {
if (setgid(ud->gid)) {
uwsgi_error("uwsgi_spawn_daemon()/setgid()");
exit(1);
}
}
if (ud->uid) {
if (setuid(ud->uid)) {
uwsgi_error("uwsgi_spawn_daemon()/setuid()");
exit(1);
}
}
if (ud->daemonize) {
/* refork... */
pid = fork();
if (pid < 0) {
uwsgi_error("fork()");
exit(1);
}
if (pid != 0) {
_exit(0);
}
uwsgi_write_pidfile(ud->pidfile);
}
if (!uwsgi.daemons_honour_stdin && !ud->honour_stdin) {
// /dev/null will became stdin
uwsgi_remap_fd(0, "/dev/null");
}
if (setsid() < 0) {
uwsgi_error("setsid()");
exit(1);
}
if (!ud->pidfile) {
#ifdef __linux__
if (prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0)) {
uwsgi_error("prctl()");
}
#endif
}
if (throttle) {
uwsgi_log("[uwsgi-daemons] throttling \"%s\" for %d seconds\n", ud->command, throttle);
sleep((unsigned int) throttle);
}
uwsgi_log("[uwsgi-daemons] %sspawning \"%s\" (uid: %d gid: %d)\n", ud->respawns > 0 ? "re" : "", ud->command, (int) getuid(), (int) getgid());
uwsgi_exec_command_with_args(ud->command);
uwsgi_log("[uwsgi-daemons] unable to spawn \"%s\"\n", ud->command);
// never here;
exit(1);
}
return;
}
void uwsgi_opt_add_daemon(char *opt, char *value, void *none) {
struct uwsgi_daemon *uwsgi_ud = uwsgi.daemons, *old_ud;
char *pidfile = NULL;
int daemonize = 0;
int freq = 10;
char *space = NULL;
int stop_signal = SIGTERM;
int reload_signal = 0;
char *command = uwsgi_str(value);
#ifdef UWSGI_SSL
char *legion = NULL;
if (!uwsgi_starts_with(opt, strlen(command), "legion-", 7)) {
space = strchr(command, ' ');
if (!space) {
uwsgi_log("invalid legion daemon syntax: %s\n", command);
exit(1);
}
*space = 0;
legion = command;
command = space+1;
}
#endif
if (!strcmp(opt, "smart-attach-daemon") || !strcmp(opt, "smart-attach-daemon2") || !strcmp(opt, "legion-smart-attach-daemon") || !strcmp(opt, "legion-smart-attach-daemon2")) {
space = strchr(command, ' ');
if (!space) {
uwsgi_log("invalid smart-attach-daemon syntax: %s\n", command);
exit(1);
}
*space = 0;
pidfile = command;
// check for freq
char *comma = strchr(pidfile, ',');
if (comma) {
*comma = 0;
freq = atoi(comma + 1);
}
command = space + 1;
if (!strcmp(opt, "smart-attach-daemon2") || !strcmp(opt, "legion-smart-attach-daemon2")) {
daemonize = 1;
}
}
if (!uwsgi_ud) {
uwsgi.daemons = uwsgi_calloc(sizeof(struct uwsgi_daemon));
uwsgi_ud = uwsgi.daemons;
}
else {
while (uwsgi_ud) {
old_ud = uwsgi_ud;
uwsgi_ud = uwsgi_ud->next;
}
uwsgi_ud = uwsgi_calloc(sizeof(struct uwsgi_daemon));
old_ud->next = uwsgi_ud;
}
uwsgi_ud->command = command;
uwsgi_ud->pid = 0;
uwsgi_ud->status = 0;
uwsgi_ud->freq = freq;
uwsgi_ud->registered = 0;
uwsgi_ud->next = NULL;
uwsgi_ud->respawns = 0;
uwsgi_ud->last_spawn = 0;
uwsgi_ud->daemonize = daemonize;
uwsgi_ud->pidfile = pidfile;
uwsgi_ud->control = 0;
uwsgi_ud->stop_signal = stop_signal;
uwsgi_ud->reload_signal = reload_signal;
if (!strcmp(opt, "attach-control-daemon")) {
uwsgi_ud->control = 1;
}
#ifdef UWSGI_SSL
uwsgi_ud->legion = legion;
#endif
uwsgi.daemons_cnt++;
}
void uwsgi_opt_add_daemon2(char *opt, char *value, void *none) {
struct uwsgi_daemon *uwsgi_ud = uwsgi.daemons, *old_ud;
char *d_command = NULL;
char *d_freq = NULL;
char *d_pidfile = NULL;
char *d_control = NULL;
char *d_legion = NULL;
char *d_daemonize = NULL;
char *d_touch = NULL;
char *d_stopsignal = NULL;
char *d_reloadsignal = NULL;
char *d_stdin = NULL;
char *d_uid = NULL;
char *d_gid = NULL;
char *arg = uwsgi_str(value);
if (uwsgi_kvlist_parse(arg, strlen(arg), ',', '=',
"command", &d_command,
"cmd", &d_command,
"exec", &d_command,
"freq", &d_freq,
"pidfile", &d_pidfile,
"control", &d_control,
"daemonize", &d_daemonize,
"daemon", &d_daemonize,
"touch", &d_touch,
"stopsignal", &d_stopsignal,
"stop_signal", &d_stopsignal,
"reloadsignal", &d_reloadsignal,
"reload_signal", &d_reloadsignal,
"stdin", &d_stdin,
"uid", &d_uid,
"gid", &d_gid,
NULL)) {
uwsgi_log("invalid --%s keyval syntax\n", opt);
exit(1);
}
if (!d_command) {
uwsgi_log("--%s: you need to specify a 'command' key\n", opt);
exit(1);
}
#ifndef UWSGI_SSL
if (d_legion) {
uwsgi_log("legion subsystem is not supported on this uWSGI version, rebuild with ssl support\n");
exit(1);
}
#endif
if (!uwsgi_ud) {
uwsgi.daemons = uwsgi_calloc(sizeof(struct uwsgi_daemon));
uwsgi_ud = uwsgi.daemons;
}
else {
while (uwsgi_ud) {
old_ud = uwsgi_ud;
uwsgi_ud = uwsgi_ud->next;
}
uwsgi_ud = uwsgi_calloc(sizeof(struct uwsgi_daemon));
old_ud->next = uwsgi_ud;
}
uwsgi_ud->command = d_command;
uwsgi_ud->freq = d_freq ? atoi(d_freq) : 10;
uwsgi_ud->daemonize = d_daemonize ? 1 : 0;
uwsgi_ud->pidfile = d_pidfile;
uwsgi_ud->stop_signal = d_stopsignal ? atoi(d_stopsignal) : SIGTERM;
uwsgi_ud->reload_signal = d_reloadsignal ? atoi(d_reloadsignal) : 0;
uwsgi_ud->control = d_control ? 1 : 0;
uwsgi_ud->uid = d_uid ? atoi(d_uid) : 0;
uwsgi_ud->gid = d_gid ? atoi(d_gid) : 0;
uwsgi_ud->honour_stdin = d_stdin ? 1 : 0;
#ifdef UWSGI_SSL
uwsgi_ud->legion = d_legion;
#endif
if (d_touch) {
size_t i,rlen = 0;
char **argv = uwsgi_split_quoted(d_touch, strlen(d_touch), ";", &rlen);
for(i=0;i<rlen;i++) {
uwsgi_string_new_list(&uwsgi_ud->touch, argv[i]);
}
if (argv) free(argv);
}
uwsgi.daemons_cnt++;
free(arg);
}
int bind_to_unix_dgram(char *socket_name) {
int serverfd;
struct sockaddr_un *uws_addr;
socklen_t len;
serverfd = socket(AF_UNIX, SOCK_DGRAM, 0);
if (serverfd < 0) {
uwsgi_error("socket()");
uwsgi_nuclear_blast();
}
if (unlink(socket_name) != 0 && errno != ENOENT) {
uwsgi_error("unlink()");
}
uws_addr = uwsgi_calloc(sizeof(struct sockaddr_un));
uws_addr->sun_family = AF_UNIX;
memcpy(uws_addr->sun_path, socket_name, UMIN(strlen(socket_name), 102));
len = strlen(socket_name);
#ifdef __HAIKU__
if (bind(serverfd, (struct sockaddr *) uws_addr, sizeof(struct sockaddr_un))) {
#else
if (bind(serverfd, (struct sockaddr *) uws_addr, len + ((void *) uws_addr->sun_path - (void *) uws_addr)) != 0) {
#endif
uwsgi_error("bind()");
uwsgi_nuclear_blast();
}
return serverfd;
}
int bind_to_unix(char *socket_name, int listen_queue, int chmod_socket, int abstract_socket) {
int serverfd;
struct sockaddr_un *uws_addr;
socklen_t len;
// leave 1 byte for abstract namespace (108 linux -> 104 bsd/mac)
if (strlen(socket_name) > 102) {
uwsgi_log("invalid socket name\n");
uwsgi_nuclear_blast();
}
if (socket_name[0] == '@') {
abstract_socket = 1;
}
else if (strlen(socket_name) > 1 && socket_name[0] == '\\' && socket_name[1] == '0') {
abstract_socket = 1;
}
uws_addr = malloc(sizeof(struct sockaddr_un));
if (uws_addr == NULL) {
uwsgi_error("malloc()");
uwsgi_nuclear_blast();
}
memset(uws_addr, 0, sizeof(struct sockaddr_un));
serverfd = socket(AF_UNIX, SOCK_STREAM, 0);
if (serverfd < 0) {
uwsgi_error("socket()");
uwsgi_nuclear_blast();
}
if (abstract_socket == 0) {
if (unlink(socket_name) != 0 && errno != ENOENT) {
uwsgi_error("unlink()");
}
}
if (abstract_socket == 1) {
uwsgi_log("setting abstract socket mode (warning: only Linux supports this)\n");
}
uws_addr->sun_family = AF_UNIX;
if (socket_name[0] == '@') {
memcpy(uws_addr->sun_path + abstract_socket, socket_name + 1, UMIN(strlen(socket_name + 1), 101));
len = strlen(socket_name) + 1;
}
else if (strlen(socket_name) > 1 && socket_name[0] == '\\' && socket_name[1] == '0') {
memcpy(uws_addr->sun_path + abstract_socket, socket_name + 2, UMIN(strlen(socket_name + 2), 101));
len = strlen(socket_name + 1) + 1;
}
else if (abstract_socket) {
memcpy(uws_addr->sun_path + 1, socket_name, UMIN(strlen(socket_name), 101));
len = strlen(socket_name) + 1;
}
else {
memcpy(uws_addr->sun_path + abstract_socket, socket_name, UMIN(strlen(socket_name), 102));
len = strlen(socket_name);
}
#ifdef __HAIKU__
if (bind(serverfd, (struct sockaddr *) uws_addr, sizeof(struct sockaddr_un))) {
#else
if (bind(serverfd, (struct sockaddr *) uws_addr, len + ((void *) uws_addr->sun_path - (void *) uws_addr)) != 0) {
#endif
uwsgi_error("bind()");
uwsgi_nuclear_blast();
}
if (listen(serverfd, listen_queue) != 0) {
uwsgi_error("listen()");
uwsgi_nuclear_blast();
}
// chmod unix socket for lazy users
if (chmod_socket == 1 && abstract_socket == 0) {
if (uwsgi.chmod_socket_value) {
if (chmod(socket_name, uwsgi.chmod_socket_value) != 0) {
uwsgi_error("chmod()");
}
}
else {
uwsgi_log("chmod() socket to 666 for lazy and brave users\n");
if (chmod(socket_name, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) != 0) {
uwsgi_error("chmod()");
}
}
}
free(uws_addr);
return serverfd;
}
#ifdef UWSGI_UDP
int bind_to_udp(char *socket_name, int multicast, int broadcast) {
int serverfd;
struct sockaddr_in uws_addr;
char *udp_port;
int bcast = 1;
int reuse = 1;
#ifdef UWSGI_MULTICAST
struct ip_mreq mc;
uint8_t loop = 1;
#endif
udp_port = strchr(socket_name, ':');
if (udp_port == NULL) {
return -1;
}
udp_port[0] = 0;
if (socket_name[0] == 0 && multicast) {
uwsgi_log("invalid multicast address\n");
return -1;
}
memset(&uws_addr, 0, sizeof(struct sockaddr_in));
uws_addr.sin_family = AF_INET;
uws_addr.sin_port = htons(atoi(udp_port + 1));
#ifdef UWSGI_MULTICAST
if (!broadcast && !multicast) {
char quad[4];
char *first_part = strchr(socket_name, '.');
if (first_part && first_part - socket_name < 4) {
memset(quad, 0, 4);
memcpy(quad, socket_name, first_part - socket_name);
if (atoi(quad) >= 224 && atoi(quad) <= 239) {
multicast = 1;
}
}
#else
if (!broadcast) {
#endif
if (!strcmp(socket_name, "255.255.255.255")) {
broadcast = 1;
}
}
if (broadcast) {
uws_addr.sin_addr.s_addr = INADDR_BROADCAST;
}
else if (socket_name[0] != 0) {
uws_addr.sin_addr.s_addr = inet_addr(socket_name);
}
else {
uws_addr.sin_addr.s_addr = INADDR_ANY;
}
serverfd = socket(AF_INET, SOCK_DGRAM, 0);
if (serverfd < 0) {
uwsgi_error("socket()");
return -1;
}
if (setsockopt(serverfd, SOL_SOCKET, SO_REUSEADDR, (const void *) &reuse, sizeof(int)) < 0) {
uwsgi_error("setsockopt()");
}
#ifdef UWSGI_MULTICAST
if (multicast) {
// if multicast is enabled remember to bind to INADDR_ANY
uws_addr.sin_addr.s_addr = INADDR_ANY;
mc.imr_multiaddr.s_addr = inet_addr(socket_name);
mc.imr_interface.s_addr = INADDR_ANY;
}
#endif
if (broadcast) {
if (setsockopt(serverfd, SOL_SOCKET, SO_BROADCAST, &bcast, sizeof(bcast))) {
perror("setsockopt");
close(serverfd);
return -1;
}
}
if (bind(serverfd, (struct sockaddr *) &uws_addr, sizeof(uws_addr)) != 0) {
uwsgi_error("bind()");
close(serverfd);
return -1;
}
#ifdef UWSGI_MULTICAST
if (multicast) {
uwsgi_log("[uWSGI] joining multicast group: %s:%d\n", socket_name, ntohs(uws_addr.sin_port));
if (setsockopt(serverfd, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop))) {
uwsgi_error("setsockopt()");
}
if (setsockopt(serverfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mc, sizeof(mc))) {
uwsgi_error("setsockopt()");
}
if (setsockopt(serverfd, IPPROTO_IP, IP_MULTICAST_TTL, &uwsgi.multicast_ttl, sizeof(uwsgi.multicast_ttl))) {
uwsgi_error("setsockopt()");
}
}
#endif
udp_port[0] = ':';
return serverfd;
}
#endif
int uwsgi_connectn(char *socket_name, uint16_t len, int timeout, int async) {
int fd;
char *zeroed_socket_name = uwsgi_concat2n(socket_name, len, "", 0);
fd = uwsgi_connect(zeroed_socket_name, timeout, async);
free(zeroed_socket_name);
return fd;
}
static void uwsgi_rados_add_mountpoint(char *arg, size_t arg_len) {
struct uwsgi_rados_mountpoint *urmp = uwsgi_calloc(sizeof(struct uwsgi_rados_mountpoint));
if (uwsgi_kvlist_parse(arg, arg_len, ',', '=',
"mountpoint", &urmp->mountpoint,
"config", &urmp->config,
"pool", &urmp->pool,
"timeout", &urmp->str_timeout,
"allow_put", &urmp->allow_put,
"allow_delete", &urmp->allow_delete,
"allow_mkcol", &urmp->allow_mkcol,
"allow_propfind", &urmp->allow_propfind,
"username", &urmp->username,
"buffer_size", &urmp->str_buffer_size,
"put_buffer_size", &urmp->str_put_buffer_size,
NULL)) {
uwsgi_log("unable to parse rados mountpoint definition\n");
exit(1);
}
if (!urmp->mountpoint|| !urmp->pool) {
uwsgi_log("[rados] mount requires a mountpoint, and a pool name.\n");
exit(1);
}
if (urmp->str_timeout) {
urmp->timeout = atoi(urmp->str_timeout);
}
if (urmp->str_buffer_size) {
urmp->buffer_size = atoi(urmp->str_buffer_size);
if (urmp->buffer_size > MAX_BUF_SIZE) {
urmp->buffer_size = MAX_BUF_SIZE;
}
else if (urmp->buffer_size < MIN_BUF_SIZE) {
urmp->buffer_size = MIN_BUF_SIZE;
}
}
else {
urmp->buffer_size = DEF_BUF_SIZE;
}
if (urmp->str_put_buffer_size) {
urmp->put_buffer_size = atoi(urmp->str_put_buffer_size);
if (urmp->put_buffer_size > MAX_BUF_SIZE) {
urmp->put_buffer_size = MAX_BUF_SIZE;
}
else if (urmp->put_buffer_size < MIN_BUF_SIZE) {
urmp->put_buffer_size = MIN_BUF_SIZE;
}
}
else {
urmp->put_buffer_size = urmp->buffer_size;
}
time_t now = uwsgi_now();
uwsgi_log("[rados] mounting %s ...\n", urmp->mountpoint);
rados_t cluster;
if (rados_create(&cluster, urmp->username) < 0) {
uwsgi_error("can't create Ceph cluster handle");
exit(1);
}
urmp->cluster = cluster;
if (urmp->config)
uwsgi_log("using Ceph conf:%s\n", urmp->config);
else
uwsgi_log("using default Ceph conf.\n");
if (rados_conf_read_file(cluster, urmp->config) < 0) {
uwsgi_error("can't configure Ceph cluster handle");
exit(1);
}
int timeout = urmp->timeout ? urmp->timeout : urados.timeout;
char *timeout_str = uwsgi_num2str(timeout);
rados_conf_set(cluster, "client_mount_timeout", timeout_str);
rados_conf_set(cluster, "rados_mon_op_timeout", timeout_str);
rados_conf_set(cluster, "rados_osd_op_timeout", timeout_str);
free(timeout_str);
if (rados_connect(cluster) < 0) {
uwsgi_error("can't connect with Ceph cluster");
exit(1);
}
void *ctx_ptr;
if (uwsgi.threads > 1) {
int i;
rados_ioctx_t *ctxes = uwsgi_calloc(sizeof(rados_ioctx_t) * uwsgi.threads);
for(i=0;i<uwsgi.threads;i++) {
if (rados_ioctx_create(cluster, urmp->pool, &ctxes[i]) < 0) {
uwsgi_error("can't open rados pool")
rados_shutdown(cluster);
exit(1);
}
}
ctx_ptr = ctxes;
}
else {
rados_ioctx_t ctx;
if (rados_ioctx_create(cluster, urmp->pool, &ctx) < 0) {
uwsgi_error("can't open rados pool")
rados_shutdown(cluster);
exit(1);
}
ctx_ptr = ctx;
}
char fsid[37];
rados_cluster_fsid(cluster, fsid, 37);
uwsgi_log("connected to Ceph pool: %s on cluster %.*s\n", urmp->pool, 37, fsid);
int id = uwsgi_apps_cnt;
struct uwsgi_app *ua = uwsgi_add_app(id, rados_plugin.modifier1, urmp->mountpoint, strlen(urmp->mountpoint), NULL, (void*)1);
if (!ua) {
uwsgi_log("[rados] unable to mount %s\n", urmp->mountpoint);
rados_shutdown(cluster);
exit(1);
}
ua->responder0 = ctx_ptr;
ua->responder1 = urmp;
ua->started_at = now;
ua->startup_time = uwsgi_now() - now;
uwsgi_log("Rados app/mountpoint %d (%s) loaded in %d seconds at %p\n", id, urmp->mountpoint, (int) ua->startup_time, ctx_ptr);
}
static void carbon_post_init() {
int i;
struct uwsgi_string_list *usl = u_carbon.servers;
if (!uwsgi.sockets) return;
if (!u_carbon.servers) return;
while(usl) {
struct carbon_server_list *u_server = uwsgi_calloc(sizeof(struct carbon_server_list));
u_server->value = usl->value;
u_server->healthy = 1;
u_server->errors = 0;
if (u_carbon.servers_data) {
u_server->next = u_carbon.servers_data;
}
u_carbon.servers_data = u_server;
uwsgi_log("[carbon] added server %s\n", usl->value);
usl = usl->next;
}
if (!u_carbon.root_node) u_carbon.root_node = "uwsgi.";
if (strlen(u_carbon.root_node) && !uwsgi_endswith(u_carbon.root_node, ".")) {
u_carbon.root_node = uwsgi_concat2(u_carbon.root_node, ".");
}
if (u_carbon.freq < 1) u_carbon.freq = 60;
if (u_carbon.timeout < 1) u_carbon.timeout = 3;
if (u_carbon.max_retries <= 0) u_carbon.max_retries = 1;
if (u_carbon.retry_delay <= 0) u_carbon.retry_delay = 7;
if (!u_carbon.id) {
u_carbon.id = uwsgi_str(uwsgi.sockets->name);
for(i=0;i<(int)strlen(u_carbon.id);i++) {
if (u_carbon.id[i] == '.') u_carbon.id[i] = '_';
}
}
u_carbon.hostname = uwsgi_str(uwsgi.hostname);
if (u_carbon.hostname_dot_replacement) {
for(i=0;i<(int)strlen(u_carbon.hostname);i++) {
if (u_carbon.hostname[i] == '.') u_carbon.hostname[i] = u_carbon.hostname_dot_replacement[0];
}
}
if (!u_carbon.last_busyness_values) {
u_carbon.last_busyness_values = uwsgi_calloc(sizeof(unsigned long long) * uwsgi.numproc);
}
if (!u_carbon.current_busyness_values) {
u_carbon.current_busyness_values = uwsgi_calloc(sizeof(unsigned long long) * uwsgi.numproc);
}
if (!u_carbon.was_busy) {
u_carbon.was_busy = uwsgi_calloc(sizeof(int) * uwsgi.numproc);
}
// set next update to now()+retry_delay, this way we will have first flush just after start
u_carbon.last_update = uwsgi_now() - u_carbon.freq + u_carbon.retry_delay;
uwsgi_log("[carbon] carbon plugin started, %is frequency, %is timeout, max retries %i, retry delay %is\n",
u_carbon.freq, u_carbon.timeout, u_carbon.max_retries, u_carbon.retry_delay);
struct uwsgi_stats_pusher_instance *uspi = uwsgi_stats_pusher_add(u_carbon.pusher, NULL);
uspi->freq = u_carbon.freq;
// no need to generate the json
uspi->raw=1;
}