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#include "uwsgi.h"
extern struct uwsgi_server uwsgi;
void uwsgi_systemd_notify(char *message) {
struct msghdr *msghdr = (struct msghdr *) uwsgi.notification_object;
struct iovec *iovec = msghdr->msg_iov;
iovec[0].iov_base = "STATUS=";
iovec[0].iov_len = 7;
iovec[1].iov_base = message;
iovec[1].iov_len = strlen(message);
iovec[2].iov_base = "\n";
iovec[2].iov_len = 1;
msghdr->msg_iovlen = 3;
if (sendmsg(uwsgi.notification_fd, msghdr, 0) < 0) {
uwsgi_error("sendmsg()");
}
}
void uwsgi_systemd_notify_ready(void) {
struct msghdr *msghdr = (struct msghdr *) uwsgi.notification_object;
struct iovec *iovec = msghdr->msg_iov;
iovec[0].iov_base = "STATUS=uWSGI is ready\nREADY=1\n";
iovec[0].iov_len = 30;
msghdr->msg_iovlen = 1;
if (sendmsg(uwsgi.notification_fd, msghdr, 0) < 0) {
uwsgi_error("sendmsg()");
}
}
void uwsgi_systemd_init(char *systemd_socket) {
struct sockaddr_un *sd_sun;
struct msghdr *msghdr;
uwsgi.notification_fd = socket(AF_UNIX, SOCK_DGRAM, 0);
if (uwsgi.notification_fd < 0) {
uwsgi_error("socket()");
return;
}
size_t len = strlen(systemd_socket);
sd_sun = uwsgi_malloc(sizeof(struct sockaddr_un));
memset(sd_sun, 0, sizeof(struct sockaddr_un));
sd_sun->sun_family = AF_UNIX;
strncpy(sd_sun->sun_path, systemd_socket, UMIN(len, sizeof(sd_sun->sun_path)));
if (sd_sun->sun_path[0] == '@')
sd_sun->sun_path[0] = 0;
msghdr = uwsgi_malloc(sizeof(struct msghdr));
memset(msghdr, 0, sizeof(struct msghdr));
msghdr->msg_iov = uwsgi_malloc(sizeof(struct iovec) * 3);
memset(msghdr->msg_iov, 0, sizeof(struct iovec) * 3);
msghdr->msg_name = sd_sun;
msghdr->msg_namelen = sizeof(struct sockaddr_un) - (sizeof(sd_sun->sun_path) - len);
uwsgi.notification_object = msghdr;
uwsgi.notify = uwsgi_systemd_notify;
uwsgi.notify_ready = uwsgi_systemd_notify_ready;
}
int uwsgi_notify_socket_manage(int fd) {
char buf[8192];
ssize_t rlen = read(fd, buf, 8192);
if (rlen < 0) {
if (uwsgi_is_again()) return 0;
uwsgi_error("uwsgi_notify_socket_manage()/read()");
exit(1);
}
if (rlen > 0) {
uwsgi_log_verbose("[notify-socket] %.*s\n", rlen, buf);
}
return 0;
}
int uwsgi_notify_msg(char *dst, char *msg, size_t len) {
static int notify_fd = -1;
if (notify_fd < 0) {
notify_fd = socket(AF_UNIX, SOCK_DGRAM, 0);
if (notify_fd < 0) {
uwsgi_error("uwsgi_notify_msg()/socket()");
return -1;
}
}
struct sockaddr_un un_addr;
memset(&un_addr, 0, sizeof(struct sockaddr_un));
un_addr.sun_family = AF_UNIX;
// use 102 as the magic number
strncat(un_addr.sun_path, dst, 102);
if (sendto(notify_fd, msg, len, 0, (struct sockaddr *) &un_addr, sizeof(un_addr)) < 0) {
return -1;
}
return 0;
}
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