/* Called when a new TCP connection request arrives in the listening port. */
static void listen_cb(grpc_exec_ctx *exec_ctx, void *arg, /*=sv_arg*/
grpc_error *error) {
server *sv = arg;
int fd;
int flags;
session *se;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
grpc_fd *listen_em_fd = sv->em_fd;
if (error != GRPC_ERROR_NONE) {
listen_shutdown_cb(exec_ctx, arg, 1);
return;
}
fd = accept(grpc_fd_wrapped_fd(listen_em_fd), (struct sockaddr *)&ss, &slen);
GPR_ASSERT(fd >= 0);
GPR_ASSERT(fd < FD_SETSIZE);
flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
se = gpr_malloc(sizeof(*se));
se->sv = sv;
se->em_fd = grpc_fd_create(fd, "listener");
grpc_pollset_add_fd(exec_ctx, g_pollset, se->em_fd);
GRPC_CLOSURE_INIT(&se->session_read_closure, session_read_cb, se,
grpc_schedule_on_exec_ctx);
grpc_fd_notify_on_read(exec_ctx, se->em_fd, &se->session_read_closure);
grpc_fd_notify_on_read(exec_ctx, listen_em_fd, &sv->listen_closure);
}
/* Called when a new TCP connection request arrives in the listening port. */
static void listen_cb(void *arg, /*=sv_arg*/
int success) {
server *sv = arg;
int fd;
int flags;
session *se;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
grpc_fd *listen_em_fd = sv->em_fd;
if (!success) {
listen_shutdown_cb(arg, 1);
return;
}
fd = accept(listen_em_fd->fd, (struct sockaddr *)&ss, &slen);
GPR_ASSERT(fd >= 0);
GPR_ASSERT(fd < FD_SETSIZE);
flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
se = gpr_malloc(sizeof(*se));
se->sv = sv;
se->em_fd = grpc_fd_create(fd, "listener");
se->session_read_closure.cb = session_read_cb;
se->session_read_closure.cb_arg = se;
grpc_fd_notify_on_read(se->em_fd, &se->session_read_closure);
grpc_fd_notify_on_read(listen_em_fd, &sv->listen_closure);
}
