/* Prepare a recently-created socket for listening. */ static grpc_error *prepare_socket(int fd, const struct sockaddr *addr, size_t addr_len, bool so_reuseport, int *port) { struct sockaddr_storage sockname_temp; socklen_t sockname_len; grpc_error *err = GRPC_ERROR_NONE; GPR_ASSERT(fd >= 0); if (so_reuseport) { err = grpc_set_socket_reuse_port(fd, 1); if (err != GRPC_ERROR_NONE) goto error; } err = grpc_set_socket_nonblocking(fd, 1); if (err != GRPC_ERROR_NONE) goto error; err = grpc_set_socket_cloexec(fd, 1); if (err != GRPC_ERROR_NONE) goto error; if (!grpc_is_unix_socket(addr)) { err = grpc_set_socket_low_latency(fd, 1); if (err != GRPC_ERROR_NONE) goto error; err = grpc_set_socket_reuse_addr(fd, 1); if (err != GRPC_ERROR_NONE) goto error; } err = grpc_set_socket_no_sigpipe_if_possible(fd); if (err != GRPC_ERROR_NONE) goto error; GPR_ASSERT(addr_len < ~(socklen_t)0); if (bind(fd, addr, (socklen_t)addr_len) < 0) { err = GRPC_OS_ERROR(errno, "bind"); goto error; } if (listen(fd, get_max_accept_queue_size()) < 0) { err = GRPC_OS_ERROR(errno, "listen"); goto error; } sockname_len = sizeof(sockname_temp); if (getsockname(fd, (struct sockaddr *)&sockname_temp, &sockname_len) < 0) { err = GRPC_OS_ERROR(errno, "getsockname"); goto error; } *port = grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); return GRPC_ERROR_NONE; error: GPR_ASSERT(err != GRPC_ERROR_NONE); if (fd >= 0) { close(fd); } grpc_error *ret = grpc_error_set_int( GRPC_ERROR_CREATE_REFERENCING("Unable to configure socket", &err, 1), GRPC_ERROR_INT_FD, fd); GRPC_ERROR_UNREF(err); return ret; }
/* Prepare a recently-created socket for listening. */ static int prepare_socket(int fd, const struct sockaddr *addr, size_t addr_len) { struct sockaddr_storage sockname_temp; socklen_t sockname_len; if (fd < 0) { goto error; } if (!grpc_set_socket_nonblocking(fd, 1) || !grpc_set_socket_cloexec(fd, 1) || (addr->sa_family != AF_UNIX && (!grpc_set_socket_low_latency(fd, 1) || !grpc_set_socket_reuse_addr(fd, 1))) || !grpc_set_socket_no_sigpipe_if_possible(fd)) { gpr_log(GPR_ERROR, "Unable to configure socket %d: %s", fd, strerror(errno)); goto error; } GPR_ASSERT(addr_len < ~(socklen_t)0); if (bind(fd, addr, (socklen_t)addr_len) < 0) { char *addr_str; grpc_sockaddr_to_string(&addr_str, addr, 0); gpr_log(GPR_ERROR, "bind addr=%s: %s", addr_str, strerror(errno)); gpr_free(addr_str); goto error; } if (listen(fd, get_max_accept_queue_size()) < 0) { gpr_log(GPR_ERROR, "listen: %s", strerror(errno)); goto error; } sockname_len = sizeof(sockname_temp); if (getsockname(fd, (struct sockaddr *)&sockname_temp, &sockname_len) < 0) { goto error; } return grpc_sockaddr_get_port((struct sockaddr *)&sockname_temp); error: if (fd >= 0) { close(fd); } return -1; }