static bool try_command(json_t *cmd, int timeout)
{
w_stm_t client = NULL;
w_jbuffer_t buffer;
w_jbuffer_t output_pdu_buffer;
int err;
client = w_stm_connect(sock_name, timeout * 1000);
if (client == NULL) {
return false;
}
if (!cmd) {
w_stm_close(client);
return true;
}
w_json_buffer_init(&buffer);
// Send command
if (!w_ser_write_pdu(server_pdu, &buffer, client, cmd)) {
err = errno;
w_log(W_LOG_ERR, "error sending PDU to server\n");
w_json_buffer_free(&buffer);
w_stm_close(client);
errno = err;
return false;
}
w_json_buffer_reset(&buffer);
w_json_buffer_init(&output_pdu_buffer);
do {
if (!w_json_buffer_passthru(
&buffer, output_pdu, &output_pdu_buffer, client)) {
err = errno;
w_json_buffer_free(&buffer);
w_json_buffer_free(&output_pdu_buffer);
w_stm_close(client);
errno = err;
return false;
}
} while (persistent);
w_json_buffer_free(&buffer);
w_json_buffer_free(&output_pdu_buffer);
w_stm_close(client);
return true;
}
bool w_json_buffer_passthru(w_jbuffer_t *jr,
enum w_pdu_type output_pdu,
w_jbuffer_t *output_pdu_buf,
w_stm_t stm)
{
json_t *j;
json_error_t jerr;
bool res;
w_stm_set_nonblock(stm, false);
if (!read_and_detect_pdu(jr, stm, &jerr)) {
w_log(W_LOG_ERR, "failed to identify PDU: %s\n",
jerr.text);
return false;
}
if (jr->pdu_type == output_pdu) {
// We can stream it through
if (!stream_pdu(jr, stm, &jerr)) {
w_log(W_LOG_ERR, "stream_pdu: %s\n", jerr.text);
return false;
}
return true;
}
j = read_pdu_into_json(jr, stm, &jerr);
if (!j) {
w_log(W_LOG_ERR, "failed to parse response: %s\n",
jerr.text);
return false;
}
w_json_buffer_reset(output_pdu_buf);
res = w_ser_write_pdu(output_pdu, output_pdu_buf, w_stm_stdout(), j);
json_decref(j);
return res;
}
bool w_json_buffer_passthru(w_jbuffer_t *jr,
enum w_pdu_type output_pdu,
int fd)
{
json_t *j;
json_error_t jerr;
bool res;
if (!read_and_detect_pdu(jr, fd, &jerr)) {
w_log(W_LOG_ERR, "failed to identify PDU: %s\n",
jerr.text);
return false;
}
if (jr->pdu_type == output_pdu) {
// We can stream it through
if (!stream_pdu(jr, fd, &jerr)) {
w_log(W_LOG_ERR, "stream_pdu: %s\n", jerr.text);
return false;
}
return true;
}
j = read_pdu_into_json(jr, fd, &jerr);
if (!j) {
w_log(W_LOG_ERR, "failed to parse response: %s\n",
jerr.text);
return false;
}
w_json_buffer_reset(jr);
res = w_ser_write_pdu(output_pdu, jr, STDOUT_FILENO, j);
json_decref(j);
return res;
}
static bool try_command(json_t *cmd, int timeout)
{
int fd;
int res;
int tries;
int bufsize;
w_jbuffer_t buffer;
fd = socket(PF_LOCAL, SOCK_STREAM, 0);
if (fd == -1) {
perror("socket");
return false;
}
tries = 0;
do {
res = connect(fd, (struct sockaddr*)&un, sizeof(un));
if (res == 0) {
break;
}
if (timeout && tries < timeout && should_start(errno)) {
// Wait for socket to come up
sleep(1);
continue;
}
} while (++tries < timeout);
if (res) {
close(fd);
return false;
}
if (!cmd) {
close(fd);
return true;
}
bufsize = WATCHMAN_IO_BUF_SIZE;
setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));
w_json_buffer_init(&buffer);
// Send command
if (!w_ser_write_pdu(server_pdu, &buffer, fd, cmd)) {
w_log(W_LOG_ERR, "error sending PDU to server\n");
w_json_buffer_free(&buffer);
close(fd);
return false;
}
w_json_buffer_reset(&buffer);
do {
if (!w_json_buffer_passthru(&buffer, output_pdu, fd)) {
w_json_buffer_free(&buffer);
close(fd);
return false;
}
} while (persistent);
w_json_buffer_free(&buffer);
close(fd);
return true;
}