apr_status_t procmgr_fetch_cmd(fcgid_command * command,
server_rec * main_server)
{
apr_status_t rv;
/* Sanity check */
if (!g_pm_read_pipe)
return APR_EPIPE;
/* Wait for next command */
#if APR_MAJOR_VERSION < 2
rv = apr_wait_for_io_or_timeout(g_pm_read_pipe, NULL, FOR_READ);
#else
rv = apr_file_pipe_wait(g_pm_read_pipe, APR_WAIT_READ);
#endif
/* Log any unexpect result */
if (rv != APR_SUCCESS && !APR_STATUS_IS_TIMEUP(rv)) {
ap_log_error(APLOG_MARK, APLOG_WARNING, rv, main_server,
"mod_fcgid: error while waiting for message from pipe");
return rv;
}
/* Timeout */
if (rv != APR_SUCCESS)
return rv;
return apr_file_read_full(g_pm_read_pipe, command, sizeof(*command),
NULL);
}
apr_status_t apr_wait_for_io_or_timeout(apr_file_t *f, apr_socket_t *s,
int for_read)
{
if (f) {
return apr_file_pipe_wait(f, for_read ? APR_WAIT_READ : APR_WAIT_WRITE);
}
else if (s) {
return apr_socket_wait(s, for_read ? APR_WAIT_READ : APR_WAIT_WRITE);
}
/* Didn't specify a file or socket */
return APR_EINVAL;
}
