static void fcgi_pass(struct fcgi_context *fc)
{
char buf[FCGI_BUF_SIZE];
fd_set rset;
int maxfd = 1 + max_va(fc->fd_stdout, fc->fd_stderr, MAX_VA_SENTINEL);
int nready;
const char *err;
if (!fcgi_pass_request(fc))
return;
/* now pass CGI reply back */
while (fc->fd_stdout >= 0 || fc->fd_stderr >= 0) {
FD_ZERO(&rset);
if (fc->fd_stdout >= 0) FD_SET(fc->fd_stdout, &rset);
if (fc->fd_stderr >= 0) FD_SET(fc->fd_stderr, &rset);
nready = select(maxfd, &rset, NULL, NULL, NULL);
if (nready < 0) {
if (errno == EAGAIN) continue;
fcgi_finish(fc, "waiting for CGI reply");
return;
}
if (fc->fd_stdout >= 0 && FD_ISSET(fc->fd_stdout, &rset)) {
err = fcgi_pass_fd(fc, &fc->fd_stdout, FCGI_stdout, buf, sizeof(buf));
if (err) {
fcgi_finish(fc, err);
return;
}
}
if (fc->fd_stderr >= 0 && FD_ISSET(fc->fd_stderr, &rset)) {
if (stderr_to_fastcgi)
err = fcgi_pass_fd(fc, &fc->fd_stderr, FCGI_stderr, buf, sizeof(buf));
else
err = fcgi_pass_raw_fd(&fc->fd_stderr, 2, buf, sizeof(buf));
if (err) {
fcgi_finish(fc, err);
return;
}
}
}
fc->cgi_pid = 0;
fcgi_finish(fc, "reading CGI reply (no response received)");
}
inline first_type max_va( const first_type& arg_0,
const second_type& arg_1, remaining_types... remaining_args )
{
return max_va( max_va( arg_0, arg_1 ), remaining_args... );
}
