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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab ft=cpp
#include "common/errno.h"
#include "common/Throttle.h"
#include "common/WorkQueue.h"
#include "rgw_rest.h"
#include "rgw_frontend.h"
#include "rgw_request.h"
#include "rgw_process.h"
#include "rgw_loadgen.h"
#include "rgw_client_io.h"
#include "rgw_client_io_filters.h"
#define dout_subsys ceph_subsys_rgw
void RGWFCGXProcess::run()
{
string socket_path;
string socket_port;
string socket_host;
int socket_backlog;
conf->get_val("socket_path", "", &socket_path);
conf->get_val("socket_port", g_conf()->rgw_port, &socket_port);
conf->get_val("socket_host", g_conf()->rgw_host, &socket_host);
socket_backlog = g_conf()->rgw_fcgi_socket_backlog;
if (socket_path.empty() && socket_port.empty() && socket_host.empty()) {
socket_path = g_conf()->rgw_socket_path;
if (socket_path.empty()) {
dout(0) << "ERROR: no socket server point defined, cannot "
"start fcgi frontend" << dendl;
return;
}
}
if (!socket_path.empty()) {
string path_str = socket_path;
/* this is necessary, as FCGX_OpenSocket might not return an
* error, but rather ungracefully exit */
int fd = open(path_str.c_str(), O_CREAT, 0644);
if (fd < 0) {
int err = errno;
/* ENXIO is actually expected, we'll get that if we try to open
* a unix domain socket */
if (err != ENXIO) {
dout(0) << "ERROR: cannot create socket: path=" << path_str
<< " error=" << cpp_strerror(err) << dendl;
return;
}
} else {
close(fd);
}
const char *path = path_str.c_str();
sock_fd = FCGX_OpenSocket(path, socket_backlog);
if (sock_fd < 0) {
dout(0) << "ERROR: FCGX_OpenSocket (" << path << ") returned "
<< sock_fd << dendl;
return;
}
if (chmod(path, 0777) < 0) {
dout(0) << "WARNING: couldn't set permissions on unix domain socket"
<< dendl;
}
} else if (!socket_port.empty()) {
string bind = socket_host + ":" + socket_port;
sock_fd = FCGX_OpenSocket(bind.c_str(), socket_backlog);
if (sock_fd < 0) {
dout(0) << "ERROR: FCGX_OpenSocket (" << bind.c_str() << ") returned "
<< sock_fd << dendl;
return;
}
}
m_tp.start();
FCGX_Request fcgx_reqs[max_connections];
QueueRing<FCGX_Request*> qr(max_connections);
for (int i = 0; i < max_connections; i++) {
FCGX_Request* fcgx = &fcgx_reqs[i];
FCGX_InitRequest(fcgx, sock_fd, 0);
qr.enqueue(fcgx);
}
for (;;) {
RGWFCGXRequest* req = new RGWFCGXRequest(store->getRados()->get_new_req_id(), &qr);
dout(10) << "allocated request req=" << hex << req << dec << dendl;
req_throttle.get(1);
int ret = FCGX_Accept_r(req->fcgx);
if (ret < 0) {
delete req;
dout(0) << "ERROR: FCGX_Accept_r returned " << ret << dendl;
req_throttle.put(1);
break;
}
req_wq.queue(req);
}
m_tp.drain(&req_wq);
m_tp.stop();
dout(20) << "cleaning up fcgx connections" << dendl;
for (int i = 0; i < max_connections; i++) {
FCGX_Finish_r(&fcgx_reqs[i]);
}
} /* RGWFCGXProcess::run */
void RGWFCGXProcess::handle_request(RGWRequest* r)
{
RGWFCGXRequest* const req = static_cast<RGWFCGXRequest*>(r);
RGWFCGX fcgxfe(req->fcgx);
auto real_client_io = rgw::io::add_reordering(
rgw::io::add_buffering(cct,
rgw::io::add_chunking(
&fcgxfe)));
RGWRestfulIO client_io(cct, &real_client_io);
int ret = process_request(store, rest, req, uri_prefix,
*auth_registry, &client_io, olog,
null_yield, nullptr);
if (ret < 0) {
/* we don't really care about return code */
dout(20) << "process_request() returned " << ret << dendl;
}
FCGX_Finish_r(req->fcgx);
delete req;
} /* RGWFCGXProcess::handle_request */
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