+#include <assert.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdint.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-#include <stdint.h>
-#include <assert.h>
-#include <arpa/inet.h>
-#include <curl/curl.h>
+#include <sys/epoll.h>
+#include <sys/sendfile.h>
#include <sys/socket.h>
-#include <pthread.h>
#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <sys/epoll.h>
-#include <errno.h>
-#include <vector>
-#include <string>
-#include <map>
+#include <unistd.h>
#include <algorithm>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+#include "accesslog.h"
+#include "log.h"
+#include "markpool.h"
#include "metacube.h"
-#include "server.h"
#include "mutexlock.h"
#include "parse.h"
+#include "server.h"
#include "state.pb.h"
+#include "stream.h"
+#include "util.h"
using namespace std;
-Client::Client(int sock)
- : sock(sock),
- state(Client::READING_REQUEST),
- stream(NULL),
- header_or_error_bytes_sent(0),
- bytes_sent(0)
-{
- request.reserve(1024);
-}
-
-Client::Client(const ClientProto &serialized, Stream *stream)
- : sock(serialized.sock()),
- state(State(serialized.state())),
- request(serialized.request()),
- stream_id(serialized.stream_id()),
- stream(stream),
- header_or_error(serialized.header_or_error()),
- header_or_error_bytes_sent(serialized.header_or_error_bytes_sent()),
- bytes_sent(serialized.bytes_sent())
-{
-}
-
-ClientProto Client::serialize() const
-{
- ClientProto serialized;
- serialized.set_sock(sock);
- serialized.set_state(state);
- serialized.set_request(request);
- serialized.set_stream_id(stream_id);
- serialized.set_header_or_error(header_or_error);
- serialized.set_header_or_error_bytes_sent(serialized.header_or_error_bytes_sent());
- serialized.set_bytes_sent(bytes_sent);
- return serialized;
-}
-
-Stream::Stream(const string &stream_id)
- : stream_id(stream_id),
- data(new char[BACKLOG_SIZE]),
- data_size(0)
-{
- memset(data, 0, BACKLOG_SIZE);
-}
-
-Stream::~Stream()
-{
- delete[] data;
-}
-
-Stream::Stream(const StreamProto &serialized)
- : stream_id(serialized.stream_id()),
- header(serialized.header()),
- data(new char[BACKLOG_SIZE]),
- data_size(serialized.data_size())
-{
- assert(serialized.data().size() == BACKLOG_SIZE);
- memcpy(data, serialized.data().data(), BACKLOG_SIZE);
-}
-
-StreamProto Stream::serialize() const
-{
- StreamProto serialized;
- serialized.set_header(header);
- serialized.set_data(string(data, data + BACKLOG_SIZE));
- serialized.set_data_size(data_size);
- serialized.set_stream_id(stream_id);
- return serialized;
-}
+extern AccessLogThread *access_log;
Server::Server()
{
pthread_mutex_init(&mutex, NULL);
+ pthread_mutex_init(&queued_data_mutex, NULL);
epoll_fd = epoll_create(1024); // Size argument is ignored.
if (epoll_fd == -1) {
- perror("epoll_fd");
+ log_perror("epoll_fd");
exit(1);
}
}
Server::~Server()
{
- int ret;
- do {
- ret = close(epoll_fd);
- } while (ret == -1 && errno == EINTR);
-
- if (ret == -1) {
- perror("close(epoll_fd)");
+ for (size_t i = 0; i < streams.size(); ++i) {
+ delete streams[i];
}
-}
-void Server::run()
-{
- should_stop = false;
-
- // Joinable is already the default, but it's good to be certain.
- pthread_attr_t attr;
- pthread_attr_init(&attr);
- pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
- pthread_create(&worker_thread, &attr, Server::do_work_thunk, this);
+ safe_close(epoll_fd);
}
-
-void Server::stop()
+
+vector<ClientStats> Server::get_client_stats() const
{
- {
- MutexLock lock(&mutex);
- should_stop = true;
- }
+ vector<ClientStats> ret;
- if (pthread_join(worker_thread, NULL) == -1) {
- perror("pthread_join");
- exit(1);
+ MutexLock lock(&mutex);
+ for (map<int, Client>::const_iterator client_it = clients.begin();
+ client_it != clients.end();
+ ++client_it) {
+ ret.push_back(client_it->second.get_stats());
}
-}
-
-void *Server::do_work_thunk(void *arg)
-{
- Server *server = static_cast<Server *>(arg);
- server->do_work();
- return NULL;
+ return ret;
}
void Server::do_work()
{
- for ( ;; ) {
- int nfds = epoll_wait(epoll_fd, events, EPOLL_MAX_EVENTS, EPOLL_TIMEOUT_MS);
- if (nfds == -1 && errno == EINTR) {
- continue;
- }
- if (nfds == -1) {
- perror("epoll_wait");
+ while (!should_stop()) {
+ // Wait until there's activity on at least one of the fds,
+ // or 20 ms (about one frame at 50 fps) has elapsed.
+ //
+ // We could in theory wait forever and rely on wakeup()
+ // from add_client_deferred() and add_data_deferred(),
+ // but wakeup is a pretty expensive operation, and the
+ // two threads might end up fighting over a lock, so it's
+ // seemingly (much) more efficient to just have a timeout here.
+ int nfds = epoll_pwait(epoll_fd, events, EPOLL_MAX_EVENTS, EPOLL_TIMEOUT_MS, &sigset_without_usr1_block);
+ if (nfds == -1 && errno != EINTR) {
+ log_perror("epoll_wait");
exit(1);
}
MutexLock lock(&mutex); // We release the mutex between iterations.
- if (should_stop) {
- return;
- }
+ process_queued_data();
for (int i = 0; i < nfds; ++i) {
- int fd = events[i].data.fd;
- assert(clients.count(fd) != 0);
- Client *client = &clients[fd];
+ Client *client = reinterpret_cast<Client *>(events[i].data.u64);
if (events[i].events & (EPOLLERR | EPOLLRDHUP | EPOLLHUP)) {
close_client(client);
process_client(client);
}
- for (unsigned i = 0; i < to_process.size(); ++i) {
- process_client(to_process[i]);
+ for (size_t i = 0; i < streams.size(); ++i) {
+ vector<Client *> to_process;
+ swap(streams[i]->to_process, to_process);
+ for (size_t i = 0; i < to_process.size(); ++i) {
+ process_client(to_process[i]);
+ }
}
- to_process.clear();
}
}
-CubemapStateProto Server::serialize() const
+CubemapStateProto Server::serialize()
{
+ // We don't serialize anything queued, so empty the queues.
+ process_queued_data();
+
+ // Set all clients in a consistent state before serializing
+ // (ie., they have no remaining lost data). Otherwise, increasing
+ // the backlog could take clients into a newly valid area of the backlog,
+ // sending a stream of zeros instead of skipping the data as it should.
+ //
+ // TODO: Do this when clients are added back from serialized state instead;
+ // it would probably be less wasteful.
+ for (map<int, Client>::iterator client_it = clients.begin();
+ client_it != clients.end();
+ ++client_it) {
+ skip_lost_data(&client_it->second);
+ }
+
CubemapStateProto serialized;
for (map<int, Client>::const_iterator client_it = clients.begin();
client_it != clients.end();
++client_it) {
serialized.add_clients()->MergeFrom(client_it->second.serialize());
}
- for (map<string, Stream *>::const_iterator stream_it = streams.begin();
- stream_it != streams.end();
- ++stream_it) {
- serialized.add_streams()->MergeFrom(stream_it->second->serialize());
+ for (size_t i = 0; i < streams.size(); ++i) {
+ serialized.add_streams()->MergeFrom(streams[i]->serialize());
}
return serialized;
}
+void Server::add_client_deferred(int sock)
+{
+ MutexLock lock(&queued_data_mutex);
+ queued_add_clients.push_back(sock);
+}
+
void Server::add_client(int sock)
{
- MutexLock lock(&mutex);
- clients.insert(make_pair(sock, Client(sock)));
+ pair<map<int, Client>::iterator, bool> ret =
+ clients.insert(make_pair(sock, Client(sock)));
+ assert(ret.second == true); // Should not already exist.
+ Client *client_ptr = &ret.first->second;
// Start listening on data from this socket.
epoll_event ev;
ev.events = EPOLLIN | EPOLLET | EPOLLRDHUP;
- ev.data.u64 = 0; // Keep Valgrind happy.
- ev.data.fd = sock;
+ ev.data.u64 = reinterpret_cast<uint64_t>(client_ptr);
if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, sock, &ev) == -1) {
- perror("epoll_ctl(EPOLL_CTL_ADD)");
+ log_perror("epoll_ctl(EPOLL_CTL_ADD)");
exit(1);
}
- process_client(&clients[sock]);
+ process_client(client_ptr);
}
void Server::add_client_from_serialized(const ClientProto &client)
{
MutexLock lock(&mutex);
- Stream *stream = find_stream(client.stream_id());
- clients.insert(make_pair(client.sock(), Client(client, stream)));
- Client *client_ptr = &clients[client.sock()];
+ Stream *stream;
+ int stream_index = lookup_stream_by_url(client.url());
+ if (stream_index == -1) {
+ assert(client.state() != Client::SENDING_DATA);
+ stream = NULL;
+ } else {
+ stream = streams[stream_index];
+ }
+ pair<map<int, Client>::iterator, bool> ret =
+ clients.insert(make_pair(client.sock(), Client(client, stream)));
+ assert(ret.second == true); // Should not already exist.
+ Client *client_ptr = &ret.first->second;
// Start listening on data from this socket.
epoll_event ev;
// the sleeping array again soon.
ev.events = EPOLLOUT | EPOLLET | EPOLLRDHUP;
}
- ev.data.u64 = 0; // Keep Valgrind happy.
- ev.data.fd = client.sock();
+ ev.data.u64 = reinterpret_cast<uint64_t>(client_ptr);
if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, client.sock(), &ev) == -1) {
- perror("epoll_ctl(EPOLL_CTL_ADD)");
+ log_perror("epoll_ctl(EPOLL_CTL_ADD)");
exit(1);
}
if (client_ptr->state == Client::SENDING_DATA &&
- client_ptr->bytes_sent == client_ptr->stream->data_size) {
- put_client_to_sleep(client_ptr);
+ client_ptr->stream_pos == client_ptr->stream->bytes_received) {
+ client_ptr->stream->put_client_to_sleep(client_ptr);
} else {
process_client(client_ptr);
}
}
-void Server::add_stream(const string &stream_id)
+int Server::lookup_stream_by_url(const std::string &url) const
+{
+ map<string, int>::const_iterator url_it = url_map.find(url);
+ if (url_it == url_map.end()) {
+ return -1;
+ }
+ return url_it->second;
+}
+
+int Server::add_stream(const string &url, size_t backlog_size, Stream::Encoding encoding)
{
MutexLock lock(&mutex);
- streams.insert(make_pair(stream_id, new Stream(stream_id)));
+ url_map.insert(make_pair(url, streams.size()));
+ streams.push_back(new Stream(url, backlog_size, encoding));
+ return streams.size() - 1;
}
-void Server::add_stream_from_serialized(const StreamProto &stream)
+int Server::add_stream_from_serialized(const StreamProto &stream, int data_fd)
+{
+ MutexLock lock(&mutex);
+ url_map.insert(make_pair(stream.url(), streams.size()));
+ streams.push_back(new Stream(stream, data_fd));
+ return streams.size() - 1;
+}
+
+void Server::set_backlog_size(int stream_index, size_t new_size)
+{
+ MutexLock lock(&mutex);
+ assert(stream_index >= 0 && stream_index < ssize_t(streams.size()));
+ streams[stream_index]->set_backlog_size(new_size);
+}
+
+void Server::set_encoding(int stream_index, Stream::Encoding encoding)
{
MutexLock lock(&mutex);
- streams.insert(make_pair(stream.stream_id(), new Stream(stream)));
+ assert(stream_index >= 0 && stream_index < ssize_t(streams.size()));
+ streams[stream_index]->encoding = encoding;
}
-void Server::set_header(const string &stream_id, const string &header)
+void Server::set_header(int stream_index, const string &http_header, const string &stream_header)
{
MutexLock lock(&mutex);
- find_stream(stream_id)->header = header;
+ assert(stream_index >= 0 && stream_index < ssize_t(streams.size()));
+ streams[stream_index]->http_header = http_header;
+ streams[stream_index]->stream_header = stream_header;
// If there are clients we haven't sent anything to yet, we should give
// them the header, so push back into the SENDING_HEADER state.
++client_it) {
Client *client = &client_it->second;
if (client->state == Client::SENDING_DATA &&
- client->bytes_sent == 0) {
+ client->stream_pos == 0) {
construct_header(client);
}
}
}
-void Server::add_data(const string &stream_id, const char *data, size_t bytes)
+void Server::set_mark_pool(int stream_index, MarkPool *mark_pool)
{
- if (bytes == 0) {
- return;
- }
-
MutexLock lock(&mutex);
- Stream *stream = find_stream(stream_id);
- size_t pos = stream->data_size % BACKLOG_SIZE;
- stream->data_size += bytes;
-
- if (pos + bytes > BACKLOG_SIZE) {
- size_t to_copy = BACKLOG_SIZE - pos;
- memcpy(stream->data + pos, data, to_copy);
- data += to_copy;
- bytes -= to_copy;
- pos = 0;
- }
+ assert(clients.empty());
+ assert(stream_index >= 0 && stream_index < ssize_t(streams.size()));
+ streams[stream_index]->mark_pool = mark_pool;
+}
- memcpy(stream->data + pos, data, bytes);
- wake_up_all_clients();
+void Server::add_data_deferred(int stream_index, const char *data, size_t bytes)
+{
+ MutexLock lock(&queued_data_mutex);
+ assert(stream_index >= 0 && stream_index < ssize_t(streams.size()));
+ streams[stream_index]->add_data_deferred(data, bytes);
}
// See the .h file for postconditions after this function.
return;
}
if (ret == -1) {
- perror("read");
+ log_perror("read");
close_client(client);
return;
}
return;
}
- // Guard against overlong requests gobbling up all of our space.
- if (client->request.size() + ret > MAX_CLIENT_REQUEST) {
- fprintf(stderr, "WARNING: fd %d sent overlong request!\n", client->sock);
+ RequestParseStatus status = wait_for_double_newline(&client->request, buf, ret);
+
+ switch (status) {
+ case RP_OUT_OF_SPACE:
+ log(WARNING, "[%s] Client sent overlong request!", client->remote_addr.c_str());
close_client(client);
return;
- }
-
- // See if we have \r\n\r\n anywhere in the request. We start three bytes
- // before what we just appended, in case we just got the final character.
- size_t existing_req_bytes = client->request.size();
- client->request.append(string(buf, buf + ret));
-
- size_t start_at = (existing_req_bytes >= 3 ? existing_req_bytes - 3 : 0);
- const char *ptr = reinterpret_cast<char *>(
- memmem(client->request.data() + start_at, client->request.size() - start_at,
- "\r\n\r\n", 4));
- if (ptr == NULL) {
+ case RP_NOT_FINISHED_YET:
// OK, we don't have the entire header yet. Fine; we'll get it later.
// See if there's more data for us.
goto read_request_again;
- }
-
- if (ptr != client->request.data() + client->request.size() - 4) {
- fprintf(stderr, "WARNING: fd %d had junk data after request!\n", client->sock);
+ case RP_EXTRA_DATA:
+ log(WARNING, "[%s] Junk data after request!", client->remote_addr.c_str());
close_client(client);
return;
+ case RP_FINISHED:
+ break;
}
+ assert(status == RP_FINISHED);
+
int error_code = parse_request(client);
if (error_code == 200) {
construct_header(client);
if (ret == -1) {
// Error! Postcondition #1.
- perror("write");
+ log_perror("write");
close_client(client);
return;
}
// but we'll start sending immediately as we get data.
// This is postcondition #3.
client->state = Client::SENDING_DATA;
- client->bytes_sent = client->stream->data_size;
- put_client_to_sleep(client);
+ if (client->stream_pos == size_t(-2)) {
+ client->stream_pos = std::min<size_t>(
+ client->stream->bytes_received - client->stream->backlog_size,
+ 0);
+ } else {
+ // client->stream_pos should be -1, but it might not be,
+ // if we have clients from an older version.
+ client->stream_pos = client->stream->bytes_received;
+ }
+ client->stream->put_client_to_sleep(client);
return;
}
case Client::SENDING_DATA: {
- // See if there's some data we've lost. Ideally, we should drop to a block boundary,
- // but resync will be the mux's problem.
- const Stream *stream = client->stream;
- size_t bytes_to_send = stream->data_size - client->bytes_sent;
+ skip_lost_data(client);
+ Stream *stream = client->stream;
+
+sending_data_again:
+ size_t bytes_to_send = stream->bytes_received - client->stream_pos;
+ assert(bytes_to_send <= stream->backlog_size);
if (bytes_to_send == 0) {
return;
}
- if (bytes_to_send > BACKLOG_SIZE) {
- fprintf(stderr, "WARNING: fd %d lost %lld bytes, maybe too slow connection\n",
- client->sock,
- (long long int)(bytes_to_send - BACKLOG_SIZE));
- client->bytes_sent = stream->data_size - BACKLOG_SIZE;
- bytes_to_send = BACKLOG_SIZE;
- }
// See if we need to split across the circular buffer.
- ssize_t ret;
- if ((client->bytes_sent % BACKLOG_SIZE) + bytes_to_send > BACKLOG_SIZE) {
- size_t bytes_first_part = BACKLOG_SIZE - (client->bytes_sent % BACKLOG_SIZE);
-
- iovec iov[2];
- iov[0].iov_base = const_cast<char *>(stream->data + (client->bytes_sent % BACKLOG_SIZE));
- iov[0].iov_len = bytes_first_part;
+ bool more_data = false;
+ if ((client->stream_pos % stream->backlog_size) + bytes_to_send > stream->backlog_size) {
+ bytes_to_send = stream->backlog_size - (client->stream_pos % stream->backlog_size);
+ more_data = true;
+ }
- iov[1].iov_base = const_cast<char *>(stream->data);
- iov[1].iov_len = bytes_to_send - bytes_first_part;
+ ssize_t ret;
+ do {
+ loff_t offset = client->stream_pos % stream->backlog_size;
+ ret = sendfile(client->sock, stream->data_fd, &offset, bytes_to_send);
+ } while (ret == -1 && errno == EINTR);
- do {
- ret = writev(client->sock, iov, 2);
- } while (ret == -1 && errno == EINTR);
- } else {
- do {
- ret = write(client->sock,
- stream->data + (client->bytes_sent % BACKLOG_SIZE),
- bytes_to_send);
- } while (ret == -1 && errno == EINTR);
- }
if (ret == -1 && errno == EAGAIN) {
// We're out of socket space, so return; epoll will wake us up
// when there is more room.
}
if (ret == -1) {
// Error, close; postcondition #1.
- perror("write/writev");
+ log_perror("sendfile");
close_client(client);
return;
}
+ client->stream_pos += ret;
client->bytes_sent += ret;
- if (client->bytes_sent == stream->data_size) {
+ if (client->stream_pos == stream->bytes_received) {
// We don't have any more data for this client, so put it to sleep.
// This is postcondition #3.
- put_client_to_sleep(client);
- } else {
- // XXX: Do we need to go another round here to explicitly
- // get the EAGAIN?
+ stream->put_client_to_sleep(client);
+ } else if (more_data && size_t(ret) == bytes_to_send) {
+ goto sending_data_again;
}
break;
}
}
}
+// See if there's some data we've lost. Ideally, we should drop to a block boundary,
+// but resync will be the mux's problem.
+void Server::skip_lost_data(Client *client)
+{
+ Stream *stream = client->stream;
+ size_t bytes_to_send = stream->bytes_received - client->stream_pos;
+ if (bytes_to_send > stream->backlog_size) {
+ size_t bytes_lost = bytes_to_send - stream->backlog_size;
+ client->stream_pos = stream->bytes_received - stream->backlog_size;
+ client->bytes_lost += bytes_lost;
+ ++client->num_loss_events;
+
+ double loss_fraction = double(client->bytes_lost) / double(client->bytes_lost + client->bytes_sent);
+ log(WARNING, "[%s] Client lost %lld bytes (total loss: %.2f%%), maybe too slow connection",
+ client->remote_addr.c_str(),
+ (long long int)(bytes_lost),
+ 100.0 * loss_fraction);
+ }
+}
+
int Server::parse_request(Client *client)
{
vector<string> lines = split_lines(client->request);
if (request_tokens[0] != "GET") {
return 400; // Should maybe be 405 instead?
}
- if (streams.count(request_tokens[1]) == 0) {
+
+ string url = request_tokens[1];
+ if (url.find("?backlog") == url.size() - 8) {
+ client->stream_pos = -2;
+ url = url.substr(0, url.size() - 8);
+ } else {
+ client->stream_pos = -1;
+ }
+
+ map<string, int>::const_iterator url_map_it = url_map.find(url);
+ if (url_map_it == url_map.end()) {
return 404; // Not found.
}
- client->stream_id = request_tokens[1];
- client->stream = find_stream(client->stream_id);
+ client->url = request_tokens[1];
+ client->stream = streams[url_map_it->second];
+ if (client->stream->mark_pool != NULL) {
+ client->fwmark = client->stream->mark_pool->get_mark();
+ } else {
+ client->fwmark = 0; // No mark.
+ }
+ if (setsockopt(client->sock, SOL_SOCKET, SO_MARK, &client->fwmark, sizeof(client->fwmark)) == -1) {
+ if (client->fwmark != 0) {
+ log_perror("setsockopt(SO_MARK)");
+ }
+ }
client->request.clear();
return 200; // OK!
void Server::construct_header(Client *client)
{
- client->header_or_error = "HTTP/1.0 200 OK\r\nContent-type: video/x-flv\r\nCache-Control: no-cache\r\n\r\n" +
- find_stream(client->stream_id)->header;
+ Stream *stream = client->stream;
+ if (stream->encoding == Stream::STREAM_ENCODING_RAW) {
+ client->header_or_error = stream->http_header +
+ "\r\n" +
+ stream->stream_header;
+ } else if (stream->encoding == Stream::STREAM_ENCODING_METACUBE) {
+ client->header_or_error = stream->http_header +
+ "Content-encoding: metacube\r\n" +
+ "\r\n";
+ if (!stream->stream_header.empty()) {
+ metacube_block_header hdr;
+ memcpy(hdr.sync, METACUBE_SYNC, sizeof(hdr.sync));
+ hdr.size = htonl(stream->stream_header.size());
+ hdr.flags = htonl(METACUBE_FLAGS_HEADER);
+ client->header_or_error.append(
+ string(reinterpret_cast<char *>(&hdr), sizeof(hdr)));
+ }
+ client->header_or_error.append(stream->stream_header);
+ } else {
+ assert(false);
+ }
// Switch states.
client->state = Client::SENDING_HEADER;
epoll_event ev;
ev.events = EPOLLOUT | EPOLLET | EPOLLRDHUP;
- ev.data.u64 = 0; // Keep Valgrind happy.
- ev.data.fd = client->sock;
+ ev.data.u64 = reinterpret_cast<uint64_t>(client);
if (epoll_ctl(epoll_fd, EPOLL_CTL_MOD, client->sock, &ev) == -1) {
- perror("epoll_ctl(EPOLL_CTL_MOD)");
+ log_perror("epoll_ctl(EPOLL_CTL_MOD)");
exit(1);
}
}
epoll_event ev;
ev.events = EPOLLOUT | EPOLLET | EPOLLRDHUP;
- ev.data.u64 = 0; // Keep Valgrind happy.
- ev.data.fd = client->sock;
+ ev.data.u64 = reinterpret_cast<uint64_t>(client);
if (epoll_ctl(epoll_fd, EPOLL_CTL_MOD, client->sock, &ev) == -1) {
- perror("epoll_ctl(EPOLL_CTL_MOD)");
+ log_perror("epoll_ctl(EPOLL_CTL_MOD)");
exit(1);
}
}
+
+template<class T>
+void delete_from(vector<T> *v, T elem)
+{
+ typename vector<T>::iterator new_end = remove(v->begin(), v->end(), elem);
+ v->erase(new_end, v->end());
+}
void Server::close_client(Client *client)
{
if (epoll_ctl(epoll_fd, EPOLL_CTL_DEL, client->sock, NULL) == -1) {
- perror("epoll_ctl(EPOLL_CTL_DEL)");
+ log_perror("epoll_ctl(EPOLL_CTL_DEL)");
exit(1);
}
// This client could be sleeping, so we'll need to fix that. (Argh, O(n).)
- vector<Client *>::iterator new_end =
- remove(sleeping_clients.begin(), sleeping_clients.end(), client);
- sleeping_clients.erase(new_end, sleeping_clients.end());
-
- // Bye-bye!
- int ret;
- do {
- ret = close(client->sock);
- } while (ret == -1 && errno == EINTR);
-
- if (ret == -1) {
- perror("close");
+ if (client->stream != NULL) {
+ delete_from(&client->stream->sleeping_clients, client);
+ delete_from(&client->stream->to_process, client);
+ if (client->stream->mark_pool != NULL) {
+ int fwmark = client->fwmark;
+ client->stream->mark_pool->release_mark(fwmark);
+ }
}
+ // Log to access_log.
+ access_log->write(client->get_stats());
+
+ // Bye-bye!
+ safe_close(client->sock);
+
clients.erase(client->sock);
}
-void Server::put_client_to_sleep(Client *client)
+void Server::process_queued_data()
{
- sleeping_clients.push_back(client);
-}
+ MutexLock lock(&queued_data_mutex);
-void Server::wake_up_all_clients()
-{
- if (to_process.empty()) {
- swap(sleeping_clients, to_process);
- } else {
- to_process.insert(to_process.end(), sleeping_clients.begin(), sleeping_clients.end());
- sleeping_clients.clear();
+ for (size_t i = 0; i < queued_add_clients.size(); ++i) {
+ add_client(queued_add_clients[i]);
+ }
+ queued_add_clients.clear();
+
+ for (size_t i = 0; i < streams.size(); ++i) {
+ streams[i]->process_queued_data();
}
-}
-
-Stream *Server::find_stream(const string &stream_id)
-{
- map<string, Stream *>::iterator it = streams.find(stream_id);
- assert(it != streams.end());
- return it->second;
}
projects / cubemap / blobdiff