-#include <stdio.h>
-#include <string.h>
-#include <stdint.h>
-#include <unistd.h>
#include <assert.h>
-#include <arpa/inet.h>
-#include <sys/socket.h>
+#include <errno.h>
#include <pthread.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <sys/epoll.h>
#include <sys/sendfile.h>
+#include <sys/socket.h>
+#include <sys/types.h>
#include <time.h>
-#include <signal.h>
-#include <errno.h>
-#include <vector>
-#include <string>
-#include <map>
+#include <unistd.h>
#include <algorithm>
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
#include "markpool.h"
-#include "metacube.h"
-#include "server.h"
#include "mutexlock.h"
#include "parse.h"
-#include "util.h"
+#include "server.h"
#include "state.pb.h"
+#include "stream.h"
using namespace std;
-Client::Client(int sock)
- : sock(sock),
- fwmark(0),
- connect_time(time(NULL)),
- state(Client::READING_REQUEST),
- stream(NULL),
- header_or_error_bytes_sent(0),
- bytes_sent(0)
-{
- request.reserve(1024);
-
- // Find the remote address, and convert it to ASCII.
- sockaddr_in6 addr;
- socklen_t addr_len = sizeof(addr);
-
- if (getpeername(sock, reinterpret_cast<sockaddr *>(&addr), &addr_len) == -1) {
- perror("getpeername");
- remote_addr = "";
- } else {
- char buf[INET6_ADDRSTRLEN];
- if (inet_ntop(addr.sin6_family, &addr.sin6_addr, buf, sizeof(buf)) == NULL) {
- perror("inet_ntop");
- remote_addr = "";
- } else {
- remote_addr = buf;
- }
- }
-}
-
-Client::Client(const ClientProto &serialized, Stream *stream)
- : sock(serialized.sock()),
- remote_addr(serialized.remote_addr()),
- connect_time(serialized.connect_time()),
- 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())
-{
- if (stream->mark_pool != NULL) {
- fwmark = stream->mark_pool->get_mark();
- } else {
- fwmark = 0; // No mark.
- }
- if (setsockopt(sock, SOL_SOCKET, SO_MARK, &fwmark, sizeof(fwmark)) == -1) {
- if (fwmark != 0) {
- perror("setsockopt(SO_MARK)");
- }
- }
-}
-
-ClientProto Client::serialize() const
-{
- ClientProto serialized;
- serialized.set_sock(sock);
- serialized.set_remote_addr(remote_addr);
- serialized.set_connect_time(connect_time);
- 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;
-}
-
-ClientStats Client::get_stats() const
-{
- ClientStats stats;
- stats.stream_id = stream_id;
- stats.remote_addr = remote_addr;
- stats.connect_time = connect_time;
- stats.bytes_sent = bytes_sent;
- return stats;
-}
-
-Stream::Stream(const string &stream_id, size_t backlog_size)
- : stream_id(stream_id),
- data_fd(make_tempfile("")),
- backlog_size(backlog_size),
- bytes_received(0),
- mark_pool(NULL)
-{
- if (data_fd == -1) {
- exit(1);
- }
-}
-
-Stream::~Stream()
-{
- if (data_fd != -1) {
- int ret;
- do {
- ret = close(data_fd);
- } while (ret == -1 && errno == EINTR);
- if (ret == -1) {
- perror("close");
- }
- }
-}
-
-Stream::Stream(const StreamProto &serialized)
- : stream_id(serialized.stream_id()),
- header(serialized.header()),
- data_fd(make_tempfile(serialized.data())),
- backlog_size(serialized.backlog_size()),
- bytes_received(serialized.bytes_received()),
- mark_pool(NULL)
-{
- if (data_fd == -1) {
- exit(1);
- }
-}
-
-StreamProto Stream::serialize()
-{
- StreamProto serialized;
- serialized.set_header(header);
- if (!read_tempfile(data_fd, serialized.mutable_data())) { // Closes data_fd.
- exit(1);
- }
- serialized.set_backlog_size(backlog_size);
- serialized.set_bytes_received(bytes_received);
- serialized.set_stream_id(stream_id);
- data_fd = -1;
- return serialized;
-}
-
-void Stream::put_client_to_sleep(Client *client)
-{
- sleeping_clients.push_back(client);
-}
-
-void Stream::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();
- }
-}
-
Server::Server()
{
pthread_mutex_init(&mutex, NULL);
queued_data[stream_id].append(string(data, data + bytes));
}
-void Server::add_data(const string &stream_id, const char *data, ssize_t bytes)
-{
- Stream *stream = find_stream(stream_id);
- size_t pos = stream->bytes_received % stream->backlog_size;
- stream->bytes_received += bytes;
-
- if (pos + bytes > stream->backlog_size) {
- ssize_t to_copy = stream->backlog_size - pos;
- while (to_copy > 0) {
- int ret = pwrite(stream->data_fd, data, to_copy, pos);
- if (ret == -1 && errno == EINTR) {
- continue;
- }
- if (ret == -1) {
- perror("pwrite");
- // Dazed and confused, but trying to continue...
- break;
- }
- pos += ret;
- data += ret;
- to_copy -= ret;
- bytes -= ret;
- }
- pos = 0;
- }
-
- while (bytes > 0) {
- int ret = pwrite(stream->data_fd, data, bytes, pos);
- if (ret == -1 && errno == EINTR) {
- continue;
- }
- if (ret == -1) {
- perror("pwrite");
- // Dazed and confused, but trying to continue...
- break;
- }
- pos += ret;
- data += ret;
- bytes -= ret;
- }
-
- stream->wake_up_all_clients();
-}
-
// See the .h file for postconditions after this function.
void Server::process_client(Client *client)
{
for (map<string, string>::iterator queued_it = queued_data.begin();
queued_it != queued_data.end();
++queued_it) {
- add_data(queued_it->first, queued_it->second.data(), queued_it->second.size());
+ Stream *stream = find_stream(queued_it->first);
+ stream->add_data(queued_it->second.data(), queued_it->second.size());
}
queued_data.clear();
}
projects / cubemap / blobdiff