git.sesse.net Git - cubemap/blob - client.cpp

   1 #include <arpa/inet.h>
   2 #include <netinet/in.h>
   3 #include <stdint.h>
   4 #include <sys/socket.h>
   5
   6 #include "client.h"
   7 #include "log.h"
   8 #include "state.pb.h"
   9 #include "stream.h"
  10
  11 #ifndef SO_MAX_PACING_RATE
  12 #define SO_MAX_PACING_RATE 47
  13 #endif
  14
  15 using namespace std;
  16
  17 Client::Client(int sock)
  18         : sock(sock),
  19           state(Client::READING_REQUEST),
  20           stream(NULL),
  21           header_or_error_bytes_sent(0),
  22           stream_pos(0),
  23           bytes_sent(0),
  24           bytes_lost(0),
  25           num_loss_events(0)
  26 {
  27         request.reserve(1024);
  28
  29         if (clock_gettime(CLOCK_MONOTONIC_COARSE, &connect_time) == -1) {
  30                 log_perror("clock_gettime(CLOCK_MONOTONIC_COARSE)");
  31                 return;
  32         }
  33
  34         // Find the remote address, and convert it to ASCII.
  35         sockaddr_in6 addr;
  36         socklen_t addr_len = sizeof(addr);
  37
  38         if (getpeername(sock, reinterpret_cast<sockaddr *>(&addr), &addr_len) == -1) {
  39                 log_perror("getpeername");
  40                 remote_addr = "";
  41                 return;
  42         }
  43
  44         char buf[INET6_ADDRSTRLEN];
  45         if (IN6_IS_ADDR_V4MAPPED(&addr.sin6_addr)) {
  46                 // IPv4 address, really.
  47                 if (inet_ntop(AF_INET, &addr.sin6_addr.s6_addr32[3], buf, sizeof(buf)) == NULL) {
  48                         log_perror("inet_ntop");
  49                         remote_addr = "";
  50                 } else {
  51                         remote_addr = buf;
  52                 }
  53         } else {
  54                 if (inet_ntop(addr.sin6_family, &addr.sin6_addr, buf, sizeof(buf)) == NULL) {
  55                         log_perror("inet_ntop");
  56                         remote_addr = "";
  57                 } else {
  58                         remote_addr = buf;
  59                 }
  60         }
  61 }
  62
  63 Client::Client(const ClientProto &serialized, Stream *stream)
  64         : sock(serialized.sock()),
  65           remote_addr(serialized.remote_addr()),
  66           state(State(serialized.state())),
  67           request(serialized.request()),
  68           url(serialized.url()),
  69           stream(stream),
  70           header_or_error(serialized.header_or_error()),
  71           header_or_error_bytes_sent(serialized.header_or_error_bytes_sent()),
  72           stream_pos(serialized.stream_pos()),
  73           bytes_sent(serialized.bytes_sent()),
  74           bytes_lost(serialized.bytes_lost()),
  75           num_loss_events(serialized.num_loss_events())
  76 {
  77         if (stream != NULL) {
  78                 if (setsockopt(sock, SOL_SOCKET, SO_MAX_PACING_RATE, &stream->pacing_rate, sizeof(stream->pacing_rate)) == -1) {
  79                         if (stream->pacing_rate != ~0U) {
  80                                 log_perror("setsockopt(SO_MAX_PACING_RATE)");
  81                         }
  82                 }
  83         }
  84         if (serialized.has_connect_time_old()) {
  85                 // Do a rough conversion from time() to monotonic time.
  86                 if (clock_gettime(CLOCK_MONOTONIC_COARSE, &connect_time) == -1) {
  87                         log_perror("clock_gettime(CLOCK_MONOTONIC_COARSE)");
  88                         return;
  89                 }
  90                 connect_time.tv_sec += serialized.connect_time_old() - time(NULL);
  91         } else {
  92                 connect_time.tv_sec = serialized.connect_time_sec();
  93                 connect_time.tv_nsec = serialized.connect_time_nsec();
  94         }
  95 }
  96
  97 ClientProto Client::serialize() const
  98 {
  99         ClientProto serialized;
 100         serialized.set_sock(sock);
 101         serialized.set_remote_addr(remote_addr);
 102         serialized.set_connect_time_sec(connect_time.tv_sec);
 103         serialized.set_connect_time_nsec(connect_time.tv_nsec);
 104         serialized.set_state(state);
 105         serialized.set_request(request);
 106         serialized.set_url(url);
 107         serialized.set_header_or_error(header_or_error);
 108         serialized.set_header_or_error_bytes_sent(serialized.header_or_error_bytes_sent());
 109         serialized.set_stream_pos(stream_pos);
 110         serialized.set_bytes_sent(bytes_sent);
 111         serialized.set_bytes_lost(bytes_lost);
 112         serialized.set_num_loss_events(num_loss_events);
 113         return serialized;
 114 }
 115
 116 ClientStats Client::get_stats() const
 117 {
 118         ClientStats stats;
 119         if (url.empty()) {
 120                 stats.url = "-";
 121         } else {
 122                 stats.url = url;
 123         }
 124         stats.sock = sock;
 125         stats.remote_addr = remote_addr;
 126         stats.connect_time = connect_time;
 127         stats.bytes_sent = bytes_sent;
 128         stats.bytes_lost = bytes_lost;
 129         stats.num_loss_events = num_loss_events;
 130         return stats;
 131 }