X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=httpinput.cpp;h=9cacc1f0041e8ebccbaccf6c101c35d82a7c899a;hp=2ad9746e7bf2f7cd4c84f8629c26092f22668561;hb=d5f3f941faaf113936113fc2105bf59913e9125e;hpb=b05c2965d3d5bfc4f24f17a27716a69ddf03a3cc diff --git a/httpinput.cpp b/httpinput.cpp index 2ad9746..9cacc1f 100644 --- a/httpinput.cpp +++ b/httpinput.cpp @@ -1,5 +1,6 @@ #include #include +#include #include #include #include @@ -20,7 +21,6 @@ #include "httpinput.h" #include "log.h" #include "metacube2.h" -#include "mutexlock.h" #include "parse.h" #include "serverpool.h" #include "state.pb.h" @@ -49,22 +49,14 @@ extern ServerPool *servers; HTTPInput::HTTPInput(const string &url, Input::Encoding encoding) : state(NOT_CONNECTED), url(url), - encoding(encoding), - has_metacube_header(false), - sock(-1), - num_connection_attempts(0), - suppress_logging(false) + encoding(encoding) { - pthread_mutex_init(&stats_mutex, NULL); stats.url = url; stats.bytes_received = 0; stats.data_bytes_received = 0; stats.metadata_bytes_received = 0; stats.connect_time = -1; stats.latency_sec = HUGE_VAL; - - last_verbose_connection.tv_sec = -3600; - last_verbose_connection.tv_nsec = 0; } HTTPInput::HTTPInput(const InputProto &serialized) @@ -79,9 +71,7 @@ HTTPInput::HTTPInput(const InputProto &serialized) http_header(serialized.http_header()), stream_header(serialized.stream_header()), has_metacube_header(serialized.has_metacube_header()), - sock(serialized.sock()), - num_connection_attempts(0), - suppress_logging(false) + sock(serialized.sock()) { pending_data.resize(serialized.pending_data().size()); memcpy(&pending_data[0], serialized.pending_data().data(), serialized.pending_data().size()); @@ -89,7 +79,6 @@ HTTPInput::HTTPInput(const InputProto &serialized) string protocol, user; parse_url(url, &protocol, &user, &host, &port, &path); // Don't care if it fails. - pthread_mutex_init(&stats_mutex, NULL); stats.url = url; stats.bytes_received = serialized.bytes_received(); stats.data_bytes_received = serialized.data_bytes_received(); @@ -97,7 +86,7 @@ HTTPInput::HTTPInput(const InputProto &serialized) if (serialized.has_connect_time()) { stats.connect_time = serialized.connect_time(); } else { - stats.connect_time = time(NULL); + stats.connect_time = time(nullptr); } if (serialized.has_latency_sec()) { stats.latency_sec = serialized.latency_sec(); @@ -116,7 +105,7 @@ void HTTPInput::close_socket() sock = -1; } - MutexLock lock(&stats_mutex); + lock_guard lock(stats_mutex); stats.connect_time = -1; } @@ -151,7 +140,7 @@ InputProto HTTPInput::serialize() const int HTTPInput::lookup_and_connect(const string &host, const string &port) { addrinfo *ai; - int err = getaddrinfo(host.c_str(), port.c_str(), NULL, &ai); + int err = getaddrinfo(host.c_str(), port.c_str(), nullptr, &ai); if (err != 0) { if (!suppress_logging) { log(WARNING, "[%s] Lookup of '%s' failed (%s).", @@ -164,23 +153,14 @@ int HTTPInput::lookup_and_connect(const string &host, const string &port) // Connect to everything in turn until we have a socket. for ( ; ai && !should_stop(); ai = ai->ai_next) { - int sock = socket(ai->ai_family, SOCK_STREAM, IPPROTO_TCP); + // Now do a non-blocking connect. This is important because we want to be able to be + // woken up, even though it's rather cumbersome. + int sock = socket(ai->ai_family, SOCK_STREAM | SOCK_NONBLOCK, IPPROTO_TCP); if (sock == -1) { // Could be e.g. EPROTONOSUPPORT. The show must go on. continue; } - // Now do a non-blocking connect. This is important because we want to be able to be - // woken up, even though it's rather cumbersome. - - // Set the socket as nonblocking. - int one = 1; - if (ioctl(sock, FIONBIO, &one) == -1) { - log_perror("ioctl(FIONBIO)"); - safe_close(sock); - return -1; - } - // Do a non-blocking connect. do { err = connect(sock, ai->ai_addr, ai->ai_addrlen); @@ -194,7 +174,7 @@ int HTTPInput::lookup_and_connect(const string &host, const string &port) // Wait for the connect to complete, or an error to happen. for ( ;; ) { - bool complete = wait_for_activity(sock, POLLIN | POLLOUT, NULL); + bool complete = wait_for_activity(sock, POLLIN | POLLOUT, nullptr); if (should_stop()) { safe_close(sock); return -1; @@ -260,47 +240,38 @@ bool HTTPInput::parse_response(const string &request) return false; } - multimap parameters = extract_headers(lines, url); + HTTPHeaderMultimap parameters = extract_headers(lines, url); // Remove “Content-encoding: metacube”. - // TODO: Make case-insensitive. - multimap::iterator encoding_it = - parameters.find("Content-encoding"); + const auto encoding_it = parameters.find("Content-Encoding"); if (encoding_it != parameters.end() && encoding_it->second == "metacube") { parameters.erase(encoding_it); } // Change “Server: foo” to “Server: metacube/0.1 (reflecting: foo)” - // TODO: Make case-insensitive. // XXX: Use a Via: instead? if (parameters.count("Server") == 0) { parameters.insert(make_pair("Server", SERVER_IDENTIFICATION)); } else { - for (multimap::iterator it = parameters.begin(); - it != parameters.end(); - ++it) { - if (it->first != "Server") { + for (auto &key_and_value : parameters) { + if (key_and_value.first != "Server") { continue; } - it->second = SERVER_IDENTIFICATION " (reflecting: " + it->second + ")"; + key_and_value.second = SERVER_IDENTIFICATION " (reflecting: " + key_and_value.second + ")"; } } - // Set “Connection: close”. - // TODO: Make case-insensitive. + // Erase “Connection: close”; we'll set it on the sending side if needed. parameters.erase("Connection"); - parameters.insert(make_pair("Connection", "close")); // Construct the new HTTP header. http_header = "HTTP/1.0 200 OK\r\n"; - for (multimap::iterator it = parameters.begin(); - it != parameters.end(); - ++it) { - http_header.append(it->first + ": " + it->second + "\r\n"); + for (const auto &key_and_value : parameters) { + http_header.append(key_and_value.first + ": " + key_and_value.second + "\r\n"); } - for (size_t i = 0; i < stream_indices.size(); ++i) { - servers->set_header(stream_indices[i], http_header, stream_header); + for (int stream_index : stream_indices) { + servers->set_header(stream_index, http_header, stream_header); } return true; @@ -358,8 +329,9 @@ void HTTPInput::do_work() response.clear(); pending_data.clear(); has_metacube_header = false; - for (size_t i = 0; i < stream_indices.size(); ++i) { - servers->set_header(stream_indices[i], "", ""); + for (int stream_index : stream_indices) { + // Don't zero out the header; it might still be of use to HLS clients. + servers->set_unavailable(stream_index); } { @@ -399,19 +371,13 @@ void HTTPInput::do_work() ++num_connection_attempts; sock = lookup_and_connect(host, port); if (sock != -1) { - // Yay, successful connect. Try to set it as nonblocking. - int one = 1; - if (ioctl(sock, FIONBIO, &one) == -1) { - log_perror("ioctl(FIONBIO)"); - state = CLOSING_SOCKET; - } else { - state = SENDING_REQUEST; - request = "GET " + path + " HTTP/1.0\r\nHost: " + host_header(host, port) + "\r\nUser-Agent: cubemap\r\n\r\n"; - request_bytes_sent = 0; - } + // Yay, successful connect. + state = SENDING_REQUEST; + request = "GET " + path + " HTTP/1.0\r\nHost: " + host_header(host, port) + "\r\nUser-Agent: cubemap\r\n\r\n"; + request_bytes_sent = 0; - MutexLock lock(&stats_mutex); - stats.connect_time = time(NULL); + lock_guard lock(stats_mutex); + stats.connect_time = time(nullptr); clock_gettime(CLOCK_MONOTONIC_COARSE, &last_activity); } break; @@ -479,7 +445,7 @@ void HTTPInput::do_work() if (status == RP_EXTRA_DATA) { char *ptr = static_cast( memmem(response.data(), response.size(), "\r\n\r\n", 4)); - assert(ptr != NULL); + assert(ptr != nullptr); extra_data = string(ptr + 4, &response[0] + response.size()); response.resize(ptr - response.data()); } @@ -580,13 +546,13 @@ void HTTPInput::do_work() void HTTPInput::process_data(char *ptr, size_t bytes) { { - MutexLock mutex(&stats_mutex); + lock_guard lock(stats_mutex); stats.bytes_received += bytes; } if (encoding == Input::INPUT_ENCODING_RAW) { - for (size_t i = 0; i < stream_indices.size(); ++i) { - servers->add_data(stream_indices[i], ptr, bytes, /*metacube_flags=*/0); + for (int stream_index : stream_indices) { + servers->add_data(stream_index, ptr, bytes, /*metacube_flags=*/0, /*pts=*/RationalPTS()); } return; } @@ -606,7 +572,7 @@ void HTTPInput::process_data(char *ptr, size_t bytes) char *ptr = static_cast( memmem(pending_data.data(), pending_data.size(), METACUBE2_SYNC, strlen(METACUBE2_SYNC))); - if (ptr == NULL) { + if (ptr == nullptr) { // OK, so we didn't find the sync marker. We know then that // we do not have the _full_ marker in the buffer, but we // could have N-1 bytes. Drop everything before that, @@ -659,26 +625,27 @@ void HTTPInput::process_data(char *ptr, size_t bytes) // TODO: Keep metadata when sending on to other Metacube users. if (flags & METACUBE_FLAGS_METADATA) { { - MutexLock lock(&stats_mutex); + lock_guard lock(stats_mutex); stats.metadata_bytes_received += size; } process_metacube_metadata_block(hdr, pending_data.data() + sizeof(hdr), size); } else { // Send this block on to the servers. { - MutexLock lock(&stats_mutex); + lock_guard lock(stats_mutex); stats.data_bytes_received += size; } char *inner_data = pending_data.data() + sizeof(metacube2_block_header); if (flags & METACUBE_FLAGS_HEADER) { stream_header = string(inner_data, inner_data + size); - for (size_t i = 0; i < stream_indices.size(); ++i) { - servers->set_header(stream_indices[i], http_header, stream_header); + for (int stream_index : stream_indices) { + servers->set_header(stream_index, http_header, stream_header); } } - for (size_t i = 0; i < stream_indices.size(); ++i) { - servers->add_data(stream_indices[i], inner_data, size, flags); + for (int stream_index : stream_indices) { + servers->add_data(stream_index, inner_data, size, flags, next_block_pts); } + next_block_pts = RationalPTS(); } // Consume the block. This isn't the most efficient way of dealing with things @@ -708,7 +675,7 @@ void HTTPInput::add_destination(int stream_index) InputStats HTTPInput::get_stats() const { - MutexLock lock(&stats_mutex); + lock_guard lock(stats_mutex); return stats; } @@ -721,25 +688,36 @@ void HTTPInput::process_metacube_metadata_block(const metacube2_block_header &hd } uint64_t type = be64toh(*(const uint64_t *)payload); - if (type != METACUBE_METADATA_TYPE_ENCODER_TIMESTAMP) { - // Unknown metadata block, ignore. - return; - } - - timespec now; - clock_gettime(CLOCK_REALTIME, &now); + if (type == METACUBE_METADATA_TYPE_ENCODER_TIMESTAMP) { + timespec now; + clock_gettime(CLOCK_REALTIME, &now); + + const metacube2_timestamp_packet *pkt = (const metacube2_timestamp_packet *)payload; + if (payload_size != sizeof(*pkt)) { + log(WARNING, "[%s] Metacube timestamp block of wrong size (%d bytes); ignoring.", + url.c_str(), payload_size); + return; + } - const metacube2_timestamp_packet *pkt = (const metacube2_timestamp_packet *)payload; - if (payload_size != sizeof(*pkt)) { - log(WARNING, "[%s] Metacube timestamp block of wrong size (%d bytes); ignoring.", - url.c_str(), payload_size); + double elapsed = now.tv_sec - be64toh(pkt->tv_sec) + + 1e-9 * (now.tv_nsec - long(be64toh(pkt->tv_nsec))); + { + lock_guard lock(stats_mutex); + stats.latency_sec = elapsed; + } + } else if (type == METACUBE_METADATA_TYPE_NEXT_BLOCK_PTS) { + const metacube2_pts_packet *pkt = (const metacube2_pts_packet *)payload; + if (payload_size != sizeof(*pkt)) { + log(WARNING, "[%s] Metacube pts block of wrong size (%d bytes); ignoring.", + url.c_str(), payload_size); + return; + } + next_block_pts.pts = be64toh(pkt->pts); + next_block_pts.timebase_num = be64toh(pkt->timebase_num); + next_block_pts.timebase_den = be64toh(pkt->timebase_den); + } else { + // Unknown metadata block, ignore + log(INFO, "[%s] Metadata block %llu\n", url.c_str(), type); return; } - - double elapsed = now.tv_sec - be64toh(pkt->tv_sec) + - 1e-9 * (now.tv_nsec - long(be64toh(pkt->tv_nsec))); - { - MutexLock lock(&stats_mutex); - stats.latency_sec = elapsed; - } }