mirror of
https://github.com/esphome/esphome.git
synced 2024-11-21 22:48:10 +01:00
Add readv and writev for more efficient API packets (#2342)
This commit is contained in:
Otto Winter
GitHub
parent
c60c618204
commit
a990898256
7 changed files with 220 additions and 84 deletions
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@ -702,15 +702,7 @@ bool APIConnection::send_log_message(int level, const char *tag, const char *lin
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// string message = 3;
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buffer.encode_string(3, line, strlen(line));
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// SubscribeLogsResponse - 29
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bool success = this->send_buffer(buffer, 29);
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if (!success) {
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buffer = this->create_buffer();
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// bool send_failed = 4;
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buffer.encode_bool(4, true);
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return this->send_buffer(buffer, 29);
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} else {
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return true;
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}
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return this->send_buffer(buffer, 29);
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}
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HelloResponse APIConnection::hello(const HelloRequest &msg) {
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@ -783,8 +775,23 @@ void APIConnection::subscribe_home_assistant_states(const SubscribeHomeAssistant
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bool APIConnection::send_buffer(ProtoWriteBuffer buffer, uint32_t message_type) {
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if (this->remove_)
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return false;
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if (!this->helper_->can_write_without_blocking())
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return false;
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if (!this->helper_->can_write_without_blocking()) {
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delay(0);
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APIError err = helper_->loop();
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if (err != APIError::OK) {
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on_fatal_error();
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ESP_LOGW(TAG, "%s: Socket operation failed: %s errno=%d", client_info_.c_str(), api_error_to_str(err), errno);
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return false;
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}
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if (!this->helper_->can_write_without_blocking()) {
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// SubscribeLogsResponse
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if (message_type != 29) {
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ESP_LOGV(TAG, "Cannot send message because of TCP buffer space");
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}
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delay(0);
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return false;
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}
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}
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APIError err = this->helper_->write_packet(message_type, buffer.get_buffer()->data(), buffer.get_buffer()->size());
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if (err == APIError::WOULD_BLOCK)
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@ -125,13 +125,6 @@ APIError APINoiseFrameHelper::init() {
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HELPER_LOG("Setting nonblocking failed with errno %d", errno);
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return APIError::TCP_NONBLOCKING_FAILED;
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}
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int enable = 1;
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err = socket_->setsockopt(IPPROTO_TCP, TCP_NODELAY, &enable, sizeof(int));
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if (err != 0) {
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state_ = State::FAILED;
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HELPER_LOG("Setting nodelay failed with errno %d", errno);
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return APIError::TCP_NODELAY_FAILED;
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}
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// init prologue
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prologue_.insert(prologue_.end(), PROLOGUE_INIT, PROLOGUE_INIT + strlen(PROLOGUE_INIT));
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@ -494,12 +487,13 @@ APIError APINoiseFrameHelper::write_packet(uint16_t type, const uint8_t *payload
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size_t total_len = 3 + mbuf.size;
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tmpbuf[1] = (uint8_t)(mbuf.size >> 8);
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tmpbuf[2] = (uint8_t) mbuf.size;
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struct iovec iov;
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iov.iov_base = &tmpbuf[0];
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iov.iov_len = total_len;
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// write raw to not have two packets sent if NAGLE disabled
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aerr = write_raw_(&tmpbuf[0], total_len);
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if (aerr != APIError::OK) {
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return aerr;
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}
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return APIError::OK;
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return write_raw_(&iov, 1);
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}
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APIError APINoiseFrameHelper::try_send_tx_buf_() {
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// try send from tx_buf
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@ -526,16 +520,19 @@ APIError APINoiseFrameHelper::try_send_tx_buf_() {
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* @param data The data to write
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* @param len The length of data
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*/
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APIError APINoiseFrameHelper::write_raw_(const uint8_t *data, size_t len) {
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if (len == 0)
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APIError APINoiseFrameHelper::write_raw_(const struct iovec *iov, int iovcnt) {
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if (iovcnt == 0)
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return APIError::OK;
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int err;
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APIError aerr;
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// uncomment for even more debugging
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size_t total_write_len = 0;
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for (int i = 0; i < iovcnt; i++) {
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#ifdef HELPER_LOG_PACKETS
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ESP_LOGVV(TAG, "Sending raw: %s", hexencode(data, len).c_str());
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ESP_LOGVV(TAG, "Sending raw: %s", hexencode(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len).c_str());
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#endif
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total_write_len += iov[i].iov_len;
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}
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if (!tx_buf_.empty()) {
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// try to empty tx_buf_ first
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@ -546,41 +543,56 @@ APIError APINoiseFrameHelper::write_raw_(const uint8_t *data, size_t len) {
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if (!tx_buf_.empty()) {
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// tx buf not empty, can't write now because then stream would be inconsistent
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tx_buf_.insert(tx_buf_.end(), data, data + len);
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for (int i = 0; i < iovcnt; i++) {
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tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
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reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
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}
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return APIError::OK;
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}
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ssize_t sent = socket_->write(data, len);
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ssize_t sent = socket_->writev(iov, iovcnt);
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if (is_would_block(sent)) {
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// operation would block, add buffer to tx_buf
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tx_buf_.insert(tx_buf_.end(), data, data + len);
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for (int i = 0; i < iovcnt; i++) {
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tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
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reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
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}
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return APIError::OK;
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} else if (sent == -1) {
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// an error occured
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state_ = State::FAILED;
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HELPER_LOG("Socket write failed with errno %d", errno);
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return APIError::SOCKET_WRITE_FAILED;
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} else if (sent != len) {
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} else if (sent != total_write_len) {
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// partially sent, add end to tx_buf
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tx_buf_.insert(tx_buf_.end(), data + sent, data + len);
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size_t to_consume = sent;
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for (int i = 0; i < iovcnt; i++) {
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if (to_consume >= iov[i].iov_len) {
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to_consume -= iov[i].iov_len;
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} else {
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tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base) + to_consume,
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reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
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to_consume = 0;
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}
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}
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return APIError::OK;
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}
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// fully sent
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return APIError::OK;
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}
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APIError APINoiseFrameHelper::write_frame_(const uint8_t *data, size_t len) {
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APIError aerr;
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uint8_t header[3];
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header[0] = 0x01; // indicator
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header[1] = (uint8_t)(len >> 8);
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header[2] = (uint8_t) len;
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aerr = write_raw_(header, 3);
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if (aerr != APIError::OK)
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return aerr;
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aerr = write_raw_(data, len);
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return aerr;
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struct iovec iov[2];
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iov[0].iov_base = header;
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iov[0].iov_len = 3;
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iov[1].iov_base = const_cast<uint8_t *>(data);
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iov[1].iov_len = len;
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return write_raw_(iov, 2);
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}
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/** Initiate the data structures for the handshake.
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@ -709,13 +721,6 @@ APIError APIPlaintextFrameHelper::init() {
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HELPER_LOG("Setting nonblocking failed with errno %d", errno);
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return APIError::TCP_NONBLOCKING_FAILED;
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}
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int enable = 1;
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err = socket_->setsockopt(IPPROTO_TCP, TCP_NODELAY, &enable, sizeof(int));
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if (err != 0) {
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state_ = State::FAILED;
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HELPER_LOG("Setting nodelay failed with errno %d", errno);
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return APIError::TCP_NODELAY_FAILED;
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}
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state_ = State::DATA;
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return APIError::OK;
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@ -863,15 +868,13 @@ APIError APIPlaintextFrameHelper::write_packet(uint16_t type, const uint8_t *pay
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ProtoVarInt(payload_len).encode(header);
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ProtoVarInt(type).encode(header);
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aerr = write_raw_(&header[0], header.size());
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if (aerr != APIError::OK) {
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return aerr;
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}
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aerr = write_raw_(payload, payload_len);
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if (aerr != APIError::OK) {
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return aerr;
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}
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return APIError::OK;
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struct iovec iov[2];
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iov[0].iov_base = &header[0];
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iov[0].iov_len = header.size();
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iov[1].iov_base = const_cast<uint8_t *>(payload);
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iov[1].iov_len = payload_len;
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return write_raw_(iov, 2);
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}
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APIError APIPlaintextFrameHelper::try_send_tx_buf_() {
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// try send from tx_buf
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@ -896,16 +899,19 @@ APIError APIPlaintextFrameHelper::try_send_tx_buf_() {
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* @param data The data to write
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* @param len The length of data
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*/
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APIError APIPlaintextFrameHelper::write_raw_(const uint8_t *data, size_t len) {
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if (len == 0)
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APIError APIPlaintextFrameHelper::write_raw_(const struct iovec *iov, int iovcnt) {
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if (iovcnt == 0)
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return APIError::OK;
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int err;
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APIError aerr;
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// uncomment for even more debugging
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size_t total_write_len = 0;
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for (int i = 0; i < iovcnt; i++) {
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#ifdef HELPER_LOG_PACKETS
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ESP_LOGVV(TAG, "Sending raw: %s", hexencode(data, len).c_str());
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ESP_LOGVV(TAG, "Sending raw: %s", hexencode(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len).c_str());
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#endif
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total_write_len += iov[i].iov_len;
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}
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if (!tx_buf_.empty()) {
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// try to empty tx_buf_ first
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@ -916,23 +922,38 @@ APIError APIPlaintextFrameHelper::write_raw_(const uint8_t *data, size_t len) {
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if (!tx_buf_.empty()) {
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// tx buf not empty, can't write now because then stream would be inconsistent
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tx_buf_.insert(tx_buf_.end(), data, data + len);
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for (int i = 0; i < iovcnt; i++) {
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tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
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reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
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}
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return APIError::OK;
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}
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ssize_t sent = socket_->write(data, len);
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ssize_t sent = socket_->writev(iov, iovcnt);
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if (is_would_block(sent)) {
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// operation would block, add buffer to tx_buf
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tx_buf_.insert(tx_buf_.end(), data, data + len);
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for (int i = 0; i < iovcnt; i++) {
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tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
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reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
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}
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return APIError::OK;
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} else if (sent == -1) {
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// an error occured
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state_ = State::FAILED;
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HELPER_LOG("Socket write failed with errno %d", errno);
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return APIError::SOCKET_WRITE_FAILED;
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} else if (sent != len) {
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} else if (sent != total_write_len) {
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// partially sent, add end to tx_buf
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tx_buf_.insert(tx_buf_.end(), data + sent, data + len);
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size_t to_consume = sent;
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for (int i = 0; i < iovcnt; i++) {
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if (to_consume >= iov[i].iov_len) {
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to_consume -= iov[i].iov_len;
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} else {
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tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base) + to_consume,
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reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
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to_consume = 0;
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}
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}
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return APIError::OK;
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}
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// fully sent
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@ -58,6 +58,7 @@ const char *api_error_to_str(APIError err);
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class APIFrameHelper {
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public:
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virtual ~APIFrameHelper() = default;
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virtual APIError init() = 0;
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virtual APIError loop() = 0;
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virtual APIError read_packet(ReadPacketBuffer *buffer) = 0;
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@ -96,7 +97,7 @@ class APINoiseFrameHelper : public APIFrameHelper {
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APIError try_read_frame_(ParsedFrame *frame);
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APIError try_send_tx_buf_();
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APIError write_frame_(const uint8_t *data, size_t len);
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APIError write_raw_(const uint8_t *data, size_t len);
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APIError write_raw_(const struct iovec *iov, int iovcnt);
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APIError init_handshake_();
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APIError check_handshake_finished_();
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void send_explicit_handshake_reject_(const std::string &reason);
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@ -154,7 +155,7 @@ class APIPlaintextFrameHelper : public APIFrameHelper {
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APIError try_read_frame_(ParsedFrame *frame);
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APIError try_send_tx_buf_();
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APIError write_raw_(const uint8_t *data, size_t len);
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APIError write_raw_(const struct iovec *iov, int iovcnt);
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std::unique_ptr<socket::Socket> socket_;
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@ -6,6 +6,10 @@
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#include <cstring>
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#ifdef ARDUINO_ARCH_ESP32
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#include <esp_idf_version.h>
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#endif
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namespace esphome {
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namespace socket {
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@ -76,7 +80,51 @@ class BSDSocketImpl : public Socket {
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}
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int listen(int backlog) override { return ::listen(fd_, backlog); }
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ssize_t read(void *buf, size_t len) override { return ::read(fd_, buf, len); }
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ssize_t readv(const struct iovec *iov, int iovcnt) override {
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#if defined(ARDUINO_ARCH_ESP32) && ESP_IDF_VERSION_MAJOR < 4
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// esp-idf v3 doesn't have readv, emulate it
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ssize_t ret = 0;
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for (int i = 0; i < iovcnt; i++) {
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ssize_t err = this->read(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len);
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if (err == -1) {
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if (ret != 0)
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// if we already read some don't return an error
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break;
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return err;
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}
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ret += err;
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if (err != iov[i].iov_len)
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break;
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}
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return ret;
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#else
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return ::readv(fd_, iov, iovcnt);
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#endif
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}
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ssize_t write(const void *buf, size_t len) override { return ::write(fd_, buf, len); }
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ssize_t send(void *buf, size_t len, int flags) { return ::send(fd_, buf, len, flags); }
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ssize_t writev(const struct iovec *iov, int iovcnt) override {
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#if defined(ARDUINO_ARCH_ESP32) && ESP_IDF_VERSION_MAJOR < 4
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// esp-idf v3 doesn't have writev, emulate it
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ssize_t ret = 0;
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for (int i = 0; i < iovcnt; i++) {
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ssize_t err =
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this->send(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len, i == iovcnt - 1 ? 0 : MSG_MORE);
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if (err == -1) {
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if (ret != 0)
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// if we already wrote some don't return an error
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break;
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return err;
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}
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ret += err;
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if (err != iov[i].iov_len)
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break;
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}
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return ret;
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#else
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return ::writev(fd_, iov, iovcnt);
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#endif
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}
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int setblocking(bool blocking) override {
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int fl = ::fcntl(fd_, F_GETFL, 0);
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if (blocking) {
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@ -81,6 +81,11 @@ struct sockaddr_storage {
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};
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typedef uint32_t socklen_t;
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struct iovec {
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void *iov_base;
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size_t iov_len;
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};
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#ifdef ARDUINO_ARCH_ESP8266
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// arduino-esp8266 declares a global vars called INADDR_NONE/ANY which are invalid with the define
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#ifdef INADDR_ANY
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@ -104,6 +109,7 @@ typedef uint32_t socklen_t;
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdint.h>
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@ -371,7 +371,23 @@ class LWIPRawImpl : public Socket {
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return read;
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}
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ssize_t write(const void *buf, size_t len) override {
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ssize_t readv(const struct iovec *iov, int iovcnt) override {
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ssize_t ret = 0;
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for (int i = 0; i < iovcnt; i++) {
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ssize_t err = read(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len);
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if (err == -1) {
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if (ret != 0)
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// if we already read some don't return an error
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break;
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return err;
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||||
}
|
||||
ret += err;
|
||||
if (err != iov[i].iov_len)
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
ssize_t internal_write(const void *buf, size_t len) {
|
||||
if (pcb_ == nullptr) {
|
||||
errno = ECONNRESET;
|
||||
return -1;
|
||||
|
|
@ -400,25 +416,60 @@ class LWIPRawImpl : public Socket {
|
|||
errno = ECONNRESET;
|
||||
return -1;
|
||||
}
|
||||
if (tcp_nagle_disabled(pcb_)) {
|
||||
LWIP_LOG("tcp_output(%p)", pcb_);
|
||||
err = tcp_output(pcb_);
|
||||
if (err == ERR_ABRT) {
|
||||
LWIP_LOG(" -> err ERR_ABRT");
|
||||
// sometimes lwip returns ERR_ABRT for no apparent reason
|
||||
// the connection works fine afterwards, and back with ESPAsyncTCP we
|
||||
// indirectly also ignored this error
|
||||
// FIXME: figure out where this is returned and what it means in this context
|
||||
return to_send;
|
||||
}
|
||||
if (err != ERR_OK) {
|
||||
LWIP_LOG(" -> err %d", err);
|
||||
errno = ECONNRESET;
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
return to_send;
|
||||
}
|
||||
int internal_output() {
|
||||
LWIP_LOG("tcp_output(%p)", pcb_);
|
||||
err_t err = tcp_output(pcb_);
|
||||
if (err == ERR_ABRT) {
|
||||
LWIP_LOG(" -> err ERR_ABRT");
|
||||
// sometimes lwip returns ERR_ABRT for no apparent reason
|
||||
// the connection works fine afterwards, and back with ESPAsyncTCP we
|
||||
// indirectly also ignored this error
|
||||
// FIXME: figure out where this is returned and what it means in this context
|
||||
return 0;
|
||||
}
|
||||
if (err != ERR_OK) {
|
||||
LWIP_LOG(" -> err %d", err);
|
||||
errno = ECONNRESET;
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
ssize_t write(const void *buf, size_t len) override {
|
||||
ssize_t written = internal_write(buf, len);
|
||||
if (written == -1)
|
||||
return -1;
|
||||
if (written == 0)
|
||||
// no need to output if nothing written
|
||||
return 0;
|
||||
int err = internal_output();
|
||||
if (err == -1)
|
||||
return -1;
|
||||
return written;
|
||||
}
|
||||
ssize_t writev(const struct iovec *iov, int iovcnt) override {
|
||||
ssize_t written = 0;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
ssize_t err = internal_write(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len);
|
||||
if (err == -1) {
|
||||
if (written != 0)
|
||||
// if we already read some don't return an error
|
||||
break;
|
||||
return err;
|
||||
}
|
||||
written += err;
|
||||
if (err != iov[i].iov_len)
|
||||
break;
|
||||
}
|
||||
if (written == 0)
|
||||
// no need to output if nothing written
|
||||
return 0;
|
||||
int err = internal_output();
|
||||
if (err == -1)
|
||||
return -1;
|
||||
return written;
|
||||
}
|
||||
int setblocking(bool blocking) override {
|
||||
if (pcb_ == nullptr) {
|
||||
errno = ECONNRESET;
|
||||
|
|
|
|||
|
|
@ -31,7 +31,9 @@ class Socket {
|
|||
virtual int setsockopt(int level, int optname, const void *optval, socklen_t optlen) = 0;
|
||||
virtual int listen(int backlog) = 0;
|
||||
virtual ssize_t read(void *buf, size_t len) = 0;
|
||||
virtual ssize_t readv(const struct iovec *iov, int iovcnt) = 0;
|
||||
virtual ssize_t write(const void *buf, size_t len) = 0;
|
||||
virtual ssize_t writev(const struct iovec *iov, int iovcnt) = 0;
|
||||
virtual int setblocking(bool blocking) = 0;
|
||||
virtual int loop() { return 0; };
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue