mirror of
https://github.com/esphome/esphome.git
synced 2024-11-10 01:07:45 +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
|
|
@ -702,15 +702,7 @@ bool APIConnection::send_log_message(int level, const char *tag, const char *lin
|
|||
// string message = 3;
|
||||
buffer.encode_string(3, line, strlen(line));
|
||||
// SubscribeLogsResponse - 29
|
||||
bool success = this->send_buffer(buffer, 29);
|
||||
if (!success) {
|
||||
buffer = this->create_buffer();
|
||||
// bool send_failed = 4;
|
||||
buffer.encode_bool(4, true);
|
||||
return this->send_buffer(buffer, 29);
|
||||
} else {
|
||||
return true;
|
||||
}
|
||||
return this->send_buffer(buffer, 29);
|
||||
}
|
||||
|
||||
HelloResponse APIConnection::hello(const HelloRequest &msg) {
|
||||
|
|
@ -783,8 +775,23 @@ void APIConnection::subscribe_home_assistant_states(const SubscribeHomeAssistant
|
|||
bool APIConnection::send_buffer(ProtoWriteBuffer buffer, uint32_t message_type) {
|
||||
if (this->remove_)
|
||||
return false;
|
||||
if (!this->helper_->can_write_without_blocking())
|
||||
return false;
|
||||
if (!this->helper_->can_write_without_blocking()) {
|
||||
delay(0);
|
||||
APIError err = helper_->loop();
|
||||
if (err != APIError::OK) {
|
||||
on_fatal_error();
|
||||
ESP_LOGW(TAG, "%s: Socket operation failed: %s errno=%d", client_info_.c_str(), api_error_to_str(err), errno);
|
||||
return false;
|
||||
}
|
||||
if (!this->helper_->can_write_without_blocking()) {
|
||||
// SubscribeLogsResponse
|
||||
if (message_type != 29) {
|
||||
ESP_LOGV(TAG, "Cannot send message because of TCP buffer space");
|
||||
}
|
||||
delay(0);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
APIError err = this->helper_->write_packet(message_type, buffer.get_buffer()->data(), buffer.get_buffer()->size());
|
||||
if (err == APIError::WOULD_BLOCK)
|
||||
|
|
|
|||
|
|
@ -125,13 +125,6 @@ APIError APINoiseFrameHelper::init() {
|
|||
HELPER_LOG("Setting nonblocking failed with errno %d", errno);
|
||||
return APIError::TCP_NONBLOCKING_FAILED;
|
||||
}
|
||||
int enable = 1;
|
||||
err = socket_->setsockopt(IPPROTO_TCP, TCP_NODELAY, &enable, sizeof(int));
|
||||
if (err != 0) {
|
||||
state_ = State::FAILED;
|
||||
HELPER_LOG("Setting nodelay failed with errno %d", errno);
|
||||
return APIError::TCP_NODELAY_FAILED;
|
||||
}
|
||||
|
||||
// init prologue
|
||||
prologue_.insert(prologue_.end(), PROLOGUE_INIT, PROLOGUE_INIT + strlen(PROLOGUE_INIT));
|
||||
|
|
@ -494,12 +487,13 @@ APIError APINoiseFrameHelper::write_packet(uint16_t type, const uint8_t *payload
|
|||
size_t total_len = 3 + mbuf.size;
|
||||
tmpbuf[1] = (uint8_t)(mbuf.size >> 8);
|
||||
tmpbuf[2] = (uint8_t) mbuf.size;
|
||||
|
||||
struct iovec iov;
|
||||
iov.iov_base = &tmpbuf[0];
|
||||
iov.iov_len = total_len;
|
||||
|
||||
// write raw to not have two packets sent if NAGLE disabled
|
||||
aerr = write_raw_(&tmpbuf[0], total_len);
|
||||
if (aerr != APIError::OK) {
|
||||
return aerr;
|
||||
}
|
||||
return APIError::OK;
|
||||
return write_raw_(&iov, 1);
|
||||
}
|
||||
APIError APINoiseFrameHelper::try_send_tx_buf_() {
|
||||
// try send from tx_buf
|
||||
|
|
@ -526,16 +520,19 @@ APIError APINoiseFrameHelper::try_send_tx_buf_() {
|
|||
* @param data The data to write
|
||||
* @param len The length of data
|
||||
*/
|
||||
APIError APINoiseFrameHelper::write_raw_(const uint8_t *data, size_t len) {
|
||||
if (len == 0)
|
||||
APIError APINoiseFrameHelper::write_raw_(const struct iovec *iov, int iovcnt) {
|
||||
if (iovcnt == 0)
|
||||
return APIError::OK;
|
||||
int err;
|
||||
APIError aerr;
|
||||
|
||||
// uncomment for even more debugging
|
||||
size_t total_write_len = 0;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
#ifdef HELPER_LOG_PACKETS
|
||||
ESP_LOGVV(TAG, "Sending raw: %s", hexencode(data, len).c_str());
|
||||
ESP_LOGVV(TAG, "Sending raw: %s", hexencode(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len).c_str());
|
||||
#endif
|
||||
total_write_len += iov[i].iov_len;
|
||||
}
|
||||
|
||||
if (!tx_buf_.empty()) {
|
||||
// try to empty tx_buf_ first
|
||||
|
|
@ -546,41 +543,56 @@ APIError APINoiseFrameHelper::write_raw_(const uint8_t *data, size_t len) {
|
|||
|
||||
if (!tx_buf_.empty()) {
|
||||
// tx buf not empty, can't write now because then stream would be inconsistent
|
||||
tx_buf_.insert(tx_buf_.end(), data, data + len);
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
|
||||
reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
|
||||
}
|
||||
return APIError::OK;
|
||||
}
|
||||
|
||||
ssize_t sent = socket_->write(data, len);
|
||||
ssize_t sent = socket_->writev(iov, iovcnt);
|
||||
if (is_would_block(sent)) {
|
||||
// operation would block, add buffer to tx_buf
|
||||
tx_buf_.insert(tx_buf_.end(), data, data + len);
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
|
||||
reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
|
||||
}
|
||||
return APIError::OK;
|
||||
} else if (sent == -1) {
|
||||
// an error occured
|
||||
state_ = State::FAILED;
|
||||
HELPER_LOG("Socket write failed with errno %d", errno);
|
||||
return APIError::SOCKET_WRITE_FAILED;
|
||||
} else if (sent != len) {
|
||||
} else if (sent != total_write_len) {
|
||||
// partially sent, add end to tx_buf
|
||||
tx_buf_.insert(tx_buf_.end(), data + sent, data + len);
|
||||
size_t to_consume = sent;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
if (to_consume >= iov[i].iov_len) {
|
||||
to_consume -= iov[i].iov_len;
|
||||
} else {
|
||||
tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base) + to_consume,
|
||||
reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
|
||||
to_consume = 0;
|
||||
}
|
||||
}
|
||||
return APIError::OK;
|
||||
}
|
||||
// fully sent
|
||||
return APIError::OK;
|
||||
}
|
||||
APIError APINoiseFrameHelper::write_frame_(const uint8_t *data, size_t len) {
|
||||
APIError aerr;
|
||||
|
||||
uint8_t header[3];
|
||||
header[0] = 0x01; // indicator
|
||||
header[1] = (uint8_t)(len >> 8);
|
||||
header[2] = (uint8_t) len;
|
||||
|
||||
aerr = write_raw_(header, 3);
|
||||
if (aerr != APIError::OK)
|
||||
return aerr;
|
||||
aerr = write_raw_(data, len);
|
||||
return aerr;
|
||||
struct iovec iov[2];
|
||||
iov[0].iov_base = header;
|
||||
iov[0].iov_len = 3;
|
||||
iov[1].iov_base = const_cast<uint8_t *>(data);
|
||||
iov[1].iov_len = len;
|
||||
|
||||
return write_raw_(iov, 2);
|
||||
}
|
||||
|
||||
/** Initiate the data structures for the handshake.
|
||||
|
|
@ -709,13 +721,6 @@ APIError APIPlaintextFrameHelper::init() {
|
|||
HELPER_LOG("Setting nonblocking failed with errno %d", errno);
|
||||
return APIError::TCP_NONBLOCKING_FAILED;
|
||||
}
|
||||
int enable = 1;
|
||||
err = socket_->setsockopt(IPPROTO_TCP, TCP_NODELAY, &enable, sizeof(int));
|
||||
if (err != 0) {
|
||||
state_ = State::FAILED;
|
||||
HELPER_LOG("Setting nodelay failed with errno %d", errno);
|
||||
return APIError::TCP_NODELAY_FAILED;
|
||||
}
|
||||
|
||||
state_ = State::DATA;
|
||||
return APIError::OK;
|
||||
|
|
@ -863,15 +868,13 @@ APIError APIPlaintextFrameHelper::write_packet(uint16_t type, const uint8_t *pay
|
|||
ProtoVarInt(payload_len).encode(header);
|
||||
ProtoVarInt(type).encode(header);
|
||||
|
||||
aerr = write_raw_(&header[0], header.size());
|
||||
if (aerr != APIError::OK) {
|
||||
return aerr;
|
||||
}
|
||||
aerr = write_raw_(payload, payload_len);
|
||||
if (aerr != APIError::OK) {
|
||||
return aerr;
|
||||
}
|
||||
return APIError::OK;
|
||||
struct iovec iov[2];
|
||||
iov[0].iov_base = &header[0];
|
||||
iov[0].iov_len = header.size();
|
||||
iov[1].iov_base = const_cast<uint8_t *>(payload);
|
||||
iov[1].iov_len = payload_len;
|
||||
|
||||
return write_raw_(iov, 2);
|
||||
}
|
||||
APIError APIPlaintextFrameHelper::try_send_tx_buf_() {
|
||||
// try send from tx_buf
|
||||
|
|
@ -896,16 +899,19 @@ APIError APIPlaintextFrameHelper::try_send_tx_buf_() {
|
|||
* @param data The data to write
|
||||
* @param len The length of data
|
||||
*/
|
||||
APIError APIPlaintextFrameHelper::write_raw_(const uint8_t *data, size_t len) {
|
||||
if (len == 0)
|
||||
APIError APIPlaintextFrameHelper::write_raw_(const struct iovec *iov, int iovcnt) {
|
||||
if (iovcnt == 0)
|
||||
return APIError::OK;
|
||||
int err;
|
||||
APIError aerr;
|
||||
|
||||
// uncomment for even more debugging
|
||||
size_t total_write_len = 0;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
#ifdef HELPER_LOG_PACKETS
|
||||
ESP_LOGVV(TAG, "Sending raw: %s", hexencode(data, len).c_str());
|
||||
ESP_LOGVV(TAG, "Sending raw: %s", hexencode(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len).c_str());
|
||||
#endif
|
||||
total_write_len += iov[i].iov_len;
|
||||
}
|
||||
|
||||
if (!tx_buf_.empty()) {
|
||||
// try to empty tx_buf_ first
|
||||
|
|
@ -916,23 +922,38 @@ APIError APIPlaintextFrameHelper::write_raw_(const uint8_t *data, size_t len) {
|
|||
|
||||
if (!tx_buf_.empty()) {
|
||||
// tx buf not empty, can't write now because then stream would be inconsistent
|
||||
tx_buf_.insert(tx_buf_.end(), data, data + len);
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
|
||||
reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
|
||||
}
|
||||
return APIError::OK;
|
||||
}
|
||||
|
||||
ssize_t sent = socket_->write(data, len);
|
||||
ssize_t sent = socket_->writev(iov, iovcnt);
|
||||
if (is_would_block(sent)) {
|
||||
// operation would block, add buffer to tx_buf
|
||||
tx_buf_.insert(tx_buf_.end(), data, data + len);
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base),
|
||||
reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
|
||||
}
|
||||
return APIError::OK;
|
||||
} else if (sent == -1) {
|
||||
// an error occured
|
||||
state_ = State::FAILED;
|
||||
HELPER_LOG("Socket write failed with errno %d", errno);
|
||||
return APIError::SOCKET_WRITE_FAILED;
|
||||
} else if (sent != len) {
|
||||
} else if (sent != total_write_len) {
|
||||
// partially sent, add end to tx_buf
|
||||
tx_buf_.insert(tx_buf_.end(), data + sent, data + len);
|
||||
size_t to_consume = sent;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
if (to_consume >= iov[i].iov_len) {
|
||||
to_consume -= iov[i].iov_len;
|
||||
} else {
|
||||
tx_buf_.insert(tx_buf_.end(), reinterpret_cast<uint8_t *>(iov[i].iov_base) + to_consume,
|
||||
reinterpret_cast<uint8_t *>(iov[i].iov_base) + iov[i].iov_len);
|
||||
to_consume = 0;
|
||||
}
|
||||
}
|
||||
return APIError::OK;
|
||||
}
|
||||
// fully sent
|
||||
|
|
|
|||
|
|
@ -58,6 +58,7 @@ const char *api_error_to_str(APIError err);
|
|||
|
||||
class APIFrameHelper {
|
||||
public:
|
||||
virtual ~APIFrameHelper() = default;
|
||||
virtual APIError init() = 0;
|
||||
virtual APIError loop() = 0;
|
||||
virtual APIError read_packet(ReadPacketBuffer *buffer) = 0;
|
||||
|
|
@ -96,7 +97,7 @@ class APINoiseFrameHelper : public APIFrameHelper {
|
|||
APIError try_read_frame_(ParsedFrame *frame);
|
||||
APIError try_send_tx_buf_();
|
||||
APIError write_frame_(const uint8_t *data, size_t len);
|
||||
APIError write_raw_(const uint8_t *data, size_t len);
|
||||
APIError write_raw_(const struct iovec *iov, int iovcnt);
|
||||
APIError init_handshake_();
|
||||
APIError check_handshake_finished_();
|
||||
void send_explicit_handshake_reject_(const std::string &reason);
|
||||
|
|
@ -154,7 +155,7 @@ class APIPlaintextFrameHelper : public APIFrameHelper {
|
|||
|
||||
APIError try_read_frame_(ParsedFrame *frame);
|
||||
APIError try_send_tx_buf_();
|
||||
APIError write_raw_(const uint8_t *data, size_t len);
|
||||
APIError write_raw_(const struct iovec *iov, int iovcnt);
|
||||
|
||||
std::unique_ptr<socket::Socket> socket_;
|
||||
|
||||
|
|
|
|||
|
|
@ -6,6 +6,10 @@
|
|||
|
||||
#include <cstring>
|
||||
|
||||
#ifdef ARDUINO_ARCH_ESP32
|
||||
#include <esp_idf_version.h>
|
||||
#endif
|
||||
|
||||
namespace esphome {
|
||||
namespace socket {
|
||||
|
||||
|
|
@ -76,7 +80,51 @@ class BSDSocketImpl : public Socket {
|
|||
}
|
||||
int listen(int backlog) override { return ::listen(fd_, backlog); }
|
||||
ssize_t read(void *buf, size_t len) override { return ::read(fd_, buf, len); }
|
||||
ssize_t readv(const struct iovec *iov, int iovcnt) override {
|
||||
#if defined(ARDUINO_ARCH_ESP32) && ESP_IDF_VERSION_MAJOR < 4
|
||||
// esp-idf v3 doesn't have readv, emulate it
|
||||
ssize_t ret = 0;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
ssize_t err = this->read(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len);
|
||||
if (err == -1) {
|
||||
if (ret != 0)
|
||||
// if we already read some don't return an error
|
||||
break;
|
||||
return err;
|
||||
}
|
||||
ret += err;
|
||||
if (err != iov[i].iov_len)
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
#else
|
||||
return ::readv(fd_, iov, iovcnt);
|
||||
#endif
|
||||
}
|
||||
ssize_t write(const void *buf, size_t len) override { return ::write(fd_, buf, len); }
|
||||
ssize_t send(void *buf, size_t len, int flags) { return ::send(fd_, buf, len, flags); }
|
||||
ssize_t writev(const struct iovec *iov, int iovcnt) override {
|
||||
#if defined(ARDUINO_ARCH_ESP32) && ESP_IDF_VERSION_MAJOR < 4
|
||||
// esp-idf v3 doesn't have writev, emulate it
|
||||
ssize_t ret = 0;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
ssize_t err =
|
||||
this->send(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len, i == iovcnt - 1 ? 0 : MSG_MORE);
|
||||
if (err == -1) {
|
||||
if (ret != 0)
|
||||
// if we already wrote some don't return an error
|
||||
break;
|
||||
return err;
|
||||
}
|
||||
ret += err;
|
||||
if (err != iov[i].iov_len)
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
#else
|
||||
return ::writev(fd_, iov, iovcnt);
|
||||
#endif
|
||||
}
|
||||
int setblocking(bool blocking) override {
|
||||
int fl = ::fcntl(fd_, F_GETFL, 0);
|
||||
if (blocking) {
|
||||
|
|
|
|||
|
|
@ -81,6 +81,11 @@ struct sockaddr_storage {
|
|||
};
|
||||
typedef uint32_t socklen_t;
|
||||
|
||||
struct iovec {
|
||||
void *iov_base;
|
||||
size_t iov_len;
|
||||
};
|
||||
|
||||
#ifdef ARDUINO_ARCH_ESP8266
|
||||
// arduino-esp8266 declares a global vars called INADDR_NONE/ANY which are invalid with the define
|
||||
#ifdef INADDR_ANY
|
||||
|
|
@ -104,6 +109,7 @@ typedef uint32_t socklen_t;
|
|||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/uio.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdint.h>
|
||||
|
|
|
|||
|
|
@ -371,7 +371,23 @@ class LWIPRawImpl : public Socket {
|
|||
|
||||
return read;
|
||||
}
|
||||
ssize_t write(const void *buf, size_t len) override {
|
||||
ssize_t readv(const struct iovec *iov, int iovcnt) override {
|
||||
ssize_t ret = 0;
|
||||
for (int i = 0; i < iovcnt; i++) {
|
||||
ssize_t err = read(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len);
|
||||
if (err == -1) {
|
||||
if (ret != 0)
|
||||
// if we already read some don't return an error
|
||||
break;
|
||||
return err;
|
||||
}
|
||||
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