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Multi-thread queue synchronization for AsyncWebSocketClient

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0xFEEDC0DE64
2020-12-20 02:08:39 +01:00
parent f5e439c8f8
commit 344d31c1ff
2 changed files with 302 additions and 120 deletions
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348
src/AsyncWebSocket.cpp
View File

@ -132,7 +132,7 @@ AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer()
,_lock(false) ,_lock(false)
,_count(0) ,_count(0)
{ {
Serial.printf("AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer() this=0x%llx\r\n", uint64_t(this));
} }
AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(uint8_t * data, size_t size) AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(uint8_t * data, size_t size)
@ -141,6 +141,7 @@ AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(uint8_t * data, size_t
,_lock(false) ,_lock(false)
,_count(0) ,_count(0)
{ {
Serial.printf("AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer() this=0x%llx\r\n", uint64_t(this));
if (!data) { if (!data) {
return; return;
@ -161,12 +162,13 @@ AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(size_t size)
,_lock(false) ,_lock(false)
,_count(0) ,_count(0)
{ {
Serial.printf("AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer() this=0x%llx\r\n", uint64_t(this));
_data = new uint8_t[_len + 1]; _data = new uint8_t[_len + 1];
if (_data) { if (_data) {
_data[_len] = 0; _data[_len] = 0;
} }
} }
AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(const AsyncWebSocketMessageBuffer & copy) AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(const AsyncWebSocketMessageBuffer & copy)
@ -175,6 +177,8 @@ AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(const AsyncWebSocketMes
,_lock(false) ,_lock(false)
,_count(0) ,_count(0)
{ {
Serial.printf("AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer() this=0x%llx\r\n", uint64_t(this));
_len = copy._len; _len = copy._len;
_lock = copy._lock; _lock = copy._lock;
_count = 0; _count = 0;
@ -197,6 +201,8 @@ AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(AsyncWebSocketMessageBu
,_lock(false) ,_lock(false)
,_count(0) ,_count(0)
{ {
Serial.printf("AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer() this=0x%llx\r\n", uint64_t(this));
_len = copy._len; _len = copy._len;
_lock = copy._lock; _lock = copy._lock;
_count = 0; _count = 0;
@ -210,6 +216,8 @@ AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(AsyncWebSocketMessageBu
AsyncWebSocketMessageBuffer::~AsyncWebSocketMessageBuffer() AsyncWebSocketMessageBuffer::~AsyncWebSocketMessageBuffer()
{ {
Serial.printf("AsyncWebSocketMessageBuffer::~AsyncWebSocketMessageBuffer() this=0x%llx data=0x%llx\r\n", uint64_t(this), uint64_t(_data));
if (_data) { if (_data) {
delete[] _data; delete[] _data;
} }
@ -385,14 +393,13 @@ AsyncWebSocketBasicMessage::~AsyncWebSocketBasicMessage() {
*/ */
AsyncWebSocketMultiMessage::AsyncWebSocketMultiMessage(AsyncWebSocketMessageBuffer * buffer, uint8_t opcode, bool mask) AsyncWebSocketMultiMessage::AsyncWebSocketMultiMessage(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode, bool mask)
:_len(0) :_len(0)
,_sent(0) ,_sent(0)
,_ack(0) ,_ack(0)
,_acked(0) ,_acked(0)
,_WSbuffer(nullptr) ,_WSbuffer(nullptr)
{ {
_opcode = opcode & 0x07; _opcode = opcode & 0x07;
_mask = mask; _mask = mask;
@ -475,8 +482,7 @@ AsyncWebSocketMultiMessage::~AsyncWebSocketMultiMessage() {
const size_t AWSC_PING_PAYLOAD_LEN = 22; const size_t AWSC_PING_PAYLOAD_LEN = 22;
AsyncWebSocketClient::AsyncWebSocketClient(AsyncWebServerRequest *request, AsyncWebSocket *server) AsyncWebSocketClient::AsyncWebSocketClient(AsyncWebServerRequest *request, AsyncWebSocket *server)
: _messageQueue(LinkedList<AsyncWebSocketMessage *>([](AsyncWebSocketMessage *m){ delete m; })) : _tempObject(NULL)
, _tempObject(NULL)
{ {
_client = request->client(); _client = request->client();
_server = server; _server = server;
@ -498,78 +504,170 @@ AsyncWebSocketClient::AsyncWebSocketClient(AsyncWebServerRequest *request, Async
} }
AsyncWebSocketClient::~AsyncWebSocketClient(){ AsyncWebSocketClient::~AsyncWebSocketClient(){
_messageQueue.free(); Serial.printf("AsyncWebSocketClient::~AsyncWebSocketClient task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
AsyncWebLockGuard l(_lock);
_messageQueue = {};
_controlQueue = {}; _controlQueue = {};
_server->_handleEvent(this, WS_EVT_DISCONNECT, NULL, NULL, 0); _server->_handleEvent(this, WS_EVT_DISCONNECT, NULL, NULL, 0);
} }
void AsyncWebSocketClient::_onAck(size_t len, uint32_t time){ void AsyncWebSocketClient::_onAck(size_t len, uint32_t time){
_lastMessageTime = millis(); Serial.printf("AsyncWebSocketClient::_onAck task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
if (!_controlQueue.empty()){
auto &head = _controlQueue.front(); _lastMessageTime = millis();
if (head.finished()){
len -= head.len(); {
if (_status == WS_DISCONNECTING && head.opcode() == WS_DISCONNECT){ AsyncWebLockGuard l(_lock);
_controlQueue.pop();
_status = WS_DISCONNECTED; if (!_controlQueue.empty()) {
_client->close(true); auto &head = _controlQueue.front();
return; if (head.finished()){
} len -= head.len();
_controlQueue.pop(); if (_status == WS_DISCONNECTING && head.opcode() == WS_DISCONNECT){
_controlQueue.pop();
_status = WS_DISCONNECTED;
_client->close(true);
return;
}
_controlQueue.pop();
}
}
if(len && !_messageQueue.empty()){
_messageQueue.front().get().ack(len, time);
}
} }
}
if(len && !_messageQueue.isEmpty()){
_messageQueue.front()->ack(len, time);
}
_server->_cleanBuffers();
_runQueue();
}
void AsyncWebSocketClient::_onPoll(){ _server->_cleanBuffers();
if(_client->canSend() && (!_controlQueue.empty() || !_messageQueue.isEmpty())){
_runQueue();
} else if(_keepAlivePeriod > 0 && _controlQueue.empty() && _messageQueue.isEmpty() && (millis() - _lastMessageTime) >= _keepAlivePeriod){
ping((uint8_t *)AWSC_PING_PAYLOAD, AWSC_PING_PAYLOAD_LEN);
}
}
void AsyncWebSocketClient::_runQueue(){
while(!_messageQueue.isEmpty() && _messageQueue.front()->finished()){
_messageQueue.remove(_messageQueue.front());
}
if(!_controlQueue.empty() && (_messageQueue.isEmpty() || _messageQueue.front()->betweenFrames()) && webSocketSendFrameWindow(_client) > (size_t)(_controlQueue.front().len() - 1)){
_controlQueue.front().send(_client);
} else if(!_messageQueue.isEmpty() && _messageQueue.front()->betweenFrames() && webSocketSendFrameWindow(_client)){
_messageQueue.front()->send(_client);
}
}
bool AsyncWebSocketClient::queueIsFull() const {
return (_messageQueue.length() >= WS_MAX_QUEUED_MESSAGES) || (_status != WS_CONNECTED);
}
void AsyncWebSocketClient::_queueMessage(AsyncWebSocketMessage *dataMessage){
if(dataMessage == NULL)
return;
if(_status != WS_CONNECTED){
delete dataMessage;
return;
}
if(_messageQueue.length() >= WS_MAX_QUEUED_MESSAGES){
ets_printf("ERROR: Too many messages queued\n");
delete dataMessage;
} else {
_messageQueue.add(dataMessage);
}
if(_client->canSend())
_runQueue(); _runQueue();
} }
void AsyncWebSocketClient::_queueControl(uint8_t opcode, uint8_t *data, size_t len, bool mask){ void AsyncWebSocketClient::_onPoll()
_controlQueue.emplace(opcode, data, len, mask); {
if (_client->canSend()) Serial.printf("AsyncWebSocketClient::_onPoll task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
_runQueue();
AsyncWebLockGuard l(_lock);
if(_client->canSend() && (!_controlQueue.empty() || !_messageQueue.empty()))
{
_runQueue();
}
else if(_keepAlivePeriod > 0 && _controlQueue.empty() && _messageQueue.empty() && (millis() - _lastMessageTime) >= _keepAlivePeriod)
{
ping((uint8_t *)AWSC_PING_PAYLOAD, AWSC_PING_PAYLOAD_LEN);
}
}
void AsyncWebSocketClient::_runQueue()
{
Serial.printf("AsyncWebSocketClient::_runQueue task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
AsyncWebLockGuard l(_lock);
while (!_messageQueue.empty() && _messageQueue.front().get().finished())
{
_messageQueue.pop();
}
if (!_controlQueue.empty() && (_messageQueue.empty() || _messageQueue.front().get().betweenFrames()) && webSocketSendFrameWindow(_client) > (size_t)(_controlQueue.front().len() - 1))
{
_controlQueue.front().send(_client);
}
else if (!_messageQueue.empty() && _messageQueue.front().get().betweenFrames() && webSocketSendFrameWindow(_client))
{
_messageQueue.front().get().send(_client);
}
}
bool AsyncWebSocketClient::queueIsFull() const
{
Serial.printf("AsyncWebSocketClient::queueIsFull task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
size_t size;
{
AsyncWebLockGuard l(_lock);
size = _messageQueue.size();
}
return (size >= WS_MAX_QUEUED_MESSAGES) || (_status != WS_CONNECTED);
}
bool AsyncWebSocketClient::canSend() const
{
Serial.printf("AsyncWebSocketClient::canSend task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
size_t size;
{
AsyncWebLockGuard l(_lock);
size = _messageQueue.size();
}
return size < WS_MAX_QUEUED_MESSAGES;
}
void AsyncWebSocketClient::_queueControl(uint8_t opcode, uint8_t *data, size_t len, bool mask)
{
Serial.printf("AsyncWebSocketClient::_queueControl task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
{
AsyncWebLockGuard l(_lock);
_controlQueue.emplace(opcode, data, len, mask);
}
if (_client->canSend())
_runQueue();
}
void AsyncWebSocketClient::_queueMessage(const char *data, size_t len, uint8_t opcode, bool mask)
{
Serial.printf("AsyncWebSocketClient::_queueMessage task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
if(_status != WS_CONNECTED)
{
PolymorphMessageContainer{data, len, opcode, mask};
return;
}
{
AsyncWebLockGuard l(_lock);
if (_messageQueue.size() >= WS_MAX_QUEUED_MESSAGES)
{
ets_printf("ERROR: Too many messages queued\n");
PolymorphMessageContainer{data, len, opcode, mask};
}
else
{
_messageQueue.emplace(data, len, opcode, mask);
}
}
if(_client->canSend())
_runQueue();
}
void AsyncWebSocketClient::_queueMessage(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode, bool mask)
{
Serial.printf("AsyncWebSocketClient::_queueMessage task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
if(_status != WS_CONNECTED)
{
PolymorphMessageContainer{buffer, opcode, mask};
return;
}
{
AsyncWebLockGuard l(_lock);
if (_messageQueue.size() >= WS_MAX_QUEUED_MESSAGES)
{
ets_printf("ERROR: Too many messages queued\n");
PolymorphMessageContainer{buffer, opcode, mask};
}
else
{
_messageQueue.emplace(buffer, opcode, mask);
}
}
if(_client->canSend())
_runQueue();
} }
void AsyncWebSocketClient::close(uint16_t code, const char * message){ void AsyncWebSocketClient::close(uint16_t code, const char * message){
@ -768,7 +866,7 @@ size_t AsyncWebSocketClient::printf_P(PGM_P formatP, ...) {
#endif #endif
void AsyncWebSocketClient::text(const char * message, size_t len){ void AsyncWebSocketClient::text(const char * message, size_t len){
_queueMessage(new AsyncWebSocketBasicMessage(message, len)); _queueMessage(message, len);
} }
void AsyncWebSocketClient::text(const char * message){ void AsyncWebSocketClient::text(const char * message){
text(message, strlen(message)); text(message, strlen(message));
@ -800,11 +898,11 @@ void AsyncWebSocketClient::text(const __FlashStringHelper *data){
} }
void AsyncWebSocketClient::text(AsyncWebSocketMessageBuffer * buffer) void AsyncWebSocketClient::text(AsyncWebSocketMessageBuffer * buffer)
{ {
_queueMessage(new AsyncWebSocketMultiMessage(buffer)); _queueMessage(buffer);
} }
void AsyncWebSocketClient::binary(const char * message, size_t len){ void AsyncWebSocketClient::binary(const char * message, size_t len){
_queueMessage(new AsyncWebSocketBasicMessage(message, len, WS_BINARY)); _queueMessage(message, len, WS_BINARY);
} }
void AsyncWebSocketClient::binary(const char * message){ void AsyncWebSocketClient::binary(const char * message){
binary(message, strlen(message)); binary(message, strlen(message));
@ -831,7 +929,7 @@ void AsyncWebSocketClient::binary(const __FlashStringHelper *data, size_t len){
} }
void AsyncWebSocketClient::binary(AsyncWebSocketMessageBuffer * buffer) void AsyncWebSocketClient::binary(AsyncWebSocketMessageBuffer * buffer)
{ {
_queueMessage(new AsyncWebSocketMultiMessage(buffer, WS_BINARY)); _queueMessage(buffer, WS_BINARY);
} }
IPAddress AsyncWebSocketClient::remoteIP() const { IPAddress AsyncWebSocketClient::remoteIP() const {
@ -983,30 +1081,43 @@ void AsyncWebSocket::binaryAll(const char * message, size_t len){
binaryAll(buffer); binaryAll(buffer);
} }
void AsyncWebSocket::binaryAll(AsyncWebSocketMessageBuffer * buffer) void AsyncWebSocket::binaryAll(AsyncWebSocketMessageBuffer *buffer)
{ {
if (!buffer) return; if (!buffer)
buffer->lock(); return;
for (auto &c : _clients){
if (c.status() == WS_CONNECTED) buffer->lock();
c.binary(buffer);
} for (auto &c : _clients) {
buffer->unlock(); if (c.status() == WS_CONNECTED)
_cleanBuffers(); c.binary(buffer);
}
buffer->unlock();
_cleanBuffers();
} }
void AsyncWebSocket::message(uint32_t id, AsyncWebSocketMessage *message){ void AsyncWebSocket::message(uint32_t id, const char *data, size_t len, uint8_t opcode, bool mask)
AsyncWebSocketClient *c = client(id); {
if (c) AsyncWebSocketClient *c = client(id);
c->message(message); if (c)
c->message(data, len, opcode, mask);
} }
void AsyncWebSocket::messageAll(AsyncWebSocketMultiMessage *message){ void AsyncWebSocket::message(uint32_t id, AsyncWebSocketMessageBuffer *buffer, uint8_t opcode, bool mask)
for (auto &c : _clients){ {
if(c.status() == WS_CONNECTED) AsyncWebSocketClient *c = client(id);
c.message(message); if (c)
} c->message(buffer, opcode, mask);
_cleanBuffers(); }
void AsyncWebSocket::messageAll(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode, bool mask){
for (auto &c : _clients){
if (c.status() == WS_CONNECTED)
c.message(buffer, opcode, mask);
}
_cleanBuffers();
} }
size_t AsyncWebSocket::printf(uint32_t id, const char *format, ...){ size_t AsyncWebSocket::printf(uint32_t id, const char *format, ...){
@ -1206,38 +1317,47 @@ void AsyncWebSocket::handleRequest(AsyncWebServerRequest *request){
AsyncWebSocketMessageBuffer * AsyncWebSocket::makeBuffer(size_t size) AsyncWebSocketMessageBuffer * AsyncWebSocket::makeBuffer(size_t size)
{ {
AsyncWebSocketMessageBuffer *buffer{}; Serial.printf("AsyncWebSocket::makeBuffer task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
{
AsyncWebLockGuard l(_lock); AsyncWebSocketMessageBuffer *buffer{};
_buffers.emplace_back(size);
buffer = &_buffers.back(); {
} AsyncWebLockGuard l(_lock);
return buffer; _buffers.emplace_back(size);
buffer = &_buffers.back();
}
return buffer;
} }
AsyncWebSocketMessageBuffer * AsyncWebSocket::makeBuffer(uint8_t * data, size_t size) AsyncWebSocketMessageBuffer * AsyncWebSocket::makeBuffer(uint8_t * data, size_t size)
{ {
AsyncWebSocketMessageBuffer *buffer{}; Serial.printf("AsyncWebSocket::makeBuffer task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
{
AsyncWebLockGuard l(_lock);
_buffers.emplace_back(data, size);
buffer = &_buffers.back();
}
return buffer; AsyncWebSocketMessageBuffer *buffer{};
{
AsyncWebLockGuard l(_lock);
_buffers.emplace_back(data, size);
buffer = &_buffers.back();
}
return buffer;
} }
void AsyncWebSocket::_cleanBuffers() void AsyncWebSocket::_cleanBuffers()
{ {
AsyncWebLockGuard l(_lock); Serial.printf("AsyncWebSocket::_cleanBuffers task=0x%llx %s\r\n", uint64_t(xTaskGetCurrentTaskHandle()), pcTaskGetTaskName(xTaskGetCurrentTaskHandle()));
for (auto iter = std::begin(_buffers); iter != std::end(_buffers);){ AsyncWebLockGuard l(_lock);
if(iter->canDelete()){
iter = _buffers.erase(iter); for (auto iter = std::begin(_buffers); iter != std::end(_buffers);)
} else {
iter++; if(iter->canDelete())
} iter = _buffers.erase(iter);
else
iter++;
}
} }
/* /*

74
src/AsyncWebSocket.h
View File

@ -157,6 +157,63 @@ public:
virtual size_t send(AsyncClient *client) override ; virtual size_t send(AsyncClient *client) override ;
}; };
class PolymorphMessageContainer
{
union {
AsyncWebSocketBasicMessage basicMessage;
AsyncWebSocketMultiMessage multiMessage;
};
enum class Type : uint8_t { Basic, Multi };
const Type type;
public:
PolymorphMessageContainer() = delete;
PolymorphMessageContainer(const PolymorphMessageContainer &) = delete;
PolymorphMessageContainer &operator=(const PolymorphMessageContainer &) = delete;
PolymorphMessageContainer(const char *data, size_t len, uint8_t opcode=WS_TEXT, bool mask=false) :
type{Type::Basic}
{
new (&basicMessage) AsyncWebSocketBasicMessage{data, len, opcode, mask};
}
PolymorphMessageContainer(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode=WS_TEXT, bool mask=false) :
type{Type::Multi}
{
new (&multiMessage) AsyncWebSocketMultiMessage{buffer, opcode, mask};
}
~PolymorphMessageContainer()
{
switch (type)
{
case Type::Basic: basicMessage.~AsyncWebSocketBasicMessage(); break;
case Type::Multi: multiMessage.~AsyncWebSocketMultiMessage(); break;
}
}
AsyncWebSocketMessage &get()
{
switch (type)
{
case Type::Basic: return basicMessage;
case Type::Multi: return multiMessage;
}
__builtin_unreachable();
}
const AsyncWebSocketMessage &get() const
{
switch (type)
{
case Type::Basic: return basicMessage;
case Type::Multi: return multiMessage;
}
__builtin_unreachable();
}
};
class AsyncWebSocketClient { class AsyncWebSocketClient {
private: private:
AsyncClient *_client; AsyncClient *_client;
@ -164,8 +221,10 @@ class AsyncWebSocketClient {
uint32_t _clientId; uint32_t _clientId;
AwsClientStatus _status; AwsClientStatus _status;
AsyncWebLock _lock;
std::queue<AsyncWebSocketControl> _controlQueue; std::queue<AsyncWebSocketControl> _controlQueue;
LinkedList<AsyncWebSocketMessage *> _messageQueue; std::queue<PolymorphMessageContainer> _messageQueue;
uint8_t _pstate; uint8_t _pstate;
AwsFrameInfo _pinfo; AwsFrameInfo _pinfo;
@ -173,8 +232,9 @@ class AsyncWebSocketClient {
uint32_t _lastMessageTime; uint32_t _lastMessageTime;
uint32_t _keepAlivePeriod; uint32_t _keepAlivePeriod;
void _queueMessage(AsyncWebSocketMessage *dataMessage);
void _queueControl(uint8_t opcode, uint8_t *data=NULL, size_t len=0, bool mask=false); void _queueControl(uint8_t opcode, uint8_t *data=NULL, size_t len=0, bool mask=false);
void _queueMessage(const char *data, size_t len, uint8_t opcode=WS_TEXT, bool mask=false);
void _queueMessage(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode=WS_TEXT, bool mask=false);
void _runQueue(); void _runQueue();
public: public:
@ -208,7 +268,8 @@ class AsyncWebSocketClient {
} }
//data packets //data packets
void message(AsyncWebSocketMessage *message){ _queueMessage(message); } void message(const char *data, size_t len, uint8_t opcode=WS_TEXT, bool mask=false) { _queueMessage(data, len, opcode, mask); }
void message(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode=WS_TEXT, bool mask=false) { _queueMessage(buffer, opcode, mask); }
bool queueIsFull() const; bool queueIsFull() const;
size_t printf(const char *format, ...) __attribute__ ((format (printf, 2, 3))); size_t printf(const char *format, ...) __attribute__ ((format (printf, 2, 3)));
@ -231,7 +292,7 @@ class AsyncWebSocketClient {
void binary(const __FlashStringHelper *data, size_t len); void binary(const __FlashStringHelper *data, size_t len);
void binary(AsyncWebSocketMessageBuffer *buffer); void binary(AsyncWebSocketMessageBuffer *buffer);
bool canSend() { return _messageQueue.length() < WS_MAX_QUEUED_MESSAGES; } bool canSend() const;
//system callbacks (do not call) //system callbacks (do not call)
void _onAck(size_t len, uint32_t time); void _onAck(size_t len, uint32_t time);
@ -304,8 +365,9 @@ class AsyncWebSocket: public AsyncWebHandler {
void binaryAll(const __FlashStringHelper *message, size_t len); void binaryAll(const __FlashStringHelper *message, size_t len);
void binaryAll(AsyncWebSocketMessageBuffer * buffer); void binaryAll(AsyncWebSocketMessageBuffer * buffer);
void message(uint32_t id, AsyncWebSocketMessage *message); void message(uint32_t id, const char *data, size_t len, uint8_t opcode=WS_TEXT, bool mask=false);
void messageAll(AsyncWebSocketMultiMessage *message); void message(uint32_t id, AsyncWebSocketMessageBuffer *buffer, uint8_t opcode=WS_TEXT, bool mask=false);
void messageAll(AsyncWebSocketMessageBuffer *buffer, uint8_t opcode=WS_TEXT, bool mask=false);
size_t printf(uint32_t id, const char *format, ...) __attribute__ ((format (printf, 3, 4))); size_t printf(uint32_t id, const char *format, ...) __attribute__ ((format (printf, 3, 4)));
size_t printfAll(const char *format, ...) __attribute__ ((format (printf, 2, 3))); size_t printfAll(const char *format, ...) __attribute__ ((format (printf, 2, 3)));