mirror of
https://github.com/thooge/esp32-nmea2000-obp60.git
synced 2025-12-13 05:53:06 +01:00
refactor message queue
This commit is contained in:
andreas
131
lib/queue/GwMessage.cxx
Normal file
131
lib/queue/GwMessage.cxx
Normal file
@@ -0,0 +1,131 @@
|
||||
#include "GwMessage.h"
|
||||
GwMessage::GwMessage(String name)
|
||||
{
|
||||
this->name = name;
|
||||
locker = xSemaphoreCreateMutex();
|
||||
notifier = xSemaphoreCreateCounting(1, 0);
|
||||
refcount = 1;
|
||||
GW_MESSAGE_DEBUG("Message: %p\n", this);
|
||||
}
|
||||
GwMessage::~GwMessage()
|
||||
{
|
||||
GW_MESSAGE_DEBUG("~Message %p\n", this);
|
||||
vSemaphoreDelete(locker);
|
||||
vSemaphoreDelete(notifier);
|
||||
}
|
||||
void GwMessage::unref()
|
||||
{
|
||||
GW_MESSAGE_DEBUG("Message::unref %p\n", this);
|
||||
bool mustDelete = false;
|
||||
xSemaphoreTake(locker, portMAX_DELAY);
|
||||
if (refcount > 0)
|
||||
{
|
||||
refcount--;
|
||||
if (refcount == 0)
|
||||
mustDelete = true;
|
||||
}
|
||||
xSemaphoreGive(locker);
|
||||
if (mustDelete)
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
}
|
||||
void GwMessage::ref()
|
||||
{
|
||||
xSemaphoreTake(locker, portMAX_DELAY);
|
||||
refcount++;
|
||||
xSemaphoreGive(locker);
|
||||
}
|
||||
int GwMessage::wait(int maxWaitMillis)
|
||||
{
|
||||
static const int maxWait = 1000;
|
||||
int maxRetries = maxWaitMillis / maxWait;
|
||||
int lastWait = maxWaitMillis - maxWait * maxRetries;
|
||||
for (int retries = maxRetries; retries > 0; retries--)
|
||||
{
|
||||
if (xSemaphoreTake(notifier, pdMS_TO_TICKS(maxWait)))
|
||||
return true;
|
||||
esp_task_wdt_reset();
|
||||
}
|
||||
if (lastWait)
|
||||
{
|
||||
return xSemaphoreTake(notifier, pdMS_TO_TICKS(maxWait));
|
||||
}
|
||||
return false;
|
||||
}
|
||||
void GwMessage::process()
|
||||
{
|
||||
GW_MESSAGE_DEBUG("Message::process %p\n", this);
|
||||
processImpl();
|
||||
xSemaphoreGive(notifier);
|
||||
}
|
||||
String GwMessage::getName() { return name; }
|
||||
|
||||
void GwRequestMessage::processImpl(){
|
||||
GW_MESSAGE_DEBUG("RequestMessage processImpl(1) %p\n",this);
|
||||
processRequest();
|
||||
GW_MESSAGE_DEBUG("RequestMessage processImpl(2) %p\n",this);
|
||||
len=strlen(result.c_str());
|
||||
consumed=0;
|
||||
handled=true;
|
||||
}
|
||||
GwRequestMessage::GwRequestMessage(String contentType, String name):GwMessage(name){
|
||||
this->contentType=contentType;
|
||||
}
|
||||
GwRequestMessage::~GwRequestMessage(){
|
||||
GW_MESSAGE_DEBUG("~RequestMessage %p\n",this)
|
||||
}
|
||||
int GwRequestMessage::consume(uint8_t *destination,int maxLen){
|
||||
if (!handled) return RESPONSE_TRY_AGAIN;
|
||||
if (consumed >= len) return 0;
|
||||
int cplen=maxLen;
|
||||
if (cplen > (len-consumed)) cplen=len-consumed;
|
||||
memcpy(destination,result.c_str()+consumed,cplen);
|
||||
consumed+=cplen;
|
||||
return cplen;
|
||||
}
|
||||
GwRequestQueue::GwRequestQueue(GwLog *logger,int len){
|
||||
theQueue=xQueueCreate(len,sizeof(GwMessage*));
|
||||
this->logger=logger;
|
||||
}
|
||||
GwRequestQueue::~GwRequestQueue(){
|
||||
vQueueDelete(theQueue);
|
||||
}
|
||||
|
||||
GwRequestQueue::MessageSendStatus GwRequestQueue::sendAndForget(GwMessage *msg){
|
||||
msg->ref(); //for the queue
|
||||
if (!xQueueSend(theQueue, &msg, 0))
|
||||
{
|
||||
LOG_DEBUG(GwLog::LOG,"unable to enqueue %s",msg->getName().c_str());
|
||||
msg->unref();
|
||||
return MSG_ERR;
|
||||
}
|
||||
return MSG_OK;
|
||||
}
|
||||
GwRequestQueue::MessageSendStatus GwRequestQueue::sendAndWait(GwMessage *msg,unsigned long waitMillis){
|
||||
msg->ref(); //for the queue
|
||||
msg->ref(); //for us waiting
|
||||
if (!xQueueSend(theQueue, &msg, 0))
|
||||
{
|
||||
LOG_DEBUG(GwLog::LOG,"unable to enqueue %s",msg->getName().c_str());
|
||||
msg->unref();
|
||||
msg->unref();
|
||||
return MSG_ERR;
|
||||
}
|
||||
LOG_DEBUG(GwLog::DEBUG + 1, "wait queue for %s",msg->getName().c_str());
|
||||
if (msg->wait(waitMillis)){
|
||||
LOG_DEBUG(GwLog::DEBUG + 1, "request ok for %s",msg->getName().c_str());
|
||||
msg->unref();
|
||||
return MSG_OK;
|
||||
}
|
||||
LOG_DEBUG(GwLog::DEBUG, "request timeout for %s",msg->getName().c_str());
|
||||
msg->unref();
|
||||
return MSG_TIMEOUT;
|
||||
}
|
||||
GwMessage* GwRequestQueue::fetchMessage(unsigned long waitMillis){
|
||||
GwMessage *msg=NULL;
|
||||
if (xQueueReceive(theQueue,&msg,waitMillis)){
|
||||
return msg;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
@@ -2,6 +2,7 @@
|
||||
#define _GWMESSAGE_H
|
||||
#include <Arduino.h>
|
||||
#include <ESPAsyncWebServer.h>
|
||||
#include "GwLog.h"
|
||||
#include "esp_task_wdt.h"
|
||||
|
||||
#ifdef GW_MESSAGE_DEBUG_ENABLED
|
||||
@@ -13,67 +14,28 @@
|
||||
/**
|
||||
* a message class intended to be send from one task to another
|
||||
*/
|
||||
class Message{
|
||||
class GwMessage{
|
||||
private:
|
||||
SemaphoreHandle_t locker;
|
||||
SemaphoreHandle_t notifier;
|
||||
int refcount=0;
|
||||
String name;
|
||||
protected:
|
||||
virtual void processImpl()=0;
|
||||
public:
|
||||
Message(){
|
||||
locker=xSemaphoreCreateMutex();
|
||||
notifier=xSemaphoreCreateCounting(1,0);
|
||||
refcount=1;
|
||||
GW_MESSAGE_DEBUG("Message: %p\n",this);
|
||||
}
|
||||
virtual ~Message(){
|
||||
GW_MESSAGE_DEBUG("~Message %p\n",this);
|
||||
vSemaphoreDelete(locker);
|
||||
vSemaphoreDelete(notifier);
|
||||
}
|
||||
void unref(){
|
||||
GW_MESSAGE_DEBUG("Message::unref %p\n",this);
|
||||
bool mustDelete=false;
|
||||
xSemaphoreTake(locker,portMAX_DELAY);
|
||||
if (refcount > 0){
|
||||
refcount--;
|
||||
if (refcount == 0) mustDelete=true;
|
||||
}
|
||||
xSemaphoreGive(locker);
|
||||
if (mustDelete){
|
||||
delete this;
|
||||
}
|
||||
}
|
||||
void ref(){
|
||||
xSemaphoreTake(locker,portMAX_DELAY);
|
||||
refcount++;
|
||||
xSemaphoreGive(locker);
|
||||
}
|
||||
int wait(int maxWaitMillis){
|
||||
static const int maxWait=1000;
|
||||
int maxRetries=maxWaitMillis/maxWait;
|
||||
int lastWait=maxWaitMillis - maxWait*maxRetries;
|
||||
for (int retries=maxRetries;retries>0;retries--){
|
||||
if (xSemaphoreTake(notifier,pdMS_TO_TICKS(maxWait))) return true;
|
||||
esp_task_wdt_reset();
|
||||
}
|
||||
if (lastWait){
|
||||
return xSemaphoreTake(notifier,pdMS_TO_TICKS(maxWait));
|
||||
}
|
||||
return false;
|
||||
}
|
||||
void process(){
|
||||
GW_MESSAGE_DEBUG("Message::process %p\n",this);
|
||||
processImpl();
|
||||
xSemaphoreGive(notifier);
|
||||
}
|
||||
GwMessage(String name=F("unknown"));
|
||||
virtual ~GwMessage();
|
||||
void unref();
|
||||
void ref();
|
||||
int wait(int maxWaitMillis);
|
||||
void process();
|
||||
String getName();
|
||||
};
|
||||
|
||||
/**
|
||||
* a class to executa an async web request that returns a string
|
||||
*/
|
||||
class RequestMessage : public Message{
|
||||
class GwRequestMessage : public GwMessage{
|
||||
protected:
|
||||
String result;
|
||||
String contentType;
|
||||
@@ -83,32 +45,13 @@ class RequestMessage : public Message{
|
||||
bool handled=false;
|
||||
protected:
|
||||
virtual void processRequest()=0;
|
||||
virtual void processImpl(){
|
||||
GW_MESSAGE_DEBUG("RequestMessage processImpl(1) %p\n",this);
|
||||
processRequest();
|
||||
GW_MESSAGE_DEBUG("RequestMessage processImpl(2) %p\n",this);
|
||||
len=strlen(result.c_str());
|
||||
consumed=0;
|
||||
handled=true;
|
||||
}
|
||||
virtual void processImpl();
|
||||
public:
|
||||
RequestMessage(String contentType):Message(){
|
||||
this->contentType=contentType;
|
||||
}
|
||||
virtual ~RequestMessage(){
|
||||
GW_MESSAGE_DEBUG("~RequestMessage %p\n",this)
|
||||
}
|
||||
GwRequestMessage(String contentType,String name=F("web"));
|
||||
virtual ~GwRequestMessage();
|
||||
String getResult(){return result;}
|
||||
int getLen(){return len;}
|
||||
int consume(uint8_t *destination,int maxLen){
|
||||
if (!handled) return RESPONSE_TRY_AGAIN;
|
||||
if (consumed >= len) return 0;
|
||||
int cplen=maxLen;
|
||||
if (cplen > (len-consumed)) cplen=len-consumed;
|
||||
memcpy(destination,result.c_str()+consumed,cplen);
|
||||
consumed+=cplen;
|
||||
return cplen;
|
||||
}
|
||||
int consume(uint8_t *destination,int maxLen);
|
||||
bool isHandled(){return handled;}
|
||||
String getContentType(){
|
||||
return contentType;
|
||||
@@ -116,4 +59,22 @@ class RequestMessage : public Message{
|
||||
|
||||
};
|
||||
|
||||
class GwRequestQueue{
|
||||
private:
|
||||
QueueHandle_t theQueue;
|
||||
GwLog *logger;
|
||||
public:
|
||||
typedef enum{
|
||||
MSG_OK,
|
||||
MSG_ERR,
|
||||
MSG_TIMEOUT
|
||||
} MessageSendStatus;
|
||||
GwRequestQueue(GwLog *logger,int len);
|
||||
~GwRequestQueue();
|
||||
//both send methods will increment the ref count when enqueing
|
||||
MessageSendStatus sendAndForget(GwMessage *msg);
|
||||
MessageSendStatus sendAndWait(GwMessage *msg,unsigned long waitMillis);
|
||||
GwMessage* fetchMessage(unsigned long waitMillis);
|
||||
};
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user