Arduino内存泄漏

我在Pinoccio上运行一些代码，这是Arduino的一个分支。我在下面的代码中泄漏了内存，并且包含了我的程序的内存占用量与时间的关系。Arduino内存泄漏

我已经花了最后几个小时调试为什么我的记忆缓慢泄漏，所以我决定给这个论坛一个镜头。

#include <SPI.h> 
#include <Wire.h> 
#include <Scout.h> 
#include <GS.h> 
#include <bitlash.h> 
#include <lwm.h> 
#include <js0n.h> 
#include <QueueArray.h> 
#include <Oyoroi.h> 
#include <aJSON.h> 
#include <MemoryFree.h> 


#define SERVER_LOCATION "1.2.3.4" 
#define SERVER_PORT 5000 

int INTERVAL_QUERY_SERVER = 10000; 

struct OMessage { 
    int scoutId; 
    String message; 
    int messageKey; 
}; 

QueueArray<OMessage*> queue; 
GSTcpClient *clientPtr; 
GSModule *gsPtr; 

bool isOyoroiVerbose = 0; 


void setup() { 
    Scout.setup("Custom", "Unknown", -1); 
    Serial.begin(115200); 

    Shell.isVerbose = false; 
    Shell.eval("rm *");  // Clean up previous installations 
    Shell.eval("hq.verbose(0)"); 
    Shell.eval("events.verbose(0)"); 
    Shell.eval("mesh.verbose(0)"); 

    addBitlashFunction("oyoroi.verbose", (bitlash_function) oyoroiVerbose); 
    Shell.eval("oyoroi.verbose(1)"); 

    queue.setPrinter(Serial); 

    addBitlashFunction("oyoroi.queue", (bitlash_function) oyoroiQueue); 
    addBitlashFunction("oyoroi.connect", (bitlash_function) oyoroiConnect); 

    // Do not use oyoroi.queue(arg(1), key.print(arg(2))) here because key.print 
    // returns 1 when it has executed successfully. 
    Shell.eval("function on.message.scout { oyoroi.queue(arg(1), arg(2)) }"); 

    gsPtr = &pinoccio::WifiModule::instance.bp()->gs; 
    // if you don't use new it will be deleted out of scope 
    clientPtr = new GSTcpClient(*gsPtr); 
} 


long last = 0; 

void loop() { 
    Scout.loop(); 

    long now = millis(); 
    if (now - last > INTERVAL_QUERY_SERVER) { 
    last = now; 
    oyoroiConnect(); 
    } else if (now < last) { // millis resets 
    last = now; 
    } 
} 


numvar oyoroiVerbose(void) { 
    if (!checkArgs(1, F("usage: oyoroi.verbose(flag)"))) { 
    return 0; 
    } 
    isOyoroiVerbose = getarg(1); 
    return 1; 
} 


numvar oyoroiQueue(void) { 
    if (isOyoroiVerbose) { 
    Serial.print("oyoroi.queue: scoutId:"); 
    Serial.print(getarg(1)); 
    Serial.print(" message:"); 
    // do not use getstringarg 
    Serial.print(keyGet(getarg(2))); 
    Serial.print(" free-memory:"); 
    Serial.println(freeMemory()); 
    } 
    OMessage *m = new OMessage(); 
    m->scoutId = getarg(1); 
    m->message = keyGet(getarg(2)); 
    m->messageKey = getarg(2); 
    queue.enqueue(m); 
} 


String getPostData(void) { 
    Serial.print("getPostData - 1: "); Serial.println(freeMemory()); 
    aJsonObject *root = aJson.createObject(); 
    aJsonObject *array = aJson.createArray(); 
    aJson.addItemToObject(root, "data", array); 
    int i=queue.count(); 

    Serial.print("getPostData - 2: "); Serial.println(freeMemory()); 
    while (!queue.isEmpty()) { 
    OMessage *m = queue.dequeue(); 
    aJsonObject *node = aJson.createObject(); 

    aJson.addNumberToObject(node, "scoutId", m->scoutId); 

    char charBuf[10]; 
    m->message.toCharArray(charBuf, 10); 
    aJson.addStringToObject(node, "message", charBuf); 

    aJson.addItemToArray(array, node); 

    // Don't forget to free up our used memory! 
    keyFree(m->messageKey); 
    delete(m); 
    } 
    Serial.print("getPostData - 3: "); Serial.println(freeMemory()); 
    char *json_String = aJson.print(root); 

    Serial.print("getPostData - 4: "); Serial.println(freeMemory()); 
    while (i>0) { 
    aJson.deleteItemFromArray(array, i--); 
    } 
    aJson.deleteItemFromObject(root, "data"); 
    aJson.deleteItem(root); 
    Serial.print("getPostData - 5: "); Serial.println(freeMemory()); 

    return json_String; 
} 


numvar oyoroiConnect(void) { 
    Serial.print("oyoroiConnect - 1: "); Serial.println(freeMemory()); 

    if (queue.isEmpty()) { 
    if (isOyoroiVerbose) 
     Serial.println("Queue is empty."); 
    return 0; 
    } 

    if (!gsPtr->isAssociated()) { 
    if (isOyoroiVerbose) 
     Serial.println("GSModule not associated yet."); 
    return 0; 
    } 

    IPAddress ip; 
    char* url = SERVER_LOCATION; 

    if (!gsPtr->parseIpAddress(&ip, url)) { 
    ip = gsPtr->dnsLookup(url); 

    if (ip == INADDR_NONE) { 
     if (isOyoroiVerbose) { 
     Serial.print(F("Failed to resolve ")); 
     Serial.println(url); 
     } 
     return 0; 
    } 
    } 

    if (!clientPtr->connect(ip, SERVER_PORT)) { 
    Serial.print(F("ERROR - Connection to ")); 
    Serial.print(url); 
    Serial.print(F(":")); 
    Serial.print(SERVER_PORT); 
    Serial.println(F(" failed.")); 
    return 0; 
    } 

    if (isOyoroiVerbose) 
    Serial.println("Client successfully connected to server"); 
    clientPtr->println(F("POST/HTTP/1.1")); 
    clientPtr->println(F("User-Agent: pinoccio")); 

    clientPtr->print(F("Host: ")); 
    clientPtr->print(SERVER_LOCATION); 
    clientPtr->print(":"); 
    clientPtr->println(SERVER_PORT); 

    clientPtr->println("Connection: close"); 

    String postData = getPostData(); 
    Serial.print("oyoroiConnect - 2: "); Serial.println(freeMemory()); 

    clientPtr->print("Content-Length: "); 
    clientPtr->println(postData.length()); 
    clientPtr->println("Content-type: application/json"); 
    clientPtr->println(); 

    clientPtr->println(postData); 

    clientPtr->println(); 
    clientPtr->flush(); 

    while (clientPtr->connected()) { 
    if (clientPtr->available()) { 
     clientPtr->read(); 
    } else { 
     Scout.loop(); 
    } 
    } 

    Serial.print("oyoroiConnect - 3: "); Serial.println(freeMemory()); 

    return 1; 
}

和日志：

oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:15363 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:15338 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:15316 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:15288 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:15113 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:15117 
oyoroiConnect - 1: 15401 
Client successfully connected to server 
getPostData - 1: 15332 
getPostData - 2: 15294 
getPostData - 3: 14974 
getPostData - 4: 14716 
getPostData - 5: 15211 
oyoroiConnect - 2: 15063 
oyoroiConnect - 3: 15098 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14974 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:14950 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14930 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14904 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:14882 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14853 
oyoroiConnect - 1: 15171 
Client successfully connected to server 
getPostData - 1: 15102 
getPostData - 2: 15064 
getPostData - 3: 14753 
getPostData - 4: 14495 
getPostData - 5: 14988 
oyoroiConnect - 2: 14840 
oyoroiConnect - 3: 14840 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14716 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:14692 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14672 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14646 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:14624 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14595 
oyoroiConnect - 1: 14913 
Client successfully connected to server 
getPostData - 1: 14844 
getPostData - 2: 14806 
getPostData - 3: 14495 
getPostData - 4: 14237 
getPostData - 5: 14730 
oyoroiConnect - 2: 14582 
oyoroiConnect - 3: 14582 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14458 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:14434 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14414 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14388 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:14366 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14337 
oyoroiConnect - 1: 14655 
Client successfully connected to server 
getPostData - 1: 14586 
getPostData - 2: 14548 
getPostData - 3: 14237 
getPostData - 4: 13979 
getPostData - 5: 14472 
oyoroiConnect - 2: 14324 
oyoroiConnect - 3: 14324 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14200 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:14176 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:14156 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:14130 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:14108 
oyoroiConnect - 1: 14419 
Client successfully connected to server 
getPostData - 1: 14350 
getPostData - 2: 14312 
getPostData - 3: 14052 
getPostData - 4: 13794 
getPostData - 5: 14214 
oyoroiConnect - 2: 14100 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13753 
oyoroiConnect - 3: 14078 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13918 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:13898 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13872 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13850 
oyoroiConnect - 1: 14161 
Client successfully connected to server 
getPostData - 1: 14092 
getPostData - 2: 14054 
getPostData - 3: 13794 
getPostData - 4: 13536 
getPostData - 5: 13956 
oyoroiConnect - 2: 13842 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:13495 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13471 
oyoroiConnect - 3: 13798 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13640 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:13614 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13592 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13563 
oyoroiConnect - 1: 13881 
Client successfully connected to server 
getPostData - 1: 13812 
getPostData - 2: 13774 
getPostData - 3: 13463 
getPostData - 4: 13205 
getPostData - 5: 13698 
oyoroiConnect - 2: 13550 
oyoroiConnect - 3: 13550 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:13426 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13402 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13382 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:13356 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13334 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13305 
oyoroiConnect - 1: 13623 
Client successfully connected to server 
getPostData - 1: 13554 
getPostData - 2: 13516 
getPostData - 3: 13205 
getPostData - 4: 12947 
getPostData - 5: 13440 
oyoroiConnect - 2: 13292 
oyoroiConnect - 3: 13292 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:13168 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13144 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13124 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:13098 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:13076 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:13047 
oyoroiConnect - 1: 13365 
Client successfully connected to server 
getPostData - 1: 13296 
getPostData - 2: 13258 
getPostData - 3: 12947 
getPostData - 4: 12689 
getPostData - 5: 13182 
oyoroiConnect - 2: 13034 
oyoroiConnect - 3: 13034 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:12910 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12886 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:12866 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:12840 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12818 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:12789 
oyoroiConnect - 1: 13107 
Client successfully connected to server 
getPostData - 1: 13038 
getPostData - 2: 13000 
getPostData - 3: 12689 
getPostData - 4: 12431 
getPostData - 5: 12924 
oyoroiConnect - 2: 12776 
oyoroiConnect - 3: 12776 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:12652 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12628 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:12608 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:12582 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12560 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:12531 
oyoroiConnect - 1: 12849 
Client successfully connected to server 
getPostData - 1: 12780 
getPostData - 2: 12742 
getPostData - 3: 12431 
getPostData - 4: 12173 
getPostData - 5: 12666 
oyoroiConnect - 2: 12518 
oyoroiConnect - 3: 12518 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:12394 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12370 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:12350 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:12324 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12302 
oyoroiConnect - 1: 12613 
Client successfully connected to server 
getPostData - 1: 12544 
getPostData - 2: 12506 
getPostData - 3: 12246 
getPostData - 4: 11988 
getPostData - 5: 12408 
oyoroiConnect - 2: 12294 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11947 
oyoroiConnect - 3: 12272 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:12112 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:12092 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:12066 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:11939 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11910 
oyoroiConnect - 1: 12228 
Client successfully connected to server 
getPostData - 1: 12159 
getPostData - 2: 12121 
getPostData - 3: 11800 
getPostData - 4: 11542 
getPostData - 5: 12037 
oyoroiConnect - 2: 11889 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11542 
oyoroiConnect - 3: 11867 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:11741 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11721 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11695 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:11673 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11643 
oyoroiConnect - 1: 11959 
Client successfully connected to server 
getPostData - 1: 11890 
getPostData - 2: 11852 
getPostData - 3: 11536 
getPostData - 4: 11278 
getPostData - 5: 11779 
oyoroiConnect - 2: 11631 
oyoroiConnect - 3: 11631 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11507 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:11483 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11463 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11437 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:11415 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11385 
oyoroiConnect - 1: 11701 
Client successfully connected to server 
getPostData - 1: 11632 
getPostData - 2: 11594 
getPostData - 3: 11278 
getPostData - 4: 11020 
getPostData - 5: 11521 
oyoroiConnect - 2: 11373 
oyoroiConnect - 3: 11373 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11249 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:11225 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11205 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:11179 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:11157 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:11127 
oyoroiConnect - 1: 11443 
Client successfully connected to server 
getPostData - 1: 11374 
getPostData - 2: 11336 
getPostData - 3: 11020 
getPostData - 4: 10762 
getPostData - 5: 11263 
oyoroiConnect - 2: 11115 
oyoroiConnect - 3: 11115 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10991 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:10967 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10947 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10921 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:10899 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10869 
oyoroiConnect - 1: 11185 
Client successfully connected to server 
getPostData - 1: 11116 
getPostData - 2: 11078 
getPostData - 3: 10762 
getPostData - 4: 10504 
getPostData - 5: 11005 
oyoroiConnect - 2: 10857 
oyoroiConnect - 3: 10857 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10733 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:10709 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10689 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10663 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:10641 
oyoroiConnect - 1: 10952 
Client successfully connected to server 
getPostData - 1: 10883 
getPostData - 2: 10845 
getPostData - 3: 10577 
getPostData - 4: 10319 
getPostData - 5: 10747 
oyoroiConnect - 2: 10633 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10286 
oyoroiConnect - 3: 10611 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10451 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:10431 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10405 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10383 
oyoroiConnect - 1: 10694 
Client successfully connected to server 
getPostData - 1: 10625 
getPostData - 2: 10587 
getPostData - 3: 10319 
getPostData - 4: 10061 
getPostData - 5: 10489 
oyoroiConnect - 2: 10375 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:10028 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10004 
oyoroiConnect - 3: 10331 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10173 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:10147 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:10125 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:10095 
oyoroiConnect - 1: 10411 
Client successfully connected to server 
getPostData - 1: 10342 
getPostData - 2: 10304 
getPostData - 3: 9988 
getPostData - 4: 9730 
getPostData - 5: 10231 
oyoroiConnect - 2: 10083 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:9736 
oyoroiConnect - 3: 10061 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9935 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9915 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:9889 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9867 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9837 
oyoroiConnect - 1: 10153 
Client successfully connected to server 
getPostData - 1: 10084 
getPostData - 2: 10046 
getPostData - 3: 9730 
getPostData - 4: 9472 
getPostData - 5: 9973 
oyoroiConnect - 2: 9825 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:9478 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9454 
oyoroiConnect - 3: 9781 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9657 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:9631 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9609 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9579 
oyoroiConnect - 1: 9895 
Client successfully connected to server 
getPostData - 1: 9826 
getPostData - 2: 9788 
getPostData - 3: 9472 
getPostData - 4: 9214 
getPostData - 5: 9715 
oyoroiConnect - 2: 9567 
oyoroiConnect - 3: 9567 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:9443 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9419 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9399 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:9373 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9351 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9321 
oyoroiConnect - 1: 9637 
Client successfully connected to server 
getPostData - 1: 9568 
getPostData - 2: 9530 
getPostData - 3: 9214 
getPostData - 4: 8956 
getPostData - 5: 9457 
oyoroiConnect - 2: 9309 
oyoroiConnect - 3: 9309 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:9185 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9161 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9141 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:9115 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:9093 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:9063 
oyoroiConnect - 1: 9379 
Client successfully connected to server 
getPostData - 1: 9310 
getPostData - 2: 9272 
getPostData - 3: 8956 
getPostData - 4: 8698 
getPostData - 5: 9199 
oyoroiConnect - 2: 9051 
oyoroiConnect - 3: 9051 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:8927 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8903 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8883 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:8857 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8835 
oyoroiConnect - 1: 9146 
Client successfully connected to server 
getPostData - 1: 9077 
getPostData - 2: 9039 
getPostData - 3: 8771 
getPostData - 4: 8513 
getPostData - 5: 8941 
oyoroiConnect - 2: 8827 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8480 
oyoroiConnect - 3: 8805 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:8645 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8625 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8599 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:8577 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8547 
oyoroiConnect - 1: 8863 
Client successfully connected to server 
getPostData - 1: 8794 
getPostData - 2: 8756 
getPostData - 3: 8440 
getPostData - 4: 8182 
getPostData - 5: 8683 
oyoroiConnect - 2: 8535 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8188 
oyoroiConnect - 3: 8513 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:8387 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8367 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8341 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:8319 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8289 
oyoroiConnect - 1: 8605 
Client successfully connected to server 
getPostData - 1: 8536 
getPostData - 2: 8498 
getPostData - 3: 8182 
getPostData - 4: 7924 
getPostData - 5: 8425 
oyoroiConnect - 2: 8277 
oyoroiConnect - 3: 8277 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8153 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:8129 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8109 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:8083 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:8061 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:8031 
oyoroiConnect - 1: 8347 
Client successfully connected to server 
getPostData - 1: 8278 
getPostData - 2: 8240 
getPostData - 3: 7924 
getPostData - 4: 7666 
getPostData - 5: 8167 
oyoroiConnect - 2: 8019 
oyoroiConnect - 3: 8019 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7895 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:7871 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:7851 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7825 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:7803 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:7773 
oyoroiConnect - 1: 8089 
Client successfully connected to server 
getPostData - 1: 8020 
getPostData - 2: 7982 
getPostData - 3: 7666 
getPostData - 4: 7408 
getPostData - 5: 7909 
oyoroiConnect - 2: 7761 
oyoroiConnect - 3: 7761 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7637 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:7613 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:7593 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7567 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:7545 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:7515 
oyoroiConnect - 1: 7831 
Client successfully connected to server 
getPostData - 1: 7762 
getPostData - 2: 7724 
getPostData - 3: 7408 
getPostData - 4: 7150 
getPostData - 5: 7651 
oyoroiConnect - 2: 7503 
oyoroiConnect - 3: 7503 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7379 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:7355 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:7335 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7309 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:7272 
oyoroiConnect - 1: 7583 
Client successfully connected to server 
getPostData - 1: 7514 
getPostData - 2: 7476 
getPostData - 3: 7211 
getPostData - 4: 6953 
getPostData - 5: 7378 
oyoroiConnect - 2: 7264 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6915 
oyoroiConnect - 3: 7254 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7094 
oyoroi.queue: scoutId:4 message:ph=4.28 free-memory:7072 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:7046 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:7024 
oyoroiConnect - 1: 7337 
Client successfully connected to server 
getPostData - 1: 7268 
getPostData - 2: 7231 
getPostData - 3: 6971 
getPostData - 4: 6713 
getPostData - 5: 7135 
oyoroiConnect - 2: 7021 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:6674 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6650 
oyoroiConnect - 3: 6977 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:6819 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:6793 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6771 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:6741 
oyoroiConnect - 1: 7057 
Client successfully connected to server 
getPostData - 1: 6988 
getPostData - 2: 6950 
getPostData - 3: 6634 
getPostData - 4: 6376 
getPostData - 5: 6877 
oyoroiConnect - 2: 6729 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:6382 
oyoroiConnect - 3: 6707 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6581 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:6561 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:6535 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6513 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:6483 
oyoroiConnect - 1: 6799 
Client successfully connected to server 
getPostData - 1: 6730 
getPostData - 2: 6692 
getPostData - 3: 6376 
getPostData - 4: 6118 
getPostData - 5: 6619 
oyoroiConnect - 2: 6471 
oyoroiConnect - 3: 6471 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:6347 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6323 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:6303 
oyoroi.queue: scoutId:4 message:ph=4.26 free-memory:6277 
oyoroi.queue: scoutId:3 message:ph=4.28 free-memory:6255 
oyoroi.queue: scoutId:2 message:ph=5.59 free-memory:6225 
oyoroiConnect - 1: 6541 
Client successfully connected to server 
getPostData - 1: 6472 
getPostData - 2: 6434 
getPostData - 3: 6118 
getPostData - 4: 5860 
getPostData - 5: 6361 
oyoroiConnect - 2: 6213 
oyoroiConnect - 3: 6213 
...

我真的不知道是什么导致了这种泄漏因此，如果任何人都可以想出一些建议，我会很感激你的帮助

来源

2014-09-01 Sparrowcide

最好的建议有人给我提供了资源受限的嵌入式系统是：

离开堆。

您可能没有泄漏记忆，您可能只是将其碎片化。你展示的程序是分配和释放FIFO队列上的结构。该模式运行稳健的可能性很小。当第二个对象被添加到堆并放入队列时，它已经将第一个对象掩埋在堆上。当Q的头部被处理时，代码确实删除（）第一个对象分配，但是在内存中留下一个空洞。如果第三个对象不能放入该孔中，那么该第三个对象将移动到未使用的空间。

对于任何您打算运行固定任务并希望永久运行的应用程序，请进行一次内存分配和重用。换句话说，没有操作系统或大型运行时库来支持您的应用程序：您必须管理内存。

分配N个固定池对象

struct OMessage { 
    int scoutId; 
    char message[50]; 
    int messageKey; 
}; 

const int sizePool = 10; 
OMessage pool[10]; 
int ixNext = 0; 
int ixHead = -1;

这个固定的分配，现在也是你的队列中。你管理头部和尾部。当您“添加”，反对队列，在结构填充和调整指标：

// detect full queue if ixNext = ixHead and reject addition 
pool[ixNext].scoutId = ... 
pool[ixNext].messageKey = ... 
ixNext += 1; 
ixNext = ixNext % sizePool;

当你从队列中“拉”和项目，你只需动指数：

if(ixHead >= 0) { 
    do something with pool[ixHead] 
    ixHead += 1; 
    ixHead = ixHead % sizePool; 
    // detect if head = tail and mark q empty 
}

随着固定的内存分配，只要你的程序启动，你可以肯定它永远不会用完内存。

来源

2014-09-01 22:15:20 jdr5ca

非常有见地 – Sparrowcide 2014-09-02 00:18:49

伟大的答案！ :) – ladislas 2014-09-02 06:33:04

Arduino内存泄漏

回答

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