Memory leak

[cjevans76]

Is there a worked example for periodically sending data from the yun up to parse? I tried the code below, but the board froze after a while. I used FreeMemory to look at the available memory and this seems to be the problem. I suspect I'm just not clearing the ParseCreate object correctly. Any tips?

include <Bridge.h>

include <Parse.h>

include <MemoryFree.h>

define INTERVAL 60000 // one minute in ms

ParseClient client;
static unsigned long lTimer;
void setup() {
// put your setup code here, to run once:

// Initialize digital pin 13 as an output.
pinMode(13, OUTPUT);

// Initialize Bridge
Bridge.begin();

// Initialize Parse
client.begin("MY_KEY1", "MY_KEY2");

// initialise minute timer
lTimer = millis();

// Initialize Serial
Serial.begin(9600);
Serial.println("Initialised");
}

void loop() {
// timer
if ( (long)( millis() - lTimer ) >= 0)
{
lTimer += INTERVAL; // do it again 1 interval later
//periodic actions

// print memory state
Serial.print("freeMemory()=");
Serial.println(freeMemory());

// create and fill parse object
ParseObjectCreate create;
create.setClassName("TestData");
create.add("tStk", 550);
create.add("iPwrFc", 9.1);

// send data and get response
ParseResponse response = create.send();

// display response status
Serial.println("\nResponse for saving LogData:");
Serial.print(response.getJSONBody());
if (!response.getErrorCode()) {
  String objectId = response.getString("objectId");
  Serial.print("Test object id:");
  Serial.println(objectId);
} else {
  Serial.println("Failed to save the log data");
}
response.close();

}
}

[ronaldyang]

@cjevans76 Thanks for submitting the issue. We are looking at this problem. Please stay tuned.

[cjevans76]

For reference, the available memory seems to decrease every 15 or so loops round, not every loop. So with a minute between loops, it takes c. 15 minutes to see a drop in memory and c. an hour for the system to run out of memory altogether.

[ronaldyang]

@cjevans76 The fix is in this commit aae4cb3
Let us know if the problem is still existing with this fix.

[cjevans76]

@ronaldyang Thanks. I'll have a look this evening and let you know.

[cjevans76]

Looks good so far (albeit with limited testing). I'll leave it running overnight to get a bit more data.
Thanks for the quick turn-around.

[cjevans76]

Still running after 10 hours so looks fixed.

[ronaldyang]

Sounds good. Closing this issue.

[oms5]

Please update the Starter Project Link with this fix in the Quick Start guide.