CJSON failing to print via cJSON_Print()

RE: CJSON failing to print via cJSON_Print()

Mike Austin (LPI) — Thu, 25 May 2023 00:42:42 GMT

Hi Håkon,

So, the cJSON_Init() issue was because I'd not added CONFIG_HEAP_MEM_POOL_SIZE to my prj.conf file.

And no - I hadn't been calling cJSON_FreesString(). I'd only been calling cJSON_Delete() once I'd completed creating the cJSON object and getting my char * to point to it. I'd incorrectly assumed it was recycling the memory for the char *, but obviously that wasn't the case and I was running into memory leak issues.

Anyway, I've fixed the problem by allocating ~ 4kB of Heap memory and free-ing up the string after each time I've sent that string over BLE and I'm able to get 200+ log file elements sent across without problems now.

Thanks for helping me sort out my issue.

Cheers,

Mike

RE: CJSON failing to print via cJSON_Print()

Håkon Alseth — Mon, 22 May 2023 14:06:24 GMT

Hi,

Are you calling "cJSON_FreeString()" when you're done with the strings?

[quote user=""]I've read in a few posts the need to make a call to cJSON_Init() in my main, but the moment I add that, I get a compile error that says:[/quote]

Are you including this?

#include <zephyr/kernel.h>

Kind regards,

Håkon

RE: CJSON failing to print via cJSON_Print()

Håkon Alseth — Mon, 22 May 2023 14:06:21 GMT

Hi,

Are you calling "cJSON_FreeString()" when you're done with the strings?

[quote user=""]I've read in a few posts the need to make a call to cJSON_Init() in my main, but the moment I add that, I get a compile error that says:[/quote]

Are you including this?

#include <zephyr/kernel.h>

Kind regards,

Håkon

RE: CJSON failing to print via cJSON_Print()

Mike Austin (LPI) — Fri, 19 May 2023 21:52:14 GMT

Thanks for letting me know Edvin

Regards,

Mike

RE: CJSON failing to print via cJSON_Print()

Edvin — Fri, 19 May 2023 12:15:11 GMT

Hello,
I am sorry, but we are short staffed this week due to Public Holidays in Norway. We will be back on Monday 22nd and hope to be able to answer all incoming requests within a couple of days, depending on the backlog. I am sorry for the inconvenience.

Best regards,
Edvin