CC3220S中的MQTT demo 程序中的client thread 竟然创建失败？

convex j

Prodigy 210 points

Other Parts Discussed in Thread: CC3220S, SYSBIOS

用 mqtt_client_CC3220S_LAUNCHXL_tirtos_ccs sample 程序。

在mainthread中，用malloc 分配了一个11KB的内存块，mqtt client创建、运行正常。

但是，增大到16KB 就失败。

此时，串口打印的消息如下：

Client Thread Create Failed failed
MQTT Client lib initialization failed

这是什么原因? 改回11KB 后恢复正常。TI RTOS 默认的heapSize设置太小?

经查看，是如下函数返回值有误。

lRetVal |= pthread_create(&g_rx_task_hndl, &pAttrs, MqttClientThread,
(void *) &threadArg);
if(lRetVal != 0)
{
UART_PRINT("Client Thread Create Failed failed\n\r");
gInitState &= ~CLIENT_INIT_STATE;
return(-1);
}

7 年多前

0 Viki Shi 7 年多前

TI__Guru**** 188340 points

看一下这边的heap size 要求：processors.wiki.ti.com/.../Stack_and_Heap_size_requirements

0 convex j 7 年多前回复 Viki Shi

Prodigy 210 points

谢谢指导！但是，链接里描述的是基于CCS4的设置方法，现在我用的是CCS8.1 ，依然没找到在哪里可设置这个线程的 heapSize？

0 convex j 7 年多前回复 convex j

Prodigy 210 points

尝试在mqtt 配到的 release.cfg文件中增加：
heapMemParams.size = 18432; // 默认是 4096
问题依然： 11KB 能工作，16KB失败。难道不是heapSize的问题？

/* ================ Memory configuration ================ */
var Memory = xdc.useModule('xdc.runtime.Memory');
/*
* The Memory module itself simply provides a common interface for any
* variety of system and application specific memory management policies
* implemented by the IHeap modules(Ex. HeapMem, HeapBuf).
*/

/*
* Use HeapMem primary heap instance to use linker-defined memory region
* Add HeapTrack on top to find over-writes, invalid frees, and
* aid in finding the correct sizing of the heap and memory leaks.
*/
var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem');
HeapMem.primaryHeapBaseAddr = "&__primary_heap_start__";
HeapMem.primaryHeapEndAddr = "&__primary_heap_end__";

var heapMemParams = new HeapMem.Params();
heapMemParams.usePrimaryHeap = true;

heapMemParams.size = 18432;

Program.global.heap0 = HeapMem.create(heapMemParams);

Memory.defaultHeapInstance = Program.global.heap0;