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CC3235S: HTTP client API response timeout

Pradeep Patel
Intellectual 440 points
Part Number: CC3235S
Other Parts Discussed in Thread: SYSCONFIG

Hi,

I am using HTTP client example program from TI Simplelink SDK. I am downloading 4MB file size from HTTP server. This data is downloaded in chunk of 16KB. Hence API - HTTPClient_readResponseBody(httpClientHandle, data, sizeof(data),&moreDataFlag);  is called repeatedly.

However, if network is disconnected then I observe that my program get stuck in this API for 5 mins. I think this is default timeout. I want to reduce this timeout but can;t find how to do this? Can you please help me here on how to set this timeout to different value?

Thanks,

Pradeep

  • 0
    TI__Guru 63006 points

    What error code are you getting?

    Do you get async disconnection event in SimplelinkWlanEventHandler? just before the 5 minutes?

    Basically the http waits on receive socket without any timeout.

    You can update httpclient.c (e.g. in getChunkedData just befroe calling SlNetSock_recv) so it will configure the timeout using socket option.

    Once you will do this - you'll need to re-build the httpclient library and then the application.

        - SLNETSOCK_OPSOCK_RCV_TIMEO:
    \code
        struct SlNetSock_Timeval_t timeVal;
        timeVal.tv_sec =  1; // Seconds
        timeVal.tv_usec = 0; // Microseconds. 10000 microseconds resolution
        SlNetSock_setOpt(SockID, SLNETSOCK_LVL_SOCKET, SLNETSOCK_OPSOCK_RCV_TIMEO, (uint8_t *)&timeVal, sizeof(timeVal)); // Enable receive timeout
    \endcode
    <br>

  • 0 in reply to Kobi Leibovitch
    Intellectual 440 points

    No error code. The return value is 0.

    Yes, I get async disconnection event in SimplelinkWlanEventHandler as soon as network is disconnected. But API - HTTPClient_readResponseBody() get stuck and does not come out for 5 minutes. After 5 minutes it returns value as 0.

    How to build httpclient library? Is there any documentation?

  • 0 in reply to Pradeep Patel
    TI__Guru 63006 points

    See <SDK-ROOT>/docs/simplelink_mcu_sdk/Quick_Start_Guide.html (check the "build-core-libs" section).

    You should refer to the makefile under "<SDK-ROOT>/source/ti/net/" - that will build all the network services.

  • 0 in reply to Kobi Leibovitch
    Intellectual 440 points

    I tried building library and getting this error:

    D:\ti\simplelink_cc32xx_sdk_4_10_00_07\source\ti\net>d:\ti\xdctools_3_61_00_16_core\gmake.exe
    building packages ...
    xdctools_3_61_00_16_core\gmake.exe: *** [d:/ti/xdctools_3_61_00_16_core\packages\xdc\bld\xdc_top.mak:374: _startime] Error 127
    gmake: *** [makefile:49: all] Error 2

    I have already updated paths in imports.mak for tools path as below:

    XDC_INSTALL_DIR ?= d:/ti/xdctools_3_61_00_16_core
    SYSCONFIG_TOOL ?= d:/ti/ccs1120/ccs/utils/sysconfig_1.12.0/sysconfig_cli.bat

    FREERTOS_INSTALL_DIR ?= D:/Simplelink/FreeRTOSv202112.00

    CCS_ARMCOMPILER ?= d:/ti/ccs1120/ccs/tools/compiler/ti-cgt-arm_20.2.0.LTS
    GCC_ARMCOMPILER ?= c:/ti/ccs1000/ccs/tools/compiler/gcc-arm-none-eabi-9-2019-q4-major-win32
    IAR_ARMCOMPILER ?= c:/Program Files (x86)/IAR Systems/Embedded Workbench 8.4/arm

    Please suggest.

  • 0 in reply to Pradeep Patel
    TI__Guru 63006 points

    I'm not sure what is the issue (i'm using the latest SDK, CCS and XDC tools).

    Another option is that you copy the httpclient.c to your applicatiobn project and change (&build) it there. Once built the object file will override the content from the library. 

    (note that you may need to update the include path of the project).