错误：host_buffer_release（）中的缓冲区断言无效

当在检查连接的RSSI和噪声的调试器中运行WICDE 60.1代码时，当我取下正在连接的访问点时，我遇到了一个“错误：无效缓冲区”断言的问题。为了确保它不是我正在使用的非常复杂的代码中的一个bug，我使用SNIP.UdpStand复制了这个问题。错误是在WWDIWiFixGEtiOCiTLL BuffER（）中[43XXXWi-Fi/WICD/WWD/NET/WWDWiWiF.C]。当返回WSDJTimeUT时，“响应”缓冲区为NULL，但尽管如此，它仍然被释放。它不应该被释放，因为它不存在。
WWDJRESULTTWT WWDWIWIFIGETGETIOCLTL缓冲（UIT32），IUCT8*T*OUTHORD缓冲区，UTI1616T超长，WWDI接口接口
{
WICEDED缓冲液缓冲液；
UTIT32×T*数据；
WieDeff-Fuffelt反应；
WWD结果；
数据=（UTI32×T*）WWDJSDPCMGETGETIOIOLTL缓存（缓冲器，OutOthLoad）；
校验-缓冲（数据）；
结果= WWDJSDPCMysEndoiIOCTL（SDPCMYGET，IOCTL，缓冲器，和响应，接口）；/*有任何情况下，当响应为非空时，将返回一个错误？*/
*它工作：将结果复制到输出缓冲区*/
如果（WWDJ成功＝＝结果）
{
数据＝（UTI32×T*）HoST.BuffryGETHOL.CurrthyTabeODATA指针（响应）；
MEMCPY（OutOx缓冲区，数据，OutOthLoad）；
}
HoothBuffelx发布（响应，WWDJNETWorksRx）；/*这条线是否只在WWDY成功上执行？*/
返回结果；
}
为了生成这个错误，我对UdpSimult.c进行了一些微小的更改，并使用了WiFixCuffixDCT.h中的CclipTyAppssid和PaspHaseh，然后根据指令构建并运行剪辑。当它运行时，我拔出了接入点。大约过了一分钟，断言发生了。我已经附加了一个复制的UPDPix.c代码的副本。
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     以下为原文
  When running WICED 6.0.1 code in the debugger that was checking the RSSI and noise of a connection I ran into problems with an "Error: Invalid buffer" assert when I took down the access point to which I was connecting. To make sure it wasn't a bug in the very complicated code that I was working with, I reproduced the problem using snip.udp_transmit. The bug is in wwd_wifi_get_ioctl_buffer() [43xxx_Wi-Fi/WICED/WWD/internal/wwd_wifi.c]. When WWD_TIMEOUT is returned, the "response" buffer is NULL, but it gets released in spite of that. It shouldn't be released, because it doesn't exist.

wwd_result_t wwd_wifi_get_ioctl_buffer( uint32_t ioctl, uint8_t* out_buffer, uint16_t out_length, wwd_interface_t interface )
{

    wiced_buffer_t buffer;
    uint32_t*      data;
    wiced_buffer_t response;
    wwd_result_t result;

    data = (uint32_t*) wwd_sdpcm_get_ioctl_buffer( &buffer, out_length );
    CHECK_IOCTL_BUFFER( data );

    result = wwd_sdpcm_send_ioctl( SDPCM_GET, ioctl, buffer, &response, interface );/*Are there any cases where an error would be returned where response would be non-NULL?*/

    /* it worked: copy the result to the output buffer */
    if ( WWD_SUCCESS == result )
    {
        data = (uint32_t*) host_buffer_get_current_piece_data_pointer( response );
        memcpy( out_buffer, data, out_length );
    }

    host_buffer_release( response, WWD_NETWORK_RX ); /*Should this line be only executed on WWD_SUCCESS?*/

    return result;
}

To generate this error I made some minor changes to udp_transmit.c and used my CLIENT_AP_SSID & PASSPHRASE in wifi_config_dct.h. Then I built and ran the snip according to the instructions. While it was running I unplugged the access point. After a minute or so the assert occurred. I have attached a copy of the udp_transmit.c code I modified.

•   udp_transmit.c.zip 3.5 K