[Libwebsockets] Exception when trying to start uv_timer_start in libwebsockets libuv example

Meir Yanovich meiry242 at gmail.com
Thu Jul 21 09:13:59 CEST 2016


Please Ignore my question , the libwebsockets looks like working fine with
the libuv general framework .

On Thu, Jul 21, 2016 at 9:19 AM, Meir Yanovich <meiry242 at gmail.com> wrote:

> Hello
> Im using the libuv and libsockets example , and i try to start new timer
> to work in parallel with the lws loop . im don't realy know if i do it
> right and if there is any problem any way this is what i did
> Because the libuv uv_timer_start  mechanism needs the uv_loop_t* loop
> i checked how it is implemented inside the lws_uv_initloop . and did this
> :
>
> #include "private-libwebsockets.h"
> ....
> ....
>
> loop = lws_malloc(sizeof(*loop));
> loop_r = uv_loop_init(loop);
> uv_timer_init(loop, &timeout);
> if (lws_uv_initloop(context, loop, 0)) {
> lwsl_err("lws_uv_initloop failed\n");
>
> goto bail;
> }
> lwsl_notice("server started\n");
>
> r = uv_timer_start(&timer_handle, &timer_cb, 0, 0);   // HERE IS THE
> EXCEPTION
> lws_libuv_run(context, 0);
>
>
> But when it Reaches to uv_timer_start it throw exception
> which looks like this :
>
> First-chance exception at 0x00D55919 in
> libuv_libwebsocket_cocos2dx_server.exe: 0xC0000005: Access violation
> reading location 0x00000024.
> Unhandled exception at 0x00D55919 in
> libuv_libwebsocket_cocos2dx_server.exe: 0xC0000005: Access violation
> reading location 0x00000024.
>
> And if i try to debug it it thrown from libuv : timer.c  line 102
> in uv_timer_start
> in this line :  handle->due = get_clamped_due_time(loop->time, timeout);
>
> can you please clarify if it is related to the lws or not ?
> Thanks
>
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