[Freeswitch-users] Switch_curl
Anthony Minessale
anthony.minessale at gmail.com
Thu Mar 17 07:25:54 MSK 2016
Via one of the exposed interfaces like api interface etc.
Why do you need mod_curl and native curl at the same time?
On Wednesday, March 16, 2016, Chris Mandra <mandra at gmail.com> wrote:
> Thanks for the responses guys. I have another question: I need to call
> mod_curl api from my module. What's the proper way to call a module from a
> module?
> thanks, chris
>
> On Wed, Mar 16, 2016 at 4:54 PM, Anthony Minessale <
> anthony.minessale at gmail.com
> <javascript:_e(%7B%7D,'cvml','anthony.minessale at gmail.com');>> wrote:
>
>> If you use more threads you just need to make sure the objects are
>> properly scoped. For instance, if you want to use a session from the other
>> thread you need to read lock it for the life of the thread. Objects shared
>> need to be dynamically allocated and properly mutexed etc.
>>
>> Whatever thread you call curl from will be used for the whole
>> curl operation.
>>
>>
>> On Wednesday, March 16, 2016, Michael Jerris <mike at jerris.com
>> <javascript:_e(%7B%7D,'cvml','mike at jerris.com');>> wrote:
>>
>>> depends on your needs. The concern would be trying to access those
>>> objects across threads potentially could cause issues depending on if they
>>> are syncronized or not, easier to just not do it and not have the concern.
>>> Anthony is suggesting looking at how we do it in other places. Life cycle
>>> could be an issue, are you destroying things too early?
>>>
>>> On Mar 16, 2016, at 5:00 AM, Chris Mandra <mandra at gmail.com> wrote:
>>>
>>> Thanks for responding Anthony. Can you tell me this:
>>> Should curl calls be done in separate thread or is it ok to do them in
>>> the main thread of modules?
>>> On Tuesday, March 15, 2016, Chris Mandra <mandra at gmail.com> wrote:
>>>
>>>>
>>>> Should curl calls be done in separate thread or is it ok to do them in
>>>> the main thread of modules?
>>>> On Tuesday, March 15, 2016, Anthony Minessale <
>>>> anthony.minessale at gmail.com> wrote:
>>>>
>>>>> Curl is used in a few places and is not unstable. Study some of those
>>>>> mods and maybe you can see how to use it in a typical situation. Probably
>>>>> its related to memory management or lifecycle of objects you may be using.
>>>>>
>>>>> On Tuesday, March 15, 2016, Chris Mandra <mandra at gmail.com> wrote:
>>>>>
>>>>>> Hey guys, I'm working on a simple media bug module using FS 1.6. When
>>>>>> a call comes in I'm calling switch_curl doing an http get.
>>>>>>
>>>>>> In switch_standard_app I use switch_curl and invoke
>>>>>> switch_curl_easy_perform and exit after that.
>>>>>>
>>>>>> Calling switch_curl seems very unstable. It's crashing free switch
>>>>>> most of the time. Are there any things I should be looking for related to
>>>>>> this? I'm wondering if maybe this is a threading issue? Any ideas?
>>>>>> I've included some backtraces
>>>>>>
>>>>>> Thanks, chris
>>>>>>
>>>>>>
>>>>>> (gdb) bt
>>>>>>
>>>>>> #0 0x00007f8f00c59cc9 in __GI_raise (sig=sig at entry=6) at
>>>>>> ../nptl/sysdeps/unix/sysv/linux/raise.c:56
>>>>>>
>>>>>> #1 0x00007f8f00c5d0d8 in __GI_abort () at abort.c:89
>>>>>>
>>>>>> #2 0x00007f8f00c96394 in __libc_message (do_abort=do_abort at entry=1,
>>>>>> fmt=fmt at entry=0x7f8f00da4b28 "*** Error in `%s': %s: 0x%s ***\n") at
>>>>>> ../sysdeps/posix/libc_fatal.c:175
>>>>>>
>>>>>> #3 0x00007f8f00ca266e in malloc_printerr (ptr=<optimized out>,
>>>>>> str=0x7f8f00da0c19 "free(): invalid pointer", action=1) at malloc.c:4996
>>>>>>
>>>>>> #4 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at
>>>>>> malloc.c:3840
>>>>>>
>>>>>> #5 0x00007f8f01334567 in switch_log_node_free (pnode=pnode at entry=0x7f8eb2b1f158)
>>>>>> at src/switch_log.c:136
>>>>>>
>>>>>> #6 0x00007f8eeb192a24 in read_packet (listener=listener at entry=0x7f8ebc027898,
>>>>>> event=event at entry=0x7f8eb2b1f7f0, timeout=timeout at entry=0) at
>>>>>> mod_event_socket.c:1361
>>>>>>
>>>>>> #7 0x00007f8eeb1988a0 in listener_run (thread=<optimized out>,
>>>>>> obj=0x7f8ebc027898) at mod_event_socket.c:2719
>>>>>>
>>>>>> #8 0x00007f8f01544430 in dummy_worker (opaque=0x7f8eb2be4868) at
>>>>>> threadproc/unix/thread.c:151
>>>>>>
>>>>>> #9 0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2b20700) at
>>>>>> pthread_create.c:312
>>>>>>
>>>>>> #10 0x00007f8f00d1d47d in clone () at
>>>>>> ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>>>>>>
>>>>>>
>>>>>> *[*
>>>>>> <https://soniccloud.slack.com/archives/D02UEC39S/p1458078254000027>
>>>>>>
>>>>>> 5:44
>>>>>> <https://soniccloud.slack.com/archives/D02UEC39S/p1458078254000027>
>>>>>>
>>>>>> *]*
>>>>>> <https://soniccloud.slack.com/archives/D02UEC39S/p1458078254000027>
>>>>>>
>>>>>> (gdb) bt full
>>>>>>
>>>>>> #0 0x00007f8f00c59cc9 in __GI_raise (sig=sig at entry=6) at
>>>>>> ../nptl/sysdeps/unix/sysv/linux/raise.c:56
>>>>>>
>>>>>> resultvar = 0
>>>>>>
>>>>>> pid = 18329
>>>>>>
>>>>>> selftid = 18421
>>>>>>
>>>>>> #1 0x00007f8f00c5d0d8 in __GI_abort () at abort.c:89
>>>>>>
>>>>>> save_stage = 2
>>>>>>
>>>>>> act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction =
>>>>>> 0x0}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer
>>>>>> = 0x0}
>>>>>>
>>>>>> sigs = {__val = {32, 0 <repeats 15 times>}}
>>>>>>
>>>>>> #2 0x00007f8f00c96394 in __libc_message (do_abort=do_abort at entry=1,
>>>>>> fmt=fmt at entry=0x7f8f00da4b28 "*** Error in `%s': %s: 0x%s ***\n") at
>>>>>> ../sysdeps/posix/libc_fatal.c:175
>>>>>>
>>>>>> ap = {{gp_offset = 40, fp_offset = 32654, overflow_arg_area =
>>>>>> 0x7f8eb2b1f010, reg_save_area = 0x7f8eb2b1efa0}}
>>>>>>
>>>>>> fd = 2
>>>>>>
>>>>>> on_2 = <optimized out>
>>>>>>
>>>>>> list = <optimized out>
>>>>>>
>>>>>> nlist = <optimized out>
>>>>>>
>>>>>> cp = <optimized out>
>>>>>>
>>>>>> written = <optimized out>
>>>>>>
>>>>>> #3 0x00007f8f00ca266e in malloc_printerr (ptr=<optimized out>,
>>>>>> str=0x7f8f00da0c19 "free(): invalid pointer", action=1) at malloc.c:4996
>>>>>>
>>>>>> buf = "00007f8ed0036700"
>>>>>>
>>>>>> cp = <optimized out>
>>>>>>
>>>>>> #4 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at
>>>>>> malloc.c:3840
>>>>>>
>>>>>> size = <optimized out>
>>>>>>
>>>>>> fb = <optimized out>
>>>>>>
>>>>>> nextchunk = <optimized out>
>>>>>>
>>>>>> nextsize = <optimized out>
>>>>>>
>>>>>> nextinuse = <optimized out>
>>>>>>
>>>>>> prevsize = <optimized out>
>>>>>>
>>>>>> bck = <optimized out>
>>>>>>
>>>>>> fwd = <optimized out>
>>>>>>
>>>>>> errstr = <optimized out>
>>>>>>
>>>>>> locked = <optimized out>
>>>>>>
>>>>>> #5 0x00007f8f01334567 in switch_log_node_free (pnode=pnode at entry=0x7f8eb2b1f158)
>>>>>> at src/switch_log.c:136
>>>>>>
>>>>>> node = 0x7f8ed8012ab0
>>>>>>
>>>>>> #6 0x00007f8eeb192a24 in read_packet (listener=listener at entry=0x7f8ebc027898,
>>>>>> event=event at entry=0x7f8eb2b1f7f0, timeout=timeout at entry=0) at
>>>>>> mod_event_socket.c:1361
>>>>>>
>>>>>> dnode = 0x7f8ed8012ab0
>>>>>>
>>>>>> do_sleep = <optimized out>
>>>>>>
>>>>>> mlen = 0
>>>>>>
>>>>>> bytes = 0
>>>>>>
>>>>>> mbuf = 0x7f8ecc1ebfc0 ""
>>>>>>
>>>>>> buf = "Content-Type: log/data\nContent-Length: 88\nLog-Level:
>>>>>> 7\nText-Channel: 3\nLog-File: param_hps_strategy.cpp\nLog-Func:
>>>>>> retrieve\nLog-Line: 115\nUser-Data: \347@
>>>>>> \247\a\n\n\000\n\n\000\065-418f-a6d1-9dc8f48e0cf9\n\n\000\000\071\n\n\000c8f48e0cf9"...
>>>>>>
>>>>>> len = 88
>>>>>>
>>>>>> status = SWITCH_STATUS_BREAK
>>>>>>
>>>>>> count = 0
>>>>>>
>>>>>> elapsed = <optimized out>
>>>>>>
>>>>>> start = 1457966137
>>>>>>
>>>>>> pop = 0x7f8ed8012ab0
>>>>>>
>>>>>> ptr = 0x7f8ecc1ebfc0 ""
>>>>>>
>>>>>> crcount = 0 '\000'
>>>>>>
>>>>>> buf_len = 2048
>>>>>>
>>>>>> channel = 0x0
>>>>>>
>>>>>> clen = 0
>>>>>>
>>>>>> __PRETTY_FUNCTION__ = "read_packet"
>>>>>>
>>>>>> __func__ = "read_packet"
>>>>>>
>>>>>> #7 0x00007f8eeb1988a0 in listener_run (thread=<optimized out>,
>>>>>> obj=0x7f8ebc027898) at mod_event_socket.c:2719
>>>>>>
>>>>>> listener = 0x7f8ebc027898
>>>>>>
>>>>>> buf = '\000' <repeats 1023 times>
>>>>>>
>>>>>> len = 1024
>>>>>>
>>>>>> status = <optimized out>
>>>>>>
>>>>>> event = 0x0
>>>>>>
>>>>>> reply = "\000OK log level [7]", '\000' <repeats 493 times>
>>>>>>
>>>>>> session = 0x0
>>>>>>
>>>>>> channel = 0x0
>>>>>>
>>>>>> revent = 0x0
>>>>>>
>>>>>> var = <optimized out>
>>>>>>
>>>>>> locked = 1
>>>>>>
>>>>>> __PRETTY_FUNCTION__ = "listener_run"
>>>>>>
>>>>>> __func__ = "listener_run"
>>>>>>
>>>>>> #8 0x00007f8f01544430 in dummy_worker (opaque=0x7f8eb2be4868) at
>>>>>> threadproc/unix/thread.c:151
>>>>>>
>>>>>> thread = 0x7f8eb2be4868
>>>>>>
>>>>>> #9 0x00007f8f00ff0182 in start_thread (arg=0x7f8eb2b20700) at
>>>>>> pthread_create.c:312
>>>>>>
>>>>>> __res = <optimized out>
>>>>>>
>>>>>> pd = 0x7f8eb2b20700
>>>>>>
>>>>>> now = <optimized out>
>>>>>>
>>>>>> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140250860095232,
>>>>>> -640791540281233069, 0, 0, 140250860095936, 140250860095232,
>>>>>> 578173923610734931, 577994035108262227}, mask_was_saved = 0}}, priv = {pad
>>>>>> = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>>>>>>
>>>>>> not_first_call = <optimized out>
>>>>>>
>>>>>> pagesize_m1 = <optimized out>
>>>>>>
>>>>>> sp = <optimized out>
>>>>>>
>>>>>> freesize = <optimized out>
>>>>>>
>>>>>> __PRETTY_FUNCTION__ = "start_thread"
>>>>>>
>>>>>> #10 0x00007f8f00d1d47d in clone () at
>>>>>> ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>>>>>>
>>>>>> No locals
>>>>>>
>>>>>
>>>>>
>>>
>>
>> --
>> Anthony Minessale II ♬ @anthmfs ♬ @FreeSWITCH ♬
>>
>> ☞ http://freeswitch.org/ ☞ http://cluecon.com/ ☞
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>>
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>
>
>
> --
> mandra
> c:410.258.5281
>
--
Anthony Minessale II ♬ @anthmfs ♬ @FreeSWITCH ♬
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