[asterisk-dev] Who can explain this? chanzap zt_fixup / zt_indicate

[Paulo Garcia]

Hi,

I'm trying to figure out how it works without a deadlock...

The zt_fixup function do a mutex_lock using p->lock handler.
(ast_mutex_lock(&p->lock);)

Within the mutex block, the zt_indicate function can be called:

    if (newchan->_state == AST_STATE_RINGING)
        zt_indicate(newchan, AST_CONTROL_RINGING);

But, within zt_indicate function, the ast_mutex_lock(&p->lock); is called
again.

Is this correct?


Thanks in advance

Paulo
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