[sr-dev] [kamailio/kamailio] Non blocking async socket (#1654)

Federico Cabiddu notifications at github.com
Thu Sep 27 14:01:29 CEST 2018

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#### Description
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Operations performed in async workers can be blocking (e.g. DB inserts). Sometimes, under high load, this can lead the unix socket queues to be full, thus blocking the main workers. With this new parameter we can have the choice to open the socket pair in non blocking mode, so returning an error if the task cannot be sent to the async workers.
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-- Commit Summary --

  * core: new parameter async_nonblock
  * async,db_mysql,db_unixodbc: return -1 and free memory if sending task to the async worker fails

-- File Changes --

    M src/core/async_task.c (16)
    M src/core/async_task.h (1)
    M src/core/cfg.lex (2)
    M src/core/cfg.y (3)
    M src/modules/async/async_sleep.c (7)
    M src/modules/db_mysql/km_dbase.c (5)
    M src/modules/db_unixodbc/dbase.c (6)

-- Patch Links --


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