[licq-im/licq] fd62d3: licq: Drop log messages instead of deadlocking

  Branch: refs/heads/1.7-stable
  Home:   https://github.com/licq-im/licq
  Commit: fd62d36e80093a4e39c2266d4b77e4a138e9c2be
      https://github.com/licq-im/licq/commit/fd62d36e80093a4e39c2266d4b77e4a138e9c2be
  Author: Anders Olofsson <[email protected]>
  Date:   2013-01-12 (Sat, 12 Jan 2013)

  Changed paths:
    M licq/include/licq/pipe.h
    M licq/src/logging/pluginlogsink.cpp
    M licq/src/utils/pipe.cpp

  Log Message:
  -----------
  licq: Drop log messages instead of deadlocking

If something starts flooding log messages faster than a sink can
process them, the pipe in PluginLogSink will fill up and cause the
sender to block. The pipe is written while mutexes are held, this will
cause a deadlock as the log sinks need to take the same mutex to read
the pipe.

This deadlock could also be resolved by releasing the mutex in
PluginLogSink before accessing the pipe. However, the caller
(LogDistributor) also has a mutex for all the sinks which could also
deadlock if another source tries to log something at the same time, and
even if that is solved the second source would just hang on writing to
the pipe.


  Commit: 99b6f98517ff5b3a99e2ef6e036c8098f7d0afe0
      https://github.com/licq-im/licq/commit/99b6f98517ff5b3a99e2ef6e036c8098f7d0afe0
  Author: Anders Olofsson <[email protected]>
  Date:   2013-01-12 (Sat, 12 Jan 2013)

  Changed paths:
    M licq/src/icq/icq-srv.cpp

  Log Message:
  -----------
  icq: Don't fail on buddy icon hash longer than 16


  Commit: dd9c41c4beb7196f06b75e0192722667bbe111bd
      https://github.com/licq-im/licq/commit/dd9c41c4beb7196f06b75e0192722667bbe111bd
  Author: Anders Olofsson <[email protected]>
  Date:   2013-01-14 (Mon, 14 Jan 2013)

  Changed paths:
    M licq/src/contactlist/userhistory.cpp

  Log Message:
  -----------
  licq: Don't break on empty line in history file


  Commit: 94c5ce5e43c59a9bead90cd1c44bba92ed0f7c1e
      https://github.com/licq-im/licq/commit/94c5ce5e43c59a9bead90cd1c44bba92ed0f7c1e
  Author: Anders Olofsson <[email protected]>
  Date:   2013-01-14 (Mon, 14 Jan 2013)

  Changed paths:
    M licq/src/userevents.cpp

  Log Message:
  -----------
  licq: Replace newlines before writing history


Compare: https://github.com/licq-im/licq/compare/12c8f4b0bc83...94c5ce5e43c5