D12230: [WIP] Adjust socket buffer sizes on FreeBSD

[Adriaan de Groot]

adridg created this revision.
adridg added a reviewer: dvratil.
Restricted Application added a project: KDE PIM.
Restricted Application added a subscriber: KDE PIM.
adridg requested review of this revision.

REVISION SUMMARY
  The default socket buffer size on FreeBSD is 8192, while it is much 
  larger on Linux. It seems that the small socket buffer is what causes
  the "world is going to end" problems with communicating over the local
  sockets with Akonadi.
  
  There are two approaches possible:
  
  - change the system default socket buffer size (there's a sysctl for it)
  - change the socket buffer size for Akonadi
  
  This -- right now still kinda hacky and debuggerish -- patch changes the
  socket size on connect and on creation, for Akonadi clients and the server.
  It uses 64kibyte socket buffers.

TEST PLAN
  With this patch, "akonadictl start" no longer complains about the world
  ending. KMail can connect to the Akonadi server and read more than one
  mailbox. Without the patch, changing the system default socket buffer
  size does it, too.

REPOSITORY
  R165 Akonadi

BRANCH
  freebsd-socketsize

REVISION DETAIL
  https://phabricator.kde.org/D12230

AFFECTED FILES
  src/core/connection.cpp
  src/server/aklocalserver.cpp
  src/server/aklocalserver.h
  src/server/connection.cpp

To: adridg, dvratil
Cc: tcberner, #kde_pim, dvasin, winterz, vkrause, mlaurent, knauss, dvratil
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