Solution: Use cmake's libdir variable to ensure that the pkgconfig file
ends up in the correct lib/lib64 directory. This matches the autotools
behaviour.
Solution: ignore tautological-constant-compare warnings, as they
might be useless on 64 bit but they are not on 32 bit where sizeof
size_t != sizeof uint64_t
Problem: When building libzmq with CMake, the installed libzmq.dylib
has a relative install name (otool -D libzmq.dylib) on MacOS. This
is a regression against building via autotools which sets an
absolute install name. Effectively, the CMake built libzmq.dylib
is rendered useless if installed in non-system directories and
used in environments without explicit DYLD_LIBRARY_PATH mgmt. For
example running any of the installed executables currently fails:
$ /some_install_prefix/bin/inproc_lat
dyld: Library not loaded: libzmq.5.dylib
Referenced from: /some_install_prefix/bin/inproc_lat
Reason: image not found
Trace/BPT trap: 5
Solution: Best practice is to install relocatable dylibs.
On MacOS this means setting an install name with a special prefix,
e.g. @rpath/libzmq.dylib, and adding the relevant search paths
to the embedded rpath list. In this patch the necessary CMake options
are added to generate the desired relocatable dylibs. Find more
information on: https://cmake.org/Wiki/CMake_RPATH_handling.
Solution: revert the revert!
Revert "Problem: regression in 4.2.3 went unnoticed, want to release 4.2.5"
This reverts commit 5f17e26fa4c60c3de0282d1b6ad1e8b7037ed57a.
Solution: remove objects optimisation in library build (similar to #2860)
and set PUBLIC compile definitions on all static builds instead of MSVC
only.
Solution: change case of `WinSock2.h Iphlpapi.h Rpc.h` to match the
files on disk. This is only noticeable when cross-compiling from a
case-sensitive system so wouldn't get picked up in MSVC or mingw
builds running on a windows machine.
MSDN uses capitalised versions in prose and lowercase in code examples:
https://msdn.microsoft.com/en-us/library/windows/desktop/ms737629(v=vs.85).aspxFixes#2978, the missing library message is a little misleading.
This fixes an error with the cmake install configuration, which
attempted an invalid copy of a .pdb file on windows, when the
BUILD_SHARED option is disabled.
Solution: revert the objects optimisation, and go back to building
everything twice on Windows, as the static builds needs different
preprocessor definitions from the shared one, so the objects have to be
rebuilt.
Keep the optimisation for all the other platforms.
Fixes#2858
* Background thread scheduling
- add ZMQ_THREAD_AFFINITY ctx option; set all thread scheduling options
from the context of the secondary thread instead of using the main
process thread context!
- change ZMQ_THREAD_PRIORITY to support setting NICE of the background
thread when using SCHED_OTHER
Linux now supports Virtual Routing and Forwarding (VRF) as per:
https://www.kernel.org/doc/Documentation/networking/vrf.txt
In order for an application to bind or connect to a socket with an
address in a VRF, they need to first bind the socket to the VRF device:
setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, dev, strlen(dev)+1);
Note "dev" is the VRF device, eg. VRF "blue", rather than an interface
enslaved to the VRF.
Add a new socket option, ZMQ_BINDTODEVICE, to bind a socket to a device.
In general, if a socket is bound to a device, eg. an interface, only
packets received from that particular device are processed by the socket.
If device is a VRF device, then subsequent binds/connects to that socket
use addresses in the VRF routing table.
