mirror of
https://github.com/zeromq/libzmq.git
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36e4c9b474
zmq_ppoll mostly mimics zmq_poll behavior, except for the added feature of being able to specify a signal mask. Signals in this mask will be blocked during execution of zmq_ppoll. Switching of the process' active signal mask happens atomically with the actual poll call, so that no race conditions can occur. This behavior is useful when one wants to gracefully handle POSIX signals without race conditions. See e.g. the discussion below https://250bpm.com/blog:12/ for an explanation. Also includes two new tests: 1. test_zmq_ppoll_fd does the same thing as test_zmq_poll_fd, demonstrating backwards compatibility with zmq_poll when used with a default signal mask. 2. test_zmq_ppoll_signals demonstrates the use of zmq_ppoll with a signal mask, blocking out SIGTERM everywhere except in zmq_ppoll, allowing to handle the signal in one place without having to worry about race conditions.
145 lines
3.2 KiB
C++
145 lines
3.2 KiB
C++
#ifndef __ZMQ_PLATFORM_HPP_INCLUDED__
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#define __ZMQ_PLATFORM_HPP_INCLUDED__
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#cmakedefine ZMQ_USE_CV_IMPL_STL11
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#cmakedefine ZMQ_USE_CV_IMPL_WIN32API
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#cmakedefine ZMQ_USE_CV_IMPL_PTHREADS
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#cmakedefine ZMQ_USE_CV_IMPL_NONE
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#cmakedefine ZMQ_IOTHREAD_POLLER_USE_KQUEUE
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#cmakedefine ZMQ_IOTHREAD_POLLER_USE_EPOLL
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#cmakedefine ZMQ_IOTHREAD_POLLER_USE_EPOLL_CLOEXEC
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#cmakedefine ZMQ_IOTHREAD_POLLER_USE_DEVPOLL
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#cmakedefine ZMQ_IOTHREAD_POLLER_USE_POLL
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#cmakedefine ZMQ_IOTHREAD_POLLER_USE_SELECT
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#cmakedefine ZMQ_HAVE_PPOLL
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#cmakedefine ZMQ_POLL_BASED_ON_SELECT
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#cmakedefine ZMQ_POLL_BASED_ON_POLL
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#cmakedefine HAVE_POSIX_MEMALIGN @HAVE_POSIX_MEMALIGN@
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#cmakedefine ZMQ_CACHELINE_SIZE @ZMQ_CACHELINE_SIZE@
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#cmakedefine ZMQ_FORCE_MUTEXES
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#cmakedefine HAVE_FORK
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#cmakedefine HAVE_CLOCK_GETTIME
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#cmakedefine HAVE_GETHRTIME
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#cmakedefine HAVE_MKDTEMP
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#cmakedefine ZMQ_HAVE_UIO
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#cmakedefine ZMQ_HAVE_NOEXCEPT
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#cmakedefine ZMQ_HAVE_EVENTFD
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#cmakedefine ZMQ_HAVE_EVENTFD_CLOEXEC
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#cmakedefine ZMQ_HAVE_IFADDRS
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#cmakedefine ZMQ_HAVE_SO_BINDTODEVICE
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#cmakedefine ZMQ_HAVE_SO_PEERCRED
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#cmakedefine ZMQ_HAVE_LOCAL_PEERCRED
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#cmakedefine ZMQ_HAVE_BUSY_POLL
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#cmakedefine ZMQ_HAVE_O_CLOEXEC
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#cmakedefine ZMQ_HAVE_SOCK_CLOEXEC
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#cmakedefine ZMQ_HAVE_SO_KEEPALIVE
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#cmakedefine ZMQ_HAVE_SO_PRIORITY
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#cmakedefine ZMQ_HAVE_TCP_KEEPCNT
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#cmakedefine ZMQ_HAVE_TCP_KEEPIDLE
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#cmakedefine ZMQ_HAVE_TCP_KEEPINTVL
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#cmakedefine ZMQ_HAVE_TCP_KEEPALIVE
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#cmakedefine ZMQ_HAVE_PTHREAD_SETNAME_1
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#cmakedefine ZMQ_HAVE_PTHREAD_SETNAME_2
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#cmakedefine ZMQ_HAVE_PTHREAD_SETNAME_3
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#cmakedefine ZMQ_HAVE_PTHREAD_SET_NAME
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#cmakedefine ZMQ_HAVE_PTHREAD_SET_AFFINITY
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#cmakedefine HAVE_ACCEPT4
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#cmakedefine HAVE_STRNLEN
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#cmakedefine ZMQ_HAVE_STRLCPY
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#cmakedefine ZMQ_HAVE_LIBBSD
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#cmakedefine ZMQ_HAVE_IPC
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#cmakedefine ZMQ_USE_BUILTIN_SHA1
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#cmakedefine ZMQ_USE_NSS
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#cmakedefine ZMQ_HAVE_WS
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#cmakedefine ZMQ_HAVE_WSS
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#cmakedefine ZMQ_HAVE_TIPC
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#cmakedefine ZMQ_HAVE_OPENPGM
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#cmakedefine ZMQ_HAVE_NORM
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#cmakedefine ZMQ_MAKE_VALGRIND_HAPPY
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#cmakedefine ZMQ_BUILD_DRAFT_API
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#cmakedefine ZMQ_HAVE_CURVE
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#cmakedefine ZMQ_USE_TWEETNACL
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#cmakedefine ZMQ_USE_LIBSODIUM
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#cmakedefine SODIUM_STATIC
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#cmakedefine ZMQ_USE_GNUTLS
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#cmakedefine ZMQ_USE_RADIX_TREE
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#cmakedefine HAVE_IF_NAMETOINDEX
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#ifdef _AIX
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#define ZMQ_HAVE_AIX
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#endif
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#if defined __ANDROID__
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#define ZMQ_HAVE_ANDROID
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#endif
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#if defined __CYGWIN__
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#define ZMQ_HAVE_CYGWIN
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#endif
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#if defined __MINGW32__
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#define ZMQ_HAVE_MINGW32
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#endif
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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#define ZMQ_HAVE_FREEBSD
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#endif
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#if defined(__DragonFly__)
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#define ZMQ_HAVE_FREEBSD
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#define ZMQ_HAVE_DRAGONFLY
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#endif
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#if defined __hpux
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#define ZMQ_HAVE_HPUX
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#endif
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#if defined __linux__
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#define ZMQ_HAVE_LINUX
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#endif
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#if defined __NetBSD__
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#define ZMQ_HAVE_NETBSD
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#endif
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#if defined __OpenBSD__
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#define ZMQ_HAVE_OPENBSD
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#endif
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// TODO better move OS-specific defines to the automake files, and check for availability of IPC with an explicit test there
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#if defined __VMS
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#define ZMQ_HAVE_OPENVMS
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#undef ZMQ_HAVE_IPC
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#endif
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#if defined __APPLE__
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#define ZMQ_HAVE_OSX
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#endif
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#if defined __QNXNTO__
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#define ZMQ_HAVE_QNXNTO
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#endif
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#if defined(sun) || defined(__sun)
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#define ZMQ_HAVE_SOLARIS
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#endif
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#cmakedefine ZMQ_HAVE_WINDOWS
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#cmakedefine ZMQ_HAVE_WINDOWS_UWP
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#endif
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