pvxs/documentation/releasenotes.rst

Release Notes

1.0.1 (Oct 2022)

• Fix c++17 compilation issue
• Allow TypeDef to append StructA and UnionA
• Reduce "non-existent IOID" noise
• Fix CMD_MESSAGE handling
• Fix locking of client monitor during pop()
• Calculate buffer sizes in terms of OS socket buffer limit
• Fix low water mark calculation
• Fix Timer ownership (expert API)
• Avoid assert() when client asked to search for PV names longer than 1400 bytes.

1.0.0 (Sept 2022)

• Add pvxs::client::ConnectBuilder::server
• Add hold-off timer when reconnecting to a specific server.
• Fix missing closing quote when printing a String in tree format.

0.3.1 (June 2022)

• Fix ifaddrs::ifa_addr can be NULL
• Limit beacon tracking by size as well as time

0.3.0 (May 2022)

• Fix protocol incompatibility with Big Endian servers.
• Add support for IPv4 multicast and IPv6 uni/multicast for UDP. And IPv6 unicast for TCP. See addrspec for entries which may now appear in EPICS_PVA*_ADDR_LIST.
• PVXS now attempts to fanout unicast searches through the loopback interface, and to handle CMD_ORIGIN_TAG messages (aka. the local multicast hack).
• Add pvxs::client::Context::discover to enumerate and track PVA Servers.
• pvxlist add "continous" mode. (eg. pvxlist -v -w 0) To immediately Discover new servers, then continue listening for Beacons to detect as server go up and down (like casw). Also, to be gentler on your network, add -P to skip initial Discovery ping, and only listen for Beacons.

0.2.2 (Jan 2022)

• No functional change to libraries.
• Updates to python packaging.

0.2.1 (Oct 2021)

• Bug fixes

• Fix pvxsmonitor hang when interrupted (Ctrl+c).
• Fix pvxs::client::Subscription::shared_from_this() leaking internal reference.
• Fix SharedPV potential race conditions involving "current" Value.

• Changes

• Ignore beacons with protocol field other than "tcp". Forward compatibility.
• Limit packet hex dumps to 64 bytes.
• testStrMatch() now specified POSIX regular expression syntax.
• Client operations builders rawRequest(Value()) is now a no-op. Previously produced a non-nonsensical empty request.

• Additions

• Add pvxs::client::Context::fromEnv().

0.2.0 (July 2021)

• Bug fixes

• Resolve ambiguity between Value::as(T&) and Value::as(FN&&) causing issue with GCC 4.8.
• Fix encoding of (Sub)Struct w/ valid set.
• Fix locking issue with client tracking of server beacons.
• Fix binding to specific interface addresses.

• Changes

• To simplify usage in situations with complex threading, many client methods avoid unnecessary synchronization with the client worker thread. Cancellation still synchronizes by default, but this may now be controlled with the new syncCancel() Builder methods. cf. pvxs::client::detail::CommonBuilder::syncCancel().
• Client Op Builder server() method now implemented.
• Client channel cache now periodically prunes unused Channels automatically.

• Additions

• Add server ignore address list. cf. pvxs::server::Config::ignoreAddrs. Configured from $EPICS_PVAS_IGNORE_ADDR_LIST.
• Allow TCP timeout to be configured.
• Add pvxs::client::Context::connect() to force Channel creation and retention.
• Add pvxs::client::Subscription::shared_from_this() which can be used with eg. the new pvxs::MPMCFIFO to create a work queue.
• Add pvxs::server::ExecOp::pvRequest()
• Semi-public expertapi.
• Update bundled libevent
• Preliminary support for RTEMS 5.1 with libbsd

0.1.5 (May 2021)

• Bug Fixes

• Fix several previously unusable template methods of pvxs::shared_array
• Fix pvxs::logger_level_set

• Changes

• Default logger level changed from Err to Warn.
• Server warns when falling back from requested TCP port.
• Public headers include <iosfwd> instead of <ostream>.

• Additions

• Add pvxs::nt::NTEnum

0.1.4 (APR 2021)

• Bug Fixes

• Fix potential locking issue monitor queue
• Fix potential locking issue in Shared PV with concurrent open()/close() vs. post()

• Additions

• Add pvxs::nt::TimeStamp and pvxs::nt::Alarm.

0.1.3 (FEB 2021)

• Bug Fixes

• Fix regression from 0.1.2 causing possible crash on targets defining SO_RXQ_OVFL (eg. Linux).

0.1.2 (FEB 2021)

• Bug Fixes

• Fix TCP connection "stall" (incorrect deferred read).

• Changes

• Raise UDP search reply processing limit.
• Try not to fragment UDP search packets.
• mailbox example can serve more than one PV.
• Indent printed field=value in delta output mode.

0.1.1 (Jan 2021)

• Bug Fixes

• Fix decoding of "null" string. Addresses interoperability with pvAccessJava.
• Increase inactivity timeout for TCP connections from 30 to 40 seconds. Also for interoperability with pvAccessJava.
• Client search requests incorrectly set Server direction bit. (existing servers don't enforce this)
• Improved handling of errors resulting from pvRequest processing. eg. field selection which doesn't select any fields.

• Added Features

• Added PVXS_ABI_VERSION et al. to pvxs/version.h
• Add testThrowsMatch and testStrMatch to pvxs/unitttest.h

• Changes

• Changed name of automatic Sources "builtin" and "server" to "__builtin" and "__server". Document that Source names beginning with __ are reserved.

0.1.0 (Dec 2020)

• Initial Release