nanonext 0.13.5

Updates

• Removes SHA-2 cryptographic hash functions (please use the streaming implementation in the secretbase package).

nanonext 0.13.4

New Features

• An integer file descriptor is appended to 'nanoSockets' as the attribute 'fd' - see updated documentation for socket().

nanonext 0.13.3

New Features

• next_config() gains argument 'class' and 'vec', enabling custom serialization for all reference object types supported by R serialization.

Updates

• Upgrades bundled 'libnng' to v1.7.3.

nanonext 0.13.2

Updates

• Fixes cases of 'built for newer macOS version than being linked' installation warnings on MacOS.
• Fixes other compiler warnings with additional flags enabled on the CRAN M1mac test machine.
• Upgrades bundled 'libnng' to v1.7.2.

CRAN release 0.13.0

nanonext 0.13.0

Updates

Please note the following potentially breaking changes, and only update when ready:

• Default behaviour of send() and recv() aligned to non-blocking for both Sockets and Contexts (facilitated by synchronous context sends in NNG since v1.6.0).
• ncurl(), ncurl_aio() and ncurl_session() now restrict 'header' and 'response' arguments to character vectors only, no longer accepting lists (for safety and performance).
• Unserialization / decoding errors where the received message cannot be translated to the specified mode will output a message to stderr, but no longer generate a warning.
• SHA functions now skip serialization headers for serialized R objects (ensuring portability as these contain R version and encoding information). This means that, for serialized objects, hashes will be different to those obtained using prior package versions.
• sha1() is removed as a hash option.

Other changes:

• messenger() specifying 'auth' now works reliably on endpoints using different R versions/platforms due to the above hashing portability fix.
• Internal memory-efficiency and performance enhancements.
• Upgrades bundled 'libmbedtls' to v3.5.2.

CRAN release 0.12.0

nanonext 0.12.0

This is a major performance and stability release bundling the 'libnng' v1.7.0 source code.

New Features

• pipe_notify() argument 'flag' allows supplying a signal to be raised on a flag being set upon a pipe event.

Updates

• More compact print methods for 'recvAio', 'sendAio', 'ncurlAio', 'ncurlSession' and 'tlsConfig' objects.
• random() now explicitly limits argument 'n' to values between 0 and 1024.
• next_config() now returns a pairlist (of the registered serialization functions) rather than a list (for efficiency).
• Using mode 'next', serialization functions with incorrect signatures are now simply ignored rather than raise errors.
• 'nanoStream' objects simplified internally with updated attributes 'mode' and 'state'.
• Deprecated function .until() is removed.
• Eliminates potential memory leaks along certain error paths.
• Fixes bug which prevented much higher TLS performance when using the bundled 'libnng' source.
• Upgrades bundled 'libnng' to v1.7.0 release.

CRAN release 0.11.0

nanonext 0.11.0

This is a major stability release bundling the 'libnng' v1.6.0 source code.

New Features

• Introduces call_aio_(), a user-interruptible version of call_aio() suitable for interactive use.
• Introduces wait_() and until_() user-interruptible versions of wait() and until() suitable for interactive use.
• Implements %~>% signal forwarder from one 'conditionVariable' to another.

Updates

• next_config() replaces nextmode() with the following improvements:
  • simplified 'refhook' argument takes a pair of serialization and unserialization functions as a list.
  • registered 'refhook' functions apply to external pointer type objects only.
  • no longer returns invisibly for easier confimation that the correct functions have been registered.
• until() updated to be identical to .until(), returning FALSE instead of TRUE if the timeout has been reached.
• reap() updated to no longer warn in cases it returns an 'errorValue'.
• pipe_notify() arguments 'add', 'remove' and 'flag' now default to FALSE instead of TRUE for easier selective specification of the events to signal.
• Fixes regression in release 0.10.4 that caused a potential segfault using ncurl() with 'follow' set to TRUE when the server returns a missing or invalid relocation address.
• The weak references interface is removed as 'non-core'.
• Upgrades bundled 'libnng' to v1.6.0 release.
• Upgrades bundled 'libmbedtls' to v 3.5.1.

CRAN release 0.10.4

nanonext 0.10.4

New Features

• nextmode() configures settings for send mode 'next'. Registers hook functions for custom serialization and unserialization of reference objects (such as those accessed via an external pointer).
• .until() contains revised behaviour for this synchronisation primitive, returning FALSE instead of TRUE if the timeout has been reached. This function will replace until() in a future package version.

Updates

• lock() supplying 'cv' has improved behaviour which locks the socket whilst allowing for both initial connections and re-connections (when the 'cv' is registered for both add and remove pipe events).
• Improves listener / dialer logic for TLS connections, allowing inter alia synchronous dials.
• request() argument 'ack' removed due to stability considerations.
• Fixes memory leaks detected with valgrind.
• Upgrades bundled 'libmbedtls' to v 3.5.0.

CRAN release 0.10.2

nanonext 0.10.2

Updates

• Addresses one case of memory access error identified by CRAN.

CRAN release 0.10.1

nanonext 0.10.1

New Features

• request() adds logical argument 'ack', which sends an ack(nowledgement) back to the rep node upon a successful async message receive.
• reap() implemented as a faster alternative to close() for Sockets, Contexts, Listeners and Dialers - avoiding S3 method dispatch, hence works for unclassed external pointers created by .context().
• random() updated to use the Mbed TLS library to generate random bytes. Adds a 'convert' argument for specifying whether to return a raw vector or character string.
• Adds 'next' as a mode for send functions, as a 100% compatible R serialisation format (may be received using mode 'serial').

Updates

• write_cert() has been optimised for higher efficiency and faster operation.
• send() and recv() over contexts now use more efficient synchronous methods where available.
• Fixes package installation failures where the R default C compiler command contains additional flags (thanks @potash #16).
• Performance improvements due to simplification of the internal structure of 'aio' objects.
• Rolls forward bundled 'libnng' to v1.6.0 alpha (a54820f).