From f719d0fe308f00b85f92c29d7cdf9b0dc20d98a2 Mon Sep 17 00:00:00 2001 From: Erlang/OTP Date: Mon, 7 Apr 2014 19:52:48 +0200 Subject: Update release notes --- lib/kernel/doc/src/notes.xml | 197 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 197 insertions(+) (limited to 'lib/kernel/doc') diff --git a/lib/kernel/doc/src/notes.xml b/lib/kernel/doc/src/notes.xml index b2e89ea850..c6538b7d05 100644 --- a/lib/kernel/doc/src/notes.xml +++ b/lib/kernel/doc/src/notes.xml @@ -30,6 +30,203 @@

This document describes the changes made to the Kernel application.

+
Kernel 3.0 + +
Fixed Bugs and Malfunctions + + +

+ Fixed a deadlock possibility in terminate application

+

+ Own Id: OTP-11171

+ + +

+ Fixed bug where sendfile would return the wrong error + code for a remotely closed socket if the socket was in + passive mode. (Thanks to Vincent Siliakus for reporting + the bug.)

+

+ Own Id: OTP-11614

+ + +

+ The new option persistent is added to + application:set_env/4 and + application:unset_env/3. An environment key set + with the persistent option will not be overridden + by the ones configured in the application resource file + on load. This means persistent values will stick after + the application is loaded and also on application reload. + (Thanks to José Valim)

+

+ Own Id: OTP-11708

+ + +

+ The spec for file:set_cwd/1 is modified to also accept + binaries as arguments. This has always been allowed in + the code, but it was not reflected in the spec since + binaries are mostly used for raw file names. Raw file + names are names that are not encoded according to + file:native_name_encoding(), and these are not allowed in + file:set_cwd/1. The spec is now, however, more allowing + in order to avoid unnecessary dialyzer warnings. Raw file + names will still fail in runtime with reason + 'no_translation'. (Thanks to José Valim)

+

+ Own Id: OTP-11787

+ + +
+ + +
Improvements and New Features + + +

+ heart:set_cmd/1 is updated to allow unicode code points > + 255 in the given heart command

+

+ Own Id: OTP-10843

+ + +

Dialyzer's unmatched_return warnings have been + corrected.

+

+ Own Id: OTP-10908

+ + +

+ Make erlang:open_port/2 spawn and spawn_executable handle + unicode.

+

+ Own Id: OTP-11105

+ + +

+ Erlang/OTP has been ported to the realtime operating + system OSE. The port supports both smp and non-smp + emulator. For details around the port and how to started + see the User's Guide in the ose application.

+

+ Note that not all parts of Erlang/OTP has been ported.

+

+ Notable things that work are: non-smp and smp emulators, + OSE signal interaction, crypto, asn1, run_erl/to_erl, + tcp, epmd, distribution and most if not all non-os + specific functionality of Erlang.

+

+ Notable things that does not work are: udp/sctp, os_mon, + erl_interface, binding of schedulers.

+

+ Own Id: OTP-11334

+ + +

+ Add the {active,N} socket option for TCP, UDP, and SCTP, + where N is an integer in the range -32768..32767, to + allow a caller to specify the number of data messages to + be delivered to the controlling process. Once the + socket's delivered message count either reaches 0 or is + explicitly set to 0 with inet:setopts/2 or by including + {active,0} as an option when the socket is created, the + socket transitions to passive ({active, false}) mode and + the socket's controlling process receives a message to + inform it of the transition. TCP sockets receive + {tcp_passive,Socket}, UDP sockets receive + {udp_passive,Socket} and SCTP sockets receive + {sctp_passive,Socket}.

+

+ The socket's delivered message counter defaults to 0, but + it can be set using {active,N} via any gen_tcp, gen_udp, + or gen_sctp function that takes socket options as + arguments, or via inet:setopts/2. New N values are added + to the socket's current counter value, and negative + numbers can be used to reduce the counter value. + Specifying a number that would cause the socket's counter + value to go above 32767 causes an einval error. If a + negative number is specified such that the counter value + would become negative, the socket's counter value is set + to 0 and the socket transitions to passive mode. If the + counter value is already 0 and inet:setopts(Socket, + [{active,0}]) is specified, the counter value remains at + 0 but the appropriate passive mode transition message is + generated for the socket.

+

+ Thanks to Steve Vinoski

+

+ Own Id: OTP-11368

+ + +

+ A call to either the garbage_collect/1 BIF or the + check_process_code/2 BIF may trigger garbage + collection of another processes than the process calling + the BIF. The previous implementations performed these + kinds of garbage collections without considering the + internal state of the process being garbage collected. In + order to be able to more easily and more efficiently + implement yielding native code, these types of garbage + collections have been rewritten. A garbage collection + like this is now triggered by an asynchronous request + signal, the actual garbage collection is performed by the + process being garbage collected itself, and finalized by + a reply signal to the process issuing the request. Using + this approach processes can disable garbage collection + and yield without having to set up the heap in a state + that can be garbage collected.

+

+ The garbage_collect/2, + and check_process_code/3 + BIFs have been introduced. Both taking an option list as + last argument. Using these, one can issue asynchronous + requests.

+

+ code:purge/1 and code:soft_purge/1 have + been rewritten to utilize asynchronous + check_process_code requests in order to + parallelize work.

+

+ Characteristics impact: A call to the + garbage_collect/1 BIF or the + check_process_code/2 BIF will normally take longer + time to complete while the system as a whole wont be as + much negatively effected by the operation as before. A + call to code:purge/1 and code:soft_purge/1 + may complete faster or slower depending on the state of + the system while the system as a whole wont be as much + negatively effected by the operation as before.

+

+ Own Id: OTP-11388 Aux Id: OTP-11535, OTP-11648

+ + +

+ Add sync option to file:open/2.

+

+ The sync option adds the POSIX O_SYNC flag to the open + system call on platforms that support the flag or its + equivalent, e.g., FILE_FLAG_WRITE_THROUGH on Windows. For + platforms that don't support it, file:open/2 returns + {error, enotsup} if the sync option is passed in. Thank + to Steve Vinoski and Joseph Blomstedt

+

+ Own Id: OTP-11498

+ + +

The contract of inet:ntoa/1 has been + corrected.

Thanks to Max Treskin.

+

+ Own Id: OTP-11730

+ + +
+ +
+
Kernel 2.16.4
Fixed Bugs and Malfunctions -- cgit v1.2.3