diff options
Diffstat (limited to 'lib/stdlib/doc')
| -rw-r--r-- | lib/stdlib/doc/src/beam_lib.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/erl_tar.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/ets.xml | 65 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/filelib.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/filename.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/gen_event.xml | 12 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/gen_server.xml | 14 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/gen_statem.xml | 26 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/lists.xml | 4 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/notes.xml | 472 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/proc_lib.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/proplists.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/rand.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/sets.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/string.xml | 10 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/supervisor.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/sys.xml | 4 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/unicode.xml | 2 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/unicode_usage.xml | 2 |
19 files changed, 583 insertions, 46 deletions
diff --git a/lib/stdlib/doc/src/beam_lib.xml b/lib/stdlib/doc/src/beam_lib.xml index 031d79d0e2..26d0724aaf 100644 --- a/lib/stdlib/doc/src/beam_lib.xml +++ b/lib/stdlib/doc/src/beam_lib.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2000</year><year>2016</year> + <year>2000</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/erl_tar.xml b/lib/stdlib/doc/src/erl_tar.xml index fab7c832d5..337028568a 100644 --- a/lib/stdlib/doc/src/erl_tar.xml +++ b/lib/stdlib/doc/src/erl_tar.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2003</year><year>2016</year> + <year>2003</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml index d1ec176f81..95af2b77a5 100644 --- a/lib/stdlib/doc/src/ets.xml +++ b/lib/stdlib/doc/src/ets.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -49,13 +49,22 @@ associated with each key. A <c>bag</c> or <c>duplicate_bag</c> table can have many objects associated with each key.</p> - <p>The number of tables stored at one Erlang node is limited. - The current default limit is about 1400 tables. The upper - limit can be increased by setting environment variable - <c>ERL_MAX_ETS_TABLES</c> before starting the Erlang runtime - system (that is, with option <c>-env</c> to - <c>erl</c>/<c>werl</c>). The actual limit can be slightly higher - than the one specified, but never lower.</p> + <note> + <p> + The number of tables stored at one Erlang node <em>used</em> to + be limited. This is no longer the case (except by memory usage). + The previous default limit was about 1400 tables and + could be increased by setting the environment variable + <c>ERL_MAX_ETS_TABLES</c> before starting the Erlang runtime + system. This hard limit has been removed, but it is currently + useful to set the <c>ERL_MAX_ETS_TABLES</c> anyway. It should be + set to an approximate of the maximum amount of tables used. This since + an internal table for named tables is sized using this value. If + large amounts of named tables are used and <c>ERL_MAX_ETS_TABLES</c> + hasn't been increased, the performance of named table lookup will + degrade. + </p> + </note> <p>Notice that there is no automatic garbage collection for tables. Even if there are no references to a table from any process, it @@ -399,9 +408,9 @@ calls cannot be in the guard or body of the fun. Calls to built-in match specification functions is of course allowed:</p> <pre> -4> <input>ets:fun2ms(fun({M,N}) when N > X, is_atomm(M) -> M end).</input> +4> <input>ets:fun2ms(fun({M,N}) when N > X, my_fun(M) -> M end).</input> Error: fun containing local Erlang function calls -('is_atomm' called in guard) cannot be translated into match_spec +('my_fun' called in guard) cannot be translated into match_spec {error,transform_error} 5> <input>ets:fun2ms(fun({M,N}) when N > X, is_atom(M) -> M end).</input> [{{'$1','$2'},[{'>','$2',{const,3}},{is_atom,'$1'}],['$1']}]</pre> @@ -1495,17 +1504,37 @@ is_integer(X), is_integer(Y), X + Y < 4711]]></code> <fsummary>Match and replace objects atomically in an ETS table</fsummary> <desc> <p>Matches the objects in the table <c><anno>Tab</anno></c> using a - <seealso marker="#match_spec">match specification</seealso>. If - an object is matched, the existing object is replaced with - the match specification result, which <em>must</em> retain - the original key or the operation will fail with <c>badarg</c>.</p> + <seealso marker="#match_spec">match specification</seealso>. For each + matched object, the existing object is replaced with + the match specification result.</p> + <p>The match-and-replace operation for each individual object is guaranteed to be + <seealso marker="#concurrency">atomic and isolated</seealso>. The + <c>select_replace</c> table iteration as a whole, like all other select functions, + does not give such guarantees.</p> + <p>The match specifiction must be guaranteed to <em>retain the key</em> + of any matched object. If not, <c>select_replace</c> will fail with <c>badarg</c> + without updating any objects.</p> <p>For the moment, due to performance and semantic constraints, tables of type <c>bag</c> are not yet supported.</p> <p>The function returns the total number of replaced objects.</p> - <note> - <p>The match/replacement operation atomicity scope is limited - to each individual object.</p> - </note> + <p><em>Example</em></p> + <p>For all 2-tuples with a list in second position, add atom <c>'marker'</c> first in the list:</p> + <pre> +1> <input>T = ets:new(x,[]), ets:insert(T, {key, [1, 2, 3]}).</input> +true +2> <input>MS = ets:fun2ms(fun({K, L}) when is_list(L) -> {K, [marker | L]} end).</input> +[{{'$1','$2'},[{is_list,'$2'}],[{{'$1',[marker|'$2']}}]}] +3> <input>ets:select_replace(T, MS).</input> +1 +4> <input>ets:tab2list(T).</input> +[{key,[marker,1,2,3]}] + </pre> + <p>A generic single object compare-and-swap operation:</p> + <pre> +[Old] = ets:lookup(T, Key), +New = update_object(Old), +Success = (1 =:= ets:select_replace(T, [{Old, [], [{const, New}]}])), + </pre> </desc> </func> diff --git a/lib/stdlib/doc/src/filelib.xml b/lib/stdlib/doc/src/filelib.xml index ad73fc254a..80c4acffdb 100644 --- a/lib/stdlib/doc/src/filelib.xml +++ b/lib/stdlib/doc/src/filelib.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2003</year><year>2016</year> + <year>2003</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/filename.xml b/lib/stdlib/doc/src/filename.xml index 0ccca37a9d..14fd5ef787 100644 --- a/lib/stdlib/doc/src/filename.xml +++ b/lib/stdlib/doc/src/filename.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1997</year><year>2016</year> + <year>1997</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/gen_event.xml b/lib/stdlib/doc/src/gen_event.xml index 56cb7974a2..012737c390 100644 --- a/lib/stdlib/doc/src/gen_event.xml +++ b/lib/stdlib/doc/src/gen_event.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -358,7 +358,7 @@ gen_event:stop -----> Module:terminate/2 <v> Name = atom()</v> <v> GlobalName = ViaName = term()</v> <v>Options = [Option]</v> - <v> Option = {debug,Dbgs} | {timeout,Time} | {spawn_opt,SOpts}</v> + <v> Option = {debug,Dbgs} | {timeout,Time} | {hibernate_after,HibernateAfterTimeout} | {spawn_opt,SOpts}</v> <v> Dbgs = [Dbg]</v> <v> Dbg = trace | log | statistics | {log_to_file,FileName} | {install,{Func,FuncState}}</v> <v> SOpts = [term()]</v> @@ -385,7 +385,7 @@ gen_event:stop -----> Module:terminate/2 <v> Name = atom()</v> <v> GlobalName = ViaName = term()</v> <v>Options = [Option]</v> - <v> Option = {debug,Dbgs} | {timeout,Time} | {spawn_opt,SOpts}</v> + <v> Option = {debug,Dbgs} | {timeout,Time} | {hibernate_after,HibernateAfterTimeout} | {spawn_opt,SOpts}</v> <v> Dbgs = [Dbg]</v> <v> Dbg = trace | log | statistics | {log_to_file,FileName} | {install,{Func,FuncState}}</v> <v> SOpts = [term()]</v> @@ -419,6 +419,12 @@ gen_event:stop -----> Module:terminate/2 <seealso marker="kernel:global"><c>global</c></seealso>. Thus, <c>{via,global,GlobalName}</c> is a valid reference.</p> </item> + <item> + <p>If option <c>{hibernate_after,HibernateAfterTimeout}</c> is present, the <c>gen_event</c> + process awaits any message for <c>HibernateAfterTimeout</c> milliseconds and + if no message is received, the process goes into hibernation automatically + (by calling <seealso marker="proc_lib#hibernate/3"><c>proc_lib:hibernate/3</c></seealso>).</p> + </item> </list> <p>If the event manager is successfully created, the function returns <c>{ok,Pid}</c>, where <c>Pid</c> is the pid of diff --git a/lib/stdlib/doc/src/gen_server.xml b/lib/stdlib/doc/src/gen_server.xml index 0bcbbc2805..7d137fc772 100644 --- a/lib/stdlib/doc/src/gen_server.xml +++ b/lib/stdlib/doc/src/gen_server.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -199,7 +199,7 @@ gen_server:abcast -----> Module:handle_cast/2 <type> <v>Module = atom()</v> <v>Options = [Option]</v> - <v> Option = {debug,Dbgs}</v> + <v> Option = {debug,Dbgs} | {hibernate_after,HibernateAfterTimeout}</v> <v> Dbgs = [Dbg]</v> <v> Dbg = trace | log | statistics</v> <v> | {log_to_file,FileName} | {install,{Func,FuncState}}</v> @@ -334,7 +334,7 @@ gen_server:abcast -----> Module:handle_cast/2 <v>Module = atom()</v> <v>Args = term()</v> <v>Options = [Option]</v> - <v> Option = {debug,Dbgs} | {timeout,Time} | {spawn_opt,SOpts}</v> + <v> Option = {debug,Dbgs} | {timeout,Time} | {hibernate_after,HibernateAfterTimeout} | {spawn_opt,SOpts}</v> <v> Dbgs = [Dbg]</v> <v> Dbg = trace | log | statistics | {log_to_file,FileName} | {install,{Func,FuncState}}</v> <v> SOpts = [term()]</v> @@ -364,7 +364,7 @@ gen_server:abcast -----> Module:handle_cast/2 <v>Module = atom()</v> <v>Args = term()</v> <v>Options = [Option]</v> - <v> Option = {debug,Dbgs} | {timeout,Time} | {spawn_opt,SOpts}</v> + <v> Option = {debug,Dbgs} | {timeout,Time} | {hibernate_after,HibernateAfterTimeout} | {spawn_opt,SOpts}</v> <v> Dbgs = [Dbg]</v> <v> Dbg = trace | log | statistics | {log_to_file,FileName} | {install,{Func,FuncState}}</v> <v> SOpts = [term()]</v> @@ -417,6 +417,12 @@ gen_server:abcast -----> Module:handle_cast/2 returns <c>{error,timeout}</c>.</p> </item> <item> + <p>If option <c>{hibernate_after,HibernateAfterTimeout}</c> is present, the <c>gen_server</c> + process awaits any message for <c>HibernateAfterTimeout</c> milliseconds and + if no message is received, the process goes into hibernation automatically + (by calling <seealso marker="proc_lib#hibernate/3"><c>proc_lib:hibernate/3</c></seealso>).</p> + </item> + <item> <p>If option <c>{debug,Dbgs}</c> is present, the corresponding <c>sys</c> function is called for each item in <c>Dbgs</c>; see diff --git a/lib/stdlib/doc/src/gen_statem.xml b/lib/stdlib/doc/src/gen_statem.xml index 17a3a3c83c..a7caa71dcb 100644 --- a/lib/stdlib/doc/src/gen_statem.xml +++ b/lib/stdlib/doc/src/gen_statem.xml @@ -346,7 +346,7 @@ ok <p> To compare styles, here follows the same example using <seealso marker="#type-callback_mode"><em>callback mode</em></seealso> - <c>state_functions</c>, or rather the code to replace + <c>handle_event_function</c>, or rather the code to replace after function <c>init/1</c> of the <c>pushbutton.erl</c> example file above: </p> @@ -453,6 +453,21 @@ handle_event(_, _, State, Data) -> </desc> </datatype> <datatype> + <name name="hibernate_after_opt"/> + <desc> + <p> + hibernate_after option that can be used when starting + a <c>gen_statem</c> server through, + <seealso marker="#enter_loop/4"><c>enter_loop/4-6</c></seealso>. + </p> + <p>If option<seealso marker="#type-hibernate_after_opt"><c>{hibernate_after,HibernateAfterTimeout}</c></seealso> is present, the <c>gen_statem</c> + process awaits any message for <c>HibernateAfterTimeout</c> milliseconds and + if no message is received, the process goes into hibernation automatically + (by calling <seealso marker="proc_lib#hibernate/3"><c>proc_lib:hibernate/3</c></seealso>). + </p> + </desc> + </datatype> + <datatype> <name name="start_opt"/> <desc> <p> @@ -1083,7 +1098,7 @@ handle_event(_, _, State, Data) -> <seealso marker="#Module:init/1"><c>Module:init/1</c></seealso> or <seealso marker="#enter_loop/5"><c>enter_loop/5,6</c></seealso> - would be weird on the border of whichcraft + would be weird on the border of witchcraft since there has been no earlier call to a <seealso marker="#state callback">state callback</seealso> in this server. @@ -1551,6 +1566,13 @@ handle_event(_, _, State, Data) -> </p> </item> <item> + <p>If option<seealso marker="#type-hibernate_after_opt"><c>{hibernate_after,HibernateAfterTimeout}</c></seealso> is present, the <c>gen_statem</c> + process awaits any message for <c>HibernateAfterTimeout</c> milliseconds and + if no message is received, the process goes into hibernation automatically + (by calling <seealso marker="proc_lib#hibernate/3"><c>proc_lib:hibernate/3</c></seealso>). + </p> + </item> + <item> <p> If option <seealso marker="#type-debug_opt"><c>{debug,Dbgs}</c></seealso> diff --git a/lib/stdlib/doc/src/lists.xml b/lib/stdlib/doc/src/lists.xml index 60dbae70c2..7efafedc82 100644 --- a/lib/stdlib/doc/src/lists.xml +++ b/lib/stdlib/doc/src/lists.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -187,7 +187,7 @@ <desc> <p>Calls <c><anno>Fun</anno>(<anno>Elem</anno>)</c> on successive elements <c>Elem</c> of <c><anno>List1</anno></c>. - <c><anno>Fun</anno>/2</c> must return either a Boolean or a tuple + <c><anno>Fun</anno>/1</c> must return either a Boolean or a tuple <c>{true, <anno>Value</anno>}</c>. The function returns the list of elements for which <c><anno>Fun</anno></c> returns a new value, where a value of <c>true</c> is synonymous with diff --git a/lib/stdlib/doc/src/notes.xml b/lib/stdlib/doc/src/notes.xml index 428d8a6e70..bdd5b39cd3 100644 --- a/lib/stdlib/doc/src/notes.xml +++ b/lib/stdlib/doc/src/notes.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2004</year><year>2016</year> + <year>2004</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -31,6 +31,476 @@ </header> <p>This document describes the changes made to the STDLIB application.</p> +<section><title>STDLIB 3.4.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> A bug in <c>proc_lib:format()</c> introduced in + Erlang/OTP 20.0 is corrected. </p> + <p> + Own Id: OTP-14482 Aux Id: PR-1488 </p> + </item> + <item> + <p> + Fix string:len/1 to be compatible with previous versions.</p> + <p> + Own Id: OTP-14487 Aux Id: ERIERL-40 </p> + </item> + <item> + <p> + In OTP-20.0, the behavior of c, make, and ct_make was + changed so that in some cases the beam files by default + would be written to the directory where the source files + were found. This is now changed back to the old behavior + so beam files are by default written to current + directory.</p> + <p> + Own Id: OTP-14489 Aux Id: ERL-438 </p> + </item> + </list> + </section> + +</section> + +<section><title>STDLIB 3.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>For many releases, it has been legal to override a BIF + with a local function having the same name. However, + calling a local function with the same name as guard BIF + as filter in a list comprehension was not allowed.</p> + <p> + Own Id: OTP-13690</p> + </item> + <item> + <p> A new (default) pseudo-random number generator + algorithm Xoroshiro116+ has been implemented in the + <c>rand</c> module. </p><p> The old algorithm + implementations had a number of flaws so they are all + deprecated, but corrected versions of two of them have + been added. See the documentation. </p> + <p> + Own Id: OTP-14295 Aux Id: PR-1372 </p> + </item> + <item> + <p> The Erlang shell, <c>qlc:string_to_handle()</c>, and + the Debugger (the Evaluator area and Edit variable window + of the Bindings area) can parse pids, ports, references, + and external funs, as long as they can be created in the + running system. </p> + <p> + Own Id: OTP-14296</p> + </item> + <item> + <p>Internal code change: Calls to <c>catch</c> followed + by a call to <c>erlang:get_stacktrace/0</c> has been + rewritten to use <c>try</c> instead of <c>catch</c> to + make the code future-proof.</p> + <p> + Own Id: OTP-14400</p> + </item> + <item> + <p> The <c>ms_transform</c> module, used by + <c>ets:fun2ms/1</c> and <c>dbg:fun2ms/1</c>, evaluates + constant arithmetic expressions. This is necessary since + the Erlang compiler, which normally evaluates constant + expressions, does not recognize the format generated by + <c>ms_transform</c>. </p> + <p> + Own Id: OTP-14454 Aux Id: ERIERL-29 </p> + </item> + <item> + <p> The state machine engine <c>gen_statem</c> can now + handle generic time-outs (multiple named) as well as + absolute time-out time. See the documentation. </p><p> + The <c>gen_statem</c> callback <c>Module:init/1</c> has + become mandatory to harmonize with other <c>gen_*</c> + modules. This may be an incompatibility for + <c>gen_statem</c> callback modules that use + <c>gen_statem:enter_loop/4-6</c>. </p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14531</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Improved unicode support for strings. Added normalization + functions in the <c>unicode</c> module. Extended the + <c>string</c> module API with new functions with improved + unicode handling and that works on grapheme clusters. The + new functions operates on the <c>unicode:chardata()</c> + type, thus they also accept <c>UTF-8 binaries</c> as + input. </p> + <p> + The old string API have been marked as obsolete. The + return values have been changed for some error cases.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-10289 Aux Id: OTP-10309 </p> + </item> + <item> + <p>There are two new guard BIFs '<c>floor/1</c>' and + '<c>ceil/1</c>'. They both return integers. In the + '<c>math</c>' module, there are two new BIFs with the + same names that return floating point values.</p> + <p> + Own Id: OTP-13692</p> + </item> + <item> + <p> + Making code_change, terminate and handle_info callbacks + optional in the OTP behaviours.</p> + <p> + Own Id: OTP-13801</p> + </item> + <item> + <p> The support for Dets files created with Erlang/OTP R7 + and earlier is removed. </p> + <p> + Own Id: OTP-13830</p> + </item> + <item> + <p>Replaced usage of deprecated symbolic <seealso + marker="erts:erlang#type-time_unit"><c>time + unit</c></seealso> representations.</p> + <p> + Own Id: OTP-13831 Aux Id: OTP-13735 </p> + </item> + <item> + <p>The function <c>fmod/2</c> has been added to the + <c>math</c> module.</p> + <p> + Own Id: OTP-14000</p> + </item> + <item> + <p>The EXIT signals received from processes using + <c>proc_lib</c> now looks like EXIT signals from + processes that were spawned using <c>spawn_link</c>. In + particular, that means that the stack trace is now + included in the EXIT signal so that it can see where the + process crashed.</p> + <p> + Own Id: OTP-14001</p> + </item> + <item> + <p><c>sets:add_element/2</c> is faster when adding an + element that is already present, and + <c>sets:del_element/2</c> is faster when the element to + be deleted is not present. This optimization can make + certain operations, such as sets:union/2 with many + overlapping elements, up to two orders of magnitude + faster.</p> + <p> + Own Id: OTP-14035</p> + </item> + <item> + <p> + Add information in doc about supervisor shutdown reason + when maximum restart frequency is reached.</p> + <p> + Own Id: OTP-14037 Aux Id: PR-1233 </p> + </item> + <item> + <p> + Added <c>rand:jump/[0|1]</c> functions.</p> + <p> + Own Id: OTP-14038 Aux Id: PR-1235 </p> + </item> + <item> + <p>Functions for detecting changed code has been added. + <c>code:modified_modules/0</c> returns all currently + loaded modules that have changed on disk. + <c>code:module_status/1</c> returns the status for a + module. In the shell and in <c>c</c> module, <c>mm/0</c> + is short for <c>code:modified_modules/0</c>, and + <c>lm/0</c> reloads all currently loaded modules that + have changed on disk.</p> + <p> + Own Id: OTP-14059</p> + </item> + <item> + <p>Each assert macro in <c>assert.hrl</c> now has a + corresponding version with an extra argument, for adding + comments to assertions. These can for example be printed + as part of error reports, to clarify the meaning of the + check that failed.</p> + <p> + Own Id: OTP-14066</p> + </item> + <item> + <p><c>error_logger_tty_h</c> and + <c>error_logger_file_h</c> now inserts the node + information for nonlocal messages before the message + itself instead of after, both for readability and so as + not to change the line termination property at the end of + the message.</p> + <p> + Own Id: OTP-14068</p> + </item> + <item> + <p>The Erlang code linter checks for badly formed type + constraints. </p> + <p> + Own Id: OTP-14070 Aux Id: PR-1214 </p> + </item> + <item> + <p>By default, there will now be a warning when + <c>export_all</c> is used. The warning can be disabled + using <c>nowarn_export_all</c>.</p> + <p> + Own Id: OTP-14071</p> + </item> + <item> + <p>When a <c>gen_server</c> process crashes, the + stacktrace for the client will be printed to facilitate + debugging.</p> + <p> + Own Id: OTP-14089</p> + </item> + <item> + <p>Optimized ETS operations by changing table identifier + type from integer to reference. The reference enables a + more direct mapping to the table with less potential lock + contention and makes especially creation and deletion of + tables scale much better.</p> <p>The change of the opaque + type for the ETS table identifiers may cause failure in + code that make faulty assumptions about this opaque + type.</p> <note> <p> The number of tables stored at one + Erlang node <em>used</em> to be limited. This is no + longer the case (except by memory usage). The previous + default limit was about 1400 tables and could be + increased by setting the environment variable + <c>ERL_MAX_ETS_TABLES</c> before starting the Erlang + runtime system. This hard limit has been removed, but it + is currently useful to set the <c>ERL_MAX_ETS_TABLES</c> + anyway. It should be set to an approximate of the maximum + amount of tables used. This since an internal table for + named tables is sized using this value. If large amounts + of named tables are used and <c>ERL_MAX_ETS_TABLES</c> + hasn't been increased, the performance of named table + lookup will degrade. </p> </note> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14094</p> + </item> + <item> + <p><c>take/2</c> has been added to <c>dict</c>, + <c>orddict</c>, and <c>gb_trees</c>. <c>take_any/2</c> + has been added to <c>gb_trees</c>.</p> + <p> + Own Id: OTP-14102</p> + </item> + <item> + <p> + Extend gen_event API to handle options as well.</p> + <p> + Own Id: OTP-14123</p> + </item> + <item> + <p> + Advice on how to tune the supervisor restart frequency + (intensity and period) is added to System Documentation - + Design Principles - Supervisor Behaviour.</p> + <p> + Own Id: OTP-14168 Aux Id: PR-1289 </p> + </item> + <item> + <p> + gen_fsm is deprecated and is replaced by gen_statem, + however for backwards compatibility reasons gen_fsm may + continue to exist as an undocumented feature for quite + some time.</p> + <p> + Own Id: OTP-14183</p> + </item> + <item> + <p>The shell functions <c>c/1</c> and <c>c/2</c> have + been extended so that if the argument is a module name + instead of a file name, it automatically locates the + .beam file and the corresponding source file, and then + recompiles the module using the same compiler options + (plus any options passed to c/2). If compilation fails, + the old beam file is preserved. Also adds <c>c(Mod, Opts, + Filter)</c>, where the Filter argument allows you to + remove old compiler options before the new options are + added.</p> <p>New utility functions <c>file_find/2/3</c> + and <c>find_source/1/2/3</c> have been added to + <c>filelib</c>.</p> + <p> + Own Id: OTP-14190</p> + </item> + <item> + <p><c>erl_tar</c> in previous versions of OTP only + supports the USTAR format. That limited path names to at + most 255 bytes, and did not support Unicode characters in + names in a portable way.</p> + <p><c>erl_tar</c> now has support for reading tar + archives in the formats currently in common use, such as + v7, STAR, USTAR, PAX, and GNU tar's extensions to the + STAR/USTAR format. When writing tar archives, + <c>erl_tar</c> can now write them in the <c>PAX</c> + format if necessary (for example, to support very long + filenames or filenames with Unicode characters). If + possible, <c>erl_tar</c> will still write tar archives in + the USTAR for maximum portability.</p> + <p> + Own Id: OTP-14226</p> + </item> + <item> + <p><c>base64:mime_decode/1</c> has been optimized so that + it is now almost as fast as<c>base64:decode/1</c>; it + used be noticeably slower.</p> + <p> + Own Id: OTP-14245</p> + </item> + <item> + <p><c>erl_tar</c> will now strip any leading '<c>/</c>' + from pathnames when extracting files from a tar archive + and write a message to the error logger. There is also + new check for directory traversal attacks; if a relative + path points above the current working directory the + extraction will be aborted.</p> + <p> + Own Id: OTP-14278</p> + </item> + <item> + <p> Miscellaneous updates due to atoms containing + arbitrary Unicode characters. </p> + <p> + Own Id: OTP-14285</p> + </item> + <item> + <p> + The Crypto application now supports generation of + cryptographically strong random numbers (floats < 1.0 + and integer arbitrary ranges) as a plugin to the 'rand' + module.</p> + <p> + Own Id: OTP-14317 Aux Id: PR-1372 </p> + </item> + <item> + <p> + Add new function <c>ets:select_replace/2</c> which + performs atomic "compare-and-swap" operations for ETS + objects using match specifications.</p> + <p> + Own Id: OTP-14319 Aux Id: PR-1076 </p> + </item> + <item> + <p> The Erlang code linter checks for bad <c>dialyzer</c> + attributes. It also checks for bad type variables in type + declarations. </p> + <p> + Own Id: OTP-14323</p> + </item> + <item> + <p> Two new functions has been implemented in the + <c>rand</c> module; <c>normal/2</c> and + <c>normal_s/3</c>, that both produce normal distribution + (pseudo) random numbers with mean value and variance + according to arguments. </p> + <p> + Own Id: OTP-14328 Aux Id: PR-1382 </p> + </item> + <item> + <p> + Upgraded the OTP internal PCRE library from version 8.33 + to version 8.40. This library is used for implementation + of the <seealso marker="stdlib:re"><c>re</c></seealso> + regular expressions module.</p> + <p> + Besides various bug fixes, the new version allows for + better stack protection. In order to utilize this + feature, the stack size of normal scheduler threads is + now by default set to 128 kilo words on all platforms. + The stack size of normal scheduler threads can be set + upon system start by passing the <seealso + marker="erts:erl#sched_thread_stack_size"><c>+sss</c></seealso> + command line argument to the <seealso + marker="erts:erl"><c>erl</c></seealso> command.</p> + <p> + See <url + href="http://pcre.org/original/changelog.txt"><c>http://pcre.org/original/changelog.txt</c></url> + for information about changes made to PCRE between the + versions 8.33 and 8.40.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-14331 Aux Id: ERL-208 </p> + </item> + <item> + <p> + Added function <c>re:version/0</c> which returns + information about the OTP internal PCRE version used for + implementation of the <c>re</c> module.</p> + <p> + Own Id: OTP-14347 Aux Id: PR-1412 </p> + </item> + <item> + <p>The format of debug information that is stored in BEAM + files (when <c>debug_info</c> is used) has been changed. + The purpose of the change is to better support other + BEAM-based languages such as Elixir or LFE.</p> + <p>All tools included in OTP (dialyzer, debugger, cover, + and so on) will handle both the new format and the + previous format. Tools that retrieve the debug + information using <c>beam_lib:chunk(Beam, + [abstract_code])</c> will continue to work with both the + new and old format. Tools that call + <c>beam_lib:chunk(Beam, ["Abst"])</c> will not work with + the new format.</p> + <p>For more information, see the description of + <c>debug_info</c> in the documentation for + <c>beam_lib</c> and the description of the + <c>{debug_info,{Backend,Data}}</c> option in the + documentation for <c>compile</c>.</p> + <p> + Own Id: OTP-14369 Aux Id: PR-1367 </p> + </item> + <item> + <p> + Add option hibernate_after to gen_server, gen_statem and + gen_event. Also added to the deprecated gen_fsm + behaviour.</p> + <p> + Own Id: OTP-14405</p> + </item> + <item> + <p> The size of crash reports created by + <c>gen_server</c>, <c>gen_statem</c> and <c>proc_lib</c> + is limited with aid of the Kernel application variable + <c>error_logger_format_depth</c>. The purpose is to limit + the size of the messages sent to the <c>error_logger</c> + process when processes with huge message queues or states + crash. </p> <p>The crash report generated by + <c>proc_lib</c> includes the new tag + <c>message_queue_len</c>. The neighbour report also + includes the new tag <c>current_stacktrace</c>. Finally, + the neighbour report no longer includes the tags + <c>messages</c> and <c>dictionary</c>. </p> <p> The new + function <c>error_logger:get_format_depth/0</c> can be + used to retrieve the value of the Kernel application + variable <c>error_logger_format_depth</c>. </p> + <p> + Own Id: OTP-14417</p> + </item> + </list> + </section> + +</section> + <section><title>STDLIB 3.3</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/lib/stdlib/doc/src/proc_lib.xml b/lib/stdlib/doc/src/proc_lib.xml index 7939a0ef61..cb152d1935 100644 --- a/lib/stdlib/doc/src/proc_lib.xml +++ b/lib/stdlib/doc/src/proc_lib.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/proplists.xml b/lib/stdlib/doc/src/proplists.xml index 990d47b313..f9a54bf804 100644 --- a/lib/stdlib/doc/src/proplists.xml +++ b/lib/stdlib/doc/src/proplists.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2002</year><year>2016</year> + <year>2002</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/rand.xml b/lib/stdlib/doc/src/rand.xml index e06d7e467d..a68fb7d55f 100644 --- a/lib/stdlib/doc/src/rand.xml +++ b/lib/stdlib/doc/src/rand.xml @@ -66,7 +66,7 @@ <p>Jump function: equivalent to 2^64 calls</p> <p> This is a corrected version of the previous default algorithm, - that now has been superseeded by Xoroshiro116+ (<c>exrop</c>). + that now has been superseded by Xoroshiro116+ (<c>exrop</c>). Since there is no native 58 bit rotate instruction this algorithm executes a little (say < 15%) faster than <c>exrop</c>. See the diff --git a/lib/stdlib/doc/src/sets.xml b/lib/stdlib/doc/src/sets.xml index 4dc5d68151..4934bed365 100644 --- a/lib/stdlib/doc/src/sets.xml +++ b/lib/stdlib/doc/src/sets.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2000</year><year>2016</year> + <year>2000</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/string.xml b/lib/stdlib/doc/src/string.xml index dc83c40a9a..9d5edd9ecf 100644 --- a/lib/stdlib/doc/src/string.xml +++ b/lib/stdlib/doc/src/string.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -311,7 +311,9 @@ true</pre> <desc> <p> Returns the first codepoint in <c><anno>String</anno></c> - and the rest of <c><anno>String</anno></c> in the tail. + and the rest of <c><anno>String</anno></c> in the tail. Returns + an empty list if <c><anno>String</anno></c> is empty or an + <c>{error, String}</c> tuple if the next byte is invalid. </p> <p><em>Example:</em></p> <pre> @@ -326,7 +328,9 @@ true</pre> <desc> <p> Returns the first grapheme cluster in <c><anno>String</anno></c> - and the rest of <c><anno>String</anno></c> in the tail. + and the rest of <c><anno>String</anno></c> in the tail. Returns + an empty list if <c><anno>String</anno></c> is empty or an + <c>{error, String}</c> tuple if the next byte is invalid. </p> <p><em>Example:</em></p> <pre> diff --git a/lib/stdlib/doc/src/supervisor.xml b/lib/stdlib/doc/src/supervisor.xml index a42cfdd567..6d5065ca02 100644 --- a/lib/stdlib/doc/src/supervisor.xml +++ b/lib/stdlib/doc/src/supervisor.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml index 78840aaaf3..64d8789016 100644 --- a/lib/stdlib/doc/src/sys.xml +++ b/lib/stdlib/doc/src/sys.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -308,7 +308,7 @@ format to the file. The events are formatted with a function that is defined by the process that generated the event (with a call to <seealso marker="#handle_debug/4"><c>handle_debug/4</c></seealso>). - </p> + The file is opened with encoding UTF-8.</p> </desc> </func> diff --git a/lib/stdlib/doc/src/unicode.xml b/lib/stdlib/doc/src/unicode.xml index 382b253ba1..e86f45431f 100644 --- a/lib/stdlib/doc/src/unicode.xml +++ b/lib/stdlib/doc/src/unicode.xml @@ -5,7 +5,7 @@ <header> <copyright> <year>1996</year> - <year>2016</year> + <year>2017</year> <holder>Ericsson AB, All Rights Reserved</holder> </copyright> <legalnotice> diff --git a/lib/stdlib/doc/src/unicode_usage.xml b/lib/stdlib/doc/src/unicode_usage.xml index 6af2fa9fa3..26dc46719e 100644 --- a/lib/stdlib/doc/src/unicode_usage.xml +++ b/lib/stdlib/doc/src/unicode_usage.xml @@ -5,7 +5,7 @@ <header> <copyright> <year>1999</year> - <year>2016</year> + <year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> |