diff options
Diffstat (limited to 'lib/stdlib')
24 files changed, 625 insertions, 316 deletions
diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile index 26602764a6..93eac8220d 100644 --- a/lib/stdlib/doc/src/Makefile +++ b/lib/stdlib/doc/src/Makefile @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1997-2016. All Rights Reserved. +# Copyright Ericsson AB 1997-2017. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. @@ -103,7 +103,7 @@ XML_REF3_FILES = \ XML_REF6_FILES = stdlib_app.xml -XML_PART_FILES = part.xml part_notes.xml part_notes_history.xml +XML_PART_FILES = part.xml XML_CHAPTER_FILES = io_protocol.xml unicode_usage.xml notes.xml notes_history.xml assert_hrl.xml BOOK_FILES = book.xml @@ -131,9 +131,9 @@ SPECS_FILES = $(XML_REF3_FILES:%.xml=$(SPECDIR)/specs_%.xml) TOP_SPECS_FILE = specs.xml # ---------------------------------------------------- -# FLAGS +# FLAGS # ---------------------------------------------------- -XML_FLAGS += +XML_FLAGS += SPECS_FLAGS = -I../../include -I../../../kernel/include @@ -150,7 +150,7 @@ html: $(HTML_REF_MAN_FILE) man: $(MAN3_FILES) $(MAN6_FILES) -debug opt: +debug opt: clean clean_docs: rm -rf $(HTMLDIR)/* @@ -158,7 +158,7 @@ clean clean_docs: rm -f $(MAN6DIR)/* rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo) rm -f $(SPECDIR)/* - rm -f errs core *~ + rm -f errs core *~ $(SPECDIR)/specs_erl_id_trans.xml: escript $(SPECS_EXTRACTOR) $(SPECS_FLAGS) \ @@ -166,7 +166,7 @@ $(SPECDIR)/specs_erl_id_trans.xml: # ---------------------------------------------------- # Release Target -# ---------------------------------------------------- +# ---------------------------------------------------- include $(ERL_TOP)/make/otp_release_targets.mk release_docs_spec: docs diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml index 95af2b77a5..576959b1c8 100644 --- a/lib/stdlib/doc/src/ets.xml +++ b/lib/stdlib/doc/src/ets.xml @@ -325,7 +325,7 @@ <p><c><anno>Acc0</anno></c> is returned if the table is empty. This function is similar to <seealso marker="lists#foldl/3"><c>lists:foldl/3</c></seealso>. - The table elements are traversed is unspecified order, except for + The table elements are traversed in an unspecified order, except for <c>ordered_set</c> tables, where they are traversed first to last.</p> <p>If <c><anno>Function</anno></c> inserts objects into the table, or another @@ -341,7 +341,7 @@ <p><c><anno>Acc0</anno></c> is returned if the table is empty. This function is similar to <seealso marker="lists#foldr/3"><c>lists:foldr/3</c></seealso>. - The table elements are traversed is unspecified order, except for + The table elements are traversed in an unspecified order, except for <c>ordered_set</c> tables, where they are traversed last to first.</p> <p>If <c><anno>Function</anno></c> inserts objects into the table, or another diff --git a/lib/stdlib/doc/src/fascicules.xml b/lib/stdlib/doc/src/fascicules.xml deleted file mode 100644 index 0ded9007e0..0000000000 --- a/lib/stdlib/doc/src/fascicules.xml +++ /dev/null @@ -1,18 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE fascicules SYSTEM "fascicules.dtd"> - -<fascicules> - <fascicule file="part" href="part_frame.html" entry="no"> - STDLIB User's Guide - </fascicule> - <fascicule file="ref_man" href="ref_man_frame.html" entry="yes"> - Reference Manual - </fascicule> - <fascicule file="part_notes" href="part_notes_frame.html" entry="no"> - Release Notes - </fascicule> - <fascicule file="" href="../../../../doc/print.html" entry="no"> - Off-Print - </fascicule> -</fascicules> - diff --git a/lib/stdlib/doc/src/filelib.xml b/lib/stdlib/doc/src/filelib.xml index 80c4acffdb..5e631aac21 100644 --- a/lib/stdlib/doc/src/filelib.xml +++ b/lib/stdlib/doc/src/filelib.xml @@ -45,6 +45,30 @@ <p>For more information about raw filenames, see the <seealso marker="kernel:file"><c>file</c></seealso> module.</p> + + <note> + <p> + Functionality in this module generally assumes valid input and + does not necessarily fail on input that does not use a valid + encoding, but may instead very likely produce invalid output. + </p> + <p> + File operations used to accept filenames containing + null characters (integer value zero). This caused + the name to be truncated and in some cases arguments + to primitive operations to be mixed up. Filenames + containing null characters inside the filename + are now <em>rejected</em> and will cause primitive + file operations to fail. + </p> + </note> + <warning><p> + Currently null characters at the end of the filename + will be accepted by primitive file operations. Such + filenames are however still documented as invalid. The + implementation will also change in the future and + reject such filenames. + </p></warning> </description> <datatypes> @@ -193,6 +217,11 @@ <p>Other characters represent themselves. Only filenames that have exactly the same character in the same position match. Matching is case-sensitive, for example, "a" does not match "A".</p> + <p>Directory separators must always be written as <c>/</c>, even on + Windows.</p> + <p>A character preceded by <c>\</c> loses its special meaning. Note + that <c>\</c> must be written as <c>\\</c> in a string literal. + For example, "\\?*" will match any filename starting with <c>?</c>.</p> <p>Notice that multiple "*" characters are allowed (as in Unix wildcards, but opposed to Windows/DOS wildcards).</p> <p><em>Examples:</em></p> diff --git a/lib/stdlib/doc/src/filename.xml b/lib/stdlib/doc/src/filename.xml index 14fd5ef787..d2608ad542 100644 --- a/lib/stdlib/doc/src/filename.xml +++ b/lib/stdlib/doc/src/filename.xml @@ -46,7 +46,10 @@ filename by removing redundant directory separators, use <seealso marker="#join/1"><c>join/1</c></seealso>.</p> - <p>The module supports raw filenames in the way that if a binary is + <p> + The module supports + <seealso marker="unicode_usage#notes-about-raw-filenames">raw + filenames</seealso> in the way that if a binary is present, or the filename cannot be interpreted according to the return value of <seealso marker="kernel:file#native_name_encoding/0"> <c>file:native_name_encoding/0</c></seealso>, a raw filename is also @@ -56,6 +59,30 @@ (the join operation is performed of course). For more information about raw filenames, see the <seealso marker="kernel:file"><c>file</c></seealso> module.</p> + + <note> + <p> + Functionality in this module generally assumes valid input and + does not necessarily fail on input that does not use a valid + encoding, but may instead very likely produce invalid output. + </p> + <p> + File operations used to accept filenames containing + null characters (integer value zero). This caused + the name to be truncated and in some cases arguments + to primitive operations to be mixed up. Filenames + containing null characters inside the filename + are now <em>rejected</em> and will cause primitive + file operations to fail. + </p> + </note> + <warning><p> + Currently null characters at the end of the filename + will be accepted by primitive file operations. Such + filenames are however still documented as invalid. The + implementation will also change in the future and + reject such filenames. + </p></warning> </description> <datatypes> <datatype> @@ -555,6 +582,7 @@ unsafe</pre> ["a:/","msdev","include"]</pre> </desc> </func> + </funcs> </erlref> diff --git a/lib/stdlib/doc/src/gen_statem.xml b/lib/stdlib/doc/src/gen_statem.xml index 8de6ed754f..4a824f073e 100644 --- a/lib/stdlib/doc/src/gen_statem.xml +++ b/lib/stdlib/doc/src/gen_statem.xml @@ -1329,7 +1329,7 @@ handle_event(_, _, State, Data) -> <c><anno>T</anno></c> is the time-out time. <c>{clean_timeout,<anno>T</anno>}</c> works like just <c>T</c> described in the note above - and uses a proxy process for <c>T < infinity</c>, + and uses a proxy process while <c>{dirty_timeout,<anno>T</anno>}</c> bypasses the proxy process which is more lightweight. </p> @@ -1339,8 +1339,12 @@ handle_event(_, _, State, Data) -> with <c>{dirty_timeout,<anno>T</anno>}</c> to avoid that the calling process dies when the call times out, you will have to be prepared to handle - a late reply. - So why not just let the calling process die? + a late reply. Note that there is an odd chance + to get a late reply even with + <c>{dirty_timeout,infinity}</c> or <c>infinity</c> + for example in the event of network problems. + So why not just let the calling process die + by not catching the exception? </p> </note> <p> diff --git a/lib/stdlib/doc/src/notes.xml b/lib/stdlib/doc/src/notes.xml index 604d758db3..d396f1de8f 100644 --- a/lib/stdlib/doc/src/notes.xml +++ b/lib/stdlib/doc/src/notes.xml @@ -31,6 +31,56 @@ </header> <p>This document describes the changes made to the STDLIB application.</p> +<section><title>STDLIB 3.4.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fix a bug in the Erlang shell where recursively + defined records with typed fields could cause a loop. + </p> + <p> + Own Id: OTP-14488 Aux Id: PR-1489 </p> + </item> + <item> + <p> + Make edlin handle grapheme clusters instead of codepoints + to improve the handling multi-codepoints characters.</p> + <p> + Own Id: OTP-14542</p> + </item> + <item> + <p>There could be false warnings for + <c>erlang:get_stacktrace/0</c> being used outside of a + <c>try</c> block when using multiple <c>catch</c> + clauses.</p> + <p> + Own Id: OTP-14600 Aux Id: ERL-478 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> The Erlang code linter no longer checks that the + functions mentioned in <c>nowarn_deprecated_function</c> + options are declared in the module. </p> + <p> + Own Id: OTP-14378</p> + </item> + <item> + <p> + General Unicode improvements.</p> + <p> + Own Id: OTP-14462</p> + </item> + </list> + </section> + +</section> + <section><title>STDLIB 3.4.1</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/lib/stdlib/doc/src/part_notes.xml b/lib/stdlib/doc/src/part_notes.xml deleted file mode 100644 index 461de749dd..0000000000 --- a/lib/stdlib/doc/src/part_notes.xml +++ /dev/null @@ -1,39 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE part SYSTEM "part.dtd"> - -<part xmlns:xi="http://www.w3.org/2001/XInclude"> - <header> - <copyright> - <year>2004</year><year>2016</year> - <holder>Ericsson AB. All Rights Reserved.</holder> - </copyright> - <legalnotice> - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - - </legalnotice> - - <title>STDLIB Release Notes</title> - <prepared></prepared> - <docno></docno> - <date></date> - <rev></rev> - </header> - <description> - <p>The Standard Erlang Libraries application, <em>STDLIB</em>, - contains modules for manipulating lists, strings and files etc.</p> - <p>For information about older versions, see - <url href="part_notes_history_frame.html">Release Notes History</url>.</p> - </description> - <xi:include href="notes.xml"/> -</part> - diff --git a/lib/stdlib/doc/src/part_notes_history.xml b/lib/stdlib/doc/src/part_notes_history.xml deleted file mode 100644 index 8fd048a41e..0000000000 --- a/lib/stdlib/doc/src/part_notes_history.xml +++ /dev/null @@ -1,39 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE part SYSTEM "part.dtd"> - -<part> - <header> - <copyright> - <year>2006</year> - <year>2016</year> - <holder>Ericsson AB, All Rights Reserved</holder> - </copyright> - <legalnotice> - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - - The Initial Developer of the Original Code is Ericsson AB. - </legalnotice> - - <title>STDLIB Release Notes History</title> - <prepared></prepared> - <docno></docno> - <date></date> - <rev></rev> - </header> - <description> - <p>The Standard Erlang Libraries application, <em>STDLIB</em>, - contains modules for manipulating lists, strings and files etc.</p> - </description> - <include file="notes_history"></include> -</part> - diff --git a/lib/stdlib/doc/src/unicode_usage.xml b/lib/stdlib/doc/src/unicode_usage.xml index 26dc46719e..789e063c12 100644 --- a/lib/stdlib/doc/src/unicode_usage.xml +++ b/lib/stdlib/doc/src/unicode_usage.xml @@ -719,8 +719,8 @@ Eshell V5.10.1 (abort with ^G) </section> <section> - <title>Unicode Filenames</title> <marker id="unicode_file_names"/> + <title>Unicode Filenames</title> <p>Most modern operating systems support Unicode filenames in some way. There are many different ways to do this and Erlang by default treats the different approaches differently:</p> @@ -855,8 +855,12 @@ Eshell V5.10.1 (abort with ^G) </note> <section> - <title>Notes About Raw Filenames</title> <marker id="notes-about-raw-filenames"/> + <title>Notes About Raw Filenames</title> + <note><p> + Note that raw filenames <em>not</em> necessarily are encoded the + same way as on the OS level. + </p></note> <p>Raw filenames were introduced together with Unicode filename support in ERTS 5.8.2 (Erlang/OTP R14B01). The reason "raw filenames" were introduced in the system was diff --git a/lib/stdlib/doc/src/user_guide.gif b/lib/stdlib/doc/src/user_guide.gif Binary files differdeleted file mode 100644 index e6275a803d..0000000000 --- a/lib/stdlib/doc/src/user_guide.gif +++ /dev/null diff --git a/lib/stdlib/src/filelib.erl b/lib/stdlib/src/filelib.erl index d7c313f214..0f90b3fc33 100644 --- a/lib/stdlib/src/filelib.erl +++ b/lib/stdlib/src/filelib.erl @@ -365,11 +365,18 @@ do_list_dir(Dir, Mod) -> eval_list_dir(Dir, Mod). %%% Compiling a wildcard. + +%% Define characters used for escaping a \. +-define(ESCAPE_PREFIX, $@). +-define(ESCAPE_CHARACTER, [?ESCAPE_PREFIX,$e]). +-define(ESCAPED_ESCAPE_PREFIX, [?ESCAPE_PREFIX,?ESCAPE_PREFIX]). + %% Only for debugging. compile_wildcard(Pattern) when is_list(Pattern) -> {compiled_wildcard,?HANDLE_ERROR(compile_wildcard(Pattern, "."))}. -compile_wildcard(Pattern, Cwd0) -> +compile_wildcard(Pattern0, Cwd0) -> + Pattern = convert_escapes(Pattern0), [Root|Rest] = filename:split(Pattern), case filename:pathtype(Root) of relative -> @@ -409,7 +416,8 @@ compile_join({cwd,Cwd}, File0) -> compile_join({root,PrefixLen,Root}, File) -> {root,PrefixLen,filename:join(Root, File)}. -compile_part(Part) -> +compile_part(Part0) -> + Part = wrap_escapes(Part0), compile_part(Part, false, []). compile_part_to_sep(Part) -> @@ -445,6 +453,8 @@ compile_part([${|Rest], Upto, Result) -> error -> compile_part(Rest, Upto, [${|Result]) end; +compile_part([{escaped,X}|Rest], Upto, Result) -> + compile_part(Rest, Upto, [X|Result]); compile_part([X|Rest], Upto, Result) -> compile_part(Rest, Upto, [X|Result]); compile_part([], _Upto, Result) -> @@ -461,6 +471,8 @@ compile_charset1([Lower, $-, Upper|Rest], Ordset) when Lower =< Upper -> compile_charset1(Rest, compile_range(Lower, Upper, Ordset)); compile_charset1([$]|Rest], Ordset) -> {ok, {one_of, gb_sets:from_ordset(Ordset)}, Rest}; +compile_charset1([{escaped,X}|Rest], Ordset) -> + compile_charset1(Rest, ordsets:add_element(X, Ordset)); compile_charset1([X|Rest], Ordset) -> compile_charset1(Rest, ordsets:add_element(X, Ordset)); compile_charset1([], _Ordset) -> @@ -486,6 +498,32 @@ compile_alt(Pattern, Result) -> error end. +%% Convert backslashes to an illegal Unicode character to +%% protect in from filename:split/1. + +convert_escapes([?ESCAPE_PREFIX|T]) -> + ?ESCAPED_ESCAPE_PREFIX ++ convert_escapes(T); +convert_escapes([$\\|T]) -> + ?ESCAPE_CHARACTER ++ convert_escapes(T); +convert_escapes([H|T]) -> + [H|convert_escapes(T)]; +convert_escapes([]) -> + []. + +%% Wrap each escape in a tuple to remove the special meaning for +%% the character that follows. + +wrap_escapes(?ESCAPED_ESCAPE_PREFIX ++ T) -> + [?ESCAPE_PREFIX|wrap_escapes(T)]; +wrap_escapes(?ESCAPE_CHARACTER ++ [C|T]) -> + [{escaped,C}|wrap_escapes(T)]; +wrap_escapes(?ESCAPE_CHARACTER) -> + []; +wrap_escapes([H|T]) -> + [H|wrap_escapes(T)]; +wrap_escapes([]) -> + []. + badpattern(Reason) -> error({badpattern,Reason}). diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl index 63cfeae57b..919f8f20e6 100644 --- a/lib/stdlib/src/filename.erl +++ b/lib/stdlib/src/filename.erl @@ -34,6 +34,38 @@ %% we flatten the arguments immediately on function entry as that makes %% it easier to ensure that the code works. +%% +%% *** Requirements on Raw Filename Format *** +%% +%% These requirements are due to the 'filename' module +%% in stdlib. This since it is documented that it +%% should be able to operate on raw filenames as well +%% as ordinary filenames. +%% +%% A raw filename *must* be a byte sequence where: +%% 1. Codepoints 0-127 (7-bit ascii) *must* be encoded +%% as a byte with the corresponding value. That is, +%% the most significant bit in the byte encoding the +%% codepoint is never set. +%% 2. Codepoints greater than 127 *must* be encoded +%% with the most significant bit set in *every* byte +%% encoding it. +%% +%% Latin1 and UTF-8 meet these requirements while +%% UTF-16 and UTF-32 don't. +%% +%% On Windows filenames are natively stored as malformed +%% UTF-16LE (lonely surrogates may appear). A more correct +%% description than UTF-16 would be an array of 16-bit +%% words... In order to meet the requirements of the +%% raw file format we convert the malformed UTF-16LE to +%% malformed UTF-8 which meet the requirements. +%% +%% Note that these requirements are today only OTP +%% internal (erts-stdlib internal) requirements that +%% could be changed. +%% + -export([absname/1, absname/2, absname_join/2, basename/1, basename/2, dirname/1, extension/1, join/1, join/2, pathtype/1, @@ -41,6 +73,7 @@ safe_relative_path/1]). -export([find_src/1, find_src/2]). % deprecated -export([basedir/2, basedir/3]). +-export([validate/1]). %% Undocumented and unsupported exports. -export([append/2]). @@ -1135,3 +1168,72 @@ basedir_os_type() -> {win32,_} -> windows; _ -> linux end. + +%% +%% validate/1 +%% + +-spec validate(FileName) -> boolean() when + FileName :: file:name_all(). + +validate(FileName) when is_binary(FileName) -> + %% Raw filename... + validate_bin(FileName); +validate(FileName) when is_list(FileName); + is_atom(FileName) -> + validate_list(FileName, + file:native_name_encoding(), + os:type()). + +validate_list(FileName, Enc, Os) -> + try + true = validate_list(FileName, Enc, Os, 0) > 0 + catch + _ : _ -> false + end. + +validate_list([], _Enc, _Os, Chars) -> + Chars; +validate_list(C, Enc, Os, Chars) when is_integer(C) -> + validate_char(C, Enc, Os), + Chars+1; +validate_list(A, Enc, Os, Chars) when is_atom(A) -> + validate_list(atom_to_list(A), Enc, Os, Chars); +validate_list([H|T], Enc, Os, Chars) -> + NewChars = validate_list(H, Enc, Os, Chars), + validate_list(T, Enc, Os, NewChars). + +%% C is always an integer... +% validate_char(C, _, _) when not is_integer(C) -> +% throw(invalid); +validate_char(C, _, _) when C < 1 -> + throw(invalid); %% No negative or null characters... +validate_char(C, latin1, _) when C > 255 -> + throw(invalid); +validate_char(C, utf8, _) when C >= 16#110000 -> + throw(invalid); +validate_char(C, utf8, {win32, _}) when C > 16#ffff -> + throw(invalid); %% invalid win wchar... +validate_char(_C, utf8, {win32, _}) -> + ok; %% Range below is accepted on windows... +validate_char(C, utf8, _) when 16#D800 =< C, C =< 16#DFFF -> + throw(invalid); %% invalid unicode range... +validate_char(_, _, _) -> + ok. + +validate_bin(Bin) -> + %% Raw filename. That is, we do not interpret + %% the encoding, but we still do not accept + %% null characters... + try + true = validate_bin(Bin, 0) > 0 + catch + _ : _ -> false + end. + +validate_bin(<<>>, Bs) -> + Bs; +validate_bin(<<0, _Rest/binary>>, _Bs) -> + throw(invalid); %% No null characters allowed... +validate_bin(<<_B, Rest/binary>>, Bs) -> + validate_bin(Rest, Bs+1). diff --git a/lib/stdlib/src/gen_statem.erl b/lib/stdlib/src/gen_statem.erl index 1110d18af6..cd6312855d 100644 --- a/lib/stdlib/src/gen_statem.erl +++ b/lib/stdlib/src/gen_statem.erl @@ -296,7 +296,7 @@ (Reason :: term()). %% Format the callback module state in some sensible that is -%% often condensed way. For StatusOption =:= 'normal' the perferred +%% often condensed way. For StatusOption =:= 'normal' the preferred %% return term is [{data,[{"State",FormattedState}]}], and for %% StatusOption =:= 'terminate' it is just FormattedState. -callback format_status( @@ -510,8 +510,6 @@ call(ServerRef, Request, Timeout) -> parse_timeout(Timeout) -> case Timeout of - {clean_timeout,infinity} -> - {dirty_timeout,infinity}; {clean_timeout,_} -> Timeout; {dirty_timeout,_} -> diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src index 3c449d3cb9..ab0824ca17 100644 --- a/lib/stdlib/src/stdlib.app.src +++ b/lib/stdlib/src/stdlib.app.src @@ -107,7 +107,7 @@ dets]}, {applications, [kernel]}, {env, []}, - {runtime_dependencies, ["sasl-3.0","kernel-5.0","erts-9.0","crypto-3.3", + {runtime_dependencies, ["sasl-3.0","kernel-6.0","erts-10.0","crypto-3.3", "compiler-5.0"]} ]}. diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile index 7b79dcf04d..523cb95065 100644 --- a/lib/stdlib/test/Makefile +++ b/lib/stdlib/test/Makefile @@ -69,6 +69,7 @@ MODULES= \ sets_test_lib \ sofs_SUITE \ stdlib_SUITE \ + stdlib_bench_SUITE \ string_SUITE \ supervisor_1 \ supervisor_2 \ @@ -146,7 +147,7 @@ release_spec: opt release_tests_spec: make_emakefile $(INSTALL_DIR) "$(RELSYSDIR)" - $(INSTALL_DATA) stdlib.spec $(EMAKEFILE) \ + $(INSTALL_DATA) stdlib.spec stdlib_bench.spec $(EMAKEFILE) \ $(ERL_FILES) $(COVERFILE) "$(RELSYSDIR)" chmod -R u+w "$(RELSYSDIR)" @tar cf - *_SUITE_data | (cd "$(RELSYSDIR)"; tar xf -) diff --git a/lib/stdlib/test/filelib_SUITE.erl b/lib/stdlib/test/filelib_SUITE.erl index c94821bc75..1236fe45f4 100644 --- a/lib/stdlib/test/filelib_SUITE.erl +++ b/lib/stdlib/test/filelib_SUITE.erl @@ -120,7 +120,7 @@ wcc(Wc, Error) -> do_wildcard_1(Dir, Wcf0) -> do_wildcard_2(Dir, Wcf0), Wcf = fun(Wc0) -> - Wc = filename:join(Dir, Wc0), + Wc = Dir ++ "/" ++ Wc0, L = Wcf0(Wc), [subtract_dir(N, Dir) || N <- L] end, @@ -268,8 +268,37 @@ do_wildcard_9(Dir, Wcf) -> %% Cleanup. del(Files), [ok = file:del_dir(D) || D <- lists:reverse(Dirs)], - ok. + do_wildcard_10(Dir, Wcf). + +%% ERL-451/OTP-14577: Escape characters using \\. +do_wildcard_10(Dir, Wcf) -> + All0 = ["{abc}","abc","def","---","z--","@a,b","@c"], + All = case os:type() of + {unix,_} -> + %% '?' is allowed in file names on Unix, but + %% not on Windows. + ["?q"|All0]; + _ -> + All0 + end, + Files = mkfiles(lists:reverse(All), Dir), + + ["{abc}"] = Wcf("\\{a*"), + ["{abc}"] = Wcf("\\{abc}"), + ["abc","def","z--"] = Wcf("[a-z]*"), + ["---","abc","z--"] = Wcf("[a\\-z]*"), + ["@a,b","@c"] = Wcf("@{a\\,b,c}"), + ["@c"] = Wcf("@{a,b,c}"), + + case os:type() of + {unix,_} -> + ["?q"] = Wcf("\\?q"); + _ -> + [] = Wcf("\\?q") + end, + del(Files), + ok. fold_files(Config) when is_list(Config) -> Dir = filename:join(proplists:get_value(priv_dir, Config), "fold_files"), diff --git a/lib/stdlib/test/rand_SUITE.erl b/lib/stdlib/test/rand_SUITE.erl index 432293b656..f69d42551e 100644 --- a/lib/stdlib/test/rand_SUITE.erl +++ b/lib/stdlib/test/rand_SUITE.erl @@ -80,7 +80,7 @@ test() -> end, Tests). algs() -> - [exs64, exsplus, exsp, exrop, exs1024, exs1024s]. + [exrop, exsp, exs1024s, exs64, exsplus, exs1024]. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -459,213 +459,233 @@ measure(Config) -> {skip,{will_not_run_in_scaled_time,Scale}} end. +-define(CHECK_UNIFORM_RANGE(Gen, Range, X, St), + case (Gen) of + {(X), (St)} when is_integer(X), 1 =< (X), (X) =< (Range) -> + St + end). +-define(CHECK_UNIFORM(Gen, X, St), + case (Gen) of + {(X), (St)} when is_float(X), 0.0 =< (X), (X) < 1.0 -> + St + end). +-define(CHECK_UNIFORM_NZ(Gen, X, St), + case (Gen) of + {(X), (St)} when is_float(X), 0.0 < (X), (X) =< 1.0 -> + St + end). +-define(CHECK_NORMAL(Gen, X, St), + case (Gen) of + {(X), (St)} when is_float(X) -> + St + end). + do_measure(_Config) -> - Algos = + Algs = + algs() ++ try crypto:strong_rand_bytes(1) of - <<_>> -> [crypto64, crypto] + <<_>> -> [crypto64, crypto_cache, crypto] catch error:low_entropy -> []; error:undef -> [] - end ++ algs(), + end, %% - ct:pal("RNG uniform integer performance~n",[]), - TMark1 = + ct:pal("~nRNG uniform integer range 10000 performance~n",[]), + _ = measure_1( - random, fun (_) -> 10000 end, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), - _ = - [measure_1( - Algo, - fun (_) -> 10000 end, - TMark1, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% - ct:pal("~nRNG uniform integer half range performance~n",[]), - HalfRangeFun = fun (State) -> half_range(State) end, - TMark2 = - measure_1( - random, - HalfRangeFun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), + ct:pal("~nRNG uniform integer 32 bit performance~n",[]), _ = - [measure_1( - Algo, - HalfRangeFun, - TMark2, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], - %% - ct:pal("~nRNG uniform integer half range + 1 performance~n",[]), - HalfRangePlus1Fun = fun (State) -> half_range(State) + 1 end, - TMark3 = measure_1( - random, - HalfRangePlus1Fun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), + fun (_) -> 1 bsl 32 end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), + %% + ct:pal("~nRNG uniform integer half range + 1 performance~n",[]), _ = - [measure_1( - Algo, - HalfRangePlus1Fun, - TMark3, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + measure_1( + fun (State) -> half_range(State) + 1 end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% ct:pal("~nRNG uniform integer full range - 1 performance~n",[]), - FullRangeMinus1Fun = fun (State) -> (half_range(State) bsl 1) - 1 end, - TMark4 = - measure_1( - random, - FullRangeMinus1Fun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), _ = - [measure_1( - Algo, - FullRangeMinus1Fun, - TMark4, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + measure_1( + fun (State) -> (half_range(State) bsl 1) - 1 end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% ct:pal("~nRNG uniform integer full range performance~n",[]), - FullRangeFun = fun (State) -> half_range(State) bsl 1 end, - TMark5 = - measure_1( - random, - FullRangeFun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), _ = - [measure_1( - Algo, - FullRangeFun, - TMark5, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + measure_1( + fun (State) -> half_range(State) bsl 1 end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% ct:pal("~nRNG uniform integer full range + 1 performance~n",[]), - FullRangePlus1Fun = fun (State) -> (half_range(State) bsl 1) + 1 end, - TMark6 = - measure_1( - random, - FullRangePlus1Fun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), _ = - [measure_1( - Algo, - FullRangePlus1Fun, - TMark6, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + measure_1( + fun (State) -> (half_range(State) bsl 1) + 1 end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% ct:pal("~nRNG uniform integer double range performance~n",[]), - DoubleRangeFun = fun (State) -> half_range(State) bsl 2 end, - TMark7 = - measure_1( - random, - DoubleRangeFun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), _ = - [measure_1( - Algo, - DoubleRangeFun, - TMark7, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + measure_1( + fun (State) -> + half_range(State) bsl 2 + end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% ct:pal("~nRNG uniform integer double range + 1 performance~n",[]), - DoubleRangePlus1Fun = fun (State) -> (half_range(State) bsl 2) + 1 end, - TMark8 = + _ = measure_1( - random, - DoubleRangePlus1Fun, - undefined, - fun (Range, State) -> - {int, random:uniform_s(Range, State)} - end), + fun (State) -> + (half_range(State) bsl 2) + 1 + end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), + %% + ct:pal("~nRNG uniform integer 64 bit performance~n",[]), _ = - [measure_1( - Algo, - DoubleRangePlus1Fun, - TMark8, - fun (Range, State) -> - {int, rand:uniform_s(Range, State)} - end) || Algo <- Algos], + measure_1( + fun (_) -> 1 bsl 64 end, + fun (State, Range, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM_RANGE( + Mod:uniform_s(Range, St0), Range, + X, St1) + end, + State) + end, + Algs), %% ct:pal("~nRNG uniform float performance~n",[]), - TMark9 = - measure_1( - random, + _ = measure_1( fun (_) -> 0 end, - undefined, - fun (_, State) -> - {uniform, random:uniform_s(State)} - end), - _ = - [measure_1( - Algo, - fun (_) -> 0 end, - TMark9, - fun (_, State) -> - {uniform, rand:uniform_s(State)} - end) || Algo <- Algos], + fun (State, _, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_UNIFORM(Mod:uniform_s(St0), X, St) + end, + State) + end, + Algs), %% ct:pal("~nRNG normal float performance~n",[]), - io:format("~.12w: not implemented (too few bits)~n", [random]), - _ = [measure_1( - Algo, - fun (_) -> 0 end, - TMark9, - fun (_, State) -> - {normal, rand:normal_s(State)} - end) || Algo <- Algos], + _ = measure_1( + fun (_) -> 0 end, + fun (State, _, Mod) -> + measure_loop( + fun (St0) -> + ?CHECK_NORMAL(Mod:normal_s(St0), X, St1) + end, + State) + end, + Algs), ok. -measure_1(Algo, RangeFun, TMark, Gen) -> +measure_loop(Fun, State) -> + measure_loop(Fun, State, ?LOOP). +%% +measure_loop(Fun, State, N) when 0 < N -> + measure_loop(Fun, Fun(State), N-1); +measure_loop(_, _, _) -> + ok. + +measure_1(RangeFun, Fun, Algs) -> + TMark = measure_1(RangeFun, Fun, hd(Algs), undefined), + [TMark] ++ + [measure_1(RangeFun, Fun, Alg, TMark) || Alg <- tl(Algs)]. + +measure_1(RangeFun, Fun, Alg, TMark) -> Parent = self(), - Seed = - case Algo of + {Mod, State} = + case Alg of crypto64 -> - crypto64_seed(); + {rand, crypto64_seed()}; + crypto_cache -> + {rand, crypto:rand_seed_alg(crypto_cache)}; crypto -> - crypto:rand_seed_s(); + {rand, crypto:rand_seed_s()}; random -> - random:seed(os:timestamp()), get(random_seed); + {random, random:seed(os:timestamp()), get(random_seed)}; _ -> - rand:seed_s(Algo) + {rand, rand:seed_s(Alg)} end, - Range = RangeFun(Seed), + Range = RangeFun(State), Pid = spawn_link( fun() -> - Fun = fun() -> measure_2(?LOOP, Range, Seed, Gen) end, - {Time, ok} = timer:tc(Fun), + {Time, ok} = timer:tc(fun () -> Fun(State, Range, Mod) end), Percent = case TMark of undefined -> 100; @@ -673,7 +693,7 @@ measure_1(Algo, RangeFun, TMark, Gen) -> end, io:format( "~.12w: ~p ns ~p% [16#~.16b]~n", - [Algo, (Time * 1000 + 500) div ?LOOP, Percent, Range]), + [Alg, (Time * 1000 + 500) div ?LOOP, Percent, Range]), Parent ! {self(), Time}, normal end), @@ -681,21 +701,6 @@ measure_1(Algo, RangeFun, TMark, Gen) -> {Pid, Msg} -> Msg end. -measure_2(N, Range, State0, Fun) when N > 0 -> - case Fun(Range, State0) of - {int, {Random, State}} - when is_integer(Random), Random >= 1, Random =< Range -> - measure_2(N-1, Range, State, Fun); - {uniform, {Random, State}} - when is_float(Random), 0.0 =< Random, Random < 1.0 -> - measure_2(N-1, Range, State, Fun); - {normal, {Random, State}} when is_float(Random) -> - measure_2(N-1, Range, State, Fun); - Res -> - exit({error, Res, State0}) - end; -measure_2(0, _, _, _) -> ok. - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% The jump sequence tests has two parts %% for those with the functional API (jump/1) diff --git a/lib/stdlib/test/stdlib.spec b/lib/stdlib/test/stdlib.spec index 3768e494b2..91712b8963 100644 --- a/lib/stdlib/test/stdlib.spec +++ b/lib/stdlib/test/stdlib.spec @@ -1 +1,2 @@ {suites,"../stdlib_test",all}. +{skip_suites,"../stdlib_test",stdlib_bench_SUITE, "bench only"}. diff --git a/lib/stdlib/test/stdlib_bench.spec b/lib/stdlib/test/stdlib_bench.spec new file mode 100644 index 0000000000..a5d1e1db80 --- /dev/null +++ b/lib/stdlib/test/stdlib_bench.spec @@ -0,0 +1,7 @@ +%% Needed to compile ,unicode_util_SUITE and string_SUITE... +{cases,"../stdlib_test",unicode_util_SUITE, []}. +{cases,"../stdlib_test",string_SUITE, []}. +{skip_suites,"../stdlib_test",unicode_util_SUITE, "bench only"}. +{skip_suites,"../stdlib_test",string_SUITE, "bench only"}. + +{suites,"../stdlib_test",[stdlib_bench_SUITE]}. diff --git a/lib/stdlib/test/stdlib_bench_SUITE.erl b/lib/stdlib/test/stdlib_bench_SUITE.erl new file mode 100644 index 0000000000..8670e7029c --- /dev/null +++ b/lib/stdlib/test/stdlib_bench_SUITE.erl @@ -0,0 +1,107 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2012-2016. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% + +%% +-module(stdlib_bench_SUITE). +-compile([export_all, nowarn_export_all]). +-include_lib("common_test/include/ct_event.hrl"). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]}]. + + +all() -> + [{group,unicode}]. + +groups() -> + [{unicode,[{repeat,5}], + [norm_nfc_list, norm_nfc_deep_l, norm_nfc_binary, + string_lexemes_list, string_lexemes_binary + ]}]. + +init_per_group(_GroupName, Config) -> + Config. + +end_per_group(_GroupName, Config) -> + Config. + +init_per_suite(Config) -> + Config. + +end_per_suite(Config) -> + Config. + +init_per_testcase(_Func, Conf) -> + Conf. + +end_per_testcase(_Func, _Conf) -> + ok. + + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +-define(REPEAT_NORM, 5). + +norm_nfc_list(Config) -> + Bin = norm_data(Config), + {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, list, Bin, ?REPEAT_NORM), + report(1000.0*Res / Mean). + +norm_nfc_deep_l(Config) -> + Bin = norm_data(Config), + {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, deep_l, Bin, ?REPEAT_NORM), + report(1000.0*Res / Mean). + +norm_nfc_binary(Config) -> + Bin = norm_data(Config), + {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, binary, Bin, ?REPEAT_NORM), + report(1000.0*Res / Mean). + + +string_lexemes_list(Config) -> + %% Use nth_lexeme instead of lexemes to avoid building a result of + %% large lists which causes large differences between test runs, gc? + Bin = norm_data(Config), + Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end, + {_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, list, Bin, 15), + report(1000.0*Res / Mean). + +string_lexemes_binary(Config) -> + %% Use nth_lexeme instead of lexemes to avoid building a result of + %% large lists which causes large differences between test runs, gc? + Bin = norm_data(Config), + Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end, + {_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, binary, Bin, ?REPEAT_NORM), + report(1000.0*Res / Mean). + +%%% +report(Tps) -> + ct_event:notify(#event{name = benchmark_data, + data = [{suite,"stdlib_unicode"},{value,round(Tps)}]}), + Tps. + +norm_data(Config) -> + DataDir0 = proplists:get_value(data_dir, Config), + DataDir = filename:join(lists:droplast(filename:split(DataDir0))), + File = filename:join([DataDir,"unicode_util_SUITE_data","NormalizationTest.txt"]), + {ok, Bin} = file:read_file(File), + Bin. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + diff --git a/lib/stdlib/test/string_SUITE.erl b/lib/stdlib/test/string_SUITE.erl index 90f980c0e5..05f18ef238 100644 --- a/lib/stdlib/test/string_SUITE.erl +++ b/lib/stdlib/test/string_SUITE.erl @@ -47,7 +47,7 @@ -export([to_upper_to_lower/1]). %% Run tests when debugging them --export([debug/0]). +-export([debug/0, time_func/4]). suite() -> [{ct_hooks,[ts_install_cth]}, @@ -728,7 +728,7 @@ do_measure(TestDir) -> {ok, Bin} = file:read_file(File), io:format("~p~n",[byte_size(Bin)]), Do = fun(Name, Func, Mode) -> - {N, Mean, Stddev, _} = time_func(Func, Mode, Bin), + {N, Mean, Stddev, _} = time_func(Func, Mode, Bin, 50), io:format("~10w ~6w ~6.2fms ±~4.2fms #~.2w gc included~n", [Name, Mode, Mean/1000, Stddev/1000, N]) end, @@ -938,19 +938,19 @@ needs_check(_) -> true. %%%% Timer stuff -time_func(Fun, Mode, Bin) -> +time_func(Fun, Mode, Bin, Repeat) -> timer:sleep(100), %% Let emulator catch up and clean things before test runs Self = self(), Pid = spawn_link(fun() -> Str = mode(Mode, Bin), - Self ! {self(),time_func(0,0,0, Fun, Str, undefined)} + Self ! {self(),time_func(0,0,0, Fun, Str, undefined, Repeat)} end), receive {Pid,Msg} -> Msg end. -time_func(N,Sum,SumSq, Fun, Str, _) when N < 50 -> +time_func(N,Sum,SumSq, Fun, Str, _, Repeat) when N < Repeat -> {Time, Res} = timer:tc(fun() -> Fun(Str) end), - time_func(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res); -time_func(N,Sum,SumSq, _, _, Res) -> + time_func(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res, Repeat); +time_func(N,Sum,SumSq, _, _, Res, _) -> Mean = round(Sum / N), Stdev = round(math:sqrt((SumSq - (Sum*Sum/N))/(N - 1))), {N, Mean, Stdev, Res}. diff --git a/lib/stdlib/test/unicode_util_SUITE.erl b/lib/stdlib/test/unicode_util_SUITE.erl index 03c24c7027..7dba0a2fd0 100644 --- a/lib/stdlib/test/unicode_util_SUITE.erl +++ b/lib/stdlib/test/unicode_util_SUITE.erl @@ -29,7 +29,9 @@ get/1, count/1]). --export([debug/0, id/1, bin_split/1, uc_loaded_size/0]). +-export([debug/0, id/1, bin_split/1, uc_loaded_size/0, + time_count/4 %% Used by stdlib_bench_SUITE + ]). suite() -> [{ct_hooks,[ts_install_cth]}, @@ -323,7 +325,7 @@ do_measure(Config) -> File = DataDir ++ "/NormalizationTest.txt", {ok, Bin} = file:read_file(File), Do = fun(Func, Mode) -> - {N, Mean, Stddev, Res} = time_count(Func, Mode, Bin), + {N, Mean, Stddev, Res} = time_count(Func, Mode, Bin, 10), io:format("~4w ~6w ~.10w ~.6wms ±~.2wms #~.2w~n", [Func, Mode, Res, Mean div 1000, Stddev div 1000, N]) end, @@ -345,19 +347,19 @@ uc_loaded_size([_|Rest]) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -time_count(Fun, Mode, Bin) -> +time_count(Fun, Mode, Bin, Repeat) -> timer:sleep(100), %% Let emulator catch up and clean things before test runs Self = self(), Pid = spawn_link(fun() -> Str = mode(Mode, Bin), - Self ! {self(),do_count(0,0,0, Fun, Str, undefined)} + Self ! {self(),do_count(0,0,0, Fun, Str, undefined, Repeat)} end), receive {Pid,Msg} -> Msg end. -do_count(N,Sum,SumSq, Fun, Str, _) when N < 10 -> +do_count(N,Sum,SumSq, Fun, Str, _, Repeat) when N < Repeat -> {Time, Res} = do_count(Fun, Str), - do_count(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res); -do_count(N,Sum,SumSq, _, _, Res) -> + do_count(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res, Repeat); +do_count(N,Sum,SumSq, _, _, Res, _) -> Mean = round(Sum / N), Stdev = round(math:sqrt((SumSq - (Sum*Sum/N))/(N - 1))), {N, Mean, Stdev, Res}. diff --git a/lib/stdlib/vsn.mk b/lib/stdlib/vsn.mk index 8a83cdec1e..48db5dc900 100644 --- a/lib/stdlib/vsn.mk +++ b/lib/stdlib/vsn.mk @@ -1 +1 @@ -STDLIB_VSN = 3.4.1 +STDLIB_VSN = 3.4.2 |
