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2010-02-15Fixed a case_clause error in the internal function escript:foldl/3.Håkan Mattsson
2010-02-12Merge branch 'jn/supervisor_child_count_only' into ccase/r13b04_devErlang/OTP
* jn/supervisor_child_count_only: Add count_children/1 to supervisor.erl to determine the number of OTP-8436 Added supervisor:count_children/1 to count the number of children being managed without the memory impact of which_children/1. (Thanks to Jay Nelson.)
2010-02-12Merge branch 'ks/stdlib-cleanups' into ccase/r13b04_devErlang/OTP
* ks/stdlib-cleanups: stdlib: clean up as suggested by tidier OTP-8435: ks/stdlib-cleanups
2010-02-10OTP-8434 Improved handling of typed records in escriptsHåkan Mattsson
2010-02-10Add count_children/1 to supervisor.erl to determine the number ofJay Nelson
children being managed without the memory impact of which_children/1 The function which_children/1 returns a list of the child processes currently being supervised, but it has the penalty of creating a new list thereby consuming more memory. In low memory situations it is often desirable to know which supervisor may have generated many processes, but the act of discovering the culprit should not cause the node to crash (or worse a different node if the kernel kills one randomly). The new function count_children/1 can give an indication of which supervisor is taxing resources the most without adding to the burden. Rather than creating a new list, it walks the supervisor's internal children structure using an accumulator function so that any used memory can be incrementally collected yet the resulting count can still be obtained. The return result of count_children/1 is a property list of counts containing: - {specs, Total_Num_Child_Specs} - {active, Num_Active_Child_Processes_Of_Supervisor_Or_Worker_Type} - {supervisors, Num_Supervisor_Type_Children_Including_Dead_Processes} - {workers, Num_Worker_Type_Children_Including_Dead_Processes} This patch was made in response to mailing list discussions of the problem diagnosing heavily taxed production systems. I cannot find the original request, but http://www.erlang.org/cgi-bin/ezmlm-cgi/4/35060 is my original post of the patch.
2010-02-10OTP-8418 user.erl (used in oldshell) is updated to handle unicode inPatrik Nyblom
prompt strings (io:get_line/{1,2}). io_lib is also updated to format prompts with the 't' modifier (i.e. ~ts instead of ~s).
2010-02-10Merge branch 'ks/erl_lint' into ccase/r13b04_devErlang/OTP
* ks/erl_lint: erl_lint_SUITE: adjust failing test case Allow recursive types and check for undefined types OTP-8421: ks/erl_lint
2010-02-10Support the configure option --enable-native-libsKostis Sagonas
2010-02-10stdlib: clean up as suggested by tidierKostis Sagonas
Hans Bolinder (the author/maintainer of qlc) prefers for readability reasons to use length/1 in a guard when it is known that the list is guaranteed to be short, so the change suggested by tidier for line 875 of qlc_pt has not been included.
2010-02-09Allow recursive types and check for undefined typesKostis Sagonas
Contains four kinds of changes: * Allows recursive types and type definitions to be in any order. * Because the checking is not performed from top to bottom, there is a separate pass which checks for undefined module-local types. * Behaviour callbacks which allow specs in them. * Clean up the code as suggested by tidier.
2010-02-05OTP-8393 The new function shell:prompt_func/1 and the new applicationHans Bolinder
configuration parameter shell_prompt_func can be used for customizing the Erlang shell prompt.
2010-02-01Minor corrections and clean-upsHans Bolinder
2010-02-01epp: change rules to choose the right version of a macroChristopher Faulet
Now, when we have only the constant definition of a macro (without arguments), we always use it. In all other cases, we try to find the exact matching definition. We throw an error if we don't find it.
2010-02-01epp: Add support of macros overloadingChristopher Faulet
This feature simplifies the definition of macros by avoiding to have a different name for each version (with different arities) of the same macros. New rules: - can have multiple definitions of the same macro with different arities - cannot overload macro with the same arity - the overloading of predefined macros (?MODULE, ?LINE, ...) is forbidden - the directive '-undef' removes all definitions of a macro
2010-02-01epp: fix bug in the function scan_undefChristopher Faulet
The dict St#epp.uses that helps to find circular macros was not correctly updated.
2010-01-30Merge branch 'ta/ensure_dir_eexist' into ccase/r13b04_devErlang/OTP
* ta/ensure_dir_eexist: filelib_SUITE: strenghten tests of filelib:ensure_dir/1 Don't return a false {error,eexist} in filelib:ensure_dir/1 OTP-8389 Because of a race condition, using filelib:ensure_dir/1 from multiple processes to create the same path or parts of the same directory structure, filelib:ensure_dir/1 could return a meaningless {error,eexist}. That race condition has been eliminated, and {error,eexist} will now be returned only if there exists a regular file, device file, or some other non-directory file with the same name. (Thanks to Tuncer Ayaz.)
2010-01-27Merge branch 'rb/stdlib_re_unicode_fixes' into ccase/r13b04_devErlang/OTP
* rb/stdlib_re_unicode_fixes: Fix lost unicode option in re:compile() Refactor out repeated block in re module Fix re:replace/4 to handle unicode charlist Replacement argument Fix re:replace/4 to handle unicode charlist RE argument Fix re:replace/4 to handle binary unicode output when nothing replaced OTP-8394 A number of bugs concerning re and unicode are corrected: - re:compile no longer loses unicode option, which also fixes bug in re:split. - re:replace now handles unicode charlist replacement argument - re:replace now handles unicode RE charlist argument correctly - re:replace now handles binary unicode output correctly when nothing is replaced. Most code, testcases and error isolation done by Rory Byrne.
2010-01-27Fix lost unicode option in re:compile()Patrik Nyblom
Noticed-by: Rory Byrne
2010-01-27Refactor out repeated block in re moduleRory Byrne
2010-01-27Fix re:replace/4 to handle unicode charlist Replacement argumentRory Byrne
A bug in re:replace/4 causes a badarg exception to be thrown when the Replacement argument is a charlist containing non-ascii codepoints. The problem is that the code incorrectly assumes that the Replacement text is iodata() and calls iolist_to_binary/1 on it. This patch fixes it to obey the 'unicode' option and handle charlist() Replacement arguments correctly.
2010-01-27Fix re:replace/4 to handle binary unicode output when nothing replacedRory Byrne
A bug with re:replace/4 causes an exception when: (a) it's given a unicode charlist as input; (b) it's set to {return,binary}; and (c) it finds nothing to replace. The problem is: when re:replace/4 does not find anything to replace in its Subject input, it calls iolist_to_binary on this data. This fails if the original input is a charlist with non-ascii codepoints.
2010-01-27OTP-8387 Explicit top directories in archive files are now optional.Håkan Mattsson
For example, if an archive (app-vsn.ez) just contains an app-vsn/ebin/mod.beam file, the file info for the app-vsn and app-vsn/ebin directories are faked using the file info from the archive file as origin. The virtual direcories can also be listed. For short, the top directories are virtual if they does not exist.
2010-01-20Merge branch 'uw/shell-tab-completion' into ccase/r13b04_devErlang/OTP
* uw/shell-tab-completion: Shell tab completion now works for quoted module and function names OTP-8383 Shell tab completion now works for quoted module and function names. (Thanks to Ulf Wiger.)
2010-01-18Don't return a false {error,eexist} in filelib:ensure_dir/1Tuncer Ayaz
This is about the non-atomicity of filelib:ensure_dir/1. When using filelib:ensure_dir/1 from multiple processes to create the same path or parts of the same directory structure (which happens with rebar's worker processes) it happens quite a lot that between a file:read_file_info/1 and file:make_dir/1 one of the other procs has already created the directory we want to create. mkdir(1) says one of the following for -p depending on which Unix like system you're on: "no error if existing" "no error will be reported if a directory given as an operand already exists" I've seen more than one Erlang project where the return value of ensure_dir/1 is ignored completely. To eliminate the race condition, call file:make_dir/1 without first testing whether the directory exists. If it succeeds everything is fine. Otherwise, if the error code is {error,eexists}, check whether the directory exists. If it does, everything is fine; if not, return {error,eexist} (which indicates that there exists a regular file with the same name, or (more unlikely) that another process removed the directory after the call to file:make_dir/1). Signed-off-by: Tuncer Ayaz <[email protected]>
2010-01-13Merge branch 'bg/otp_build-improvements' into ccase/r13b04_devErlang/OTP
* bg/otp_build-improvements: Fix spelling, remove obsolete command Support updating preloaded files in a git repository Support updating the primary bootstrap in a git repository Determine which VCS is being used stdlib makefile: Add explicit rule OTP-8369: bg/otp_build-improvements
2010-01-12stdlib makefile: Add explicit ruleBjörn Gustavsson
When building a primary bootstrap in a git repository, the file bootstrap/lib/stdlib/egen/erl_parse.erl would not get updated. With clearmake, this file is updated. Adding an explicit rule for the file make it it work with GNU Make. While at it, remove an out-commented rule.
2010-01-07Shell tab completion now works for quoted module and function namesUlf Wiger
While quoted atoms in module and function names are not common, they are allowed, and sometimes quite useful. In OTP, they are commonplace in ORBER, and can also be found in XMERL. Tab completion needs to recognize quoted atoms and act accordingly. This patch includes changes in edlin:over_word/1. It should be noted that these changes also affect the 'kill word', 'forward word' and 'backward word' commands in the line editor. The author thinks that the changes are for the better. There are also minor changes in edlin_expand.erl - mainly in regard to the conversion between atoms and strings. Another change is that the list of matches is now sorted, partly to simplify testing, but also because it seems sensible to present the matches that way. A test suite, edlin_expand_SUITE, has been added to the stdlib test suites. (amended 2009-12-18 to actually include the modified files too and again to rename the capitalized test modules for portability.)
2009-12-15Deprecate concat_binary/1Björn Gustavsson
2009-12-14Merge branch 'as/c_nc-fix' into ccase/r13b04_devErlang/OTP
* as/c_nc-fix: c_SUITE: Use new style guard tests Fix c:nc to use outdir or cwd to find compiled object file OTP-8337 c:nc/{1,2} used to assume that the beam file was created in the same directory as the source code and failed to load the code if it was not. Corrected to look for the beam file in the current directory or in the directory specified by the {outdir,Dir} option. (Thanks to Alex Suraci.)
2009-12-14Fix c:nc to use outdir or cwd to find compiled object fileAlex Suraci
Before this patch, c:nc would naively assume the object file was created in the same location as the .erl file. This is often false, for example when an outdir is specified (often the case in make:all([netload])) or calling with c:nc("foo/bar") (because compile:file places bar.beam in the cwd, not foo/). [ Squashed in minor style changes. /bg ]
2009-12-04Merge branch 'sv/sys_get_status' into ccase/r13b04_devErlang/OTP
* sv/sys_get_status: Teach sys:get_status/1,2 to call Mod:format_status/2 gen_fsm: Fix format_status/2 to handle Pids OTP-8324 The ability for the gen_server and gen_fsm callback modules to format their own state for display under the sys:get_status/1,2 calls has been restored and documented. (Thanks to Steve Vinoski.)
2009-12-01Teach sys:get_status/1,2 to call Mod:format_status/2Steve Vinoski
Restore the ability for gen_server and gen_fsm callback modules to format their own state for display under the sys:get_status/1,2 calls. This ability is extremely useful for new behavior modules based on gen_server or gen_fsm, so that they can display their status in a more meaningful way than just dumping the state record. It is also generally useful for applications wanting to display their gen_server or gen_fsm callback module state in something other than the default manner. Also document the previously undocumented the gen_server:format_status/2 and gen_fsm:format_status/2 optional callback functions that, if exported by the callback module, are invoked when sys:get_status/1,2 are called. Add unit tests to ensure that format_status/2 functions exported from a gen_fsm callback module and a gen_server callback module are called when sys:get_status/1,2 are called.
2009-11-29gen_fsm: Fix format_status/2 to handle PidsSteve Vinoski
gen_fsm:format_status/2 currently crashes if Name in the process state is a Pid. Handle Name in the same way as in gen_server:format_status/2 to eliminate the crash.
2009-11-26Added more tests for array:reset/2.Dan Gudmundsson
Code coverage was bad for my new optimizations.
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP