aboutsummaryrefslogtreecommitdiffstats
path: root/lib/kernel
AgeCommit message (Collapse)Author
2013-02-06Merge branch 'mh/duplicate_name_error_message/OTP-10797'Fredrik Gustafsson
* mh/duplicate_name_error_message/OTP-10797: Slightly nicer error message when node start fails due to duplicate name
2013-02-04Merge branch 'bjorn/remove-packages/OTP-10348'Björn Gustavsson
* bjorn/remove-packages/OTP-10348: kernel docs: Remove references to specs_packages.xml
2013-02-04Update version numbersBjörn-Egil Dahlberg
2013-01-31kernel docs: Remove references to specs_packages.xmlBjörn Gustavsson
2013-01-29Prepare releaseOTP_R16A_RELEASE_CANDIDATEErlang/OTP
2013-01-25Update copyright yearsBjörn-Egil Dahlberg
2013-01-25Slightly nicer error message when node start fails due to duplicate nameMagnus Henoch
When starting up an Erlang node using a node name that is already in use, the new node used to crash with output starting with this message: {error_logger,{{2013,1,25},{16,0,42}},"Protocol: ~p: register error: ~p~n",["inet_tcp",{{badmatch,{error,duplicate_name}},[{inet_tcp_dist,listen,1,[..... With this change, the first line in the output changes to: {error_logger,{{2013,1,25},{16,40,41}},"Protocol: ~tp: the name foo@localhost seems to be in use by another Erlang node",["inet_tcp"]}
2013-01-25Make adjustments for UnicodeHans Bolinder
2013-01-25[kernel] Correct bugs in the old shell (user.erl)Hans Bolinder
The inline attribute has been simplified due to problems with compiling to native code. The exact cause it beyond the scope of this commit.
2013-01-25[stdlib] Remove documentation of Unicode functions in io_libHans Bolinder
The documentation of some Unicode functions in io_lib was committed by mistake.
2013-01-24Merge branch 'bjorn/kernel/undefined-function-handler/OTP-10617'Björn Gustavsson
* bjorn/kernel/undefined-function-handler/OTP-10617: Add a warning to discourage abuse of $handle_undefined_function/2
2013-01-24Merge branch 'bjorn/warnings-zero-tolerance'Björn Gustavsson
* bjorn/warnings-zero-tolerance: Turn warnings to errors on selected applications runtime_tools_sup: Eliminate warning inet_parse: Eliminate a compiler warning
2013-01-23Merge branch 'sverk/r16/utf8-atoms'Sverker Eriksson
* sverk/r16/utf8-atoms: erl_interface: Fix bug when transcoding atoms from and to UTF8 erl_interface: Changed erlang_char_encoding interface erts: Testcase doing unicode atom printout with ~w erl_interface: even more utf8 atom stuff erts: Fix bug in analyze_utf8 causing faulty latin1 detection Add UTF-8 node name support for epmd workaround... Fix merge conflict with hasse UTF-8 atom documentation test case erl_interface: utf8 atoms continued Add utf8 atom distribution test cases atom fixes for NIFs and atom_to_binary UTF-8 support for distribution Implement UTF-8 atom support for jinterface erl_interface: Enable decode of unicode atoms stdlib: Fix printing of unicode atoms erts: Change internal representation of atoms to utf8 erts: Refactor rename DFLAG(S)_INTERNAL_TAGS for conformity Conflicts: erts/emulator/beam/io.c OTP-10753
2013-01-23Add testcase for oct countersPatrik Nyblom
2013-01-23Fix efile_drv crash when using async thread poolFilipe David Borba Manana
When using the async thread pool and compressed files, when an efile driver port instance is shutdown, the efile_drv stop callback closes the file descriptor (a gzFile instance actually) - this is dangerous if at the same time there's an async thread performing an operation against the file, for example calling invoke_read(), which can result in a segmentation fault, or calling invoke_close() which double closes the gzFile and this in turn causes 2 consecutive calls to driver_free() against same gzFile instance (resulting in later unexpected crashes in erl_bestfit_alloc.c for example). The following test program makes the emulator crash when using the async thread pool: -module(t2). -export([t/1]). t(N) -> file:delete("foo.bar"), % Use of 'compressed' option, for creating/writing the file, % is irrelevant. It only matters when opening it later for % reads - a non-compressed file open with the 'compressed' % option goes through an internal gzFile handle (instead of % a plain integer fd), just like a compressed file. %{ok, Fd} = file:open("foo.bar", [raw, write, binary]), {ok, Fd} = file:open("foo.bar", [raw, write, binary, compressed]), ok = file:write(Fd, <<"qwerty">>), ok = file:close(Fd), Pid = spawn_link(fun() -> process_flag(trap_exit, true), loop(N) end), Ref = erlang:monitor(process, Pid), receive {'DOWN', Ref, _, _, _} -> ok end. loop(0) -> ok; loop(N) -> Server = self(), Pid = spawn(fun() -> {ok, Fd} = file:open("foo.bar", [read, raw, binary, compressed]), Server ! continue, % Comment the file:read/2 call to make the file:close/1 call much % more likely to crash or end up causing efile_drv to close twice % the fd (gzFile), which will make the emulator crash later in the % best fit allocator (erl_bestfit_alloc.c). _ = file:read(Fd, 5), file:close(Fd) end), receive continue -> ok end, exit(Pid, shutdown), loop(N - 1). Running this test when using the async thread pool: shell> erl +A 4 Erlang R15B03 (erts-5.9.3.1) [source] [64-bit] [smp:4:4] [async-threads:4] [hipe] [kernel-poll:false] Eshell V5.9.3.1 (abort with ^G) 1> c(t2). {ok,t2} 2> t2:t(500000). Segmentation fault (core dumped) When not using the async thread pool, there are no issues: shell> erl Erlang R15B03 (erts-5.9.3.1) [source] [64-bit] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false] Eshell V5.9.3.1 (abort with ^G) 1> c(t2). {ok,t2} 2> t2:t(500000). ok 3> An example stack trace when the crash happens because there's an ongoing read operation is: Thread 1 (Thread 0x7f021cf2c700 (LWP 10687)): #0 updatewindow (strm=0x2691bf8, out=5) at zlib/inflate.c:338 #1 0x00000000005a2ba0 in inflate (strm=0x2691bf8, flush=0) at zlib/inflate.c:1141 #2 0x000000000055c46a in erts_gzread (file=0x2691bf8, buf=0x7f0215b29e80, len=5) at drivers/common/gzio.c:523 #3 0x00000000005849ef in invoke_read (data=0x26b2228) at drivers/common/efile_drv.c:1114 #4 0x000000000050adcb in async_main (arg=0x7f021bf5cf40) at beam/erl_async.c:488 #5 0x00000000005c21a0 in thr_wrapper (vtwd=0x7fff69c6ff10) at pthread/ethread.c:106 #6 0x00007f021c573e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #7 0x00007f021c097cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6 #8 0x0000000000000000 in ?? () And when there's an ongoing close operation when the driver is stopped: Thread 1 (Thread 0x7fe5f5654700 (LWP 747)): #0 0x0000000000459b64 in bf_unlink_free_block (block=0x10b2a70, allctr=<optimized out>, flags=<optimized out>) at beam/erl_bestfit_alloc.c:792 #1 bf_unlink_free_block (flags=0, block=0x10b2a70, allctr=0x873380) at beam/erl_bestfit_alloc.c:822 #2 bf_get_free_block (allctr=0x873380, size=<optimized out>, cand_blk=<optimized out>, cand_size=<optimized out>, flags=0) at beam/erl_bestfit_alloc.c:869 #3 0x000000000044f0dd in mbc_alloc_block (alcu_flgsp=<synthetic pointer>, blk_szp=<synthetic pointer>, size=200, allctr=0x873380) at beam/erl_alloc_util.c:1198 #4 mbc_alloc (allctr=0x873380, size=200) at beam/erl_alloc_util.c:1345 #5 0x000000000045449b in do_erts_alcu_alloc (size=200, extra=0x873380, type=165) at beam/erl_alloc_util.c:3442 #6 erts_alcu_alloc_thr_pref (type=165, extra=<optimized out>, size=192) at beam/erl_alloc_util.c:3520 #7 0x000000000055c0bf in gz_open (mode=0x5d98b2 "rb", path=0x1103418 "foo.bar") at drivers/common/gzio.c:164 #8 erts_gzopen (path=0x1103418 "foo.bar", mode=0x5d98b2 "rb") at drivers/common/gzio.c:307 #9 0x0000000000584e47 in invoke_open (data=0x1103330) at drivers/common/efile_drv.c:1857 #10 0x000000000050adcb in async_main (arg=0x7fe5f698af80) at beam/erl_async.c:488
2013-01-23Merge branch 'fh/shell_history_search/OTP-10739'Fredrik Gustafsson
* fh/shell_history_search/OTP-10739: Add search to Erlang shell's history
2013-01-23Turn warnings to errors on selected applicationsBjörn Gustavsson
2013-01-23inet_parse: Eliminate a compiler warningBjörn Gustavsson
The warning was introduced in e367eb44969b00cac910c8eb14e7b3ce3ee0cc91.
2013-01-23Add a warning to discourage abuse of $handle_undefined_function/2Björn Gustavsson
2013-01-21[hipe, kernel, stdlib] Correct a few typesHans Bolinder
The type ascii_string() in the base64 module has been corrected. The type file:file_info() has been cleaned up. The type file:fd() has been made opaque in the documentation. The type nodes() has been removed from erl_bif_types.erl.
2013-01-21Merge branch 'lukas/kernel/iter_max_socks_to_node/OTP-10734'Lukas Larsson
* lukas/kernel/iter_max_socks_to_node/OTP-10734: Isolate iter_max_socks to own node
2013-01-21Isolate iter_max_socks to own nodeLukas Larsson
This prevents this testcase from ruining the entire testrun if it should fail critically.
2013-01-19Add search to Erlang shell's historyFred Hebert
Search mode can be entered by pressing ctrl-r. Enter terms and press ctrl-r again to search backwards, or ctrl-s to then search forward (if you terminal doesn't eat up that one). Press enter to execute the line, or use tab, arrow keys, or other control sequences (^D, ^K, etc.) to exit search mode while remaining on the last found line. Exiting is also possible by pressing the escape key twice. The search mode is a simpler version of the one available in bash or zsh shells. This adds a few modes to the shell (search, on top of none and meta) in group.erl for history search, and a few more in edlin.erl to change the meaning of control sequences while searching.
2013-01-19UTF-8 atom documentationRickard Green
2013-01-18Merge branch 'nox/enable-silent-rules/OTP-10726'Björn-Egil Dahlberg
* nox/enable-silent-rules/OTP-10726: Implement ./otp_build configure --enable-silent-rules
2013-01-18Merge branch 'bjorn/kernel/undefined-function-handler/OTP-10617'Björn Gustavsson
* bjorn/kernel/undefined-function-handler/OTP-10617: Teach error_handler to call '$handle_undefined_function'
2013-01-17global_SUITE: Eliminate redundant registration of 'test_server' processBjörn Gustavsson
global_SUITE registers the name 'test_server' in the global registry for what seems to be only historical reasons. Exactly how it happened is lost in the mists of time, but I think the following is a reasonable reconstruction: * At one point in time, the test_server application started to do a global registration of a 'test_server' process to support embedded systems when the test_server application was run on both a host and a target system. * global_SUITE had to be modified to take the pre-existing 'test_server' registration into account. * When Erlang/OTP switched to using common_test, global_SUITE was modified to register the 'test_server' name itself in commit 8bd07f450816eaaae52d28740d89ead1f930cd02 (since the test_server application does not register the 'test_server' name when run under control of common_test). To slightly reduce the size of global_SUITE, remove the redundant registration and stop expecting 'test_server' to be registered.
2013-01-17Merge branch 'bjorn/remove-packages/OTP-10348'Björn Gustavsson
* bjorn/remove-packages/OTP-10348: compile: Remove vestiges of package support Remove documentation about packages
2013-01-17Merge branch 'sal/get_env/OTP-10694'Fredrik Gustafsson
* sal/get_env/OTP-10694: Moved documentation in a separate entry Removed obsolete ?line macro Add application:get_key/3
2013-01-16UTF-8 support for distributionRickard Green
2013-01-16Remove documentation about packagesBjörn Gustavsson
2013-01-15Implement ./otp_build configure --enable-silent-rulesAnthony Ramine
With silent rules, the output of make is less verbose and compilation warnings are easier to spot. Silent rules are disabled by default and can be disabled or enabled at will by make V=0 and make V=1.
2013-01-15Moved documentation in a separate entrySerge Aleynikov
2013-01-14Removed obsolete ?line macroSerge Aleynikov
2013-01-14Add application:get_key/3serge
The new function provides a default value for a configuration parameter.
2013-01-14Teach error_handler to call '$handle_undefined_function'Björn Gustavsson
2013-01-11Merge branch 'fdm/file-allocate/OTP-10680'Björn-Egil Dahlberg
* fdm/file-allocate/OTP-10680: Update preloaded prim_file.beam erts: Fix xcomp configure for fallocate Add file:allocate/3 operation
2013-01-10Merge branch 'bjorn/remove-packages/OTP-10348'Björn Gustavsson
* bjorn/remove-packages/OTP-10348: (22 commits) kernel: Remove the packages module kernel: Eliminate use of packages in code and code_server edoc: Remove support for packages syntax_tools: Remove support for packages reltool: Remove support for packages test_server: Remove support for packages sasl: Remove support for packages debugger: Remove support for packages c: Remove support for packages filename: Remove support for packages erl_pp_SUITE: Remove test of packages shell: Remove support for packages erl_parse: Remove support for packages qlc: Remove support for packages erl_eval: Remove support for packages erl_expand_records: Remove support for packages erl_lint: Remove support for packages compiler: Remove support for packages erts: Remove the packages aliases for BIFs erl_expand_records_SUITE: Eliminate use of packages ...
2013-01-09Merge branch 'egil/ignore-core'Björn-Egil Dahlberg
* egil/ignore-core: test: Ignore cores in debug build for crash dumps
2013-01-09Add file:allocate/3 operationFilipe David Manana
This operation allows pre-allocation of space for files. It succeeds only on systems that support such operation. The POSIX standard defines the optional system call posix_fallocate() to implement this feature. However, some systems implement more specific functions to accomplish the same operation. On Linux, if the more specific function fallocate() is implemented, it is used instead of posix_fallocate(), falling back to posix_fallocate() if the fallocate() call failed (it's only supported for the ext4, ocfs2, xfs and btrfs file systems at the moment). On Mac OS X it uses the specific fcntl() operation F_PREALLOCATE, falling back to posix_fallocate() if it's available (at the moment Mac OS X doesn't provide posix_fallocate()). On any other UNIX system, it uses posix_fallocate() if it's available. Any other system not providing this system call or any function to pre-allocate space for files, this operation always fails with the ENOTSUP POSIX error.
2013-01-09kernel: Remove the packages moduleBjörn Gustavsson
2013-01-09kernel: Eliminate use of packages in code and code_serverBjörn Gustavsson
2013-01-09Prepare OTP files for Unicode as default encodingHans Bolinder
2013-01-09Fix some FOP warningsHans Bolinder
Examples overflowing the width of PDF pages have been fixed. The remaining warnings are due to table cells, and require more work.
2013-01-08test: Ignore cores in debug build for crash dumpsBjörn-Egil Dahlberg
2013-01-03Merge branch 'ks/kernel/dist_util-minor-fix/OTP-10662'Fredrik Gustafsson
* ks/kernel/dist_util-minor-fix/OTP-10662: Do not return wrong terms unnecessarily
2013-01-02Make sure the Erlang shell prompt can handle UnicodeHans Bolinder
2013-01-02Clean up some of the Unicode documentationHans Bolinder
2013-01-02Correct bugs in the old shell (user.erl)Hans Bolinder
2013-01-02[stdlib, kernel] Introduce Unicode support for Erlang source filesHans Bolinder
Expect modifications, additions and corrections. There is a kludge in file_io_server and erl_scan:continuation_location() that's not so pleasing.