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2015-04-22supervisor: Correct restart handlingBjörn Gustavsson
fbaa0bec replaced the use of now/0 with erlang:monotonic_time/1 but at the same time introduced a bug in inPeriod/3 so that it would always return 'true' (the subtraction Time - Now would always result in a non-positive number that would always be less than Period). The symptoms of the bug is that when a child has been restarted the maximum number of times allowed, the supervisor will terminate, regardless of how much time that elapses between the restarts. There was no test case that detected this problem. Add the missing test case to ensure that this bug stays killed. Reported-by: Rafał Studnicki
2015-04-20timer: Use monotonic_time/0 in tc/1,2,3Björn Gustavsson
2015-04-20Merge branch 'wmalik/slave-specs'Björn Gustavsson
* wmalik/slave-specs: Remove unused comments Fix Host and Name type in slave.erl
2015-04-20zip: Suppress a dialyzer warning for an unmatched returnBjörn Gustavsson
A warning for an unmatched return was introduced in aaa7c917. The caller of openzip_close/1 ignores the return value, which could be an error tuple. In this situation, handling a fatal error, it is OK to ignore the return value; thus, we only need to make it explicit that we are ignoring the return value.
2015-04-16Merge branch 'bjorn/maps'Björn Gustavsson
* bjorn/maps: Document the new {badmap,Term} and {badkey,Key} exceptions Raise more descriptive error messages for failed map operations erl_term.h: Add is_not_map() macro Tigthen code for the i_get_map_elements/3 instruction Pre-compute hash values for the general get_map_elements instruction Teach the loader to pre-compute the hash value for single-key lookups Optimize use of i_get_map_element/4 beam_emu: Slightly optimize update_map_{assoc,exact} v3_codegen: Don't sort map keys in map creation/update beam_validator: No longer require strict literal term order Sort maps keys in the loader De-optimize the has_map_fields instructions erts/map_SUITE.erl: Add a test case that tests has_map_fields Fully evaluate is_map/1 for literals at load-time map_SUITE: Add tests of is_map/1 with literal maps Run a clone of map_SUITE without optimizations Remove the fail label operand of the new_map instruction Correct transformation of put_map_assoc to new_map Remove support for put_map_exact without a source map
2015-04-15Document the new {badmap,Term} and {badkey,Key} exceptionsBjörn Gustavsson
2015-04-15Raise more descriptive error messages for failed map operationsBjörn Gustavsson
According to EEP-43 for maps, a 'badmap' exception should be generated when an attempt is made to update non-map term such as: <<>>#{a=>42} That was not implemented in the OTP 17. José Valim suggested that we should take the opportunity to improve the errors coming from map operations: http://erlang.org/pipermail/erlang-questions/2015-February/083588.html This commit implement better errors from map operations similar to his suggestion. When a map update operation (Map#{...}) or a BIF that expects a map is given a non-map term, the exception will be: {badmap,Term} This kind of exception is similar to the {badfun,Term} exception from operations that expect a fun. When a map operation requires a key that is not present in a map, the following exception will be raised: {badkey,Key} José Valim suggested that the exception should be {badkey,Key,Map}. We decided not to do that because the map could potentially be huge and cause problems if the error propagated through links to other processes. For BIFs, it could be argued that the exceptions could be simply 'badmap' and 'badkey', because the bad map and bad key can be found in the argument list for the BIF in the stack backtrace. However, for the map update operation (Map#{...}), the bad map or bad key will not be included in the stack backtrace, so that information must be included in the exception reason itself. For consistency, the BIFs should raise the same exceptions as update operation. If more than one key is missing, it is undefined which of keys that will be reported in the {badkey,Key} exception.
2015-04-14Merge branch 'egil/fix-maps-module-exceptions/OTP-12657'Björn-Egil Dahlberg
* egil/fix-maps-module-exceptions/OTP-12657: stdlib: Correct maps module exceptions upon errors
2015-04-14stdlib: Correct orddict(3)Hans Bolinder
fold() and map() handle elements in a well-defined order. Thanks to Rabbe Fogelholm for pointing out the bug.
2015-04-13stdlib: Correct maps module exceptions upon errorsBjörn-Egil Dahlberg
Bad input to maps module function will now yield exceptions: * {badmap,NotMap} or, * badarg
2015-04-10Merge branch 'bjorn/stdlib/cuddle-with-tests'Björn Gustavsson
* bjorn/stdlib/cuddle-with-tests: Eliminate deprecated now/0 used as timestamp Eliminate use of now/0 for creating a unique filename Eliminate use of deprecated now/0 for measuring time Eliminate use of deprecated now/0 for random number generation Speed up timer_simple_SUITE:timer_perf/1 Speed up timer_SUITE Optimize gen_server_SUITE:hibernate/1 Optimize gen_event_SUITE:hibernate/1 Optimize gen_fsm_SUITE:hibernate/1 Optimize unicode_SUITE:ex_binaries_errors* test cases Optimize unicode_SUITE:binaries_errors/1 binary_module_SUITE: Remove unnecessary calls to the binref module Optimize binary_module:random_ref_comp/1 Optimize io_proto_SUITE:unicode_options_gen/1
2015-04-10Eliminate deprecated now/0 used as timestampBjörn Gustavsson
Rewrite the code to measure and print elapsed time instead of just printing timestamps for the start and stop of each operation.
2015-04-10Eliminate use of now/0 for creating a unique filenameBjörn Gustavsson
Use erlang:unique_integer/1 instead.
2015-04-10Eliminate use of deprecated now/0 for measuring timeBjörn Gustavsson
Use erlang:monotonic_time/1 instead of now/0.
2015-04-10Eliminate use of deprecated now/0 for random number generationBjörn Gustavsson
Use erlang:timestamp/0 instead now/0 when seeding the random number generator.
2015-04-10Speed up timer_simple_SUITE:timer_perf/1Björn Gustavsson
In big_test/1, there is 9 seconds sleep before spawning any timers. Why? Before the sleep nrev processes are started, but they are likely to finish running before the 9 seconds have elapsed. Since I see no reason at all for the sleep, I will remove it.
2015-04-10Speed up timer_SUITEBjörn Gustavsson
The single test case in timer_SUITE is annoyingly slow. On average, its running time is about 4 minutes (estimated by a back-of-the-envelope calculation). Scale down the delay times in the main loop and the length of timers started. The running average time should now be around 80 seconds.
2015-04-10Optimize gen_server_SUITE:hibernate/1Björn Gustavsson
The running time for gen_server_SUITE:hibernate/1 is about 12 seconds because of 1000 ms sleeps in the test case. Introduce a helper function to avoid sleeping more than necessary. While we are it, also remove all ?line macros in the test case.
2015-04-10Optimize gen_event_SUITE:hibernate/1Björn Gustavsson
The running time for gen_event_SUITE:hibernate/1 is about 20 seconds because of 1000 ms sleeps in the test case. Introduce helper functions to avoid sleeping more than necessary. While we are it, also remove all ?line macros in the test case.
2015-04-10Optimize gen_fsm_SUITE:hibernate/1Björn Gustavsson
The running time for gen_fsm_SUITE:hibernate/1 is almost 30 seconds because of 1000 ms sleeps in the test case. Introduce helper functions to avoid sleeping more than necessary. While we are it, also remove all ?line macros in the test case.
2015-04-10Optimize unicode_SUITE:ex_binaries_errors* test casesBjörn Gustavsson
Refactor the code so that the error test cases for utf16 can share the code for big and little endian. Do the same for utf32. The major optimization is the observation that the following code: byte_size(unicode:characters_to_binary(List, unicode, {utf16,big}) can be replaced with: 2*length(List) which is much faster. (That optimization is not safe in general, but for the lists used in the error tests cases, it is.)
2015-04-10Optimize unicode_SUITE:binaries_errors/1Björn Gustavsson
unicode_SUITE:binaries_errors/1 is the slowest test case in unicode_SUITE. Its running time is about 50 seconds on my computer. Break apart unicode_SUITE:binaries_errors/1 into several test cases that can run in parallel.
2015-04-10binary_module_SUITE: Remove unnecessary calls to the binref moduleBjörn Gustavsson
The compile_pattern/1 function in the binref module is a dummy function. Therefore, calling binref:match/2 once with the plain pattern and once with a "pre-compiled" pattern will take twice as long, but will not help us find more errors. I shaved off one fourth of the running time for random_ref_comp/1 by eliminating the unnecessary calls to the binref module.
2015-04-08Merge branch 'sverk/ets-grow-faulty-assert/OTP-12647'Sverker Eriksson
* sverk/ets-grow-faulty-assert/OTP-12647: erts: Fix ets bug in debug VM
2015-04-08erts: Fix ets bug in debug VMSverker Eriksson
Symptom: ASSERT(segtab[seg_ix] == NULL) in alloc_seg() fails. Remedy: Make sure we set segment pointer to NULL in free_seg() even when we switch to smaller segtab.
2015-04-07Fix a qlc testcaseHans Bolinder
2015-04-01Merge tag 'OTP-17.5'Henrik Nord
=== OTP-17.5 === Changed Applications: - asn1-3.0.4 - common_test-1.10 - compiler-5.0.4 - crypto-3.5 - debugger-4.0.3 - dialyzer-2.7.4 - diameter-1.9 - eldap-1.1.1 - erts-6.4 - hipe-3.11.3 - inets-5.10.6 - kernel-3.2 - mnesia-4.12.5 - observer-2.0.4 - os_mon-2.3.1 - public_key-0.23 - runtime_tools-1.8.16 - ssh-3.2 - ssl-6.0 - stdlib-2.4 - syntax_tools-1.6.18 - test_server-3.8 - tools-2.7.2 - wx-1.3.3 Unchanged Applications: - cosEvent-2.1.15 - cosEventDomain-1.1.14 - cosFileTransfer-1.1.16 - cosNotification-1.1.21 - cosProperty-1.1.17 - cosTime-1.1.14 - cosTransactions-1.2.14 - edoc-0.7.16 - erl_docgen-0.3.7 - erl_interface-3.7.20 - et-1.5 - eunit-2.2.9 - gs-1.5.16 - ic-4.3.6 - jinterface-1.5.12 - megaco-3.17.3 - odbc-2.10.22 - orber-3.7.1 - ose-1.0.2 - otp_mibs-1.0.10 - parsetools-2.0.12 - percept-0.8.10 - reltool-0.6.6 - sasl-2.4.1 - snmp-5.1.1 - typer-0.9.8 - webtool-0.8.10 - xmerl-1.3.7 Conflicts: OTP_VERSION erts/vsn.mk lib/ssl/vsn.mk
2015-03-31Remove unused commentsWasif Malik
2015-03-31Fix Host and Name type in slave.erlWasif Malik
In the start/1,2,3 and start_link/1,2,3 functions, the Host and Name arguments can be either string() or atom() but the specs only mentioned atom().
2015-03-31Prepare releaseErlang/OTP
2015-03-27Merge branch 'maint'Sverker Eriksson
Conflicts: lib/stdlib/src/stdlib.appup.src
2015-03-26Optimize binary_module:random_ref_comp/1Björn Gustavsson
The most expensive part of random_ref_comp/1 is do_matches_loop_comp/4. The running time was reduced from roughly 80 seconds to roughly 40 seconds on my computer when I modified the caller to pre-compile the pattern.
2015-03-26Optimize io_proto_SUITE:unicode_options_gen/1Björn Gustavsson
The time to run io_proto_SUITE:unicode_options_gen/1 on my computer was about 110 seconds. After modifying the test case so that it does several file operations in parallel the time was reduced to about 60 seconds.
2015-03-26stdlib: Support upgrading from and to stdlib-2.3Björn Gustavsson
2015-03-20Merge branch 'rickard/time_api/OTP-11997'Rickard Green
* rickard/time_api/OTP-11997: (22 commits) Update primary bootstrap inets: Suppress deprecated warning on erlang:now/0 inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules inets: Update comments Suppress deprecated warning on erlang:now/0 Use new time API and be back-compatible in inets Remove unused functions and removed redundant test asn1 test SUITE: Eliminate use of now/0 Disable deprecated warning on erlang:now/0 in diameter_lib Use new time API and be back-compatible in ssh Replace all calls to now/0 in CT with new time API functions test_server: Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API Replace usage of erlang:now() with usage of new API otp_SUITE: Warn for calls to erlang:now/0 Replace usage of erlang:now() with usage of new API Multiple timer wheels Erlang based BIF timer implementation for scalability Implement ethread events with timeout ... Conflicts: bootstrap/bin/start.boot bootstrap/bin/start_clean.boot bootstrap/lib/compiler/ebin/beam_asm.beam bootstrap/lib/compiler/ebin/compile.beam bootstrap/lib/kernel/ebin/auth.beam bootstrap/lib/kernel/ebin/dist_util.beam bootstrap/lib/kernel/ebin/global.beam bootstrap/lib/kernel/ebin/hipe_unified_loader.beam bootstrap/lib/kernel/ebin/inet_db.beam bootstrap/lib/kernel/ebin/inet_dns.beam bootstrap/lib/kernel/ebin/inet_res.beam bootstrap/lib/kernel/ebin/os.beam bootstrap/lib/kernel/ebin/pg2.beam bootstrap/lib/stdlib/ebin/dets.beam bootstrap/lib/stdlib/ebin/dets_utils.beam bootstrap/lib/stdlib/ebin/erl_tar.beam bootstrap/lib/stdlib/ebin/escript.beam bootstrap/lib/stdlib/ebin/file_sorter.beam bootstrap/lib/stdlib/ebin/otp_internal.beam bootstrap/lib/stdlib/ebin/qlc.beam bootstrap/lib/stdlib/ebin/random.beam bootstrap/lib/stdlib/ebin/supervisor.beam bootstrap/lib/stdlib/ebin/timer.beam erts/aclocal.m4 erts/emulator/beam/bif.c erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_db_hash.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_process.h erts/emulator/beam/erl_thr_progress.c erts/emulator/beam/utils.c erts/emulator/sys/unix/sys.c erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/erts_internal.beam erts/preloaded/ebin/init.beam erts/preloaded/src/erts_internal.erl lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl lib/diameter/src/base/diameter_lib.erl lib/kernel/src/os.erl lib/ssh/test/ssh_basic_SUITE.erl system/doc/efficiency_guide/advanced.xml
2015-03-20Replace usage of erlang:now() with usage of new APIRickard Green
2015-03-20Introduce a new time APIRickard Green
The old time API is based on erlang:now/0. The major issue with erlang:now/0 is that it was intended to be used for so many unrelated things. This tied these unrelated operations together and unnecessarily caused performance, scalability as well as accuracy, and precision issues for operations that do not need to have such issues. The new API spreads different functionality over multiple functions in order to improve on this. The new API consists of a number of new BIFs: - erlang:convert_time_unit/3 - erlang:monotonic_time/0 - erlang:monotonic_time/1 - erlang:system_time/0 - erlang:system_time/1 - erlang:time_offset/0 - erlang:time_offset/1 - erlang:timestamp/0 - erlang:unique_integer/0 - erlang:unique_integer/1 - os:system_time/0 - os:system_time/1 and a number of extensions of existing BIFs: - erlang:monitor(time_offset, clock_service) - erlang:system_flag(time_offset, finalize) - erlang:system_info(os_monotonic_time_source) - erlang:system_info(time_offset) - erlang:system_info(time_warp_mode) - erlang:system_info(time_correction) - erlang:system_info(start_time) See the "Time and Time Correction in Erlang" chapter of the ERTS User's Guide for more information.
2015-03-19Merge branch 'egil/maps/hamt/OTP-12585'Björn-Egil Dahlberg
* egil/maps/hamt/OTP-12585: (113 commits) erts: Fix bug in ESTACK and WSTACK kernel: Add spec for erts_debug:map_info/1 mnesia: Update mnesia tests to reflect new ETS hash erts: Ensure maps uses _rel functions in halfword erts: Do not treat errors as fatal in erl_printf_term erts: Update preloaded erts_internal.beam erts: Add map decomposition wrappers erts: Ensure halfword has correct temp-heap for maps hipe: Handle separate hashmap tag correctly erts: Fix map bug in dec_term for 32-bit debug VM stdlib: Update qlc tests to reflect new ETS hash stdlib: Remove obsolete hashmap references in io_lib erts: Enhance maps ordering tests hipe: Fix maps sort order testcase erts: Remove unused variable in crashdump creation erts: Fix typo in copy_struct for halfword emulator erts: Restrict GCC intrinsics by compiler version erts: Fix windows bug in hashmap_info erts: Fix typo in make_hash2 for 32-bit arch Fix beam_load assert ... Conflicts: erts/emulator/beam/bif.tab
2015-03-19stdlib: Update qlc tests to reflect new ETS hashBjörn-Egil Dahlberg
2015-03-19stdlib: Remove obsolete hashmap references in io_libBjörn-Egil Dahlberg
2015-03-19Merge branch 'essen/ssl-alpn'Zandra Hird
* essen/ssl-alpn: ssl: Add TLS-ALPN support OTP-12580
2015-03-18Merge branch 'maint'Zandra Hird
2015-03-18Merge branch 'wmalik/minor-fixes' into maintZandra Hird
* wmalik/minor-fixes: Fix proc_lib doc Remove commented out code Fix make_hash description
2015-03-17Merge branch 'zandra/fix-zip-handle-link'Zandra Hird
* zandra/fix-zip-handle-link: add handle data type in zip.xml to fix broken link
2015-03-17Merge branch 'danielwhite/zip-port-leak-fix'Zandra Hird
OTP-12566 * danielwhite/zip-port-leak-fix: Describe zip handles an opaque type Document the termination semantics of a zip handle Prevent zip:zip_open/1,2 from leaking ports
2015-03-17ssl: Add TLS-ALPN supportLoïc Hoguin
This commit adds support for RFC7301, application-layer protocol negotiation. ALPN is the standard based approach to the NPN extension, and is required for HTTP/2. ALPN lives side by side with NPN and provides an equivalent feature but in this case it is the server that decides what protocol to use, not the client. When both ALPN and NPN are sent by a client, and the server is configured with both ALPN and NPN options, ALPN will always take precedence. This behavior can also be found in the OpenSSL implementation of ALPN. ALPN and NPN share the ssl:negotiated_protocol/1 function for retrieving the negotiated protocol. The previously existing function ssl:negotiated_next_protocol/1 still exists, but has been deprecated and removed from the documentation. The tests against OpenSSL require OpenSSL version 1.0.2+.
2015-03-16Merge branch 'nox/ets-update_counter-4'Zandra Hird
* nox/ets-update_counter-4: Create new BIF ets:update_counter/4 Allow 4-ary BIFs OTP-12563
2015-03-13add handle data type in zip.xml to fix broken linkZandra Hird
2015-03-12stdlib: Enable io_lib:format/* for hamt mapsBjörn-Egil Dahlberg
This is a commit to enable printouts of hashmaps during development and will be enhanced once hashmaps are in place.
2015-03-12Merge branch 'nox/maps-match_specs-fixes/OTP-12270'Björn-Egil Dahlberg
* nox/maps-match_specs-fixes/OTP-12270: erts: Strengthen maps match spec compilation tests Properly collect variables in match specs with maps Fix compilation of match specs with maps
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