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2010-05-19Improve lookup of erl filesHåkan Mattsson
Instead of looking up erl files that almost matched exact match is now required. For example a file named "junk_food.erl" will not longer match "food.erl".
2010-05-17Fix typo in code exampleRaimo Niskanen
Reported by Uwe Dauernheim.
2010-05-17Merge branch 'mp/fix-erts_poll_info_kp-livelock' into devErlang/OTP
* mp/fix-erts_poll_info_kp-livelock: fix livelock in erts_poll_info_kp() OTP-8632 mp/fix-erts_poll_info_kp-livelock When kernel poll has been enabled, a livelock could in rare circumstances occur. Problem reported by Chetan Ahuja, fix by Mikael Pettersson.
2010-05-17Removed/commented out currently dead code.Ingela Anderton Andin
2010-05-15fix livelock in erts_poll_info_kp()Mikael Pettersson
erts_poll_info_kp() [defined in erts/emulator/sys/common/erl_poll.c via some name-mangling trickery] contains a code path that can end up in an infinite loop, causing a livelock. There is a block of code inside #if ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE that is supposed to iterate over a linked list of ErtsPollSetUpdateRequestsBlocks and update two variables based on the sizes of these blocks. The bug is that the loop forgets to advance the list pointer to the next element, so if the loop is entered at all (the initial list pointer is non-NULL), the thread falls into an infinite loop. This patch, against R13B03 but applies fine to today's git, fixes the bug by adding a statement to advance the list pointer in the loop. All other loops over this list appear to be correct. Thanks to Chetan Ahuja for the original report of a livelock problem in erts_poll_info_kp().
2010-05-12timer: Update specs and apply tidier cleanupsKostis Sagonas
2010-05-12Merge branch 'bg/compiler-attributes' into devErlang/OTP
* bg/compiler-attributes: Remove opaque declarations from the attributes
2010-05-12hipe_beam_to_icode: Correct names of new recv_* instructionsKostis Sagonas
The bug was introduced in d60f055697cfe8e7f94be4d291d49bb00a66bc52.
2010-05-12OTP-8629 stdlib: prepare erl_parse.yrl for future extensionHans Bolinder
2010-05-12OTP-8628 stdlib: correction lists(3)Hans Bolinder
The documentation of lists:keysort/2 states that the sort is stable.
2010-05-12Remove opaque declarations from the attributesBjörn Gustavsson
-opaque declarations should not be retained in the attributes (because they will be loaded along with the code and are not useful). While at it, filter away those Dialyzer attributes as early as possible - in v3_kernel.
2010-05-12Merge branch 'bg/opt-receive' into devErlang/OTP
* bg/opt-receive: Test that gen_server:call/2,3 are fast even with a huge message queue erts: Add tests for the receive optimization Update primary bootstrap erts: Implement recv_mark/1 and recv_set/1 for real compiler tests: Cover the error handling code in beam_receive compiler test: Test optimization of receive statements Optimize selective receives in the presence of a large message queue Introduce the new recv_mark/1 and recv_mark/1 instructions Compile tests that communicate with R12 nodes with the r12 option Move p_run/2 to test_lib gen: Inline wait_resp_mon/2 to help the compiler optimize OTP-8623 bg/opt-receive reveive statements that can only read out a newly created reference are now specially optimized so that it will execute in constant time regardless of the number of messages in the receive queue for the process. That optimization will benefit calls to gen_server:call(). (See gen:do_call/4 for an example of a receive statement that will be optimized.)
2010-05-11OTP-8620 Updates of ct_sshPeter Andersson
2010-05-11Updated vsnIngela Anderton Andin
2010-05-11Handling of empty certificate extensions OTP-8626Ingela Anderton Andin
2010-05-11OTP-8561: A minor compiler related performance improvement.Micael Karlberg
OTP-8627: Fix flex lib(s) installation.
2010-05-11hipe_icode: Suppress a dialyzer warningKostis Sagonas
2010-05-11Merge branch 'bg/beam_lib' into devErlang/OTP
* bg/beam_lib: Remove redundant includes Make beam_lib:cmp/2 stricter OTP-8625 bg/beam_lib The beam_lib:cmp/2 function now compares BEAM files in stricter way. The BEAM files will be considered different if there are any changes except in the compilation information ("CInf") chunk. beam_lib:cmp/2 used to ignore differences in the debug information (significant for Dialyzer) and other chunks that did not directly change the run-time behavior.
2010-05-11Merge branch 'dgud/emacs-21-fix' into devErlang/OTP
* dgud/emacs-21-fix: Remove usage of 'font-lock-preprocessor-face' if not available
2010-05-11Merge branch 'pl/fix-shared-lib-install' into devErlang/OTP
* pl/fix-shared-lib-install: Fix shared libraries installation
2010-05-11Added ticketsIngela Anderton Andin
2010-05-11OTP-8568 RFC -5746Ingela Anderton Andin
New ssl now supports secure renegotiation as described by RFC 5746.
2010-05-11Test that gen_server:call/2,3 are fast even with a huge message queueBjörn Gustavsson
2010-05-11erts: Add tests for the receive optimizationBjörn Gustavsson
2010-05-11Update primary bootstrapBjörn Gustavsson
2010-05-11erts: Implement recv_mark/1 and recv_set/1 for realBjörn Gustavsson
The recv_mark/1 instruction will both save the current position in the message queue and a mark (the address of the loop_rec/2 instruction just following the recv_set/1 instruction). The recv_mark/1 instruction will only use the saved position if the mark is correct. The reason for saving and verifying the mark is that the compiler does not need to guarantee that no other receive instruction can be executed in between the recv_mark/1 and recv_set/1 instructions (the mark will be cleared by the remove_message/0 instruction when a message is removed from the message queue). That means that arbitrary function calls in between those instruction can be allowed.
2010-05-11compiler tests: Cover the error handling code in beam_receiveBjörn Gustavsson
2010-05-11compiler test: Test optimization of receive statementsBjörn Gustavsson
We don't attempt to run the generated code, but use beam_disasm and check for the presence or absence (as appropriate) of the recv_mark/1 and recv_set/1 instructions.
2010-05-11Optimize selective receives in the presence of a large message queueBjörn Gustavsson
If a gen_server process has many messages in its message queue and calls another gen_server process, the selective receive in gen_server:call() will have to go through the entire message queue. Have the compiler generate the new mark_recv/1 and mark_recv/1 instructions that can avoid going through the entire message queue.
2010-05-11Introduce the new recv_mark/1 and recv_mark/1 instructionsBjörn Gustavsson
Make the recv_mark/1 and recv_mark/1 instructions known to the compiler and run-time system. For the moment, make the loader ignore any occurrences of those instructions in BEAM files. Also update hipe_beam_to_icode to ignore those instructions.
2010-05-11Compile tests that communicate with R12 nodes with the r12 optionBjörn Gustavsson
R12 nodes cannot load code that use the optimized receive that we are about to implement.
2010-05-10OTP-8563: Decode/Encode of Counter64 errorMicael Karlberg
OTP-8574: Option to allow invalid row OIDs OTP-8594: Make snmp forward compatible with new crypto OTP-8595: snmpc fails to compile BITS with "holes"
2010-05-10Move p_run/2 to test_libBjörn Gustavsson
It can be useful for other test suites.
2010-05-10gen: Inline wait_resp_mon/2 to help the compiler optimizeBjörn Gustavsson
We are about to introduce a new optimization that requires the creation of a monitor and the following receive statement to be in the same function.
2010-05-10Update bootstrap compilerBjörn Gustavsson
2010-05-10Merge branch 'ks/syntax_tools' into devErlang/OTP
* ks/syntax_tools: Fix an erroneous spec
2010-05-10Merge branch 'ms/epmd-error-checking' into devErlang/OTP
* ms/epmd-error-checking: Exit if an error occurs with the listening socket OTP-8618 ms/epmd-error-checking The empd program could loop and consume 100% CPU time if an unexpected error ocurred in listen() or accept(). Now epmd will terminate if a non-recoverable error occurs. (Thanks to Michael Santos.)
2010-05-06Fix an erroneous specKostis Sagonas
While at it, take out redundant code.
2010-05-06Merge branch 'sv/sasl-fix-get_status' into devErlang/OTP
* sv/sasl-fix-get_status: Prepare patch release fix sys:get_status backward compatibility for sasl release_handler_1 OTP-8619 sv/sasl-fix-get_status In R13B04 sys:get_status was modified to invoke format_status/2 in the callback module if the module exports that function. This resulted in a change to the term returned from calling sys:get_status on the supervisor module, since supervisor is a gen_server and gen_server exports format_status. The sasl release_handler_1 module had a dependency on the pre-R13B04 term returned by sys:get_status when invoked on a supervisor, so the R13B04 change broke that dependency. This problem has been fixed by change release_handler_1 to handle both the pre-R13B04 and R13B04 terms that sys:get_status can return from a supervisor.
2010-05-06Merge branch 'bg/file-del_dir' into devErlang/OTP
* bg/file-del_dir: Adjust test of file:del_dir("..") to accept {error,einval}
2010-05-06Remove redundant includesBjörn Gustavsson
2010-05-06Make beam_lib:cmp/2 stricterBjörn Gustavsson
The beam_lib:cmp/2 function only compares the executable parts of the BEAM files, not attributes or abstract code. Since the types and specs (used by Dialyzer) are contained in the abstract code, beam_lib:cmp/2 will return 'ok' if the only difference between two BEAM file are in the types or specs. If an Erlang/OTP system is installed in a revision control system, and beam_lib:cmp/2 is used to avoid committing unchanged but newly compiled BEAM files, BEAM files with no other changes than in types or specs may not get updated, which can problems if Dialyzer or the debugger is run. To avoid that problem, change beam_lib:cmp/2 to compare all chunks *except* for the "CInf" chunk. The "CInf" chunk contains the compilation time, compiler options, and compiler version.
2010-05-06OTP-8563: Decode/Encode of Counter64 errorMicael Karlberg
OTP-8574: Option to allow invalid row OIDs OTP-8594: Make snmp forward compatible with new crypto OTP-8595: snmpc fails to compile BITS with "holes"
2010-05-05Adjust test of file:del_dir("..") to accept {error,einval}Björn Gustavsson
On FreeBSD, file:del_dir("..") will return {error,einval} rather than the expected {error,eexist}, and so will file:del_dir("../.."), and so on. It could be argued that we should change the implementation of file:del_dir/1 to remap the error code (as some other error codes are remapped to reduce the differences between different platforms), but the consistency gained does not seem to be worth the effort. Therefore, until we'll find a real-world use case where it is essential to have consistent error codes for file:del_dir("..") on all platforms, change the test case to accept both errors.
2010-05-05OTP-8581 Revert prototype of driver_asyncPatrik Nyblom
2010-05-05Prepare patch releaseBjörn Gustavsson
2010-05-05fix sys:get_status backward compatibility for sasl release_handler_1Steve Vinoski
In R13B04 sys:get_status was modified to invoke format_status/2 in the callback module if the module exports that function. This resulted in a change to the term returned from calling sys:get_status on the supervisor module, since supervisor is a gen_server and gen_server exports format_status. The sasl release_handler_1 module had a dependency on the pre-R13B04 term returned by sys:get_status when invoked on a supervisor, so the R13B04 change broke that dependency. Change release_handler_1 to handle both the pre-R13B04 and R13B04 terms that sys:get_status can return from a supervisor.
2010-05-04Merge branch 'rd/erlang-eunit' into devErlang/OTP
* rd/erlang-eunit: erlang-eunit.el: Require cl, as it is used
2010-05-04Merge branch 'ms/inet_gethost-safe-debug-output' into devErlang/OTP
* ms/inet_gethost-safe-debug-output: Truncate debug messages OTP-8615 ms/inet_gethost-safe-debug-output
2010-05-04Merge branch 'sv/env-with-equal-sign' into devErlang/OTP
* sv/env-with-equal-sign: allow open_port to set env vars containing a trailing '=' character OTP-8614 sv/env-with-equal-sign The erlang:open_port spawn and spawn_executable directives can include an {env,Env} directive to set up environment variables for the spawned process. A bug prevented applications from using {env,Env} to set an environment variable whose value ended with a '=' (equal sign) character; the trailing equal sign was mistaken as an indication that an environment variable was to be cleared from the environment of the spawned process. (Thanks to Steve Vinoski.)