aboutsummaryrefslogtreecommitdiffstats
path: root/lib/kernel/src
AgeCommit message (Collapse)Author
2011-11-29Implement file:sendfileTuncer Ayaz
Allow Erlang code to use sendfile() where available by wrapping it as file:sendfile/4 and file:sendfile/2. sendfile(2) - Linux man page: "sendfile() copies data between one file descriptor and another. Because this copying is done within the kernel, sendfile() is more efficient than the combination of read(2) and write(2), which would require transferring data to and from user space."
2011-11-23Avoid slow code loading of BEAM code in a hipe-enabled emulatorBjörn Gustavsson
On my Linux computer, building the entire Erlang/OTP system with hipe disabled took about 8 minutes. With hipe enabled, but without any native code, the build took about 23 minutes, i.e. more than 3 times slower. (The computer has 4 cores, and I used 'make -j6'.) On my eight-core Mac (running 'make -j10') there was only a slight slowdown when hipe was enabled. The culprit is hipe_unified_loader:post_beam_load/1, which will be called every time a module is loaded (even if the module contains no native code). If post_beam_load/1 is called in a hipe-enabled emulator, it will block multi-scheduling, even if no work needs to be done. Apparently the cost for blocking multi-scheduling can vary greatly, depending on the operating system and system load. As a quick and conservative fix, don't call post_beam_load/1 unless some native code has been previously loaded.
2011-11-18Merge branch 'siri/sasl/upgrade-erts/OTP-9438'Siri Hansen
* siri/sasl/upgrade-erts/OTP-9438: Fix bug in erts upgrade on windows Add release vsn info to erts_vsn_changed warning Check for sasl application in systools:make_script and make_relup Add syntax check of relup to check_install_release and install_release Add documentation for upgrade from pre R15 to post R15 sasl Handle upgrade from pre R15 to post R15 sasl Step version of sasl to 2.2 for R15 Document upgrade instructions restart_new_emulator and restart_emulator Wait for two restarts in upgrade_restart test Add restart_new_emulator instruction to kernel, stdlib and sasl appups Distinguish restart_new_emulator from restart_emulator in upgrade instructions Upgrade erts: merge sys.config for tmp release instead of using old Allow regexp for version in .appup Restart emulator before running upgrade script when erts is upgraded Conflicts: lib/sasl/src/release_handler.erl lib/sasl/test/release_handler_SUITE.erl
2011-11-17Add restart_new_emulator instruction to kernel, stdlib and sasl appupsSiri Hansen
The appup files for kernel, stdlib and sasl did not contain any UpFromVsn and DownToVsn. This means that it was not possible to create a relup file with systool:make_relup if any of these applications had changed. This commit adds entries in the appup files for a maximum of two major releases back - all with only one upgrade instruction: restart_new_emulator. The point is to allow relups to be generated, but ensure that no soft upgrade is done for these three applications - i.e. they will always cause a restart of the emulator prior to all other upgrade instructions from other applications. Test cases (appup_test) are added to kernel_SUITE, stdlib_SUITE and sasl_SUITE. These all check that expected versions are matched in the appups, and illegal versions (older than two major releases, or in any other way illegal) do not match. The test is written in a general way where it is assumed that the version of these applications are stepped according the the rule that major releases step the second number, maintenance releases step the third number and patches step the fourth number.
2011-11-17Merge branch 'siri/kernel/application-shutdown-timeout/OTP-9540'Siri Hansen
* siri/kernel/application-shutdown-timeout/OTP-9540: Add documentation and test for kernel env var shutdown_timeout Add env var shutdown_timeout to kernel to avoid deadlock on node shutdown
2011-11-17kernel: Bugfix - SCTP connect with sndrcvinfo in assoc_change eventRaimo Niskanen
On some platforms (FreeBSD) the #sctp_assoc_change{state=comm_up} event arriving during gen_sctp:connect/4,5 contains ancillary data #sctp_sndrcvinfo{}. That was not expected by the code.
2011-11-17erts,kernel: Implement gen_sctp:peeloff/2Raimo Niskanen
2011-11-17erts,kernel: Add type stream sockets to SCTPRaimo Niskanen
2011-11-16erts,kernel: Rename operations common to TCP and SCTPRaimo Niskanen
2011-11-15Add env var shutdown_timeout to kernel to avoid deadlock on node shutdownSiri Hansen
When a node is shutting down, application_controller will do exit(Pid,shutdown) on all application masters, and wait for {'EXIT',Pid,_}. If, for some reason, the application master does not terminate then application_controller will hang forever waiting for this 'EXIT' message. To overcome this problem, a configurable timer is added to kernel - the enviroment variable 'shutdown_timeout'. If this variable is set to a positive integer T, application_controller will do exit(Pid,kill) after T milli seconds if no 'EXIT' message is received.
2011-11-14Remove the undocumented function global:safe_whereis_name/1Hans Bolinder
2011-11-14Remove all use of global:safe_whereis_name/1Hans Bolinder
Calls to global:whereis_name/1 have been substituted for calls to global:safe_whereis_name/1 since the latter is not safe at all. The reason for not doing this earlier is that setting a global lock masked out a bug concerning the restart of supervised children. The bug has now been fixed by a modification of global:whereis_name/1. (Thanks to Ulf Wiger for code contribution.)
2011-11-01Merge branch 'rc/remote-shell-completion'Henrik Nord
OTP-9673
2011-10-10Merge branch 'hb/kernel/fix_disk_log/OTP-9508'Hans Bolinder
* hb/kernel/fix_disk_log/OTP-9508: Fix two minor disk_log bugs
2011-10-07Add callback specs into 'application' module in kernelStavros Aronis
2011-09-29Merge branch 'dev' into majorBjörn-Egil Dahlberg
* dev: Update copyright years
2011-09-29Update copyright yearsBjörn-Egil Dahlberg
2011-09-20Merge branch 'dev' into majorHenrik Nord
Conflicts: erts/aclocal.m4 erts/include/internal/ethread_header_config.h.in
2011-09-15Fix misspelling of successfulTuncer Ayaz
2011-09-13Merge branch 'pan/move-dist-headers/OTP-9510' into majorIngela Anderton Andin
* pan/move-dist-headers/OTP-9510: Update bootstrap (manually) Move distribution headers from kernel/src to kernel/include
2011-09-02Merge branch 'dev' into majorHans Bolinder
* dev: Fix a couple of minor bugs with hook priority Update to reflect addition of CTH priority addition Update CTH priority default to be 0 Update to reflect new cth callback api Update the return from init/2 to be {ok, NewState} or {ok,NewState,Priority} instead of NewState. Add priority functionality and tests for ct hooks Update internal hooks state to use a record instead of tuples Improve and correct types and specifications in Kernel and STDLIB
2011-09-02Merge branch 'hb/spec_improvements/OTP-9485' into devHans Bolinder
* hb/spec_improvements/OTP-9485: Improve and correct types and specifications in Kernel and STDLIB
2011-09-01Merge branch 'dev' into majorHenrik Nord
2011-09-01Move distribution headers from kernel/src to kernel/includePatrik Nyblom
2011-09-01Fix two minor disk_log bugsHans Bolinder
disk_log:reopen/2,3 and disk_log:breopen/3 could return the error reason from file:rename/2 rather than the reason {file_error, Filename, Reason}. The message {disk_log, Node, {error, disk_log_stopped}} which according the documentation is sent upon failure to truncate or reopen a disk log was sometimes turned into a reply.
2011-08-31Improve and correct types and specifications in Kernel and STDLIBHans Bolinder
Running Dialyzer on the test suites revealed a few type errors.
2011-08-27Fix type of Packet arg of gen_tcp:send/2 and gen_udp:send/4Filipe David Manana
The type is marked as a binary() or a string() but in practice it can be an iodata(). The test suite was updated to confirm the gen_tcp/2 and gen_udp:send/4 functions accept iodata() (iolists) packets.
2011-08-26Merge branch 'dev' into majorHans Bolinder
* dev: Improve types and specifications of the inet modules
2011-08-26Merge branch 'hb/inet_types_and_specs/OTP-9260' into devHans Bolinder
* hb/inet_types_and_specs/OTP-9260: Improve types and specifications of the inet modules
2011-08-26Merge branch 'dev' into majorBjörn Gustavsson
* dev: code: Optimize purge/1 and soft_purge/1 using check_old_code/1 Add erlang:check_old_code/1 check_process_code/2: Quickly return 'false' if there is no old code
2011-08-26code: Optimize purge/1 and soft_purge/1 using check_old_code/1Björn Gustavsson
While at it, eliminate an unnecessary use of throw/catch in the implementation of soft_purge/1.
2011-08-25Improve types and specifications of the inet modulesHans Bolinder
2011-08-18make tab completion work in remote shellsMats Cronqvist
2011-08-16compiler: Don't create filenames starting with "./"Björn Gustavsson
In the location information tables in the run-time system, source filenames that are the same as the module name plus ".erl" extension are not stored explicitly, thus saving memory. To take advantage of that optimization, avoid complicating the names of files in the current working directory; specifically, make sure that "./" is not prepended to the name.
2011-08-16emulator: Add a fourth element in exception stacktracesBjörn Gustavsson
This commit is a preparation for introducing location information (filename/line number) in stacktraces in exceptions. Currently a stack trace looks like: [{Mod1,Function1,Arity1}, . . . {ModN,FunctionN,ArityN}] Add a forth element to each tuple that can be used indication the filename and line number of the source file: [{Mod1,Function1,Arity1,Location1}, . . . {ModN,FunctionN,ArityN,LocationN}] In this commit, the fourth element will just be an empty list, and we will change all code that look at or manipulate stacktraces.
2011-06-20Add more specs and typesHans Bolinder
An incorrect spec, rpc:yield/1, has been fixed.
2011-05-31Stop generating some unused clauses for make_dns_rr_opt/1 local to inet_dnsRaimo Niskanen
2011-05-24Modify two opaque typesHans Bolinder
Two opaque types that could cause warnings when running Dialyzer have been modified.
2011-05-17Remove unused variable warning in inet_resBjörn-Egil Dahlberg
2011-05-09Types and specifications have been modified and addedHans Bolinder
2011-04-21Do not UDP send when there is 0 ms left to wait for replyRaimo Niskanen
2011-04-21Check return values from UDP send functionsRaimo Niskanen
2011-04-21Cleanup timeout handling, fix bug for remaining time =:= 0Raimo Niskanen
2011-04-08Merge branch 'mk/net-kernel-epmd-return-list' into devHenrik Nord
* mk/net-kernel-epmd-return-list: Fix list returned by net_kernel:epmd_module OTP-9215
2011-04-05Merge branch 'ks/hipe-ppc64' into devHenrik Nord
* ks/hipe-ppc64: Enable HiPE by default when compiling for PPC64 Translate RTL to PPC code on PPC64 too Changes in ppc files for PPC64 Additions for the PPC64 backend Changes for the PPC64 backend Added loader for ppc64 New files for the 64-bit backends Cleanup tags OTP-9198
2011-03-11Update copyright yearsBjörn-Egil Dahlberg
2011-03-11Add spec for function that does not returnKostis Sagonas
2011-03-11Strenghen specKostis Sagonas
2011-03-11Introduce types to avoid duplication in specsKostis Sagonas
2011-03-11Add specs for functions that do not returnKostis Sagonas