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2011-12-09Update copyright yearsBjörn-Egil Dahlberg
2011-12-09Merge branch 'raimo/64-bit-driver-api/OTP-9795'Björn Gustavsson
* raimo/64-bit-driver-api/OTP-9795: (22 commits) driver_SUITE.erl: Fix sys info drivers emulator test drivers: Conform to updated driver API runtime_tools's drivers: Conform to updated driver API ws's xwe_driver.c: Conform to updated driver API megaco's flex scanner: Conform to updated driver API seq_trace_SUITE_data/echo_drv.c: Conform to updated driver API erl_interface tests: Conform port_call_drv.c updated driver API erl_drv_thread_SUITE_data/testcase_driver.c: Conform to updated driver API float_SUITE_data/fp_drv.c: Conform to updated driver API port_SUITE_data/*_drv.c: Conform to updated driver API port_bif_SUITE_data/control_drv.c: Conform to updated driver API send_term_SUITE_data/send_term_drv.c: Conform to updated driver API system_profile_SUITE_data/echo_drv.c: Conform to updated driver API trace_port_SUITE_data/echo_drv.c: Conform to updated driver API Remove support for old drivers without ERL_DRV_EXTENDED_MARKER built-in drivers: Add ERL_DRV_EXTENDED_MARKER and version numbers Bump driver version to 2.0 erl_driver.h: Enlarge type on return value from call erl_driver.h: Enlarge types on driver callbacks output, control and call erl_driver.h: Enlarge types in driver output functions ... Conflicts: erts/emulator/test/driver_SUITE_data/monitor_drv.c erts/emulator/test/driver_SUITE_data/timer_drv.c
2011-12-09erl_driver.h: Enlarge types on driver callbacks output, control and callRaimo Niskanen
2011-12-08Merge branch 'egil/file-info-opt-utc/OTP-7687'Björn-Egil Dahlberg
* egil/file-info-opt-utc/OTP-7687: (39 commits) Remove time_t specific test in prim_file_SUITE Update prim_file.beam and prim_zip.beam Add types for posixtime_to_universaltime and the reverse Set BASEYEAR to 1902 Set lower limit of years handled to 1601 Emulate localtime, gmtime and mktime to enable negative time_t Document file:*_file_info/2 Fix compiler warning in unix_efile.c Change name of bif universaltime_to_seconds/1 Change options to prim_file:*_file_info/* Remove dead code Catch errors from prim_file:*_file_info Testcase for utc <-> seconds conversion Fix negative time in seconds_to_universaltime/1 Remove OS taint from datetime conversion Add utc <-> seconds conversions bifs Let prim_file validate ctime in file_info Teach #file_info spec unix epochs for file times Add file_info_opt tests in prim_file_SUITE unix_efile: Zero is a valid number in utime ... Conflicts: erts/emulator/beam/erl_time_sup.c erts/emulator/sys/win32/erl_win_sys.h erts/emulator/sys/win32/sys_time.c
2011-12-08Emulate localtime, gmtime and mktime to enable negative time_tPatrik Nyblom
2011-12-08Teach windows sys_localtime_rBjörn-Egil Dahlberg
2011-12-02Fix time typesRickard Green
2011-12-02Remove ancient WaitForInputIdle workaroundPatrik Nyblom
2011-12-02Iron out bugs in Win64 found in daily buildsPatrik Nyblom
Almost all uses of the 'long' datatype is removed from VM and tests Emulator test now runs w/o drivers crashing Nasty abs bug fixed in VM as well as type errors in allocator debug functions Still one allocator test that fails, domain knowledge is needed to fix that. Fix type inconsistency in beam_load causing crashes
2011-12-02Build Win64 Erlang emulator using MSYSunknown
Still does not run, just compiles.
2011-11-13Use critical sections as mutex implementation on WindowsRickard Green
Windows native critical sections are now used internally in the runtime system as mutex implementation. This since they perform better under extreme contention than our own implementation.
2011-11-13Use generic lock-free queue for async threadsRickard Green
Queues used for communication between async threads and scheduler threads have been replaced with lock-free queues. Drivers using the driver_async functionality are not automatically locked to the system anymore, and can be unloaded as any dynamically linked in driver. Scheduling of ready async jobs is now also interleaved in between other jobs. Previously all ready async jobs was performed at once.
2011-11-13Replace system block with thread progress blockRickard Green
The ERTS internal system block functionality has been replaced by new functionality for blocking the system. The old system block functionality had contention issues and complexity issues. The new functionality piggy-backs on thread progress tracking functionality needed by newly introduced lock-free synchronization in the runtime system. When the functionality for blocking the system isn't used there is more or less no overhead at all. This since the functionality for tracking thread progress is there and needed anyway.
2011-11-13Optimize memory allocationRickard Green
A number of memory allocation optimizations have been implemented. Most optimizations reduce contention caused by synchronization between threads during allocation and deallocation of memory. Most notably: * Synchronization of memory management in scheduler specific allocator instances has been rewritten to use lock-free synchronization. * Synchronization of memory management in scheduler specific pre-allocators has been rewritten to use lock-free synchronization. * The 'mseg_alloc' memory segment allocator now use scheduler specific instances instead of one instance. Apart from reducing contention this also ensures that memory allocators always create memory segments on the local NUMA node on a NUMA system.
2011-10-14Merge branch 'rickard/atomics-api/OTP-9014' and OTP_R14B04Rickard Green
Conflicts: erts/aclocal.m4 erts/emulator/beam/erl_db.c erts/emulator/sys/win32/sys.c erts/include/internal/ethread_header_config.h.in
2011-09-20Merge branch 'ta/docs-fixes' into devHenrik Nord
* ta/docs-fixes: Fix misspelling of intermediate Fix typos in erts/preloaded/src Fix more misspellings of compatibility Fix misspelling of kept Fix misspelling of compatibility in ssl_basic_SUITE Fix misspelling of compatibility Fix misspelling of accommodate Fix misspelling of exceed Fix misspelling of accidentally Fix misspelling of erroneous in xmerl_xsd Fix misspelling of erroneous Fix misspelling of successful Fix typos in instrument(3) Fix typos in dbg(3) dialyzer: fix a small typo in list_to_bitstring test Fix typos in cover.erl Fix typos (variable name) in erl_nif(3) Fix typos in mod_esi(3) Fix trivial typos in erlang(3) OTP-9555
2011-09-15Fix misspelling of successfulTuncer Ayaz
2011-06-15Move erts_sys_env_init() to erts_sys_pre_init()Patrik Nyblom
2011-06-14Use new atomic API in runtime systemRickard Green
All uses of the old deprecated atomic API in the runtime system have been replaced with the use of the new atomic API. In a lot of places this change imply a relaxation of memory barriers used.
2011-05-13Ensure quick breakRickard Green
Make sure that we don't have to wait in poll before break handling is done.
2011-03-21Teach win32/sys.c (fd-driver) not to leak readers causing init:restart to failPatrik Nyblom
2011-03-11Update copyright yearsBjörn-Egil Dahlberg
2011-03-08The emulator could get into a state where it didn't check for I/O.Rickard Green
2011-02-25Simplify erts_poll_wait() wakeup logicRickard Green
2010-12-15Use new atomic types in emulatorRickard Green
2010-11-30Teach spawn_executable about UnicodePatrik Nyblom
Also corrected compressed files on Windows
2010-11-26Merge branch 'sverker/unsafe_CancelIoEx/OTP-8937' into devSverker Eriksson
* sverker/unsafe_CancelIoEx/OTP-8937: Remove use of unreliable CancelIoEx on Windows.
2010-11-24Remove use of unreliable CancelIoEx on Windows.Sverker Eriksson
CancelIoEx has been seen to cause problems with some drivers. Also improve fallback solution to reuse existing handle-closer-threads.
2010-11-18Move cpu topology functionality into erl_cpu_topology.[ch]Rickard Green
2010-08-30Merge branch 'rickard/cpu-info/OTP-8765' into devRickard Green
* rickard/cpu-info/OTP-8765: Initialize environment functionality after thread lib Fix faulty assertions Implement automatic detection of CPU topology on Windows Make it possible to reread and update detected CPU information
2010-08-30Initialize environment functionality after thread libRickard Green
An assertion failed due to the thread library not being initialized when initializing an rwmutex. This was however harmless.
2010-08-17erts: Remove broken elib_mallocBjörn Gustavsson
elib_malloc is an alternate memory allocator that is no longer possible to build.
2010-08-17erts: Remove stray pre-ISO-C compatibility macrosBjörn Gustavsson
A long time ago, the Erlang run-time system could be build with pre-ANSI/ISO-C (K&R) C compilers, but that is no longer possible. Remove the remaining uses of the compatibility macros that made it possible that possible.
2010-08-10Rewrite ethread libraryRickard Green
Large parts of the ethread library have been rewritten. The ethread library is an Erlang runtime system internal, portable thread library used by the runtime system itself. Most notable improvement is a reader optimized rwlock implementation which dramatically improve the performance of read-lock/read-unlock operations on multi processor systems by avoiding ping-ponging of the rwlock cache lines. The reader optimized rwlock implementation is used by miscellaneous rwlocks in the runtime system that are known to be read-locked frequently, and can be enabled on ETS tables by passing the `{read_concurrency, true}' option upon table creation. See the documentation of `ets:new/2' for more information. The ethread library can now also use the libatomic_ops library for atomic memory accesses. This makes it possible for the Erlang runtime system to utilize optimized atomic operations on more platforms than before. Use the `--with-libatomic_ops=PATH' configure command line argument when specifying where the libatomic_ops installation is located. The libatomic_ops library can be downloaded from: http://www.hpl.hp.com/research/linux/atomic_ops/ The changed API of the ethread library has also caused modifications in the Erlang runtime system. Preparations for the to come "delayed deallocation" feature has also been done since it depends on the ethread library. Note: When building for x86, the ethread library will now use instructions that first appeared on the pentium 4 processor. If you want the runtime system to be compatible with older processors (back to 486) you need to pass the `--enable-ethread-pre-pentium4-compatibility' configure command line argument when configuring the system.
2010-06-11Merge branch 'se/port_SUITE_env' into devErlang/OTP
* se/port_SUITE_env: fix open_port with many unset env vars allow open_port with env vars with trailing '=' on Windows OTP-8701 se/port_SUITE_env open_port/2 with the spawn and spawn_executable options can include an {env,Env} option. In some cases unsetting variables would not work on Unix (typically if more variables were unset than were actually present in the environment).
2010-06-10allow open_port with env vars with trailing '=' on WindowsSverker Eriksson
Same problem that Steve Vinoski fixed for Unix. Similar fix done in erts/emulator/sys/win32/sys_env.c for Windows. Copy-paste from his commit-message: 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 in ert/emulator/sys/unix/sys.c prevented applications from using {env, Env} to set an environment variable whose value ended with a '=' (equal sign) character; the code mistook the trailing equal sign as an indication that an environment variable was to be cleared from the environment of the spawned process. For example, passing an {env, Env} of {env, [{"foo", "bar="}]} would result in the code in sys.c seeing a string of the form "foo=bar=" The code would see the final '=' character and assume the directive wanted to clear a variable named "foo=bar" from the environment of the spawned process, rather than seeing it as a directive to set the environment variable "foo" to the value "bar=".
2010-06-07Merge OTP-8681Björn-Egil Dahlberg
2010-06-01OTP-8658 Add missing memory barriers in erts_poll()Rickard Green
Missing memory barriers in erts_poll() could cause the runtime system to hang indefinitely.
2010-06-01Remove stray SAE supportBjörn Gustavsson
The experimental Standalone Erlang (SAE) support based on Joe Armstrong's work has long been broken. Remove the remaining code and Makefile rules.
2010-05-24Fix deadlock in spawn driver on windowsSverker Eriksson
A misbehaving port program that does not read all data written to the port may deadlock the scheduler thread when it calls port_close. The chosen solution was to use the new function CancelIoEx if it exist (Vista) otherwise let the spawn driver wait for a short while (10ms) and then to spawn a thread that will wait for the port program to exit.
2010-05-02Merge branch 'bg/remove-stray-ose-support' into devErlang/OTP
* bg/remove-stray-ose-support: configure: Remove stray OSE/Delta support Makefiles: Remove stray OSE/Delta support kernel tests: Remove stray OSE/Delta support system tests: Remove stray OSE/Delta support erl_interface tests: Remove stray OSE/Delta support epmd: Remove stray OSE/Delta support epmd: #ifdef out start_epmd() for other platforms than VxWorks emulator tests: Remove stray OSE/Delta support emulator: Remove stray OSE/Delta support emulator: Eliminate #ifdef for sys_tty_reset() test_server: Remove stray support for OSE/Delta OTP-8585 bg/remove-stray-ose-support
2010-04-30emulator: Eliminate #ifdef for sys_tty_reset()Björn Gustavsson
In the erts/emulator/beam sources #ifdef SOME_OPERATING_SYSTEM should be avoided. Instead, call a function implemented in sys/OPERATING_SYSTEM/sys.c.
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP