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2015-12-15erts: It is not possible to exit the forker driverLukas Larsson
2015-12-15erts: Add forker StartAck for port start flowcontrolLukas Larsson
An acknowledgement of the Start command has to be managed as we have to make sure that packages are not dropped and also that the close calls do not happen too early.
2015-12-15erts: Fix large open_port arg segfault for win32Lukas Larsson
os_SUITE:large_output_command send a 10k large argument to open_port({spawn,""}) which was too small for the 2K buffer allocated for win32. The buffer is now dynamic and any size can be used.
2015-12-15erts: Fix memory leak at async open portLukas Larsson
When an async open port fails early, it would sometimes leak memory.
2015-12-15erts: Add testcase for huge port environmentLukas Larsson
2015-12-15erts: Move os_pid to port hash to child setupLukas Larsson
Had to move the hashing because of a race that can otherwise happen where a new os_pid value was inserted into the hash before the previous value had been removed. Also replaced the protocol inbetween erts and child setup to be a binary protocol. This was done in order to deal with the varying size of Eterm.
2015-12-15erts: Handle all EINTR and EAGAIN cases in child setupLukas Larsson
2015-12-15erts: Make child_setup work with large environmentsLukas Larsson
2015-12-15erts: Fix forker driver ifdefs for win32Lukas Larsson
2015-12-15erts: Fix uds socket handling for os xLukas Larsson
OS X is very strict in what it requires of you and also gives strange error codes for some errors. In this commit we remap EMSGSIZE to EMFILE and also precisely tune the amount of data we send on the socket so that we can recv only that data. If we try to recv more, recvmsg fails with EPIPE if the remote end has been closed.
2015-12-15erts: Fix dereferencing of unaligned integer for sparcLukas Larsson
2015-12-15erts: Flatten too long io vectors in uds writeLukas Larsson
2015-12-15erts: Add fd count test for spawn_driverLukas Larsson
2015-12-15erts: Create forker process for spawn driverLukas Larsson
Instead of forking from the beam process, we create a separate process in which all forks are done. This has several advantages: 1) performance: * don't have to close all fd's in the world * fork only has to copy stuff from a small process * work is done in a completely seperate process * a 3x performance increase has been measured, can be made even greater (10x) if we cache the environment in child setup 2) stability * the exec is done in another process than beam, which means that if the file that we exec to is on an nfs that is not available right now we will not block a scheduler until the nfs returns. 3) simplicity * don't have to deal with SIGCHLD in the erts Unfortunately, this solution also implies some badness. 1) There will always be a seperate process running together with beam on unix. This could be confusing and undesirable. 2) We have to transfer the entire environment to child_setup for each command. OTP-13088
2015-12-15erts: Move sys drivers to another fileLukas Larsson
2015-12-15erts: Change name of child_setup to erl_child_setupLukas Larsson
2015-12-15erts: Rename sys driver structsLukas Larsson
2015-12-15erts: Refactor out erts functions from hashLukas Larsson
2015-12-15erts: Bump driver minor versionLukas Larsson
2015-12-15erts: Add erl_drv_set_pidLukas Larsson
OTP-13087
2015-12-15erts: Add support for asynchronous open_portLukas Larsson
OTP-13086
2015-12-15Update release notesErlang/OTP
2015-12-15Update version numbersErlang/OTP
2015-12-14Merge branch 'bjorn/deprecate-random/OTP-12502'Björn Gustavsson
* bjorn/deprecate-random/OTP-12502: Deprecate the 'random' module Eliminate mentions of 'random' in documentation mnesia tests: Replace 'random' with 'rand' percept tests: Replace 'random' with 'rand' system tests: Replace 'random' with 'rand' common_test tests: Replace 'random' with 'rand' gs: Remove the contribs directory wx: Replace 'random' with 'rand' stdlib tests: Replace 'random' with 'rand' kernel test: Replace 'random' with 'rand' debugger tests: Replace 'random' with 'rand' compiler tests: Replace 'random' with 'rand' Emulator test suite: Replace use of 'random' with 'rand' Use 'rand' instead of the obsolete 'random' module compile: Eliminate use of the obsolete 'random' module
2015-12-14Eliminate mentions of 'random' in documentationBjörn Gustavsson
2015-12-14system tests: Replace 'random' with 'rand'Björn Gustavsson
2015-12-14Don't wait for twice the delay_write timeoutAlexey Lebedeff
This happens only during processing ALIVE2 request. reply() already performs the same delay as in the deleted code.
2015-12-14Update preloaded modulesHenrik Nord
2015-12-14Merge branch 'maint'Ingela Anderton Andin
2015-12-11Merge branch 'sverk/setnode-rename-bug/OTP-13076' into maintSverker Eriksson
* sverk/setnode-rename-bug/OTP-13076: erts: Fix correct node name for DTRACE
2015-12-11erts: Fix correct node name for DTRACESverker Eriksson
broken by 949de78331b9c4ecb9.
2015-12-11Merge branch 'maint'Sverker Eriksson
2015-12-11Merge branch 'sverk/dist-ctrl-msg-overflow' into maintSverker Eriksson
* sverk/dist-ctrl-msg-overflow: erts: Fix faulty cleanup when receiving broken dist msg
2015-12-11Emulator test suite: Replace use of 'random' with 'rand'Björn Gustavsson
2015-12-11erts: Fix faulty cleanup when receiving broken dist msgSverker Eriksson
Bug introduced in ce8279d6a48d41f9. Thank you valgrind.
2015-12-10Merge branch 'sverk/hash-thresholds'Sverker Eriksson
* sverk/hash-thresholds: erts: Remove unused include files from hash.c erts: Redesign grow/shrink thresholds of hash.c erts: Remove dead code erts_hash_merge
2015-12-10erts: Add sizeMask for faster proc dict indexingSverker Eriksson
2015-12-09erts: Remove ProcDict.usedSverker Eriksson
(homeSize + splitPosition) will do just fine
2015-12-09erts: Add proc dict macros ERTS_PD_START/SIZESverker Eriksson
2015-12-09erts: Optimize away function "array_put" in proc dictSverker Eriksson
Replace heave array_put() with a dumb array index assignment ARRAY_PUT and instead introduce ensure_array_size() to be called when we know the array might need to grow. This change also ensures the entire HASH_RANGE is always allocated. No need for ARRAY_GET to check index any more.
2015-12-09erts: Optimize hashing in process dictionarySverker Eriksson
by limiting table sizes to powers of 2. This will change the default size from 10 to 8.
2015-12-09Merge branch 'sverk/dist-ctrl-msg-overflow-master' into masterSverker Eriksson
* sverk/dist-ctrl-msg-overflow-master: erts: Tweak hashmap heap size estimation erts: Fix bug for remote control message containing fat maps erts: Add test for remote exit signal with fat map erts: Fix bug in heap_factory_undo for FACTORY_HEAP_FRAGS mode
2015-12-09Merge branch 'sverk/dist-ctrl-msg-overflow' into maintSverker Eriksson
OTP-13146 (more stuff) * sverk/dist-ctrl-msg-overflow: erts: Tweak hashmap heap size estimation erts: Fix bug for remote control message containing fat maps erts: Add test for remote exit signal with fat map erts: Fix bug in heap_factory_undo for FACTORY_HEAP_FRAGS mode
2015-12-09Merge branch 'egil/pd-opt-get/OTP-13167'Björn-Egil Dahlberg
* egil/pd-opt-get/OTP-13167: erts: Add i_get_hash instruction erts: Use internal hash for process dictionaries
2015-12-09Fix check_process_code()Rickard Green
2015-12-09Merge branch 'maint'Hans Bolinder
* maint: erts: Correct the types section in The Abstract Format document
2015-12-09erts: Correct the types section in The Abstract Format documentHans Bolinder
Fixed a mistake in commit 23885a.
2015-12-08Update preloaded modulesBjörn-Egil Dahlberg
2015-12-08Merge branch 'egil/term_type/OTP-13172'Björn-Egil Dahlberg
* egil/term_type/OTP-13172: Test erts_internal:term_type/1 erts: Let term_type/1 encompass all types erts: Change erts_internal:map_type/1 into term_type/1
2015-12-08Merge branch 'rickard/ohmq-fixup/OTP-13047'Rickard Green
* rickard/ohmq-fixup/OTP-13047: Replace off_heap_message_queue option with message_queue_data option Always use literal_alloc Distinguish between GC disabled by BIFs and other disabled GC Fix process_info(_, off_heap_message_queue) Off heap message queue test suite Remove unused variable Fix memory leaks