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* 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
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* rickard/generic-thr-queue/OTP-9632:
Give elements of lock-free queues some time to be deallocated
Fix cleanup of elements in lock-free queues
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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.
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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.
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The io_list_len() function returns an int, where a negative return
value indicates a type error. One problem is that an int only consists
of 32 bits in a 64-bit emulator. Changing the return type to Sint
will solve that problem, but in the 32-bit emulator, a large iolist
and a iolist with a type error will both return a negative number.
(Noticed by Jon Meredith.)
Another problem is that for iolists whose total size exceed the
word size, the result would be truncated, leading to a subsequent
buffer overflow and emulator crash.
Therefore, introduce the new erts_iolist_size() function which
returns a status indication and writes the result size through
a passed pointer. If the result size does not fit in a word,
return an overflow indication.
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Also rename the fun_to_port/1 test case to outputv_errors/1 and
test sending more kinds of bad data to an outputv-enabled driver.
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* sverker/driver_SUITE_smp_select_nice_fail/OTP-9042:
Allow unexpected driver input event in driver_SUITE:smp_select
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epoll on Linux has been seen to sometimes trigger unexpected
events. Most of the time these events are filtered by erl_check_io,
but may slip up to the driver in cases when fd's are reused.
Also made clear in driver docs that spurious events may happen.
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* sverker/ets_halfword_highmem/OTP-8941:
HALFWORD ETS Fix copyright year in some source files
Fix vm crash in kernel test case seq_trace_SUITE:call
remove NIF compile warning: no previous prototype for ‘nif_init’
Refuse to load NIF library on wrong VM variant (halfword/fullword)
HALFWORD ETS match spec heap fragment optimization
HALFWORD ETS removed eheap and improved test case t_match_spec_run
HALFWORD ETS Further match spec optimization to minimize copying and garbage
HALFWORD ETS db_prog_match optimization
HALFWORD ETS Fix segv for match spec with several function and guards
HALFWORD Make system_info mseg_alloc report both low/high mem
HALFWORD Fix segv caused by erlang:halt
HALFWORD Make more allocators use high mem (binary, fixed and driver)
HALFWORD ETS 32-bit arch fixes and other cleanups
HALFWORD ETS nicer update_element
HALFWORD ETS Real matching on relative terms
HALFWORD first stab at high mem alloc
HALFWORD ETS relative terms
Conflicts:
erts/emulator/test/driver_SUITE.erl
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