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Conflicts:
erts/emulator/beam/erl_alloc.types
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_process.c
erts/preloaded/ebin/erts_internal.beam
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Change scheduler responsiveness to 'check_schedulers'.
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Add functions to 'code' to allow loading of multiple modules
at once.
code:atomic_load(Modules) will load all modules at once, or fail
having loaded none of them. Since we cannot guarantee the atomicity if
there are modules with -on_load functions, the list of modules must
not contain any modules with an -on_load function.
Also, to make it possible to put an application into an inactive state
for as short time as possible, also add code:prepare_loading/1 and
code:finish_loading/1. They are used like this:
{ok,Prepared} = code:prepare_loading(Modules)
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ok = code:finish_loading(Prepared)
code:ensure_modules_loaded/1 is useful as a pure optimization to
ensure that modules that will be needed soon have indeed been
loaded. It will not reload modules that have already been loaded and
it *will* accept modules that have an on_load function. Therefore, it
does not make sense to give any atomicity guarantees.
I did consider overloading the existing code:ensure_loaded/1
function, but rejected it because the return value is very
different. Having different forms of return values depending
on the types of arguments is confusing.
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After loading a module without native code, it is still necessary
to call hipe_unified_loader:post_beam_load() to ensure that any
native calls to the module is done to the newly loaded module
(and not to a previous version of the module in native code).
Unfortunately, hipe_unified_loader:post_beam_load() can be slow
and most of the time it doesn't do anything because no previous
native code was loaded. Therefore, ad2962278f added a kludge using
the process dictionary to avoid calling post_beam_load() if no
native code at all has been loaded.
Remove the kludge by keeping track exactly of which modules that
have native code in the existing ets table. Also generalize
post_beam_load() to handle severals modules at once, since we
will soon need that functionality.
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The main ets table kept by code_server contains several pieces
of information. Therefore, code_server:all_loaded/1 need to
filter the information in the table.
code_server:all_loaded/1 can be simplified if we use
ets:select/2. Currently, the filtering is done by filtering
away unwanted stuff ({sticky_dir,Mod} tuples). It is more
robust to filter on the stuff that we want to keep
({Mod,Path} tuples, where Mod is an atom) in case that we'll
add more auxiliary records to the table later.
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When we are going to implement functions that can load many modules
at once, we don't the erl_prim_loader server to become a bottleneck.
Therefore, we need erl_prim_loader:get_modules/3 that can read many
BEAM files in parallel.
Note that we will not bother making reading from archive files
or using the inet loader efficient. That can be done later if it
turns out to be important.
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* bernardd/gen_tcp_export_socket:
Export gen_tcp:socket() type
OTP-13380
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from debug and example code
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In addition, the heart API is extended with the following functions:
* heart:set_options/1
* heart:get_options/0
If heart:set_options([scheduler]) is set, heart will check
scheduler responsiveness before every heartbeat to the heart port.
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* bjorn/remove-test_server/OTP-12705:
Remove test_server as a standalone application
Erlang mode for Emacs: Include ct.hrl instead test_server.hrl
Remove out-commented references to the test_server applications
Makefiles: Remove test_server from include path and code path
Eliminate use of test_server.hrl and test_server_line.hrl
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* legoscia/prettier-default-error-logger/OTP-13325:
Prettify default error_logger output somewhat
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* maint:
kernel: Correct contract for inet:getifaddrs/1
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See also http://bugs.erlang.org/browse/ERL-95.
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The test_server application has previously been deprecated.
In OTP 19, we will move relevant parts of test_server into the
common_test application. Test suites that include test_server.hrl
must be updated to include ct.hrl instead. Test suites that include
test_server_line.hrl must removed that inclusion. Test suites that
call the test_server module directly will continue to work in OTP 19.
The test suites for Erlang/OTP are built and executed in exactly
the same way as previously.
Here are some more details.
The modules test_server*.erl and erl2html2.erl in lib/test_server/src
have been moved to common_test/src.
The test_server.hrl and test_server_line.hrl include files have
been deleted. The macros in test_server.hrl have been copied into
lib/common_test/include/ct.hrl.
The ts*.erl modules and their associated data files in
lib/test_server/src has been been moved to the new directory
lib/common_test/test_server. The ts* modules are no longer built
to lib/common_test/ebin. They will only built when 'make release_tests'
is executed.
The test suite for test_server has been moved to lib/common_test/test.
The rest of the files have been deleted.
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Cleanliness.
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Since no test suites includede test_server.hrl, there is no need
to have test_server in the include path or code path.
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As a first step to removing the test_server application as
as its own separate application, change the inclusion of
test_server.hrl to an inclusion of ct.hrl and remove the
inclusion of test_server_line.hrl.
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* maint:
xmerl: Remove 'no_return' Dialyzer warnings
xmerl: Add suppression of Dialyzer warnings
eunit: Add suppression of Dialyzer warnings
debugger: Add suppression of Dialyzer warnings
kernel: Add suppression of Dialyzer warnings
mnesia: Add suppression of Dialyzer warnings
observer: Add suppression of Dialyzer warnings
runtime_tools: Add suppression of Dialyzer warnings
stdlib: Add suppression of Dialyzer warnings
test_server: Add suppression of Dialyzer warnings
tools: Add suppression of Dialyzer warnings
Conflicts:
lib/stdlib/src/erl_lint.erl
lib/stdlib/src/otp_internal.erl
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Before a heartbeat to the port program a responsiveness check of
the schedulers is performed. If the responsiveness check fails,
stalls, the heartbeat will not be performed (as intended).
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* heart:set_callback/2
* heart:get_callback/0
* heart:clear_callback/0
The callback is called before every heartbeat to the heart port.
The callback needs to return 'ok' if the validation is correct.
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The default error logger, the one in use before a more sophisticated
error logger can be installed, has rather terse output, in part because
it cannot rely on io:format. This patch attempts to improve the error
logger within that constraint:
- Print timestamps as YYYY-MM-DD HH:MM:SS
- For error reports with format strings, just print the format string
and the format arguments on separate lines
- For error reports with tuple lists, print each pair on a separate line
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Eliminate duplicated code by factoring out the common code
for starting erl_boot_server and a slave node.
Also, in the new start_boot_server/0 helper, fix a problem
with Linux systems that assign 127.0.1.1 as the IP address
for the hostname.
Also stop using the -setcookie option when starting a node
using -loader inet. The inet loading method doesn't use
the distribution anymore.
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Allow IPv6 nodes to register with and query epmd. On systems with
IPv6 support:
* epmd listens on both the IPv4 and IPv6 ANY or loopback sockets
* the epmd cli client connects to epmd over the IPv6 loopback
* distributed nodes started with "-proto_dist inet6_tcp" will register
with epmd over IPv6
To work on IPv6 capable systems that have IPv6 support disabled,
epmd ignores errors opening the socket if the protocol is not
supported. Similarly, the epmd client will fall back to IPv4 if the IPv6
socket is not available.
Update the minimum supported version of Windows to Windows Vista to
support IPv6.
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* legoscia/patch-3:
Fix documentation of net_kernel:allow/1
OTP-13299
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When handling a gen_tcp socket, it's handy to be able to give it its proper type
and have dialyzer be able to validate it, rather than falling back on using
port(). The gen_udp equivalent is already exported.
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* lukas/erts/msacc:
Update preloaded modules
erts: Make msacc alloctor type thread safe
Silence compiler
erts: Fix msacc testcase on some windowses
erts: Add power saving cpu feature tests and use them
erts: Refactor perf counter internal interface
erts: Add rdtscp instruction check
erts: Fix hrtime for windows
erts: use correct function for perf counter on non-x86
erts: Fix msacc win32 debug compile error
erts: Add microstate accounting
erts, kernel: Add os:perf_counter function
erts: Add ERTS_WRITE_UNLIKELY
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* maint:
Use nano second time unit in tracing
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* rickard/monotonic-time-improvements/OTP-13222:
Use nano second time unit in tracing
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The perf_counter is a very very cheap and high resolution timer
that can be used to timestamp system events. It does not have
monoticity guarantees, but should on most OS's expose a monotonous
time.
A special instruction has been created for this counter to further
speed up fetching it.
OTP-12908
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* maint:
Introduce time management in native APIs
Introduce time warp safe replacement for safe_fixed option
Introduce time warp safe trace timestamp formats
Conflicts:
erts/emulator/beam/erl_bif_trace.c
erts/emulator/beam/erl_driver.h
erts/emulator/beam/erl_nif.h
erts/emulator/beam/erl_trace.c
erts/preloaded/ebin/erlang.beam
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* rickard/monotonic-time-improvements/OTP-13222:
Introduce time management in native APIs
Introduce time warp safe replacement for safe_fixed option
Introduce time warp safe trace timestamp formats
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* bjorn/kernel/clean-up-code_server:
code_server: Add specs for all exported functions
code_server: Add types to the state record
code_server: Don't export internal system_* functions
Simplify starting of code server
Remove first argument of code_server:call()
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* maint:
Update documentation for code-loading functions
code: Correct the types for error returns
Eliminate run-time system crash in code:load_abs/1
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Some of the error reasons were not explained.
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The specifications for functions that load code in the 'code'
module (e.g. code:load_file/1) have some problems:
* The specs claim that the functions can return {error,on_load}, but
they never do. However, they can return {error,on_load_failure} if
the -on_load function in a module fails.
* The specs claim that the functions can return {error,native_code},
but they never do.
While we are it, also extend the on_load_errors/1 test case to test
that the load functions return {error,on_load_failure} when an
-on_load function fails.
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