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interfaces
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* hans/erl_docgen/datatype_title/OTP-15000:
erl_docgen: Add datatype-title tag to datatype tag
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* ingela/ssl/DTLS-ECC:
ssl: Cleaner test setup to avoid unintentional test case dependencies
ssl: Correct ECC suite and DTLS ECC handling
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* dgud/observer/fix-config-bug/OTP-14993:
Fix crash when config was wrong
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* dgud/testcase-fixes:
debug info
add unicode opt env may contain unicode signs
Fix lexemes conversion
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* dgud/revert-string-depr:
Revert "Deprecate old string functions"
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When test handling was corrected it was obvious that DTLS ECC handling
was not compleated.
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jhogberg/john/erts/any-term-as-seq_trace-label/OTP-14899
Lift the type restrictions on seq_trace token labels
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bjorng/bjorn/compiler/fix-atom-leak/ERL-563/OTP-14968
Stop the compiler from overflowing the atom table
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Fix a small typo
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* raimo/type-posix-0-overhaul/ERL_550/OTP-14019:
Update types for posix error codes
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I have read the man pages for most socket and file operations
on recent Linux, FreeBSD, OpenBSD and Solaris 10 and noted
the possible error codes.
Which error codes that are possible for file operations have
been updated in file:posix/0. Error codes for socket operations
in inet:posix/0. The latter refers to the former so it is
a superset, assuming that e.g sendfile and AF_UNIX socket
operations could cause socket operations to return any file
error code. That is not entirely true, but could be,
especially in the future.
Added to file:posix/0 are:
ebadmsg edeadlk edeadlock eftype emultihop enobufs enolck enolink
enosr enostr enosys eopnotsupp eoverflow erange etxtbsy
Added to inet:posix/0 are all but:
exbadport exbadseq file:posix()
These are still possible according to erl_posix_str.c,
but are not in file:posix/0 nor in inet:posix/0,
and many of them are not file nor inet related, but some might be:
e2big eadv ealign ebade ebadfd ebadr ebadrpc ebadrqc
ebadslt ebfont echild echrng ecomm edirty
edom edotdot eduppkg eidrm einit eisnam
elbin el2hlt el2nsync el3hlt el3rst
elibacc elibbad elibexec elibmax elibscn elnrng
enavail enet enoano enocsi enodata enoexec
enonet enosym enotempty enotnam enotuniq
eproclim eprocunavail eprogmismatch eprogunavail
erefused eremchg eremdev eremote eremoteio
eremoterelease erpcmismatch erremote eshutdown
esrmnt esuccesss etime etoomanyrefs
euclean eunatch eusers eversion exfull
sysnotready vernotsupported ediscon enomore
ecancelled einvalidproctable einvalidprovider eproviderfailedinit
syscallfailure service_not_found type_not_found e_no_more
e_cancelled unknown
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[ERL-557] add is_empty/1 to sets and ordsets
OTP-14996, ERL-557, PR-1703
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Use integer variable names instead of atoms in v3_core, sys_core_fold,
and v3_kernel to avoid overflowing the atom table.
It is a deliberate design decision to calculate the first free integer
variable name (in sys_core_fold and v3_kernel) instead of somehow
passing it from one pass to another. I don't want that kind of
dependency between compiler passes. Also note that the next free
variable name is not easily available after running the inliner.
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The way variables created by make_template() are used, it is necessary
that the names are unique in the entire function. This has not
happened to cause any problems in the past because all other compiler
passes created atom variable names, not integer variable names. If
other passes start to create integer variable names, this bug is
exposed.
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During compilation, the bs_save2 and bs_restore2 instructions contain a match
context reference. That reference is the variable name that holds the match context.
beam_clean assumes that the reference always is an atom, which is not a safe assumption
since integers are legal variable names in Core Erlang.
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* rickard/signals/OTP-14589:
Fix VM probes compilation
Fix lock counting
Fix signal order for is_process_alive
Fix signal handling priority elevation
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Fix a simple typo in xmerl documentation
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* hans/ssh/exec_fun_mfa/OTP-14851:
ssh: Document the exec option
ssh: Simplification of using fun:s as exec subsystems
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* hans/ssh/doc_fix_shell_return/OTP-14880:
ssh: Doc fix
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OTP-14899
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to only suggest missing OpenSSL if dlopen fails (load_failed).
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Point out the correct line in an exception for a bad generator
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It has been decided that it was to early to deprecate the old
string functions.
This partially reverts commit ccb3f7f9768d3c28783c771df47eec1829e51802.
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* maint:
Updated OTP version
Update release notes
Update version numbers
ssh: Fix bad spec for double_algs() in ssh.hrl
Test event insert from init
Fix init to allow all actions
Conflicts:
OTP_VERSION
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just to make it easier to do "rm -rf"
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* hans/ssh/spec_double_algs/OTP-14990:
ssh: Fix bad spec for double_algs() in ssh.hrl
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maint-20
* raimo/stdlib/fix-gen_statem-init-actions-check/OTP-13995:
Test event insert from init
Fix init to allow all actions
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And try to not save bad data in the config.
And also add a garbage_collect menu entry.
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When a generator in a list comprehension was given some
other term than a list, the wrong line could be pointed
out in the exception. Here is an example:
bad_generator() ->
[I || %%This line would be pointed out.
I <- not_a_list].
https://bugs.erlang.org/browse/ERL-572
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statistics(runtime) does not seem to work on some virtual machines.
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Implementation of true asynchronous signaling between processes
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Communication between Erlang processes has conceptually always been
performed through asynchronous signaling. The runtime system
implementation has however previously preformed most operation
synchronously. In a system with only one true thread of execution, this
is not problematic (often the opposite). In a system with multiple threads
of execution (as current runtime system implementation with SMP support)
it becomes problematic. This since it often involves locking of structures
when updating them which in turn cause resource contention. Utilizing
true asynchronous communication often avoids these resource contention
issues.
The case that triggered this change was contention on the link lock due
to frequent updates of the monitor trees during communication with a
frequently used server. The signal order delivery guarantees of the
language makes it hard to change the implementation of only some signals
to use true asynchronous signaling. Therefore the implementations
of (almost) all signals have been changed.
Currently the following signals have been implemented as true
asynchronous signals:
- Message signals
- Exit signals
- Monitor signals
- Demonitor signals
- Monitor triggered signals (DOWN, CHANGE, etc)
- Link signals
- Unlink signals
- Group leader signals
All of the above already defined as asynchronous signals in the
language. The implementation of messages signals was quite
asynchronous to begin with, but had quite strict delivery constraints
due to the ordering guarantees of signals between a pair of processes.
The previously used message queue partitioned into two halves has been
replaced by a more general signal queue partitioned into three parts
that service all kinds of signals. More details regarding the signal
queue can be found in comments in the erl_proc_sig_queue.h file.
The monitor and link implementations have also been completely replaced
in order to fit the new asynchronous signaling implementation as good
as possible. More details regarding the new monitor and link
implementations can be found in the erl_monitor_link.h file.
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* bjorn/misc-beam-fixes:
Correctly handle get_map_elements with a literal map
core_parse: Fix handling of negative sizes in binaries
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Remove unused cerl_messagean module
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