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OTP-8475 Driver threads, such as async threads, using port data locks
peeked at the port status field without proper locking when
looking up the driver queue.
OTP-8487 A call to the BIF unregister(RegName) when a port had the
name RegName registered in the runtime system without SMP
support caused a runtime system crash. (Thanks to Per Hedeland
for the bugfix and test case.)
OTP-8591 Fix memory management bug causing crash of non-SMP emulator
with async threads enabled. The bug did first appear in
R13B03.
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Driver API for multi-threading made available for NIFs.
Support for mempory managed (garbage collected) resource objects.
A way to pass "pointers" to native data structures between C and
Erlang in a safe way.
Support for references, floats and term comparison.
Various new functions, like enif_inspect_iolist_as_binary,
enif_make_sub_binary, enif_get_string, enif_get_atom,
enif_make_tuple_from_array, enif_make_list_from_array,
enif_make_existing_atom.
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Driver API for multi-threading made available for NIFs.
Support for mempory managed (garbage collected) resource objects.
A way to pass "pointers" to native data structures between C and
Erlang in a safe way.
Support for references, floats and term comparison.
Various new functions, like enif_inspect_iolist_as_binary,
enif_make_sub_binary, enif_get_string, enif_get_atom,
enif_make_tuple_from_array, enif_make_list_from_array,
enif_make_existing_atom.
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Driver API for multi-threading made available for NIFs.
Support for mempory managed (garbage collected) resource objects.
A way to pass "pointers" to native data structures between C and
Erlang in a safe way.
Various new functions, like enif_inspect_iolist_as_binary,
enif_make_sub_binary, enif_get_string, enif_get_atom,
enif_make_tuple_from_array, enif_make_list_from_array,
enif_make_existing_atom.
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* bd/doc-fixes:
Fix minor documentation errors
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* rani/inet_gethostbyname_fixes:
inet_res_SUITE: testcase fixes for legacy DNS resolver (Solaris 8)
inet_res: /etc/resolv.conf: use domain as default search list
inet: delayed/avoided read of /etc/resolv.conf and /etc/hosts
inet_gethost_native: workaround for empty result hostname on MacOS X
inet_res_SUITE: testcase fix for empty domain name
inet:gethostbyname improved to parse IP strings and look up own hostname
OTP-8426 The resolver routines failed to look up the own node name as
hostname, if the OS native resolver was erroneously configured,
bug reported by Yogish Baliga, now fixed.
The resolver routines now tries to parse the hostname as an IP
string as most OS resolvers do, unless the native resolver is
used.
The DNS resolver inet_res and file resolver inet_hosts now do not
read OS configuration files until they are needed. Since the
native resolver is default, in most cases they are never needed.
The DNS resolver's automatic updating of OS configuration file
data (/etc/resolv.conf) now uses the 'domain' keyword as default
search domain if there is no 'search' keyword.
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Fix three minor typos and reorder one of a pair of lists of functions so that
the ordering is consistent.
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Now inet:gethostbyname tries to parse the hostname as an IP string
first if the 'native' lookup method is not used. One can also
make the IP string parsing explicit using the new 'string'
lookup method, or avoid it using the new pseudo lookup
method 'nostring'.
In R13B04 a bug was introduced when the gethostbyname code
was rewritten, so if the native resolver was used and
misconfigured to not be able to look up the own hostname,
inet:gethostbyname also failed. This is now fixed.
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It is now possible to increase or decrease the maximum number of atoms
the VM can handle. The default value is 1048576 (1024*1024).
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environment after a number of bugs are fixed and some features
are added in the documentation build process.
- The arity calculation is updated.
- The module prefix used in the function names for bif's are
removed in the generated links so the links will look like
http://www.erlang.org/doc/man/erlang.html#append_element-2
instead of
http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2
- Enhanced the menu positioning in the html documentation when a
new page is loaded.
- A number of corrections in the generation of man pages (thanks
to Sergei Golovan)
- Moved some man pages to more apropriate sections, pages in
section 4 moved to 5 and pages in 6 moved to 7.
- The legal notice is taken from the xml book file so OTP's
build process can be used for non OTP applications.
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* cf/compile_warning_as_error:
Add option -Werror in erlc(1)
compile: add flag warnings_as_errors to treat warnings as errors
compile.erl: remove trailing whitespace
OTP-8382 The -Werror option for erlc and the compiler option
warnings_as_errors will cause warnings to be treated as errors.
(Thanks to Christopher Faulet.)
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Like in gcc, this option treats warnings as errors.
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* egil/binary-gc:
Add documentation for binary heap size settings.
Add tracing capabilities for binary virtual heap
Add min heap size start options to beam and erl
Improve binary garbage collection
OTP-8370 The default settings for garbage collection of binaries has been
adjusted to be less aggressive than in R13B03. It is now also
possible configure the settings for binary GC. See the
documentation for spawn_opt/2-5, erlang:system_info/1,
erlang:system_flag/2, process_flag/2-3, erlang:trace/3, and the
documenation for erl for the new command line options +hms and
+hmbs.
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Documentation of min_heap_size and min_bin_vheap size for:
* spawn_opt/2, spawn_opt/3, spawn_opt/4, spawn_opt/5
* erlang:system_flag/2
* erlang:system_info/1
* process_flag/2
* process_info/2
* erlang:trace/3
Documentation for the new beam start arguments:
+hms Size, Default minimum heap size for processes.
+hmbs Size, Default minimum binary virtual heap size.
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* jv/binary_to_term-opts:
document ErtsExternalDist flags and CON_ID mask
add options to binary_to_term
OTP-8367 There is new erlang:binary_to_binary/2 BIF that takes an option
list. The option safe can be used to prevent creation of
resources that are not garbage collected (such as atoms). (Thanks
to Jayson Vantuyl.)
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term_to_binary and binary_to_term are powerful tools that can be used easily in
lieu of a custom binary network protocol. Unfortunately, carefully crafted
data can be used to exhaust the memory in an Erlang node by merely attempting
to decode binaries. This makes it unsafe to receive data from untrusted
sources.
This is possible because binary_to_term/1 will allocate new atoms and new
external function references. These data structures are not garbage collected.
This patch implements the new form of binary_to_term that takes a list of
options, and a simple option called 'safe'. If specified, this option will
cause decoding to fail with a badarg error if an atom or external function
reference would be allocated.
In the general case, it will happily decode any Erlang term other than those
containing new atoms or new external function references. However, fun, pid,
and ref data types can embed atoms. They might fail to decode if one of these
embedded atoms is new to the node. This may be an issue if encoded binaries
are transferred between nodes or persisted between invocations of Erlang.
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Place HighestVersion before LowestVersion, since that is what the
source code does (erl_epmd.erl and epmd_srv.c).
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NIF function prototypes in order to allow more than 3 function
arguments. Also an incompatible change in the return value of
erlang:load_nif/2. Added support for references, floats and term
comparison in NIFs. Read more in the documentation of erl_nif and
erlang:load_nif/2.
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The correct value for the second argument to erlang:split_binary/2
(Pos) is 0, not 1.
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