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The implementation is still hidden behind ERTS_ENABLE_LOCK_COUNT, and
all categories are still enabled by default, but the actual counting can be
toggled at will.
OTP-13170
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bind to device is needed to properly support VRF-Lite under
Linux (see [1] for details).
[1]: https://www.kernel.org/doc/Documentation/networking/vrf.txt
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* goeldeepak/erts/fix_inet_gethost_long/ERL-61/PR-1345/OTP-14310:
This patch fixes the issue in which erlang fails to start if the hostname is 64 characters on a linux system.
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if the hostname is 64 characters on a linux system.
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Work around broken build system by checking
actual zlib version in runtime.
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ERL_DRV_USE_NO_CALLBACK only meaningful when deselecting.
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* g-andrade/kernel/fetch_ztream_dictionary/PR-1139/OTP-13842:
Update preloaded modules
Specify min zlib ver on inflateGetDictionary doc
Skip inflateGetDictionary test case if unsupported
zlib: Only link inflateGetDictionary if available
zlib: Add test case for inflateGetDictionary
zlib: support extraction of inflation dictionary
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Which at the moment means zlib versions >= 1.2.8.
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* saleyn/uds/PR-612/OTP-13572:
AF_UNIX is more portable
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Fix dialyzer warning for improper list in prim_inet
by not using an improper list.
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* saleyn/uds/PR-612/OTP-13572:
Rewrite inet* for address family 'local'
Rewrite inet_drv for AF_LOCAL
Assign externally open fd to gen_tcp (UDS support)
Conflicts:
erts/preloaded/ebin/prim_inet.beam
lib/kernel/doc/src/gen_tcp.xml
lib/kernel/doc/src/gen_udp.xml
lib/kernel/src/inet6_sctp.erl
lib/kernel/test/inet_SUITE.erl
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* henrik/update-copyrightyear:
update copyright-year
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This is mostly a pure refactoring.
Except for the buggy cases when calling erlang:halt() with a positive
integer in the range -(INT_MIN+2) to -INT_MIN that got confused with
ERTS_ABORT_EXIT, ERTS_DUMP_EXIT and ERTS_INTR_EXIT.
Outcome OLD erl_exit(n, ) NEW erts_exit(n, )
------- ------------------- -------------------------------------------
exit(Status) n = -Status <= 0 n = Status >= 0
crashdump+abort n > 0, ignore n n = ERTS_ERROR_EXIT < 0
The outcome of the old ERTS_ABORT_EXIT, ERTS_INTR_EXIT and
ERTS_DUMP_EXIT are the same as before (even though their values have
changed).
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* maint:
Fix inet driver multi timers using new time API
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* rickard/tcp-accept-tmo-bug/OTP-13254:
Fix inet driver multi timers using new time API
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* maint:
efile_drv: logic error in compressed file write
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When a AF_LOCAL file descriptor is created externally (e.g. Unix
Domain Socket) and passed to `gen_tcp:listen(0, [{fd, FD}])`, the
implementation incorrectly assigned the address family to be equal
to `inet`, which in the inet_drv driver translated to AF_INET instead
of AF_LOCAL (or AF_UNIX), and an `einval` error code was returned.
This patch fixes this problem such that the file descriptors of the
`local` address family are supported in the inet:fdopen/5,
gen_tcp:connect/3, gen_tcp:listen/2, gen_udp:open/2 calls
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Compiling OTP 18.2.1 with gcc-5.3 shows the following warning:
drivers/common/efile_drv.c:1538:23: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses]
The code in question is:
if (! (status =
erts_gzwrite((ErtsGzFile)d->fd,
iov[i].iov_base,
iov[i].iov_len)) == iov[i].iov_len) {
d->errInfo.posix_errno =
d->errInfo.os_errno = errno; /* XXX Correct? */
break;
}
If we hoist the assignment out of the if for clarity, it becomes:
status = erts_gzwrite(..., iov[i].iov_len);
if (! status == iov[i].iov_len) { ...; break; }
iov_len is > 0 here, and status will equal iov_len if erts_gzwrite
succeeded, but will be less than iov_len if an error occurred.
"! status" is 0 or 1, which can only equal iov_len if iov_len is 1 and
erts_gzwrite detected an error and returned 0.
The effect of this mistake is that any error when iov_len >= 2 will
skip the conditional code and break statement. In particular, partial
writes (0 < status && status < iov_len) will not be flagged as errors.
All releases since OTP R8B-0 are affected.
The variable "status" is really a boolean, which is to be set to zero
on error. The fix is to set status to 1 if erts_gzwrite() returned iov_len
and 0 otherwise, and to change the condition to "if (! status) ...".
I'm also hoisting the assignment out of the condition since it obscures
the code while providing not benefit (the condition in a while or for
loop would be a different matter).
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Conflicts:
OTP_VERSION
erts/doc/src/notes.xml
erts/vsn.mk
lib/kernel/doc/src/notes.xml
lib/kernel/src/kernel.appup.src
lib/kernel/vsn.mk
lib/ssl/doc/src/notes.xml
lib/ssl/src/ssl.appup.src
lib/ssl/src/ssl_cipher.erl
lib/ssl/vsn.mk
otp_versions.table
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OTP-13147
* sverk/cpool_fetch-dc_list-fix:
erts: Reduce alloc_SUITE:rbtree runtime for valgrind
erts: Remove double free in efile_drv
erts: Improve alloc_SUITE:migration test
erts: Pass free mem and build type to alloc_SUITE tests
erts: Fix snprintf in alloc_SUITE for windows
erts: Workaround for strange crash on win64 in alloc_SUITE test code
erts: Refactor alloc_SUITE to use NIFs instead of drivers
erts: Add enif_getenv
erts: Make key argument constant for erl_drv_{get|put}env
erts: Add alloc_SUITE:migration
erts: Add TEST allocator
erts: Fix confusion of callbacks destroying_mbc() vs remove_mbc()
erts: Fix resurrection of carriers from dc_list
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That double free is probably very seldom invoked as the port is already
gone leading to free_data being called instead of file_async_ready.
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A new {line_delimiter, byte()} option allows line-oriented TCP-based
protocols to use a custom line delimiting character. It is to be
used in conjunction with {packet, line}.
This option also works with erlang:decode_packet/3 when its first argument
is 'line'.
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A new {line_delimiter, byte()} option allows line-oriented TCP-based protocols
to use a custom line delimiting character. It is to be used in conjunction
with {packet, line}.
This option also works with erlang:decode_packet/3 when its first argument
is 'line'.
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Caused stack corruption leading to VM crash on windows.
{packet,ssl_tls} is undocumented by the way.
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The OSE port is no longer supported and this commit removed it
and any changes related to it. The things that were general
improvements have been left in the code.
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* nybek/fix_so_linger_zero__simple:
Update prim_inet.beam
Fix socket option {linger, {true, 0}} to abort TCP connections
Apply 'show_econnreset' socket option to send errors as well
Add 'show_econnreset' TCP socket option
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Up until now, if {linger, {true, 0}} is set on the socket and there is
data in the port driver queue, the connection is not aborted until
the port queue is empty and close() is called on the underlying file
descriptor. This bug allows an idle TCP client to prevent a server
from terminating the connection and freeing resources. This patch
fixes the problem by discarding the port queue if the socket is closed
when {linger, {true, 0}} is set.
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Up till now all send errors have been translated into a generic
{error, closed}. This patch allows {error, econnreset} to be
returned on send errors when it is detected that the TCP peer
has sent an RST.
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An ECONNRESET is a socket error which tells us that a TCP peer has sent
an RST. The RST indicates that they have aborted the connection and
that the payload we have received should not be considered complete. Up
until now, the implementation of TCP in inet_drv.c has hidden the
receipt of the RST from the user, treating it as though it was just
a FIN terminating the read side of the socket.
There are many cases where user code needs to be able to distinguish
between a socket that was closed normally and one that was aborted.
Setting the option {show_econnreset, true} enables the user to receive
ECONNRESET errors on both active and passive sockets.
A connected socket returned from gen_tcp:accept/1 will inherit the
show_econnreset setting of the listening socket.
By default this option is set to {show_econnreset, false}.
Note that this patch only enables the reporting of ECONNRESET when
the socket is being read from. It does not report ECONNRESET (or
EPIPE) when the user tries to write to a connection when an RST
has already been received. Currently the TCP implementation in
inet_drv.c hides all such send errors from the user in favour
of returning {error, close}. A separate patch will be needed to
enable the reporting of such errors.
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