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* ta/ensure_dir_eexist:
filelib_SUITE: strenghten tests of filelib:ensure_dir/1
Don't return a false {error,eexist} in filelib:ensure_dir/1
OTP-8389 Because of a race condition, using filelib:ensure_dir/1 from
multiple processes to create the same path or parts of the same
directory structure, filelib:ensure_dir/1 could return a
meaningless {error,eexist}. That race condition has been
eliminated, and {error,eexist} will now be returned only if there
exists a regular file, device file, or some other non-directory
file with the same name. (Thanks to Tuncer Ayaz.)
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* mp/hipe-smp-fixes:
work around hipe_mfa_info_table lock omission
fix hipe loader SMP non-atomicity error
OTP-8397 The loading of native code was not properly atomic in the SMP
emulator, which could cause crashes. Also a per-MFA information
table for the native code has now been protected with a lock
since it turns that it could be accessed concurrently in the SMP
emulator. (Thanks to Mikael Pettersson.)
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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)
- 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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Loading native code is a multi-step operation that needs to be
atomic, but the HiPE loader failed to ensure that.
This caused corruption of runtime system structure in some cases.
Fix by blocking multi_scheduling around main loader entry points.
Signed-off-by: Mikael Pettersson <[email protected]>
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* rb/stdlib_re_unicode_fixes:
Fix lost unicode option in re:compile()
Refactor out repeated block in re module
Fix re:replace/4 to handle unicode charlist Replacement argument
Fix re:replace/4 to handle unicode charlist RE argument
Fix re:replace/4 to handle binary unicode output when nothing replaced
OTP-8394 A number of bugs concerning re and unicode are corrected:
- re:compile no longer loses unicode option, which also fixes bug
in re:split.
- re:replace now handles unicode charlist replacement argument
- re:replace now handles unicode RE charlist argument correctly
- re:replace now handles binary unicode output correctly when
nothing is replaced.
Most code, testcases and error isolation done by Rory Byrne.
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Noticed-by: Rory Byrne
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A bug in re:replace/4 causes a badarg exception to be thrown when the
Replacement argument is a charlist containing non-ascii codepoints.
The problem is that the code incorrectly assumes that the Replacement
text is iodata() and calls iolist_to_binary/1 on it. This patch fixes
it to obey the 'unicode' option and handle charlist() Replacement
arguments correctly.
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The real problem is in the re:run/3 BIF.
Noticed-by: Rory Byrne
Tests-by: Rory Byrne
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A bug with re:replace/4 causes an exception when: (a) it's given a
unicode charlist as input; (b) it's set to {return,binary}; and
(c) it finds nothing to replace.
The problem is: when re:replace/4 does not find anything to replace
in its Subject input, it calls iolist_to_binary on this data. This
fails if the original input is a charlist with non-ascii codepoints.
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For example, if an archive (app-vsn.ez) just contains an
app-vsn/ebin/mod.beam file, the file info for the app-vsn and
app-vsn/ebin directories are faked using the file info from the
archive file as origin. The virtual direcories can also be
listed. For short, the top directories are virtual if they does
not exist.
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deletion of files when compiled with debug option. Changed LC_CTYPE for sunos of certain versions.
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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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Test that filelib:ensure_dir/1 returns {error,eexist} if
there already exists a regular file with the name as
a directory that should be created.
While at it, slightly strenghten the otp_5960/1 test case
by repeating each call to filelib:ensure_dir/1.
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* bg/public_key-include_lib:
public_key: fix build of test suites on Windows
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* uw/shell-tab-completion:
Shell tab completion now works for quoted module and function names
OTP-8383 Shell tab completion now works for quoted module and function
names. (Thanks to Ulf Wiger.)
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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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between the httpc manager and request handler was synchronous.
When the manager starts a new request handler, this is no longer
a synchronous operation. Previously, the new request handler made
the connection to the server and issuing of the first request
(the reason for starting it) in the gen_server init function. If
the connection for some reason "took some time", the manager
hanged, leaving all other activities by that manager also
hanging. As a side-effect of these changes, some modules was also
renamed, and a new api module, httpc, has been introduced (the
old module, http, is *not* removed, but is now just wrapper for
httpc).
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OTP-8349, OTP-8351, OTP-8352, OTP-8359 & OTP-8371.
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On Windows, the ERL_TOP environment variable contains
a path that only is valid for cygwin-enabled programs,
such as 'make'. It is not meaningful to pass the value
of $ERL_TOP in the -I option to the Erlang compiler,
because the Erlang emualator does not interpret cygwin
paths correctly. Therefore, -include("test_server.hrl")
will fail to find test_server.hrl.
Work around the problem by using -include_lib().
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With this flag, warnings are treated as errors, like gcc flag '-Werror'.
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Changed representation of wxTreeItem to be int.
This saves memory, where the driver don't need to keep a reference map
for every tree item.
And added getFirstChild and getNextChild to wxTreeCtrl.
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You could get a reference to another applications memory, if wx had
deleted that applications memory without the drivers knowledge about
it, typically memory allocated by wx and not the application using
classes where wx-driver can't override the desctructors.
When wx allocated new memory and got a pointer to that memory, the
wx-driver detected the same pointer and forwarded the old ref to
erlang.
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* dgud/ssl-patches-from-Wil:
Added a public_key:pkix_transform/2 instead and used it from ssl.
Minor code cleanup
new_ssl fix session reuse
Code cleanup
Send CA list during Certificate Request in new_ssl
OTP-8372 Fixed session reuse (in new_ssl), thanks Wil Tan.
Send CA list during Certificate Request (in new_ssl) , thanks Wil
Tan.
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* bg/compiler-beam_validator:
beam_validator: fix incorrect assumptions about GC guard BIFs
OTP-8378 In rare circumstances when using garbaging collecting guard BIFs,
the validation pass (beam_validator) would signal that the code
was unsafe, when it in fact was correct. (Thanks to Kiran
Khaladkar.)
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* fh/common_test-includes:
make it possible to include ct.hrl using include_lib
Include test_servers's include files in the bootstrap
OTP-8379 It is now possible to include the ct.hrl using the -include_lib
directive. (Thanks to Fred Hebert.)
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This is about the non-atomicity of filelib:ensure_dir/1.
When using filelib:ensure_dir/1 from multiple processes to create
the same path or parts of the same directory structure (which happens
with rebar's worker processes) it happens quite a lot that between
a file:read_file_info/1 and file:make_dir/1 one of the other procs
has already created the directory we want to create.
mkdir(1) says one of the following for -p depending on which Unix
like system you're on:
"no error if existing"
"no error will be reported if a directory given as an operand already
exists"
I've seen more than one Erlang project where the return value of
ensure_dir/1 is ignored completely.
To eliminate the race condition, call file:make_dir/1 without first
testing whether the directory exists. If it succeeds everything
is fine. Otherwise, if the error code is {error,eexists}, check
whether the directory exists. If it does, everything is fine;
if not, return {error,eexist} (which indicates that there
exists a regular file with the same name, or (more unlikely)
that another process removed the directory after the call
to file:make_dir/1).
Signed-off-by: Tuncer Ayaz <[email protected]>
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It is major annoyance that ct.hrl cannot be included
using "-include_lib". The problem is that ct.hrl in turn
includes the test_server include files using "-include".
Fix it by using "-include_lib" in ct.hrl.
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OTP-8351, OTP-8359 & OTP-8371.
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The beam_validator pass incorrectly assumes that a GC guard
BIF (such as length/1) may first do a garbage collection
and then fail. That assumption is not correct (guards BIF
only do garbage collection when it is known that the BIF
call will succeed), and will cause the compiler to reject
valid programs.
Modify the beam_validator to assume that if the branch is
taken for a gc_bif instruction, all registers are unchanged
and no garbage collection has occurred. Also add a comment
in the emulator about that assumption.
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OTP-8351, OTP-8359 & OTP-8371.
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OTP-8351, OTP-8359 & OTP-8371.
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OTP-8351, OTP-8359 & OTP-8371.
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fragments was created. This will mainly benefit NIFs that return
large compound terms.
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* bg/otp_build-improvements:
Fix spelling, remove obsolete command
Support updating preloaded files in a git repository
Support updating the primary bootstrap in a git repository
Determine which VCS is being used
stdlib makefile: Add explicit rule
OTP-8369: bg/otp_build-improvements
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When an SSL client presents a previous session ID, the server should
either honour the request to reuse the parameters previously negotiated
for the given session ID, or ignore the request and generate a new
session ID.
In this situation, new_ssl tries to complete the handshake by sending
the client a "Finished" handshake message, which violates the SSL/TLS
specs. It should instead send a ChangeCipherSpec message before sending
the FInished message. This patch fixes it.
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