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A quote from the Python 3 documentation:
| When interactive, stdout and stderr streams are line-buffered.
| Otherwise, they are block-buffered like regular text files.
As a result, if an exception occurred and PyErr_Print() was called, its output
could be buffered but not printed to the log for a while (ultimately, until
the interpreter finalization). If the application process crashed shortly,
the backtrace was completely lost.
Buffering can be disabled by redefining the sys.stderr stream object.
However, interference with standard environment objects was deemed undesirable.
Instead, sys.stderr.flush() is called every time after printing exceptions.
A potential advantage here is that lines from backtraces won't be mixed
with other lines in the log.
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PyCallable_Check() doesn't produce errors.
The needless call was introduced in fdd6ed28e3b9.
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PyObject_HasAttrString() is just a wrapper over PyObject_GetAttrString(),
while PyObject_CallMethod() calls it as the first step. As a result,
PyObject_GetAttrString() was called twice if close() was present.
To get rid of PyObject_HasAttrString() while keeping the same behaviour,
the PyObject_CallMethod() call has been decomposed into separate calls of
PyObject_GetAttrString() and PyObject_CallFunction().
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On success, PyObject_CallMethod() returns a new reference to
the result of the call, which previously got lost.
Also, error logging on failure was added.
The issue was introduced by b0148ec28c4d.
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According to the documentation, PyObject_GetIter():
| Raises TypeError and returns NULL if the object cannot be iterated.
Previously, this exception wasn't printed or cleared and remained unhandled.
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According to the documentation, PyIter_Next():
| If there are no remaining values, returns NULL with no exception set.
| If an error occurs while retrieving the item, returns NULL and passes
| along the exception.
Previously, this exception wasn't properly handled and the response was
finalized as successful.
This issue was introduced in b0148ec28c4d.
A check for PyErr_Occurred() located in the code below might print this
traceback or occasionally catch an exception from one of the two response
close() calls.
Albeit that exceptions from the close() calls also need to be catched,
it's clear that this particular check wasn't supposed to do so. This is
another issue and it will be fixed later.
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Keepalive connection is disabled if upstream response length
differs from specified in the "Content-Length" field value.
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While connect(2) states that non-blocking connect should use EPOLLOUT:
EINPROGRESS
The socket is non-blocking and the connection cannot be completed
immediately. It is possible to select(2) or poll(2) for completion by
selecting the socket for writing. After select(2) indicates writability,
use getsockopt(2) to read the SO_ERROR option at level SOL_SOCKET to
determine whether connect() completed successfully (SO_ERROR is zero)
or unsuccessfully (SO_ERROR is one of the usual error codes listed here,
explaining the reason for the failure).
On connect error, Linux 2.6.32 (CentOS 6) may return EPOLLRDHUP, EPOLLERR,
EPOLLHUP, EPOLLIN, but not EPOLLOUT.
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It unblocks other threads that can be forked by the application
to work in background.
This closes #336 issue on GitHub.
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There was a change (ruby/ruby@6c70fed) in Ruby 2.6 that moved
RUBY_DESCRIPTION global constant definition out of Init_version().
Unit initialized Ruby incorrectly, so the constant was not defined.
This closes #330 issue on GitHub.
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Name and value in each header are 0-terminated, so additional 2 bytes
should be allocated for them. There were several attempts to add these
2 bytes to headers in language modules, but some modules weren't updated.
Also, adding these 2 bytes is specific to the implementation which may be
changed later, so extending this mechanics to modules may cause errors.
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- Introduced nxt_runtime_process_port_create().
- Moved nxt_process_use() into nxt_process.c from nxt_runtime.c.
- Renamed nxt_runtime_process_remove_pid() as nxt_runtime_process_remove().
- Some public functions transformed to static.
This closes #327 issue on GitHub.
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This avoids memory leak reports from the address sanitizer.
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Now it's possible to pass -DNXT_HAVE_CLONE=0 for debugging.
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Python 3.8 has 'tp_print' field in PyTypeObject struct. This field is
attributed as deprecated. So, clang generates warning (which is turned to
error) as a result of initializing this field. From the other hand, it is
impossible to omit this field in positional initialization. The solution
is to use designated initializer.
Silencing usage message during configure python.
This is related to #331 issue on GitHub.
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When using "credential: true", the new namespace starts with a completely
empty uid and gid ranges. Then, any setuid/setgid/setgroups calls using ids
not properly mapped with uidmap and gidmap fields return EINVAL, meaning
the id is not valid inside the new namespace.
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This is related to #330 issue on GitHub.
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There was a typo: nxt_queue_head() used instead of nxt_queue_first() in
connection iteration loop. This prevents idle connection close on quit.
This closes #334 issue on GitHub.
Thanks to 洪志道 (Hong Zhi Dao).
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Thanks to tonyafanasyev.
This is related to #331 issue on GitHub.
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This patch closes #328 in github.
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Also the error page markup is now valid according to HTML5 specification.
All optional tags were omitted.
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Header names and values are stored 0-terminated for ease of use in different
languages, so magic number 2 should be added to each name-value pair size.
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This field was intended for MIME type lookup by file extension when serving
static files, but this use case is too narrow; only a fraction of requests
targets static content, and the URI presumably isn't rewritten. Moreover,
current implementation uses the entire filename for MIME type lookup if the
file has no extension.
Instead of extracting filenames and extensions when parsing requests, it's
easier to obtain them right before serving static content; this behavior is
already implemented. Thus, we can drop excessive logic from parser.
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Earlier, the paths were normalized only if there was a "/" at the end, which
is wrong according to section 5.2.4 of RFC 3986 and hypothetically may allow
to the directory above the document root.
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Before this fix EWOULDBLOCK error was fatal for SSL write operation.
This closes #325 issue on GitHub.
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When Unit starts, the main process waits for module discovery message for a
while. If a QUIT signal arrives at this time, the router and controller
processes created by main and Unit stay running. Also, the main process
doesn't stop them after the second QUIT signal is received in this case.
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The leak has been introduced in 325b315e48c4.
This closes #322 issue in GitHub.
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The <sched.h> is already included by nxt_unix.h.
This closes #314 PR on GitHub.
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Found by Coverity (CID 349485).
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Found by Coverity (CID 349484).
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It's now similar to how attempts to access other non-regular files are handled.
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Fixes segfaults with PHP 7.4.
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Found by Coverity (CID 349483).
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