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These checks are meant for libfuse maintainers only,
and should not be exposed to users.
Signed-off-by: CismonX <admin@cismon.net>
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Issue with previous code was that fuse_session_exit()
didn't wake up the semaphore in fuse_loop_mt.c.
Lock, semaphore and all uses of checking for "exited"
are now moved to struct fuse_session to have it
available for the signal handler.
This also removes internal fuse_session_reset() calls,
as that makes testing hard. From git history I also
don't see why it was added.
Closes: https://github.com/libfuse/libfuse/issues/997
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
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The high-level interface triggers flag conversion twice: once in the
high-level init and once in the low-level init. This caused false
"both 'want' and 'want_ext' are set" errors when using
fuse_set_feature_flag() or fuse_unset_feature_flag().
The existing check for duplicate conversion only worked when 32-bit
flags were set directly. When using the preferred flag manipulation
functions, conn->want and the lower 32 bits of conn->want_ext
would differ, triggering the error.
Fix this by synchronizing conn->want with the lower 32 bits of
conn->want_ext after conversion, ensuring consistent state for
subsequent calls.
Closes: https://github.com/libfuse/libfuse/issues/1171
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
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32-bit conn->want flags been left to be ABI compatible to 3.10,
even though the so version was changed.
The more recent way is to use fuse_set_feature_flag(),
which will use conn->want_ext.
Given that we now have two flags (want and want_ext), we need
to convert and that brought several issues
- If the application sets conn->want, that needs to be set into
the lower 32 bit of conn->want_ext. As the application might
actually unset values, it really has to be a copy and not
just 'or' - fixed now.
- convert_to_conn_want_ext() actually needs to check for
_modified_ conn->want and conn->want_ext
- convert_to_conn_want_ext() must consider being called from
high and lowlevel interfact, with different want_ext_default
and want_default values. It is only a failure, if the application
changed both, conn->want and conn->want_ext. This function
was failing in issue #1171, because high level fuse_fs_init()
was changing values and then lowlevel do_init() was incorrectly
failing on that.
This also adds a new test (test_want_conversion) and sets
values into example/{hello.c,hello_ll.c}
Also some more internal users of conn->want are converted to
fuse_{set,unset}_feature_flag().
Closes: https://github.com/libfuse/libfuse/issues/1171
Signed-off-by: Bernd Schubert <bernd@bsbernd.com>
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Added a secondary check in fuse_lib_unlink() after hide_node()
to check again under a lock if the (now hidden) file is still open.
If not then delete it.
This should synchronise fuse_lib_unlink() with fuse_lib_release(),
when nullpath_ok is set.
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The io for FUSE requests and responses can now be further customized by allowing to write custom functions for reading/writing the responses. This includes overriding the splice io.
The reason for this addition is that having a custom file descriptor is not sufficient to allow custom io. Different types of file descriptor require different mechanisms of io interaction. For example, some file descriptor communication has boundaries (SOCK_DGRAM, EOF, etc...), while other types of fd:s might be unbounded (SOCK_STREAMS, ...). For unbounded communication, you have to read the header of the FUSE request first, and then read the remaining packet data. Furthermore, the one read call does not necessarily return all the data expected, requiring further
calls in a loop.
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- Test added for all passthrough examples.
- passthrough.c uses offset==0 mode. The others don't.
- passthrough.c changed to set FUSE_FILL_DIR_PLUS to make the test pass.
- This fixes #583.
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Preserving other attributes doesn't hurt, and --preserve
is not supported under FreeBSD.
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Doesn't work on FreeBSD, and not strictly necessary.
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There is a proper meson-mode now.
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Together with the previous commit, this fixes #156.
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