This seems to have been added before 2006 to fix a uclibc bug. It
doesn't seem to be the case anymore so just get rid of it.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Introduce an API for custom log handler functions. This allows libfuse
applications to send messages to syslog(3) or other logging systems.
See include/fuse_log.h for details.
Convert libfuse from fprintf(stderr, ...) to log_fuse(level, ...). Most
messages are error messages with FUSE_LOG_ERR log level. There are also
some debug messages which now use the FUSE_LOG_DEBUG log level.
Note that lib/mount_util.c is used by both libfuse and fusermount3.
Since fusermount3 does not link against libfuse, we cannot call
fuse_log() from lib/mount_util.c. This file will continue to use
fprintf(stderr, ...) until someone figures out how to split it up.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The fuse_session_loop_mt() and fuse_loop_mt() symbols are only visible
when linking against the shared object. The code in lib/, however, is
compiled *into* the shared object and should thus use the internal
names of these functions.
Surprisingly enough, the code still worked before - but only when link
time optimization was disabled.
Unfortunately, we still can't compile with LTO because it seems that
enabling LTO somehow makes the tagged symbols vanish.
Without lto, we have:
$ nm lib/libfuse3.so | grep fuse_new
0000000000011070 T fuse_new_30
0000000000010a00 t fuse_new_31
0000000000011070 T fuse_new@FUSE_3.0
0000000000010a00 T fuse_new@@FUSE_3.1
and with LTO:
$ nm lib/libfuse3.so | grep fuse_new
0000000000019a70 T fuse_new_30
0000000000019270 t fuse_new_31
See also issue #198.
This is a code simplification patch.
- It confines most of the implementation channel implementation into
fuse_loop_mt (which is its only user).
- It makes it more obvious in the code that channels are only ever used
when using -o clone_fd and multi-threaded main loop.
- It simplies the definition of both struct fuse_session and struct
fuse_chan.
- Theoretically it should result in (minuscule) performance
improvements when not using -o clone_fd.
- Overall, it removes a lot more lines of source code than it adds :-).
Move the fuse_chan_ops.send and .receive implementations to fuse_lowlevel.c. The abstraction wasn't actually useful and made the the splice implementation more difficult.
Remove fuse_chan_ops.send and fuse_chan_ops.receive.
- modified all examples to be included in doxygen
- modified the API documentation to have more details
- added the 490px_FUSE_structure.svg.png (c) wikipedia
In fuse_session_loop_mt() don't pause when exiting the worker threads.
The pause() was added in 2.2.1 to prevent segfault on pthread_cancel()
on an exited, detached thread. Now worker threads are not detached
and pthread_cancel() should work fine even after the thread exited.
Reported by Boris Protopopov
Add new ->write_buf() method to low level interface. This
allows passig a generic buffer, either containing a memory buffer
or a file descriptor. This allows implementing zero copy writes.
Add fuse_session_receive_buf() and fuse_session_process_buf()
which may be used in event loop implementations to replace
fuse_chan_recv() and fuse_session_process() respectively.
fangzhiyi18