Problem: Swap file warning for a file in a non-existing directory, if there
is another with the same file name. (Juergen Weigert)
Solution: When expanding the file name fails compare the file names.
8c3169c58e
After this change we never release blocks from memory (in practice it
never happened because the memory limits are never reached). Let the OS
take care of that.
---
On today's systems the 'maxmem' and 'maxmemtot' values are huge (4+ GB)
so the limits are never reached in practice, but Vim wastes a lot of
time checking if the limit was reached.
If the limit is reached Vim starts saving pieces of the swap file that were in
memory to the disk. Said in a different way: Vim implements its own
memory-paging mechanism. This is unnecessary and inefficient since the
operating system already has virtual memory and will swap to the disk if
programs start using too much memory.
This change does...
1. Reduce the number of config options and need for documentation.
2. Make the code more efficient as we don't have to keep track of memory
usage nor check if the memory limits were reached to start swapping
to disk every time we need memory for buffers.
3. Simplify the code. Once memfile.c is simple enough it could be
replaced by actual operating system memory mapping (mmap,
MemoryViewOfFile...). This change does not prevent Vim to recover
changes from swap files since the swapping code is never triggered
with the huge limits set by default.
Vim has the 'swapsync' option which we removed in 62d137ce09.
Instead let 'fsync' control swapfile-fsync.
These cases ALWAYS force fsync (ignoring 'fsync' option):
- Idle (CursorHold).
- Exit caused by deadly signal.
- SIGPWR signal.
- Explicit :preserve command.
Problem: The OptionSet autocommand event is not triggered when entering
diff mode.
Solution: use set_option_value() instead of setting the option directly.
Change the tests from old to new style. (Christian Brabandt)
04f62f881c
Problem: Cannot make Vim fail on an internal error.
Solution: Add IEMSG() and IEMSG2(). (Domenique Pelle) Avoid reporting an
internal error without mentioning where.
95f096030e
Signed-off-by: Michael Schupikov <michael@schupikov.de>
Problem: On MS-Windows large files (> 2Gbyte) cause problems.
Solution: Use "off_T" instead of "off_t". Use "stat_T" instead of "struct
stat". Use 64 bit system functions if available. (Ken Takata)
8767f52fbf
Only the off_T changes are relevant, since all the "struct stat" usage
is abstracted by libuv.
Abuse NOTDONE to give some nuance to the return value of readfile(), so
that open_buffer() can distinguish between "failed, lol" and "failed
because the path is a directory".
Before this change, Vim *already* creates a new buffer when a directory
is edited. So there is no reason it should not raise BufEnter, that was
an implementation detail of ye olde readfile().
Most of the changes in this commit merely preserve the old semantics.
The "implicit" change that we actually are interested in, is this line
in `open_buffer()`, where `retval` being non-FAIL allows EVENT_BUFENTER
to be applied:
apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval);
References https://github.com/vim/vim/issues/1353
- Eliminate/isolate static/global variables
- Remove special-case parameter from buflist_new()
- Remove special-case ECMD_RESERVED_BUFNR
- To determine when u_undo_and_forget() should be done, check
b_changedtick instead of a heuristic.
- use mb_string2cells() instead of strlen() to measure the :sub patterns
- call ml_close() before buf_clear_file(). Avoids leaks caught by ASan.
Original patch by:
Robin Elrharbi-Fleury (Robinhola)
Audrey Rayé (Adrey06)
Philémon Hullot (DesbyP)
Aymeric Collange (aym7)
Clément Guyomard (Clement0)
move `call_shell` to misc1.c
Move some fns to state.c
Move some fns to option.c
Move some fns to memline.c
Move `vim_chdir*` fns to file_search.c
Move some fns to new module, bytes.c
Move some fns to fileio.c
- Create `mf_free_fnames()` that frees and nullifies `mf_[f]fname`
- Create `mf_set_fnames()` to set the `mf_fname` and the `mf_ffname`
altoghether
- Have `mf_do_open` return a bool to indicate success so that calles
don't have to check `memfile_T::mf_fd` (file descriptor)
- Inline `mf_write_block`
This header is required by POSIX for the constants (O_RDONLY, etc.)
but we were only including it on Unix systems as a side effect of
including <unistd.h>.
Regarding the individual items in the header:
`Vim - Vi improved by Bram Moolenar`
Bram Moolenar is already mentioned throughout the documentation, as
well as the intro screen.
`:help uganda`
It's already shown to all users who don't use `shortmess+=I` upon
starting nvim, and is already placed prominently in help.txt, i.e.,
`:help` run with no arguments.
`:help credits`
Already mentioned near the top of help.txt.
`README.md`
Already mentioned in develop.txt.
