If an EOF is returned from `fgets`, `vim_fgets` might spin forever, as
it tries to consume the current line.
A `NULL` return value from `fgets` should break out of the function
(unless `errno` is `EINTR`), and then `feof` should be used to check for
the EOF condition on the stream.
The calls to `fgets` in `src/nvim/if_cscope.c` (and elsewhere) can show
communication errors to the user if a signal is delivered during its
system calls. For plugins that proxy subprocess output into cscope
requests, a `SIGCHLD` might *always* interfere with calls into `fgets`.
To see this in a debugger, put a breakpoint on `cs_reading_emsg` and
watch signals come in (with lldb, using `process handle --notify true
--pass true`). Next, run a subcommand from neovim that calls through
cscope when it returns. A tag picker plugin, like vim-picker and fzy,
with `cscopetag` and `cscopetagorder=0` set, reproduced this reliably.
The breakpoint will hit after a `SIGCHLD` is delivered, and `errno` will
be set to 4, `EINTR`.
The caller of `fgets` should retry when `NULL` is returned with `errno`
set to `EINTR`.
Problem: Crash when 'fileformat' is forced to "dos" and the first line in
the file is empty and does not have a CR character.
Solution: Don't check for CR before the start of the buffer.
2aa5f696b9
Problem: When 'fileformats' is changed in a BufReadPre auto command, it
does not take effect in readfile(). (Gary Johnson)
Solution: Check the value of 'fileformats' after executing auto commands.
(Christian Brabandt)
7a2699e868
f04507d132
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Aug 20 15:05:39 2016 +0200
patch 7.4.2229
Problem: Startup test fails on Solaris.
Solution: Recognize a character device. (Danek Duvall)
f71d7b9ee5
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Aug 9 22:14:05 2016 +0200
patch 7.4.2189
Problem: Cannot detect encoding in a fifo.
Solution: Extend the stdin way of detecting encoding to fifo. Add a test
for detecting encoding on stdin and fifo. (Ken Takata)
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.
Adds os_strerror() result to a number of places. Also since I could not track
where err\* variables are NULL and where they are not, using macros to make sure
that all three variables are set at once.
Removes #ifdef UNIX around the use of os_fsync, makes it use os_close in place
of close in some places.
Problem: Crash and endless loop when closing windows in a SessionLoadPost
autocommand.
Solution: Check for valid tabpage. (partly neovim/neovim#6308)
8c752bd6c4Closes#6308
Problem: More buf_valid() calls can be optimized.
Solution: Use bufref_valid() instead.
NOTE: Some changes related to channels and the Python and Netbeans interfaces
were obviously left out.
7c0a2f367f
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
Problem: Get warning for deleting autocommand group when the autocommand
using the group is scheduled for deletion. (Pavol Juhas)
Solution: Check for deleted autocommand.
5c80908ced
Problem: Deleting an augroup that still has autocmds does not give a
warning. The next defined augroup takes its place.
Solution: Give a warning and prevent the index being used for another group
name.
f2c4c39119
