* reset_signals, vim_handle_signal:
signal handling was rewritten, not defined anywhere
* related to x clipboard handling, not defined anywhere:
* {setup,start,stop,clear}_xterm_clip
* stop_xterm_trace
* clip_xterm_{own_selection,lose_selection,request_selection,set_selection}
* related to XSMP (x session management protocol):
* xsmp_{handle_requests,init,close}
This removes all signal handling code from os_unix.c to os/signal.c. Now signal
handling is done like this:
- Watchers for signals are registered with libuv default event loop
- `event_poll` continuously calls `poll_uv_loop` to produce events until it
receives user input, SIGINT or a timeout
- Any signals received in `poll_uv_loop` will push events to a queue that is
drained and processed by `event_poll`
Signals aren't handled directly in the libuv callback to avoid recursion in the
event loop(which isn't supported by libuv).
The same principle will apply to other events in the future: Push to a queue
from a libuv callback and drain it from `event_poll`
The SHELL_* defines are the bitflags that can be passed to `mch_call_shell`.
The enum is defined in 'os/shell.h', where all shell-related functions will
eventually be defined.
The functions `mch_inchar`, `mch_breakcheck`, `mch_char_avail` were
reimplemented on top of libuv. Here's how it works:
- When Neovim needs to wait for characters, it will transfer control to libuv
event loop.
- When the libuv event loop gets user input, it will transfer control back to
Neovim
- Neovim uses the `input_read` function to get the actual data read by libuv.
With this scheme its possible to keep Neovim single-threaded while enjoying the
benefits provided by libuv.
This commit leaves SIGWINCH broken for now
Code under HAVE_STACK_LIMIT is not used.
The definition was commented out in rev 180 of the original
Mercurial repo, and then completely removed in rev 2520,
but the code guarded by it was left in.
This is a squash of all commits sent to #81.
- Remove unused undef of __ARGS.
- Fix mch_rename declaration.
- Follow changes related to moved & extracted files.
- Properly indent function declarations of getchar.h and quickfix.c.
See #137 for the issue.
Every header in the proto directory was:
* Given include guards in the form
#ifndef NEOVIM_FILENAME_H
#define NEOVIM_FILENAME_H
...
#endif /* NEOVIM_FILENAM_H */
* Renamed from *.pro -> *.h
* Moved from src/proto/ to src/
This would have caused conficts with some existing headers in src/;
rather than merge these conflicts now (which is a whole other can of
worms involving multiple and conditional inclusion), any header in src/
with a conflicting name was renamed from *.h -> *_defs.h (which may or
may not actually describe its purpose, the change is purely a
namespacing issue).
Once all of these changes were made a script was developed to determine
what #includes needed to be added to each source file to describe its
dependencies and allow it to compile; because the script is so short
and I'll just list it here:
#! /bin/bash
cd $(dirname $0)
# Scrapes `make` output for provided error messages and outputs #includes
# needed to resolve them.
# $1 : part of the clang error message between filename and identifier
list_missing_includes() {
for file_missing_pair in $(CC=clang make 2>&1 >/dev/null | sed -n "s/\/\(.*\.[hc]\).*$1.*'\(.*\)'.*/\1:\2/p"); do
fields=(${file_missing_pair//:/ })
source_file=${fields[0]}
missing_func=${fields[1]}
# Try to find the declaration of the missing function.
echo $(basename $source_file) \
\#include \"$(grep -r "\b$missing_func __ARGS" | sed -n "s/.*\/\(.*\)\:.*/\1/p")\"
# Remove duplicates
done | sort | uniq
}
echo "Finding missing function prototypes..."
list_missing_includes "implicit declaration of function"
echo "Finding missing identifier declarations..."
list_missing_includes "use of undeclared identifier"
Each list of required headers was added by hand in the following format:
#include "vim.h"
#include "*_defs.h"
#include "filename.h"
/* All other includes in same module here, in alphabetical order. */
/* All includes from other modules (e.g. "os/*.h") here in alphabetical
* order. */
cproto (http://invisible-island.net/cproto/) was used to do the bulk of
the work in batch; even the most recent version had some issues with
typedef'd parameters; a quick "patch" was to modify `lex.l` to
explicitly include all vim typedefs as known types. One example from
`vim.h` is
typedef unsigned char char_u;
which was added in `lex.l` as
<INITIAL>char_u { save_text_offset(); return T_CHAR; }
Even with these changes there were some problems:
* Two files (`mbyte.c` and `os_unix.c`) were not cleanly converted.
* Any function with the `UNUSED` macro in its parameter list was not converted.
Rather than spend more time fixing the automated approach, the two files
`mbyte.c` and `os_unix.c` were converted by hand.
The `UNUSED` macros were compiler specific, and the alternative, generic
version would require a different syntax, so in order to simplify the
conversion all uses of `UNUSED` were stripped, and then the sources were
run back through cproto. It is planned to reconsider each use of
`UNUSED` manually using a new macro definition.
- Cleanup source tree, leaving only files necessary for compilation/testing
- Process files through unifdef to remove tons of FEAT_* macros
- Process files through uncrustify to normalize source code formatting.
- Port the build system to cmake
