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fish-shell/src
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ridiculousfish 162053ed8d Make history file rewriting be more lock savvy 
We now are stingier with taking history file locks - if the lock
is held too long we may just break it. But the current file save
architecture holds the lock for the duration of the save. It also
has some not-quite-right checks that can cause spurious failures in
the history stress test.

Reimplement the history save to retry. Rather than holding the lock,
rewrite the file to a temporary location and then take the lock. If
the history file has changed, start all over.

This is going to be slower under contention, but the advantage is that
the lock is only held for a brief period (stat + rename) rather than
across calls to write().

Some updated logic also fixes spurious failures that were easy to observe
when tsan was enabled. These failures were due to failing to check if the
file at the path was the same file we opened.

The next step is to move the history file saving to a background thread
to reduce the chances of it impacting user's typing.
2017-02-06 11:04:07 -08:00
..
autoload.cpp
Remove support for the builtin_script_t feature
2017-01-29 21:34:30 -08:00
autoload.h
Remove support for the builtin_script_t feature
2017-01-29 21:34:30 -08:00
builtin_commandline.cpp
Adopt owning_lock in builtin_commandline
2017-01-29 18:15:38 -08:00
builtin_commandline.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_complete.cpp
don't warn about using obsolete complete options
2017-01-09 11:21:34 -08:00
builtin_complete.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_jobs.cpp
Switch a job's process list from a linked list to a vector of pointers
2017-01-23 09:28:34 -08:00
builtin_jobs.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_printf.cpp
switch from \1xb to \e in the code
2016-12-24 12:15:28 -08:00
builtin_printf.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_set_color.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
builtin_set_color.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_set.cpp
improve converting strings to ints/longs
2016-11-25 18:52:15 -08:00
builtin_set.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_string.cpp
Use unique_ptr in string_replace()
2017-01-21 15:47:12 -08:00
builtin_string.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_test.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
builtin_test.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin_ulimit.cpp
improve converting strings to ints/longs
2016-11-25 18:52:15 -08:00
builtin_ulimit.h
restyle builtin modules to match project style
2016-04-26 21:58:59 -07:00
builtin.cpp
Make a missing --sets-mode property for a key binding do nothing
2017-02-05 02:49:45 -08:00
builtin.h
use consistent mechanism to validate var names
2016-11-22 16:18:20 -08:00
color.cpp
Improve compatibility with 0-16 color terminals.
2016-07-24 17:02:29 -07:00
color.h
time for another make style-all
2017-01-26 20:05:46 -08:00
common.cpp
Revert "Adopt owning_lock and some cleanup of termsize storage in common.cpp"
2017-01-29 19:33:30 -08:00
common.h
Introduce owning_lock template
2017-01-29 18:15:38 -08:00
complete.cpp
Make autoload_t no longer virtual
2017-01-29 18:56:55 -08:00
complete.h
Remove --authoritative leftovers from complete
2016-12-20 17:16:08 -08:00
env_universal_common.cpp
Add #include<atomic> to env_universal_common.cpp
2017-01-30 13:41:17 -08:00
env_universal_common.h
time for another make style-all
2017-01-26 20:05:46 -08:00
env.cpp
cache prompts and escape sequences we've seen
2017-02-05 18:31:14 -08:00
env.h
time for another make style-all
2017-01-26 20:05:46 -08:00
event.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
event.h
Clean up event_t handling
2017-01-21 16:48:07 -08:00
exec.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
exec.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
expand.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
expand.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
fallback.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
fallback.h
Enable mkostemp to be weak-linked
2017-01-08 22:18:27 -08:00
fish_indent.cpp
convert narrow stderr output to wide forms
2017-01-03 16:14:42 -08:00
fish_key_reader.cpp
normalize use of stdio functions taking a stream
2017-01-13 20:48:55 -08:00
fish_tests.cpp
Make history file rewriting be more lock savvy
2017-02-06 11:04:07 -08:00
fish_version.cpp
restyle fish modules to match project style
2016-04-30 19:52:13 -07:00
fish_version.h
restyle fish modules to match project style
2016-04-30 19:52:13 -07:00
fish.cpp
remove unnecessary signal management
2017-01-14 20:51:54 -08:00
function.cpp
Make autoload_t no longer virtual
2017-01-29 18:56:55 -08:00
function.h
implement means to learn about a functions source
2017-01-20 21:48:41 -08:00
highlight.cpp
Use std::move instead of swap in a few places where it improves clarity
2017-01-26 16:14:50 -08:00
highlight.h
Change clients of file_detection_context_t to use lambdas
2017-01-26 09:40:17 -08:00
history.cpp
Make history file rewriting be more lock savvy
2017-02-06 11:04:07 -08:00
history.h
Make history file rewriting be more lock savvy
2017-02-06 11:04:07 -08:00
input_common.cpp
Make fire_event_callback take a std::function instead of function pointer
2017-01-21 17:15:45 -08:00
input_common.h
time for another make style-all
2017-01-26 20:05:46 -08:00
input.cpp
Make a missing --sets-mode property for a key binding do nothing
2017-02-05 02:49:45 -08:00
input.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
intern.cpp
Clean up and adopt owning_lock in intern.cpp
2017-01-29 21:19:39 -08:00
intern.h
restyle intern module to match project style
2016-05-01 20:28:46 -07:00
io.cpp
Make io_buffer_t::create return a shared_ptr
2017-01-22 00:44:04 -08:00
io.h
Make io_buffer_t::create return a shared_ptr
2017-01-22 00:44:04 -08:00
iothread.cpp
Adopt owning_lock in iothread.cpp
2017-01-29 21:06:46 -08:00
iothread.h
time for another make style-all
2017-01-26 20:05:46 -08:00
kill.cpp
fix random lint issues
2016-05-29 22:24:29 -07:00
kill.h
restyle kill module to match project style
2016-05-01 22:18:59 -07:00
lru.h
Add sanity checking to LRU cache
2017-01-30 12:59:01 -08:00
output.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
output.h
Stop swallowing the cartesian product
2016-07-24 17:56:34 -07:00
pager.cpp
Defeat some miscellaneous warnings in the g++ build
2017-01-26 17:33:48 -08:00
pager.h
time for another make style-all
2016-12-03 20:12:53 -08:00
parse_constants.h
convert narrow stderr output to wide forms
2017-01-03 16:14:42 -08:00
parse_execution.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
parse_execution.h
Eliminate moved_ref
2017-01-26 15:43:46 -08:00
parse_productions.cpp
convert narrow stderr output to wide forms
2017-01-03 16:14:42 -08:00
parse_productions.h
use enum_map for parser enums
2016-11-11 18:56:56 -08:00
parse_tree.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
parse_tree.h
time for another make style-all
2017-01-26 20:05:46 -08:00
parse_util.cpp
Defeat some miscellaneous warnings in the g++ build
2017-01-26 17:33:48 -08:00
parse_util.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
parser_keywords.cpp
fix some style bogosities that crept in
2016-05-27 14:44:30 -07:00
parser_keywords.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
parser.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
parser.h
time for another make style-all
2017-01-26 20:05:46 -08:00
path.cpp
Use std::move instead of swap in a few places where it improves clarity
2017-01-26 16:14:50 -08:00
path.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
postfork.cpp
Make job_get_flag and job_set_flag instance methods of jobs
2017-01-26 15:06:58 -08:00
postfork.h
workaround glibc bug that can corrupt malloc arena
2016-12-14 20:12:37 -08:00
print_help.cpp
lint: "collapsible if statements" warnings
2016-10-22 19:09:40 -07:00
print_help.h
restyle proc module to match project style
2016-05-02 22:07:58 -07:00
proc.cpp
Adopt owning_lock for job_ids
2017-01-29 18:15:38 -08:00
proc.h
Make job_get_flag and job_set_flag instance methods of jobs
2017-01-26 15:06:58 -08:00
reader.cpp
time for another make style-all
2017-01-26 20:05:46 -08:00
reader.h
correct handling of SIGHUP by interactive fish
2017-01-24 15:24:13 -08:00
sanity.cpp
improve sanity check code
2017-01-24 15:24:13 -08:00
sanity.h
improve sanity check code
2017-01-24 15:24:13 -08:00
screen.cpp
cache prompts and escape sequences we've seen
2017-02-05 18:31:14 -08:00
screen.h
cache prompts and escape sequences we've seen
2017-02-05 18:31:14 -08:00
signal.cpp
Add a SIGALRM handler that does nothing
2017-01-21 14:07:54 -08:00
signal.h
remove unnecessary signal management
2017-01-14 20:51:54 -08:00
tokenizer.cpp
Use std::move instead of swap in a few places where it improves clarity
2017-01-26 16:14:50 -08:00
tokenizer.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
utf8.cpp
lint: constant if expression
2016-10-29 19:01:19 -07:00
utf8.h
Fix wide char related tests on Cygwin
2016-05-26 20:24:03 -07:00
util.cpp
improve converting strings to ints/longs
2016-11-25 18:52:15 -08:00
util.h
restyle remaining modules to match project style
2016-05-03 16:09:45 -07:00
wcstringutil.cpp
fix some style bogosities that crept in
2016-05-27 14:44:30 -07:00
wcstringutil.h
Be a bit more consistent and proper.
2016-06-05 21:32:57 -07:00
wgetopt.cpp
lint: Use early exit/continue
2016-10-31 13:29:10 -07:00
wgetopt.h
Restyle touched .cpp files
2016-06-12 11:34:35 -07:00
wildcard.cpp
time for another make style-all
2016-12-03 20:12:53 -08:00
wildcard.h
Make IWYU output in lint.cpp less messy
2016-06-23 17:26:08 -07:00
wutil.cpp
Make file_id_for_fd return kInvalidFiledID when passed a negative fd
2017-02-06 10:01:33 -08:00
wutil.h
add unsigned long long variant to fish_wcsto*
2016-12-20 16:40:12 -08:00