openat(2) also performs a path lookup, so it is also subject
to pathological slowdowns like opendir(3) and open(2) syscalls.
* dir.c (struct opendir_at_arg): new struct for callback
(with_gvl_gc_for_fd): new callback for rb_thread_call_with_gvl
(gc_for_fd_with_gvl): moved up
(nogvl_opendir_at): extracted from do_opendir
(opendir_at): new wrapper to release GVL for opendir_at
(do_opendir): use new wrappers to release GVL
(nogvl_dir_empty_p): adjust for gc_for_fd_with_gvl
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
opendir(3) is subject to the same pathological slowdowns on
slow or unreliable filesystems as open(2), so release the GVL
to avoid stalling the entire VM like we do with IO#open
* dir.c (nogvl_opendir): new function
(opendir_without_gvl): new function
(dir_initialize): s/opendir/&_without_gvl/
(do_opendir): ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Using readdir(3) without any locking causes thread-safety
problems if directory streams get shared between threads. On
ancient platforms, readdir(3) may have thread-safety problems
even on different directory streams.
Using readdir_r(3) is not viable, either, as it's deprecated
due to name overflow problems.
So for now, rely on GVL as in previous Rubies and perhaps
consider per-"struct dir_data" mutexes for modern platforms
which allow concurrent calls to readdir(3) on different
directory streams.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60774 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (readdir_without_gvl): check the VM is already initialized before
calling rb_thread_call_without_gvl().
[Bug #14108]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60772 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Release GVL around all remaining readdir calls from the Dir
class to prevent pathological stalls on slow filesystems in
multi-threaded applications.
opendir, rewinddir, closedir calls are not affected yet, but
will be changed in future commits.
In the future, further work may be done consolidate multiple GVL
releasing calls to reduce overhead, similar to how changes to
Dir.empty? were made in r60111
* dir.c (nogvl_readdir): new function
(readdir_without_gvl): ditto
(dir_read): s/READDIR/readdir_without_gvl/
(dir_each_entry): ditto
(glob_helper): ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60769 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This avoids blocking the entire VM when operating on slow or
unreliable filesystems. Instead, only the thread performing
the mkdir or rmdir operation is blocked and other threads
are free to proceed.
* dir.c (nogvl_mkdir): new function
(nogvl_rmdir): ditto
(dir_s_mkdir): release GVL
(dir_s_rmdir): ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mode_t is the correct type for these syscalls and it can be
easier-to-understand. It may also help portability to future
platforms and improve type checking.
* dir.c (dir_s_mkdir): use mode_t for mkdir(2)
* file.c (chmod_internal): use mode_t for chmod(2)
(rb_file_s_chmod): s/int/mode_t/
(lchmod_internal): ditto, deref pointer as in chmod_internal
(rb_file_s_lchmod): pass pointer as in rb_file_s_chmod
(rb_file_s_rename): use mode_t for umask(2)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
chdir(2) is subject to all the pathological slowdowns and
caveats as open(2) on slow or unreliable filesystems, so ensure
other threads can proceed while this is happening.
* dir.c (nogvl_chdir): new function
* dir.c (dir_chdir): release GVL
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This reverts commit r60341,r60342,r60344,r60345.
Breaking compabitility of the order of result breaks many tests.
To avoid such effort to fix tests, the order should be kept.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Because NaCl and PNaCl are already sunset status.
see https://bugs.chromium.org/p/chromium/issues/detail?id=239656#c160
configure.ac: Patch for this file was provided by @nobu.
[Feature #14041][ruby-core:83497][fix GH-1726]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This reverts commit r60253 because it causes on error on Linux.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60255 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This converts all slow syscalls in the Dir.empty? implementation
to release GVL. We avoid unnecessarily GVL release and
reacquire for each slow call (opendir, readdir, closedir) and
instead only release and acquire the GVL once in the common
case.
Benchmark results show a small degradation in single-threaded
performance:
Execution time (sec)
name trunk built
dir_empty_p 0.689 0.758
Speedup ratio: compare with the result of `trunk' (greater is better)
name built
dir_empty_p 0.909
* dir.c (rb_gc_for_fd_with_gvl): new function
(nogvl_dir_empty_p): ditto
(dir_s_empty_p): use new functions to release GVL
* benchmark/bm_dir_empty_p.rb: new benchmark
[ruby-core:83071] [Feature #13958]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60111 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): fix up r59527, dot files other than current
directory should not be included unless FNM_DOTMATCH is given.
[ruby-core:82266] [Bug #13785]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59529 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): fix up r59481 for old kernels, which
provide d_type member but just always set DT_UNKNOWN for any
entries. [ruby-core:82266] [Bug #13785]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): utilize d_type even if no recursive
pattern, to reduce stat/lstat syscalls in subsequent
glob_helper.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59481 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): fix globbing based on a relative path Dir.
[Feature #13056]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (dir_glob_options): relax base option. ignore when nil
or an empty string as :base option. [Feature #13056]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59476 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The lifetime of a String VALUE must match or exceed the lifetime
of its R*_PTR result; otherwise the GC can while reclaim the
VALUE while the R*_PTR result is in use.
* dir.c (ruby_brace_expand): add var parameter for GC guard
(ruby_brace_glob_with_enc): adjust call
(file_s_fnmatch): ditto
(push_glob): remove misplaced GC guard
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59416 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* win32/win32.c (rb_dir_getwd_ospath): Windows implementation
moved from dir.c. get rid of freeing malloced memory by xfree.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59061 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (rb_dir_getwd_ospath): return cwd path in the OS path
encoding.
* file.c (rb_realpath_internal): work in the OS path encoding
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59040 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): yield globbed part only without the base
directory path part if the base is given. [Feature#13056]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58901 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c: [DOC] document the new `base` keyword argument of Dir.glob
[Feature #13056]; also improve docs for Dir.glob and Dir[].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58885 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (dir_s_each_child, dir_s_children): Dir.each_child and
Dir.children which are similar to Dir.foreach and Dir.entries
respectively, except to exclude "." and "..". [Feature #11302]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58879 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): support Dir instance as `base` option.
[Feature#13056]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58860 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
enc is the name of the variable used in the example, not the name of the
keyword argument (encoding).
The documentation used to wrongly suggest that the keyword argument name was
"enc" which could cause people try try to call `Dir.open("thing", enc: "utf-8")`
Author: Olivier Lacan <hi@olivierlacan.com>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (glob_helper): raise a SystemCallError exception when
opendir() failed, except for ENOENT, ENOTDIR, and EACCES. this
behavior predates 1.0; the comments in glob.c claimed that
glob() returned -1 on error but actualy the pointer to a global
variable, then dir_glob() did check only -1 as the comments, and
ignored actual errors. [ruby-core:80226] [Bug #13276]
dir.c: ruby_glob_funcs_t
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58156 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (is_case_sensitive): use getattrlist() if fgetattrlist()
is unavailable, on OSX 10.5. [ruby-core:68829] [Bug #11054]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57248 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (rb_glob): merge rb_glob2 which is used only here.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56608 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (do_opendir): retry after GC when the limit for open file
descriptors reached.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56467 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (rb_dir_s_empty_p): use rb_gc_for_fd for the condition to
invoke GC by errno.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56466 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (to_be_ignored): make an inline function to get rid of
multiple errno function calls.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56465 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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