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author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-11-23 21:20:56 +0000 |
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committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-11-23 21:20:56 +0000 |
commit | 0f1073ca088f01a40e5c8c3f030760177d82a278 (patch) | |
tree | 732c1bbea1d729379b572b529fc464727ad02c88 /vm_core.h | |
parent | febaecee921e7acc19b0cd726d3d72281c35f9b0 (diff) | |
download | ruby-0f1073ca088f01a40e5c8c3f030760177d82a278.tar.gz |
fiddle: release GVL for ffi_call
Some external functions I wish to call may take a long time
and unnecessarily block other threads. This may lead to performance
regressions for fast functions as releasing/acquiring the GVL is not
cheap, but can improve performance for long-running functions
in multi-threaded applications.
This also means we must reacquire the GVL when calling Ruby-defined
callbacks for Fiddle::Closure, meaning we must detect whether the
current thread has the GVL by exporting ruby_thread_has_gvl_p
in internal.h
* ext/fiddle/function.c (struct nogvl_ffi_call_args):
new struct for GVL release
(nogvl_ffi_call): new function
(function_call): adjust for GVL release
[ruby-core:71642] [Feature #11607]
* ext/fiddle/closure.c (struct callback_args):
new struct for GVL acquire
(with_gvl_callback): adjusted original callback function
(callback): wrapper for conditional GVL acquire
* ext/fiddle/depend: add dependencies
* ext/fiddle/extconf.rb: include top_srcdir for internal.h
* internal.h (ruby_thread_has_gvl_p): expose for fiddle
* vm_core.h (ruby_thread_has_gvl_p): moved to internal.h
* test/fiddle/test_function.rb (test_nogvl_poll): new test
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52723 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm_core.h')
-rw-r--r-- | vm_core.h | 1 |
1 files changed, 0 insertions, 1 deletions
@@ -1036,7 +1036,6 @@ rb_vm_living_threads_remove(rb_vm_t *vm, rb_thread_t *th) vm->living_thread_num--; } -int ruby_thread_has_gvl_p(void); typedef int rb_backtrace_iter_func(void *, VALUE, int, VALUE); rb_control_frame_t *rb_vm_get_ruby_level_next_cfp(const rb_thread_t *th, const rb_control_frame_t *cfp); rb_control_frame_t *rb_vm_get_binding_creatable_next_cfp(const rb_thread_t *th, const rb_control_frame_t *cfp); |