diff options
Diffstat (limited to 'ext')
-rw-r--r-- | ext/objspace/gc_hook.c | 160 |
1 files changed, 80 insertions, 80 deletions
diff --git a/ext/objspace/gc_hook.c b/ext/objspace/gc_hook.c index 1613227a2a..3adee1c376 100644 --- a/ext/objspace/gc_hook.c +++ b/ext/objspace/gc_hook.c @@ -1,80 +1,80 @@ -/**********************************************************************
-
- gc_hook.c - GC hook mechanism/ObjectSpace extender for MRI.
-
- $Author: sorah $
- created at: Tue May 28 01:34:25 2013
-
- NOTE: This extension library is not expected to exist except C Ruby.
- NOTE: This feature is an example usage of internal event tracing APIs.
-
- All the files in this distribution are covered under the Ruby's
- license (see the file COPYING).
-
-**********************************************************************/
-
-#include "ruby/ruby.h"
-#include "ruby/debug.h"
-
-static void
-invoke_proc(void *data)
-{
- VALUE proc = (VALUE)data;
- rb_proc_call(proc, rb_ary_new());
-}
-
-static void
-gc_start_end_i(VALUE tpval, void *data)
-{
- rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
- if (0) fprintf(stderr, "trace: %s\n", rb_tracearg_event_flag(tparg) == RUBY_INTERNAL_EVENT_GC_START ? "gc_start" : "gc_end");
- rb_postponed_job_register(0, invoke_proc, data);
-}
-
-static VALUE
-set_gc_hook(VALUE rb_mObjSpace, VALUE proc, rb_event_flag_t event, const char *tp_str, const char *proc_str)
-{
- VALUE tpval;
- ID tp_key = rb_intern(tp_str);
- ID proc_key = rb_intern(proc_str);
-
- if (RTEST(tpval = rb_ivar_get(rb_mObjSpace, tp_key))) {
- rb_tracepoint_disable(tpval);
- rb_ivar_set(rb_mObjSpace, tp_key, Qnil);
- rb_ivar_set(rb_mObjSpace, proc_key, Qnil);
- }
-
- if (RTEST(proc)) {
- if (!rb_obj_is_proc(proc)) {
- rb_raise(rb_eTypeError, "trace_func needs to be Proc");
- }
-
- tpval = rb_tracepoint_new(0, event, gc_start_end_i, (void *)proc);
- rb_ivar_set(rb_mObjSpace, tp_key, tpval);
- rb_ivar_set(rb_mObjSpace, proc_key, proc); /* GC guard */
- rb_tracepoint_enable(tpval);
- }
-
- return proc;
-}
-
-static VALUE
-set_after_gc_start(VALUE rb_mObjSpace, VALUE proc)
-{
- return set_gc_hook(rb_mObjSpace, proc, RUBY_INTERNAL_EVENT_GC_START,
- "__set_after_gc_start_tpval__", "__set_after_gc_start_proc__");
-}
-
-static VALUE
-set_after_gc_end(VALUE rb_mObjSpace, VALUE proc)
-{
- return set_gc_hook(rb_mObjSpace, proc, RUBY_INTERNAL_EVENT_GC_END,
- "__set_after_gc_end_tpval__", "__set_after_gc_end_proc__");
-}
-
-void
-Init_gc_hook(VALUE rb_mObjSpace)
-{
- rb_define_module_function(rb_mObjSpace, "after_gc_start_hook=", set_after_gc_start, 1);
- rb_define_module_function(rb_mObjSpace, "after_gc_end_hook=", set_after_gc_end, 1);
-}
+/********************************************************************** + + gc_hook.c - GC hook mechanism/ObjectSpace extender for MRI. + + $Author: sorah $ + created at: Tue May 28 01:34:25 2013 + + NOTE: This extension library is not expected to exist except C Ruby. + NOTE: This feature is an example usage of internal event tracing APIs. + + All the files in this distribution are covered under the Ruby's + license (see the file COPYING). + +**********************************************************************/ + +#include "ruby/ruby.h" +#include "ruby/debug.h" + +static void +invoke_proc(void *data) +{ + VALUE proc = (VALUE)data; + rb_proc_call(proc, rb_ary_new()); +} + +static void +gc_start_end_i(VALUE tpval, void *data) +{ + rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval); + if (0) fprintf(stderr, "trace: %s\n", rb_tracearg_event_flag(tparg) == RUBY_INTERNAL_EVENT_GC_START ? "gc_start" : "gc_end"); + rb_postponed_job_register(0, invoke_proc, data); +} + +static VALUE +set_gc_hook(VALUE rb_mObjSpace, VALUE proc, rb_event_flag_t event, const char *tp_str, const char *proc_str) +{ + VALUE tpval; + ID tp_key = rb_intern(tp_str); + ID proc_key = rb_intern(proc_str); + + if (RTEST(tpval = rb_ivar_get(rb_mObjSpace, tp_key))) { + rb_tracepoint_disable(tpval); + rb_ivar_set(rb_mObjSpace, tp_key, Qnil); + rb_ivar_set(rb_mObjSpace, proc_key, Qnil); + } + + if (RTEST(proc)) { + if (!rb_obj_is_proc(proc)) { + rb_raise(rb_eTypeError, "trace_func needs to be Proc"); + } + + tpval = rb_tracepoint_new(0, event, gc_start_end_i, (void *)proc); + rb_ivar_set(rb_mObjSpace, tp_key, tpval); + rb_ivar_set(rb_mObjSpace, proc_key, proc); /* GC guard */ + rb_tracepoint_enable(tpval); + } + + return proc; +} + +static VALUE +set_after_gc_start(VALUE rb_mObjSpace, VALUE proc) +{ + return set_gc_hook(rb_mObjSpace, proc, RUBY_INTERNAL_EVENT_GC_START, + "__set_after_gc_start_tpval__", "__set_after_gc_start_proc__"); +} + +static VALUE +set_after_gc_end(VALUE rb_mObjSpace, VALUE proc) +{ + return set_gc_hook(rb_mObjSpace, proc, RUBY_INTERNAL_EVENT_GC_END, + "__set_after_gc_end_tpval__", "__set_after_gc_end_proc__"); +} + +void +Init_gc_hook(VALUE rb_mObjSpace) +{ + rb_define_module_function(rb_mObjSpace, "after_gc_start_hook=", set_after_gc_start, 1); + rb_define_module_function(rb_mObjSpace, "after_gc_end_hook=", set_after_gc_end, 1); +} |