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680f0b5ba4
* RUBY_INTERNAL_EVENT_NEWOBJ: object created. * RUBY_INTERNAL_EVENT_FREE: object freeed. * RUBY_INTERNAL_EVENT_GC_START: GC started. And rename `RUBY_EVENT_SWITCH' to `RUBY_INTERNAL_EVENT_SWITCH'. Internal events can not invoke any Ruby program because the tracing timing may be critical (under huge restriction). These events can be hooked only by C-extensions. We recommend to use rb_potponed_job_register() API to call Ruby program safely. This change is mostly written by Aman Gupta (tmm1). https://bugs.ruby-lang.org/issues/8107#note-12 [Feature #8107] * include/ruby/debug.h, vm_trace.c: added two new APIs. * rb_tracearg_event_flag() returns rb_event_flag_t of this event. * rb_tracearg_object() returns created/freeed object. * ext/-test-/tracepoint/extconf.rb, ext/-test-/tracepoint/tracepoint.c, test/-ext-/tracepoint/test_tracepoint.rb: add a test. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40946 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#include "ruby/ruby.h"
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#include "ruby/debug.h"
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static size_t newobj_count;
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static size_t free_count;
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static size_t gc_start_count;
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static size_t objects_count;
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static VALUE objects[10];
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void
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tracepoint_track_objspace_events_i(VALUE tpval, void *data)
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{
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rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
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switch (rb_tracearg_event_flag(tparg)) {
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case RUBY_INTERNAL_EVENT_NEWOBJ:
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{
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VALUE obj = rb_tracearg_object(tparg);
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if (objects_count < sizeof(objects)/sizeof(VALUE)) objects[objects_count++] = obj;
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newobj_count++;
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break;
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}
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case RUBY_INTERNAL_EVENT_FREE:
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{
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free_count++;
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break;
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}
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case RUBY_INTERNAL_EVENT_GC_START:
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{
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gc_start_count++;
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break;
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}
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default:
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rb_raise(rb_eRuntimeError, "unknown event");
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}
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}
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VALUE
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tracepoint_track_objspace_events(VALUE self)
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{
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VALUE tpval = rb_tracepoint_new(0, RUBY_INTERNAL_EVENT_NEWOBJ | RUBY_INTERNAL_EVENT_FREE | RUBY_INTERNAL_EVENT_GC_START, tracepoint_track_objspace_events_i, 0);
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VALUE result = rb_ary_new();
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int i;
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newobj_count = free_count = gc_start_count = objects_count = 0;
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rb_tracepoint_enable(tpval);
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rb_yield(Qundef);
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rb_tracepoint_disable(tpval);
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rb_ary_push(result, SIZET2NUM(newobj_count));
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rb_ary_push(result, SIZET2NUM(free_count));
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rb_ary_push(result, SIZET2NUM(gc_start_count));
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for (i=0; i<objects_count; i++) {
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rb_ary_push(result, objects[i]);
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}
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return result;
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}
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void
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Init_tracepoint(void)
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{
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VALUE mBug = rb_define_module("Bug");
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rb_define_module_function(mBug, "tracepoint_track_objspace_events", tracepoint_track_objspace_events, 0);
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}
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