static void
gc_event_i(VALUE tpval, void *data)
{
rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
rb_event_flag_t flag = rb_tracearg_event_flag(tparg);
switch (flag) {
case RUBY_INTERNAL_EVENT_GC_START:
_oobgc.allocation_limit = 0;
_oobgc.start.total_allocated_object = rb_gc_stat(sym_total_allocated_object);
_oobgc.start.heap_tomb_page_length = rb_gc_stat(sym_heap_tomb_page_length);
break;
case RUBY_INTERNAL_EVENT_GC_END_MARK:
_oobgc.sweep_needed = 1;
break;
case RUBY_INTERNAL_EVENT_GC_END_SWEEP:
_oobgc.sweep_needed = 0;
_oobgc.allocation_limit =
_oobgc.start.total_allocated_object +
rb_gc_stat(sym_heap_swept_slot) +
(rb_gc_stat(sym_heap_tomb_page_length) * _oobgc.heap_obj_limit) -
rb_gc_stat(sym_heap_final_slot);
break;
}
}
/**
* file_tracepoint_callback
* Callback function for Tracer#file_tracepoint. It gets called on
* RUBY_EVENT_CLASS, RUBY_EVENT_CALL, and RUBY_EVENT_B_CALL
* events. It check if any breakpoints matches current file the VM program counter
* is in, and turn on line event tracing for that thread. Otherwise turn off
* line tracing if in wrong file. The first time it turns on line event tracing,
* it also turns on Tracer#return_tracepoint to maintain line tracing
* consistency when file execution interleaves.
*/
static void
file_tracepoint_callback(VALUE tracepoint, void *data)
{
VALUE self = (VALUE) data;
rb_trace_arg_t *tracepoint_arg = rb_tracearg_from_tracepoint(tracepoint);
VALUE tracepoint_path = rb_tracearg_path(tracepoint_arg);
int match_found;
if (!RB_TYPE_P(tracepoint_path, T_STRING))
return;
// Ensure tracepoint_path is absolute path
tracepoint_path = rb_file_expand_path(tracepoint_path, Qnil);
if (!RTEST(tracepoint_path)) {
return;
}
match_found = match_breakpoints_files(self, tracepoint_path);
if (match_found) {
enable_line_trace_for_thread(self);
enable_return_trace_for_thread(self);
}
else {
disable_line_trace_for_thread(Qnil);
}
return;
}
static void
tracepoint_handler(VALUE tpval, void *data)
{
rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
if (rb_tracearg_event_flag(tparg) == RUBY_INTERNAL_EVENT_NEWOBJ) {
increment_allocations();
}
}
// Refer Ruby source ext/objspace/object_tracing.c::freeobj_i
static void freeobj_i(VALUE tpval, void *data) {
rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
rbkit_obj_destroyed_event *event;
VALUE obj = rb_tracearg_object(tparg);
rbkit_logger *arg = (rbkit_logger *)data;
// Delete allocation info of freed object
delete_rbkit_allocation_info(tparg, obj, arg->str_table, arg->object_table);
event = new_rbkit_obj_destroyed_event(FIX2ULONG(rb_obj_id(obj)));
pack_event((rbkit_event_header *)event, arg->msgpacker);
free(event);
send_message(arg->sbuf);
}
static void
fiber_tracepoint_callback(VALUE tracepoint, void *data)
{
VALUE self = (VALUE) data;
rb_trace_arg_t *tracepoint_arg = rb_tracearg_from_tracepoint(tracepoint);
VALUE tracepoint_lineno = rb_tracearg_lineno(tracepoint_arg);
int c_tracepoint_lineno = NUM2INT(tracepoint_lineno);
// Only if lineno is greater than 0, then we know this event is triggered from
// fiber execution, and we blindly starts line_trace.
if (c_tracepoint_lineno > 0) {
enable_line_trace_for_thread(self);
}
return;
}
// Refer Ruby source ext/objspace/object_tracing.c::newobj_i
static void newobj_i(VALUE tpval, void *data) {
rbkit_obj_created_event *event;
rbkit_logger * arg = (rbkit_logger *)data;
rb_trace_arg_t *tparg = rb_tracearg_from_tracepoint(tpval);
rbkit_allocation_info *info = new_rbkit_allocation_info(tparg, arg->str_table, arg->object_table);
VALUE obj = rb_tracearg_object(tparg);
VALUE klass = RBASIC_CLASS(obj);
const char *class_name = NULL;
if (!NIL_P(klass) && BUILTIN_TYPE(obj) != T_NONE && BUILTIN_TYPE(obj) != T_ZOMBIE && BUILTIN_TYPE(obj) != T_ICLASS)
class_name = rb_class2name(klass);
event = new_rbkit_obj_created_event(FIX2ULONG(rb_obj_id(obj)), class_name, info);
pack_event((rbkit_event_header *)event, arg->msgpacker);
free(event);
send_message(arg->sbuf);
}