probes_helper.h

   1 #ifndef RUBY_PROBES_HELPER_H
   2 #define RUBY_PROBES_HELPER_H
   3
   4 #include "ruby/ruby.h"
   5
   6 struct ruby_dtrace_method_hook_args {
   7     const char *classname;
   8     const char *methodname;
   9     const char *filename;
  10     int line_no;
  11     volatile VALUE klass;
  12     volatile VALUE name;
  13 };
  14
  15 NOINLINE(int rb_dtrace_setup(rb_execution_context_t *, VALUE, ID, struct ruby_dtrace_method_hook_args *));
  16
  17 #define RUBY_DTRACE_METHOD_HOOK(name, ec, klazz, id) \
  18 do { \
  19     if (UNLIKELY(RUBY_DTRACE_##name##_ENABLED())) { \
  20         struct ruby_dtrace_method_hook_args args; \
  21         if (rb_dtrace_setup(ec, klazz, id, &args)) { \
  22             RUBY_DTRACE_##name(args.classname, \
  23                                args.methodname, \
  24                                args.filename, \
  25                                args.line_no); \
  26         } \
  27     } \
  28 } while (0)
  29
  30 #define RUBY_DTRACE_METHOD_ENTRY_HOOK(ec, klass, id) \
  31     RUBY_DTRACE_METHOD_HOOK(METHOD_ENTRY, ec, klass, id)
  32
  33 #define RUBY_DTRACE_METHOD_RETURN_HOOK(ec, klass, id) \
  34     RUBY_DTRACE_METHOD_HOOK(METHOD_RETURN, ec, klass, id)
  35
  36 #define RUBY_DTRACE_CMETHOD_ENTRY_HOOK(ec, klass, id) \
  37     RUBY_DTRACE_METHOD_HOOK(CMETHOD_ENTRY, ec, klass, id)
  38
  39 #define RUBY_DTRACE_CMETHOD_RETURN_HOOK(ec, klass, id) \
  40     RUBY_DTRACE_METHOD_HOOK(CMETHOD_RETURN, ec, klass, id)
  41
  42 #endif /* RUBY_PROBES_HELPER_H */