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According to MSVC manual (*1), cl.exe can skip including a header file when that: - contains #pragma once, or - starts with #ifndef, or - starts with #if ! defined. GCC has a similar trick (*2), but it acts more stricter (e. g. there must be _no tokens_ outside of #ifndef...#endif). Sun C lacked #pragma once for a looong time. Oracle Developer Studio 12.5 finally implemented it, but we cannot assume such recent version. This changeset modifies header files so that each of them include strictly one #ifndef...#endif. I believe this is the most portable way to trigger compiler optimizations. [Bug #16770] *1: https://docs.microsoft.com/en-us/cpp/preprocessor/once *2: https://gcc.gnu.org/onlinedocs/cppinternals/Guard-Macros.html
75 lines
3.3 KiB
C++
75 lines
3.3 KiB
C++
#ifndef RUBY3_EVENT_H /*-*-C++-*-vi:se ft=cpp:*/
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#define RUBY3_EVENT_H
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/**
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* @file
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @warning Symbols prefixed with either `RUBY3` or `ruby3` are
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* implementation details. Don't take them as canon. They could
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* rapidly appear then vanish. The name (path) of this header file
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* is also an implementation detail. Do not expect it to persist
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* at the place it is now. Developers are free to move it anywhere
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* anytime at will.
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* @note To ruby-core: remember that this header can be possibly
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* recursively included from extension libraries written in C++.
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* Do not expect for instance `__VA_ARGS__` is always available.
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* We assume C99 for ruby itself but we don't assume languages of
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* extension libraries. They could be written in C++98.
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* @brief Debugging and tracing APIs.
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*/
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#include "ruby/3/dllexport.h"
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#include "ruby/3/value.h"
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RUBY3_SYMBOL_EXPORT_BEGIN()
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/* traditional set_trace_func events */
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#define RUBY_EVENT_NONE 0x0000
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#define RUBY_EVENT_LINE 0x0001
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#define RUBY_EVENT_CLASS 0x0002
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#define RUBY_EVENT_END 0x0004
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#define RUBY_EVENT_CALL 0x0008
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#define RUBY_EVENT_RETURN 0x0010
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#define RUBY_EVENT_C_CALL 0x0020
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#define RUBY_EVENT_C_RETURN 0x0040
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#define RUBY_EVENT_RAISE 0x0080
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#define RUBY_EVENT_ALL 0x00ff
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/* for TracePoint extended events */
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#define RUBY_EVENT_B_CALL 0x0100
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#define RUBY_EVENT_B_RETURN 0x0200
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#define RUBY_EVENT_THREAD_BEGIN 0x0400
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#define RUBY_EVENT_THREAD_END 0x0800
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#define RUBY_EVENT_FIBER_SWITCH 0x1000
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#define RUBY_EVENT_SCRIPT_COMPILED 0x2000
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#define RUBY_EVENT_TRACEPOINT_ALL 0xffff
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/* special events */
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#define RUBY_EVENT_RESERVED_FOR_INTERNAL_USE 0x030000
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/* internal events */
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#define RUBY_INTERNAL_EVENT_SWITCH 0x040000
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#define RUBY_EVENT_SWITCH 0x040000 /* obsolete name. this macro is for compatibility */
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/* 0x080000 */
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#define RUBY_INTERNAL_EVENT_NEWOBJ 0x100000
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#define RUBY_INTERNAL_EVENT_FREEOBJ 0x200000
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#define RUBY_INTERNAL_EVENT_GC_START 0x400000
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#define RUBY_INTERNAL_EVENT_GC_END_MARK 0x800000
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#define RUBY_INTERNAL_EVENT_GC_END_SWEEP 0x1000000
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#define RUBY_INTERNAL_EVENT_GC_ENTER 0x2000000
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#define RUBY_INTERNAL_EVENT_GC_EXIT 0x4000000
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#define RUBY_INTERNAL_EVENT_OBJSPACE_MASK 0x7f00000
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#define RUBY_INTERNAL_EVENT_MASK 0xffff0000
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typedef uint32_t rb_event_flag_t;
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typedef void (*rb_event_hook_func_t)(rb_event_flag_t evflag, VALUE data, VALUE self, ID mid, VALUE klass);
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#define RB_EVENT_HOOKS_HAVE_CALLBACK_DATA 1
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void rb_add_event_hook(rb_event_hook_func_t func, rb_event_flag_t events, VALUE data);
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int rb_remove_event_hook(rb_event_hook_func_t func);
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RUBY3_SYMBOL_EXPORT_END()
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#endif /* RUBY3_EVENT_H */
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