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50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
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/*
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** VM event handling.
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** Copyright (C) 2005-2009 Mike Pall. See Copyright Notice in luajit.h
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*/
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#ifndef _LJ_VMEVENT_H
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#define _LJ_VMEVENT_H
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#include "lj_obj.h"
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/* Registry key for VM event handler table. */
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#define LJ_VMEVENTS_REGKEY "_VMEVENTS"
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#define LJ_VMEVENTS_HSIZE 4
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#define VMEVENT_MASK(ev) ((uint8_t)1 << ((int)(ev) & 7))
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#define VMEVENT_HASH(ev) ((int)(ev) & ~7)
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#define VMEVENT_HASHIDX(h) ((int)(h) << 3)
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#define VMEVENT_NOCACHE 255
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#define VMEVENT_DEF(name, hash) \
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LJ_VMEVENT_##name##_, \
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LJ_VMEVENT_##name = ((LJ_VMEVENT_##name##_) & 7)|((hash) << 3)
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/* VM event IDs. */
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typedef enum {
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VMEVENT_DEF(BC, 0x0000140b),
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VMEVENT_DEF(TRACE, 0x10ea574d),
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VMEVENT_DEF(RECORD, 0x5698231c),
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VMEVENT_DEF(TEXIT, 0x12d984a7),
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LJ_VMEVENT__MAX
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} VMEvent;
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#ifdef LUAJIT_DISABLE_VMEVENT
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#define lj_vmevent_send(L, ev, args) UNUSED(L)
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#else
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#define lj_vmevent_send(L, ev, args) \
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if (G(L)->vmevmask & VMEVENT_MASK(LJ_VMEVENT_##ev)) { \
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ptrdiff_t argbase = lj_vmevent_prepare(L, LJ_VMEVENT_##ev); \
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if (argbase) { \
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args \
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lj_vmevent_call(L, argbase); \
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} \
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}
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LJ_FUNC ptrdiff_t lj_vmevent_prepare(lua_State *L, VMEvent ev);
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LJ_FUNC void lj_vmevent_call(lua_State *L, ptrdiff_t argbase);
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#endif
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#endif
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