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3d5e2ca85f
This was achieved by partially undoing changelist 24817, including an accidental corruption of eventgen.pl. Copied from Perforce Change: 24877 ServerID: perforce.ravenbrook.com
116 lines
3 KiB
C
116 lines
3 KiB
C
/* impl.h.event -- Event Logging Interface
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*
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* Copyright (c) 2001 Ravenbrook Limited.
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* $Id$
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* $HopeName: MMsrc!event.h(trunk.15) $
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*
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* READERSHIP
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*
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* .readership: MPS developers.
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*
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* DESIGN
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*
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* .design: design.mps.telemetry.
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*/
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#ifndef event_h
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#define event_h
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#include "eventcom.h"
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#include "mpm.h"
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extern Res EventSync(void);
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extern Res EventInit(void);
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extern void EventFinish(void);
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extern Word EventControl(Word, Word);
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extern Word EventInternString(const char *);
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extern Word EventInternGenString(size_t, const char *);
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extern void EventLabelAddr(Addr, Word);
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#ifdef EVENT
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extern Res EventFlush(void);
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/* Event Kinds --- see design.mps.telemetry
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*
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* All events are classified as being of one event type.
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* They are small enough to be able to be used as shifts within a word.
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*/
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#define EventKindArena ((EventKind)0) /* Per space or arena */
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#define EventKindPool ((EventKind)1) /* Per pool */
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#define EventKindTrace ((EventKind)2) /* Per trace or scan */
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#define EventKindSeg ((EventKind)3) /* Per seg */
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#define EventKindRef ((EventKind)4) /* Per ref or fix */
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#define EventKindObject ((EventKind)5) /* Per alloc or object */
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#define EventKindUser ((EventKind)6) /* User-invoked */
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#define EventKindNumber ((Count)7) /* Number of event kinds */
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/* Event type definitions
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*
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* Define various constants for each event type to describe them.
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*/
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/* Note that enum values can be up to fifteen bits long portably. */
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#define RELATION(type, code, always, kind, format) \
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enum { \
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Event##type##High = ((code >> 8) & 0xFF), \
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Event##type##Low = (code & 0xFF), \
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Event##type##Always = always, \
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Event##type##Kind = EventKind##kind, \
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Event##type##Format = EventFormat##format \
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};
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#include "eventdef.h"
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#undef RELATION
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/* Event writing support */
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extern EventUnion EventMould;
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extern char *EventNext, *EventLimit;
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extern Word EventKindControl;
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#define EVENT_BEGIN(type) \
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BEGIN \
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if(BS_IS_MEMBER(EventKindControl, ((Index)Event##type##Kind))) { \
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size_t _length;
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#define EVENT_END(type, format, length) \
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AVER(EventFormat##format == Event##type##Format); \
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/* @@@@ As an interim measure, send the old event codes */ \
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EventMould.any.code = Event##type; \
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EventMould.any.clock = mps_clock(); \
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AVER(EventNext <= EventLimit); \
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_length = size_tAlignUp(length, sizeof(Word)); \
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if(_length > (size_t)(EventLimit - EventNext)) \
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EventFlush(); /* @@@@ should pass length */ \
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AVER(_length <= (size_t)(EventLimit - EventNext)); \
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mps_lib_memcpy(EventNext, &EventMould, _length); \
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EventNext += _length; \
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} \
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END
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#else /* EVENT not */
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#define EventInit() NOOP
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#define EventFinish() NOOP
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#define EventControl(r, f) (UNUSED(r), UNUSED(f), (Word)0)
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#define EventInternString(s) (UNUSED(s), (Word)0)
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#define EventInternGenString(l, s) (UNUSED(l), UNUSED(s), (Word)0)
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#define EventLabelAddr(a, i) BEGIN UNUSED(a); UNUSED(i); END
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#endif /* EVENT */
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#endif /* event_h */
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