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4009b8a559
Abolishing event formats. Each event now has its own structure. Event parameters are now written directly into the event buffer, rather than being copied twice. Copied from Perforce Change: 179010 ServerID: perforce.ravenbrook.com
152 lines
4.9 KiB
C
152 lines
4.9 KiB
C
/* <code/event.h> -- Event Logging Interface
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*
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* Copyright (c) 2001 Ravenbrook Limited. See end of file for license.
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* $Id$
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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/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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#include "eventdef.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/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 EVENT_ENUM(X, type, code, always, kind, count, 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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};
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EVENT_LIST(EVENT_ENUM, X)
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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(name, size) \
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BEGIN \
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if(BS_IS_MEMBER(EventKindControl, ((Index)Event##name##Kind))) { \
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Event##name##Struct *_event; \
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size_t _size = size_tAlignUp(size, MPS_PF_ALIGN); \
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if (_size > (size_t)(EventLimit - EventNext)) \
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EventFlush(); \
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AVER(_size <= (size_t)(EventLimit - EventNext)); \
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_event = (void *)EventNext; \
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_event->code = Event##name; \
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_event->clock = mps_clock();
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#define EVENT_END(name, size) \
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EventNext += _size; \
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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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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2001-2002 Ravenbrook Limited <http://www.ravenbrook.com/>.
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* All rights reserved. This is an open source license. Contact
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* Ravenbrook for commercial licensing options.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Redistributions in any form must be accompanied by information on how
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* to obtain complete source code for this software and any accompanying
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* software that uses this software. The source code must either be
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* included in the distribution or be available for no more than the cost
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* of distribution plus a nominal fee, and must be freely redistributable
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* under reasonable conditions. For an executable file, complete source
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* code means the source code for all modules it contains. It does not
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* include source code for modules or files that typically accompany the
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* major components of the operating system on which the executable file
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* runs.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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