84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/* @(#)12 1.6 src/bos/kernel/io/errdd.h, syserrlg, bos411, 9428A410j 12/16/93 16:14:02 */
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/*
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* COMPONENT_NAME: SYSERRLG system error logging facility
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*
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* FUNCTIONS: common header file for the error logging device
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* driver
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*
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* ORIGINS: 27
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*
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* IBM CONFIDENTIAL -- (IBM Confidential Restricted when
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* combined with the aggregated modules for this product)
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* SOURCE MATERIALS
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* (C) COPYRIGHT International Business Machines Corp. 1988, 1993
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* All Rights Reserved
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*
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* US Government Users Restricted Rights - Use, duplication or
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* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
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*/
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#include <sys/errids.h>
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struct errc {
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int e_state; /* state variable using ST_ bits */
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int e_lockword; /* for lockl */
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int e_sleepword_dd; /* sleep on buffer non-empty */
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int e_sleepword_sync; /* sleep on buffer empty (slpsync()) */
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int e_size; /* size in bytes of the buffer */
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char *e_start; /* base of the buffer */
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char *e_end; /* end of the buffer */
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char *e_inptr; /* errsave will write here */
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char *e_outptr; /* errread will read here */
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char *e_stale_data_ptr; /* any data following this pointer is invalid */
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unsigned e_over_write_count; /* number of records overwritten during overflow */
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int e_err_count; /* number of entries in buffer */
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unsigned e_discard_count; /* number of records discarded during overflow */
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unsigned e_errid_1st_discarded; /* error id of first event discarded */
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unsigned e_errid_last_discarded; /* error id of last event discarded */
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};
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union errnv_buf {
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char buf[EREC_MAX];
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struct erec erec;
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};
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extern int dump_started;
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#define ST_RDOPEN 0x01 /* state flags for e_state */
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#define ST_SLEEP 0x02
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#define ST_STOP 0x04
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#define ST_SYNC 0x08
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#define TIMESTAMP_LEN sizeof(int) /* length of timestamp in error record */
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#define ERECLEN_LEN sizeof(int) /* length of error record length field */
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#define HEX_ERRID_STRLEN 8
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#define DEC_DISCARD_COUNT_STRLEN 10
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#define LOST_EVTS_ERRLEN sizeof(struct err_rec0) + \
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HEX_ERRID_STRLEN + \
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DEC_DISCARD_COUNT_STRLEN
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/*
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* Address vector for passing data to errput().
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* This allows errput to handle discontiguous data (i.e.), to do a gather.
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*/
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struct avec {
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void *p; /* Data's address */
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ulong len; /* and length */
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};
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struct errvec {
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int error_id; /* Error number */
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ulong nel; /* Number of elements */
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struct avec v[1]; /* Array of nel vectors */
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};
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/* Shift for bytes per word, used by xmalloc() */
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#define BPWSHIFT 2
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/* Macro to allocate n vectors */
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#define ALOC_ERRVEC(n) struct {int error_id; ulong nel; struct avec v[(n)];}
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