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HPCC-33142 Distinguish between id and sequency number in SysInfoLogger
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Use id or msgid for unique SysInfoLogger message identifier
Use SeqNum for the sequence number used to the generated ensure id/msgid is unique

Signed-off-by: Shamser Ahmed <shamser.ahmed@lexisnexis.com>
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@shamser
shamser committed Dec 23, 2024
1 parent 803672b commit 968121e
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Showing 2 changed files with 39 additions and 26 deletions.
61 changes: 35 additions & 26 deletions dali/base/sysinfologger.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -23,42 +23,49 @@
#define SYS_INFO_VERSION "1.0"

#define SYS_INFO_ROOT "/SysLogs"
#define ATTR_NEXTID "@nextId"
#define ATTR_NEXTSEQN "@nextSeqNum"
#define ATTR_VERSION "@version"
#define MSG_NODE "msg"
#define ATTR_ID "@id"
#define ATTR_SEQNUM "@seqNum"
#define ATTR_TIMESTAMP "@ts"
#define ATTR_AUDIENCE "@audience"
#define ATTR_CLASS "@class"
#define ATTR_CODE "@code"
#define ATTR_HIDDEN "@hidden"
#define ATTR_SOURCE "@source"

static constexpr unsigned __int64 nonSysInfoLogMsgMask = 0x80000000;

static void extractDate(timestamp_type ts, unsigned & year, unsigned & month, unsigned & day)
{
CDateTime timeStamp;
timeStamp.setTimeStamp(ts);
timeStamp.getDate(year, month, day);
}

static unsigned __int64 makeMessageId(unsigned year, unsigned month, unsigned day, unsigned id)
unsigned __int64 makeMessageId(unsigned year, unsigned month, unsigned day, unsigned seqN, bool nonSysInfoLogMsg)
{
return id<<21 | year<<9 | month<<5 | day;
// bits 0-4 = day, bits 5-8 = month, bits 9-22 = year
// bit 23-30 unused
// bit 31 = (flag) unset means SysInfoLogger managed message, set means message managed elsewhere
// bits 32-63 = sequence number
return seqN<<32 | (nonSysInfoLogMsg?nonSysInfoLogMsgMask:0) | year<<9 | month<<5 | day;
}

static unsigned __int64 makeMessageId(unsigned __int64 ts, unsigned id)
unsigned __int64 makeMessageId(unsigned __int64 ts, unsigned seqN, bool nonSysInfoLogMsg)
{
unsigned year, month, day;
extractDate(ts, year, month, day);
return makeMessageId(year, month, day, id);
return makeMessageId(year, month, day, seqN, nonSysInfoLogMsg);
}

static void decodeMessageId(unsigned __int64 msgId, unsigned & year, unsigned & month, unsigned & day, unsigned & id)
static bool decodeMessageId(unsigned __int64 msgId, unsigned & year, unsigned & month, unsigned & day, unsigned & seqn)
{
day = msgId & 0x1F;
month = (msgId>>5) & 0x0F;
year = (msgId>>9) & 0xFFF;
id = (msgId>>21);
year = (msgId>>9) & 0x3FFF;
seqn = msgId>>32;
return msgId & nonSysInfoLogMsgMask;
}

class CSysInfoLoggerMsg : implements ISysInfoLoggerMsg
Expand All @@ -77,10 +84,10 @@ class CSysInfoLoggerMsg : implements ISysInfoLoggerMsg
{
msgPtree.setown(createPTree(MSG_NODE));
}
CSysInfoLoggerMsg(unsigned id, const LogMsgCategory & cat, LogMsgCode code, const char * source, const char * msg, timestamp_type ts, bool hidden)
CSysInfoLoggerMsg(unsigned seqn, const LogMsgCategory & cat, LogMsgCode code, const char * source, const char * msg, timestamp_type ts, bool hidden)
{
msgPtree.setown(createPTree(MSG_NODE));
msgPtree->setPropInt64(ATTR_ID, id);
msgPtree->setPropInt64(ATTR_SEQNUM, seqn);
msgPtree->setPropBool(ATTR_HIDDEN, hidden);
msgPtree->setPropInt64(ATTR_TIMESTAMP, ts);
msgPtree->setPropInt(ATTR_CODE, code);
Expand Down Expand Up @@ -130,7 +137,7 @@ class CSysInfoLoggerMsg : implements ISysInfoLoggerMsg
}
virtual unsigned __int64 queryLogMsgId() const override
{
return makeMessageId(queryTimeStamp(), msgPtree->getPropInt64(ATTR_ID, 0));
return makeMessageId(queryTimeStamp(), msgPtree->getPropInt64(ATTR_SEQNUM, 0));
}
virtual const char * queryMsg() const override
{
Expand All @@ -146,8 +153,8 @@ class CSysInfoLoggerMsg : implements ISysInfoLoggerMsg
{
unsigned year, month, day;
extractDate(queryTimeStamp(), year, month, day);
unsigned __int64 id = msgPtree->getPropInt64(ATTR_ID, 0);
xpath.appendf("m%04u%02u/d%02u/" MSG_NODE "[" ATTR_ID "='%" I64F "u']", year, month, day, id);
unsigned __int64 seqn = msgPtree->getPropInt64(ATTR_SEQNUM, 0);
xpath.appendf("m%04u%02u/d%02u/" MSG_NODE "[" ATTR_SEQNUM "='%" I64F "u']", year, month, day, seqn);
return xpath;
}
IPropertyTree * getTree()
Expand Down Expand Up @@ -220,14 +227,16 @@ class CSysInfoLoggerMsgFilter : public CSimpleInterfaceOf<ISysInfoLoggerMsgFilte
}
virtual void setMatchMsgId(unsigned __int64 msgId) override
{
unsigned year, month, day, id;
decodeMessageId(msgId, year, month, day, id);
if (year==0 || month==0 || day==0 || id==0)
throw makeStringExceptionV(-1,"ISysInfoLoggerMsgFilter::setMatchMsgId invalid argument: %" I64F "u", msgId);
unsigned year, month, day, seqn;
bool nonSysInfoLogMsg = decodeMessageId(msgId, year, month, day, seqn);
if (nonSysInfoLogMsg)
throw makeStringExceptionV(-1, "Message id: %" I64F "u cannot be processed by SysInfoLogger", msgId);
if (year==0 || month==0 || day==0 || seqn==0)
throw makeStringExceptionV(-1,"ISysInfoLoggerMsgFilter::setMatchMsgId invalid message id: %" I64F "u", msgId);
matchEndYear = matchStartYear = year;
matchEndMonth = matchStartMonth = month;
matchEndDay = matchStartDay = day;
matchId = id;
matchId = seqn;
haveDateRange = false;
}
virtual void setDateRange(unsigned startYear, unsigned startMonth, unsigned startDay, unsigned endYear, unsigned endMonth, unsigned endDay) override
Expand Down Expand Up @@ -394,7 +403,7 @@ class CSysInfoLoggerMsgFilter : public CSimpleInterfaceOf<ISysInfoLoggerMsgFilte
if (matchClass!=MSGCLS_all)
xpath.appendf("[" ATTR_CLASS "='%s']", LogMsgClassToFixString(matchClass));
if (matchId)
xpath.appendf("[" ATTR_ID "='%u']", matchId);
xpath.appendf("[" ATTR_SEQNUM "='%u']", matchId);
if (matchTimeStamp)
xpath.appendf("[" ATTR_TIMESTAMP "='%" I64F "u']", matchTimeStamp);
return xpath;
Expand Down Expand Up @@ -501,10 +510,10 @@ unsigned __int64 logSysInfoError(const LogMsgCategory & cat, LogMsgCode code, co
throw makeStringExceptionV(-1, "logSysInfoLogger: unable to create connection to '%s'", SYS_INFO_ROOT);

IPropertyTree * root = conn->queryRoot();
unsigned id = root->getPropInt(ATTR_NEXTID, 1);
if (id==UINT_MAX) // wrap id to reuse id numbers (shouldn't wrap but no harm in doing this for safety)
id=1;
root->setPropInt(ATTR_NEXTID, id+1);
unsigned seqn = root->getPropInt(ATTR_NEXTSEQN, 1);
if (seqn==UINT_MAX) // wrap id to reuse id numbers (shouldn't wrap but no harm in doing this for safety)
seqn=1;
root->setPropInt(ATTR_NEXTSEQN, seqn+1);

StringBuffer xpath;
unsigned year, month, day;
Expand All @@ -515,10 +524,10 @@ unsigned __int64 logSysInfoError(const LogMsgCategory & cat, LogMsgCode code, co
throw makeStringExceptionV(-1, "logSysInfoLogger: unable to create connection to '%s'", xpath.str());
IPropertyTree * msgPT = connMsgRoot->queryRoot();

CSysInfoLoggerMsg sysInfoMsg(id, cat, code, source, msg, ts, false);
CSysInfoLoggerMsg sysInfoMsg(seqn, cat, code, source, msg, ts, false);
msgPT->setPropTree(nullptr, sysInfoMsg.getTree());
msgPT->setProp(".", msg); // previous setPropTree doesn't set the node value
return makeMessageId(ts, id);
return makeMessageId(ts, seqn);
}

unsigned updateMessage(IConstSysInfoLoggerMsgFilter * msgFilter, std::function<void (CSysInfoLoggerMsg &)> updateOp)
Expand Down
4 changes: 4 additions & 0 deletions dali/base/sysinfologger.hpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -89,4 +89,8 @@ SYSINFO_API unsigned deleteLogSysInfoMsg(IConstSysInfoLoggerMsgFilter * msgFilte
SYSINFO_API bool deleteLogSysInfoMsg(unsigned __int64 msgId, const char *source=nullptr);
SYSINFO_API unsigned deleteOlderThanLogSysInfoMsg(bool visibleOnly, bool hiddenOnly, unsigned year, unsigned month, unsigned day, const char *source=nullptr);

/* makeMessageId - Create a message id from date, sequence number and nonSysInfoLogMsg flag to uniquely identify a message
- nonSysInfoLogMsg flag is used to identify whether or not the message is managed by SysInfoLogger */
SYSINFO_API unsigned __int64 makeMessageId(unsigned __int64 ts, unsigned seqN, bool nonSysInfoLogMsg=false);
SYSINFO_API unsigned __int64 makeMessageId(unsigned year, unsigned month, unsigned day, unsigned seqN, bool nonSysInfoLogMsg=false);
#endif

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