void LogManager::writeWriteRecord(int transID, int pageID, char* oldData, char* newData) {
int newLSN = getNextLSN();
TxnRecord* rec = txnTable.locateTxnRecord(transID);
writeLogRecord(getNextLSN(), 2, transID, rec->lastLSN, pageID, 0, oldData, newData);
rec->lastLSN = newLSN;
}
void LogManager::writeEndRecord(int transID) {
int newLSN = getNextLSN();
TxnRecord* rec = txnTable.locateTxnRecord(transID);
char empty[16] = {};
for (int i = 0; i < 16; i++) { empty[i] = 0; }
writeLogRecord(getNextLSN(), 5, transID, rec->lastLSN, 0, 0, empty, empty);
rec->lastLSN = newLSN;
rec->state = 5;
}
void LogManager::writeBeginRecord(int transID) {
txnTable.insertTxnRecord(transID);
int newLSN = getNextLSN();
TxnRecord* rec = txnTable.locateTxnRecord(transID);
char empty[16] = {};
for (int i = 0; i < 16; i++) { empty[i] = 0; }
writeLogRecord(newLSN, 1, transID, rec->lastLSN, 0, 0, empty, empty);
rec->lastLSN = newLSN;
rec->state = 1;
rec->firstLSN = newLSN;
}
void
logData (int level, LogDataFormatter *formatLogData, const void *data) {
const char *prefix = NULL;
if (level & LOG_FLG_CATEGORY) {
int category = level & LOG_MSK_CATEGORY;
if (!logCategoryFlags[category]) return;
level = categoryLogLevel;
{
const LogCategoryEntry *ctg = &logCategoryTable[category];
prefix = ctg->prefix;
}
}
{
int write = level <= systemLogLevel;
int print = level <= stderrLogLevel;
if (write || print) {
int oldErrno = errno;
char record[0X1000];
STR_BEGIN(record, sizeof(record));
if (prefix) STR_PRINTF("%s: ", prefix);
{
size_t sublength = formatLogData(STR_NEXT, STR_LEFT, data);
STR_ADJUST(sublength);
}
STR_END
if (write) {
writeLogRecord(record);
#if defined(WINDOWS)
if (windowsEventLog != INVALID_HANDLE_VALUE) {
const char *strings[] = {record};
ReportEvent(windowsEventLog, toWindowsEventType(level), 0, 0, NULL,
ARRAY_COUNT(strings), 0, strings, NULL);
}
#elif defined(__MSDOS__)
#elif defined(__ANDROID__)
__android_log_write(toAndroidLogPriority(level), PACKAGE_TARNAME, record);
#elif defined(HAVE_SYSLOG_H)
if (syslogOpened) syslog(level, "%s", record);
#endif /* write system log */
}
if (print) {
FILE *stream = stderr;
lockStream(stream);
if (logPrefixStack) {
const char *prefix = logPrefixStack->prefix;
if (*prefix) {
fputs(prefix, stream);
fputs(": ", stream);
}
}
fputs(record, stream);
fputc('\n', stream);
flushStream(stream);
unlockStream(stream);
}
errno = oldErrno;
}
}
