void CDSegment::DefPoints(const POINT* lpaPoints, const BYTE* lpaTypes, int nCount)
{
FreeSegment();
m_paPoints = new CPoint[nCount];
m_paTypes = new BYTE[nCount];
m_nCount = nCount;
if (m_paPoints != NULL && m_paTypes != NULL)
{
memcpy(m_paPoints, lpaPoints, m_nCount * sizeof(CPoint));
memcpy(m_paTypes, lpaTypes, m_nCount * sizeof(BYTE));
}
}
CDSegment CDSegment::operator=(const CDSegment &Segment)
{
CPoint *pNewPoints;
BYTE * pNewTypes;
m_nCount = Segment.m_nCount;
pNewPoints = new CPoint[m_nCount];
pNewTypes = new BYTE[m_nCount];
memcpy(pNewPoints, Segment.m_paPoints, m_nCount * sizeof(CPoint));
memcpy(pNewTypes, Segment.m_paTypes, m_nCount * sizeof(BYTE));
FreeSegment(); // Get rid of old stuff
m_paPoints = pNewPoints;
m_paTypes = pNewTypes;
return *this;
}
void TrashAudio(void)
{
/* If SoundBlaster was initialized... */
if(SndRate)
{
/* Reset DSP */
WriteDSP(0xD3);
WriteDSP(0xD0);
/* Disable DMA */
outp(0x0A,SBDMA|0x04);
/* Disable IRQ */
outp(0x21,inp(0x21)|(1<<SBIRQ));
}
/* If SB interrupt vector changed, restore it */
if(IRQ5Old) { _dos_setvect(SBIRQ+8,IRQ5Old);IRQ5Old=0; }
/* If low memory was allocated for DMA, free it */
if(SBSegment) { FreeSegment(SBSegment);SBSegment=0; }
/* Sound trashed */
SndRate=0;
}
CDSegment::~CDSegment()
{
FreeSegment();
}
static void
QDMirroringUpdate(
QDMIRRORUpdateMask updateMask,
bool validFlag,
QDMIRRORState state,
QDMIRRORDisabledReason disabledReason,
struct timeval *lastLogTimeVal,
char *errorMessage)
{
#define UPDATE_VALIDFLAG_CMD "update gp_configuration set valid='%c' where dbid = CAST(%d AS SMALLINT)"
#define UPDATE_MASTER_MIRRORING_CMD "update gp_master_mirroring set (summary_state, detail_state, log_time, error_message) = ('%s', %s, '%s'::timestamptz, %s);"
int count = 0;
char cmd[200 + QDMIRRORErrorMessageSize * 2 + 3];
char detailValue[100];
char logTimeStr[128];
char *summaryStateString;
char *detailStateString;
char errorMessageQuoted[QDMIRRORErrorMessageSize * 2 + 3];
char *user;
MemoryContext mcxt = CurrentMemoryContext;
Segment *master = NULL;
volatile PQExpBuffer entryBuffer = NULL;
volatile PGconn *entryConn = NULL;
volatile PGresult *rs = NULL;
PG_TRY();
{
StartTransactionCommand();
user = getDBSuperuserName("QDMirroringUpdate");
Assert(user != NULL);
master = GetMasterSegment();
entryBuffer = createPQExpBuffer();
if (PQExpBufferBroken(entryBuffer))
{
destroyPQExpBuffer(entryBuffer);
ereport(ERROR, (errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("QDMirroringUpdate: out of memory")));
/* not reached. */
}
/*
* initialize libpq connection buffer, we only need to initialize it
* once.
*/
initPQConnectionBuffer(master, user, NULL, entryBuffer, true);
FreeSegment(master);
free(user);
/*
* Call libpq to connect
*/
entryConn = PQconnectdb(entryBuffer->data);
if (PQstatus((PGconn *)entryConn) == CONNECTION_BAD)
{
/*
* When we get an error, we strdup it here. When the main thread
* checks for errors, it makes a palloc copy of this, and frees
* this.
*/
char *error_message = strdup(PQerrorMessage((PGconn *)entryConn));
if (!error_message)
{
ereport(ERROR, (errcode(ERRCODE_OUT_OF_MEMORY),
errmsg("QDMirroringUpdate: out of memory")));
}
destroyPQExpBuffer(entryBuffer);
PQfinish((PGconn *)entryConn);
entryConn = NULL;
elog(FATAL, "QDMirroringUpdate: setting segDB state failed, error connecting to entry db, error: %s", error_message);
}
/* finally, we're ready to actually get some stuff done. */
do
{
rs = PQexec((PGconn *)entryConn, "BEGIN");
if (PQresultStatus((PGresult *)rs) != PGRES_COMMAND_OK)
break;
if ((updateMask & QDMIRROR_UPDATEMASK_VALIDFLAG) != 0)
{
count = snprintf(cmd, sizeof(cmd), UPDATE_VALIDFLAG_CMD, (validFlag ? 't' : 'f'), ftsQDMirrorInfo->dbid);
if (count >= sizeof(cmd))
{
ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR),
errmsg("QDMirroringUpdate: format command string failure")));
}
rs = PQexec((PGconn *)entryConn, cmd);
if (PQresultStatus((PGresult *)rs) != PGRES_COMMAND_OK)
{
ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR),
errmsg("QDMirroringUpdate: could not execute command '%s'", cmd)));
break;
}
}
if ((updateMask & QDMIRROR_UPDATEMASK_MASTERMIRRORING)!= 0)
{
switch (state)
{
case QDMIRROR_STATE_NONE:
summaryStateString = "None";
break;
case QDMIRROR_STATE_NOTCONFIGURED:
summaryStateString = "Not Configured";
break;
case QDMIRROR_STATE_CONNECTINGWALSENDSERVER:
case QDMIRROR_STATE_POSITIONINGTOEND:
case QDMIRROR_STATE_CATCHUPPENDING:
case QDMIRROR_STATE_CATCHINGUP:
summaryStateString = "Synchronizing";
break;
case QDMIRROR_STATE_SYNCHRONIZED:
summaryStateString = "Synchronized";
break;
case QDMIRROR_STATE_DISABLED:
summaryStateString = "Not Synchronized";
break;
default:
summaryStateString = "Unknown";
break;
}
if (state == QDMIRROR_STATE_DISABLED)
{
detailStateString =
QDMirroringDisabledReasonToString(disabledReason);
}
else
{
detailStateString = NULL;
}
if (detailStateString == NULL)
{
strcpy(detailValue, "null");
}
else
{
count = snprintf(detailValue, sizeof(detailValue), "'%s'", detailStateString);
if (count >= sizeof(detailValue))
{
ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR),
errmsg("QDMirroringUpdate: format command string failure")));
}
}
QDMirroringFormatTime(logTimeStr, sizeof(logTimeStr), lastLogTimeVal);
/*
* Escape quote the error string before putting in DML statement...
*/
if (errorMessage != NULL)
{
int errorMessageLen = strlen(errorMessage);
if (errorMessageLen == 0)
{
strcpy(errorMessageQuoted, "null");
}
else
{
size_t escapedLen;
errorMessageQuoted[0] = '\'';
escapedLen = PQescapeString(&errorMessageQuoted[1], errorMessage, errorMessageLen);
errorMessageQuoted[escapedLen + 1] = '\'';
errorMessageQuoted[escapedLen + 2] = '\0';
elog((Debug_print_qd_mirroring ? LOG : DEBUG5), "Error message quoted: \"%s\"", errorMessageQuoted);
}
}
else
{
strcpy(errorMessageQuoted, "null");
}
count = snprintf(cmd, sizeof(cmd), UPDATE_MASTER_MIRRORING_CMD,
summaryStateString, detailValue, logTimeStr, errorMessageQuoted);
if (count >= sizeof(cmd))
{
ereport(ERROR, (errcode(ERRCODE_INTERNAL_ERROR),
errmsg("QDMirroringUpdate: format command string failure")));
}
rs = PQexec((PGconn *)entryConn, cmd);
if (PQresultStatus((PGresult *)rs) != PGRES_COMMAND_OK)
{
ereport(ERROR,
(errcode(ERRCODE_INTERNAL_ERROR),
errmsg("QDMirroringUpdate: could not execute command '%s'", cmd)));
break;
}
elog((Debug_print_qd_mirroring ? LOG : DEBUG5),
"Successfully executed command \"%s\"", cmd);
rs = PQexec((PGconn *)entryConn, "COMMIT");
if (PQresultStatus((PGresult *)rs) != PGRES_COMMAND_OK)
break;
}
}
while (0);
PQclear((PGresult *)rs);
PQfinish((PGconn *)entryConn);
destroyPQExpBuffer(entryBuffer);
CommitTransactionCommand();
}
PG_CATCH();
{
PQclear((PGresult *)rs);
PQfinish((PGconn *)entryConn);
destroyPQExpBuffer(entryBuffer);
AbortCurrentTransaction();
}
PG_END_TRY();
MemoryContextSwitchTo(mcxt); /* Just incase we hit an error */
return;
}
