本文整理汇总了C++中pq_getmsgint函数的典型用法代码示例。如果您正苦于以下问题：C++ pq_getmsgint函数的具体用法？C++ pq_getmsgint怎么用？C++ pq_getmsgint使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了pq_getmsgint函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: tintervalrecv
/*
* tintervalrecv - converts external binary format to tinterval
*/
Datum
tintervalrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
TimeInterval tinterval;
int32 status;
tinterval = (TimeInterval) palloc(sizeof(TimeIntervalData));
tinterval->status = pq_getmsgint(buf, sizeof(tinterval->status));
tinterval->data[0] = pq_getmsgint(buf, sizeof(tinterval->data[0]));
tinterval->data[1] = pq_getmsgint(buf, sizeof(tinterval->data[1]));
if (tinterval->data[0] == INVALID_ABSTIME ||
tinterval->data[1] == INVALID_ABSTIME)
status = T_INTERVAL_INVAL; /* undefined */
else
status = T_INTERVAL_VALID;
if (status != tinterval->status)
ereport(ERROR,
(errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
errmsg("invalid status in external \"tinterval\" value")));
PG_RETURN_TIMEINTERVAL(tinterval);
}示例2: hstore_recv
Datum
hstore_recv(PG_FUNCTION_ARGS)
{
int32 buflen;
HStore *out;
Pairs *pairs;
int32 i;
int32 pcount;
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
pcount = pq_getmsgint(buf, 4);
if (pcount == 0)
{
out = hstorePairs(NULL, 0, 0);
PG_RETURN_POINTER(out);
}
if (pcount < 0 || pcount > MaxAllocSize / sizeof(Pairs))
ereport(ERROR,
(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
errmsg("number of pairs (%d) exceeds the maximum allowed (%d)",
pcount, (int) (MaxAllocSize / sizeof(Pairs)))));
pairs = palloc(pcount * sizeof(Pairs));
for (i = 0; i < pcount; ++i)
{
int rawlen = pq_getmsgint(buf, 4);
int len;
if (rawlen < 0)
ereport(ERROR,
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
errmsg("null value not allowed for hstore key")));
pairs[i].key = pq_getmsgtext(buf, rawlen, &len);
pairs[i].keylen = hstoreCheckKeyLen(len);
pairs[i].needfree = true;
rawlen = pq_getmsgint(buf, 4);
if (rawlen < 0)
{
pairs[i].val = NULL;
pairs[i].vallen = 0;
pairs[i].isnull = true;
}
else
{
pairs[i].val = pq_getmsgtext(buf, rawlen, &len);
pairs[i].vallen = hstoreCheckValLen(len);
pairs[i].isnull = false;
}
}
pcount = hstoreUniquePairs(pairs, pcount, &buflen);
out = hstorePairs(pairs, pcount, buflen);
PG_RETURN_POINTER(out);
}示例3: xidrecv
/*
* xidrecv - converts external binary format to xid
*/
Datum
xidrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_TRANSACTIONID((TransactionId) pq_getmsgint(buf, sizeof(TransactionId)));
}示例4: int2recv
/*
* int2recv - converts external binary format to int2
*/
datum_t int2recv(PG_FUNC_ARGS)
{
struct string* buf;
buf = (struct string*) ARG_POINTER(0);
RET_INT16((int16) pq_getmsgint(buf, sizeof(int16)));
}示例5: cash_recv
/*
* cash_recv - converts external binary format to cash
*/
Datum
cash_recv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_CASH((Cash) pq_getmsgint(buf, sizeof(Cash)));
}示例6: oidrecv
/*
* oidrecv - converts external binary format to oid
*/
Datum
oidrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_OID((Oid) pq_getmsgint(buf, sizeof(Oid)));
}示例7: cidrecv
/*
* cidrecv - converts external binary format to cid
*/
Datum
cidrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_COMMANDID((CommandId) pq_getmsgint(buf, sizeof(CommandId)));
}示例8: int2recv
/*
* int2recv - converts external binary format to int2
*/
Datum
int2recv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_INT16((int16) pq_getmsgint(buf, sizeof(int16)));
}示例9: reltimerecv
/*
* reltimerecv - converts external binary format to reltime
*/
Datum
reltimerecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_RELATIVETIME((RelativeTime) pq_getmsgint(buf, sizeof(RelativeTime)));
}示例10: abstimerecv
/*
* abstimerecv - converts external binary format to abstime
*/
Datum
abstimerecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
PG_RETURN_ABSOLUTETIME((AbsoluteTime) pq_getmsgint(buf, sizeof(AbsoluteTime)));
}示例11: logicalrep_read_tuple
/*
* Read tuple in remote format from stream.
*
* The returned tuple points into the input stringinfo.
*/
static void
logicalrep_read_tuple(StringInfo in, LogicalRepTupleData *tuple)
{
int i;
int natts;
/* Get number of attributes */
natts = pq_getmsgint(in, 2);
memset(tuple->changed, 0, sizeof(tuple->changed));
/* Read the data */
for (i = 0; i < natts; i++)
{
char kind;
kind = pq_getmsgbyte(in);
switch (kind)
{
case 'n': /* null */
tuple->values[i] = NULL;
tuple->changed[i] = true;
break;
case 'u': /* unchanged column */
/* we don't receive the value of an unchanged column */
tuple->values[i] = NULL;
break;
case 't': /* text formatted value */
{
int len;
tuple->changed[i] = true;
len = pq_getmsgint(in, 4); /* read length */
/* and data */
tuple->values[i] = palloc(len + 1);
pq_copymsgbytes(in, tuple->values[i], len);
tuple->values[i][len] = '\0';
}
break;
default:
elog(ERROR, "unrecognized data representation type '%c'", kind);
}
}
}示例12: tidrecv
/*
* tidrecv - converts external binary format to tid
*/
Datum
tidrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
ItemPointer result;
BlockNumber blockNumber;
OffsetNumber offsetNumber;
blockNumber = pq_getmsgint(buf, sizeof(blockNumber));
offsetNumber = pq_getmsgint(buf, sizeof(offsetNumber));
result = (ItemPointer) palloc(sizeof(ItemPointerData));
ItemPointerSet(result, blockNumber, offsetNumber);
PG_RETURN_ITEMPOINTER(result);
}示例13: logicalrep_read_typ
/*
* Read type info from the output stream.
*/
void
logicalrep_read_typ(StringInfo in, LogicalRepTyp *ltyp)
{
ltyp->remoteid = pq_getmsgint(in, 4);
/* Read type name from stream */
ltyp->nspname = pstrdup(logicalrep_read_namespace(in));
ltyp->typname = pstrdup(pq_getmsgstring(in));
}示例14: gpxloglocrecv
/*
* gpxloglocrecv - converts external binary format to xlog location
*/
Datum
gpxloglocrecv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
XLogRecPtr *result;
uint32 result_xlogid;
uint32 result_xrecoff;
result_xlogid = pq_getmsgint(buf, sizeof(result_xlogid));
result_xrecoff = pq_getmsgint(buf, sizeof(result_xrecoff));
result = (XLogRecPtr*) palloc(sizeof(XLogRecPtr));
result->xlogid = result_xlogid;
result->xrecoff = result_xrecoff;
PG_RETURN_XLOGLOC(result);
}示例15: logicalrep_read_tuple
/*
* Read tuple in remote format from stream.
*
* The returned tuple points into the input stringinfo.
*/
static void
logicalrep_read_tuple(StringInfo in, LogicalRepTupleData *tuple)
{
int i;
int natts;
/* Get of attributes. */
natts = pq_getmsgint(in, 2);
memset(tuple->changed, 0, sizeof(tuple->changed));
/* Read the data */
for (i = 0; i < natts; i++)
{
char kind;
int len;
kind = pq_getmsgbyte(in);
switch (kind)
{
case 'n': /* null */
tuple->values[i] = NULL;
tuple->changed[i] = true;
break;
case 'u': /* unchanged column */
tuple->values[i] = (char *) 0xdeadbeef; /* make bad usage more obvious */
break;
case 't': /* text formatted value */
{
tuple->changed[i] = true;
len = pq_getmsgint(in, 4); /* read length */
/* and data */
tuple->values[i] = (char *) pq_getmsgbytes(in, len);
}
break;
default:
elog(ERROR, "unknown data representation type '%c'", kind);
}
}
}