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Add pq_flush, a function to flush the output buffer

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Jan Urbański 2010-03-26 03:39:56 +01:00 committed by Federico Di Gregorio
parent 3f2c1f6489
commit 75a0299a48
2 changed files with 31 additions and 4 deletions
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30
psycopg/pqpath.c
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@ -612,7 +612,7 @@ pq_is_busy(connectionObject *conn)
PyTuple_SET_ITEM(notify, 1, PyString_FromString(pgn->relname)); PyTuple_SET_ITEM(notify, 1, PyString_FromString(pgn->relname));
PyList_Append(conn->notifies, notify); PyList_Append(conn->notifies, notify);
Py_UNBLOCK_THREADS; Py_UNBLOCK_THREADS;
free(pgn); PQfreemem(pgn);
} }
res = PQisBusy(conn->pgconn); res = PQisBusy(conn->pgconn);
@ -625,7 +625,33 @@ pq_is_busy(connectionObject *conn)
return res; return res;
} }
/* pq_execute - execute a query, possibly asyncronously
/* pq_flush - flush output and return connection status
a status of 1 means that a some data is still pending to be flushed, while a
status of 0 means that there is no data waiting to be sent. -1 means an
error and an exception will be set accordingly.
this function locks the connection object
this function call Py_*_ALLOW_THREADS macros */
int
pq_flush(connectionObject *conn)
{
int res;
Dprintf("pq_flush: flushing output");
Py_BEGIN_ALLOW_THREADS;
pthread_mutex_lock(&(conn->lock));
res = PQflush(conn->pgconn);
pthread_mutex_unlock(&(conn->lock));
Py_END_ALLOW_THREADS;
return res;
}
/* pq_execute - execute a query, possibly asynchronously
this fucntion locks the connection object this fucntion locks the connection object
this function call Py_*_ALLOW_THREADS macros */ this function call Py_*_ALLOW_THREADS macros */

1
psycopg/pqpath.h
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@ -45,6 +45,7 @@ HIDDEN int pq_abort_locked(connectionObject *conn, PGresult **pgres,
HIDDEN int pq_abort(connectionObject *conn); HIDDEN int pq_abort(connectionObject *conn);
HIDDEN int pq_reset(connectionObject *conn); HIDDEN int pq_reset(connectionObject *conn);
HIDDEN int pq_is_busy(connectionObject *conn); HIDDEN int pq_is_busy(connectionObject *conn);
HIDDEN int pq_flush(connectionObject *conn);
HIDDEN void pq_clear_async(connectionObject *conn); HIDDEN void pq_clear_async(connectionObject *conn);
HIDDEN void pq_set_critical(connectionObject *conn, const char *msg); HIDDEN void pq_set_critical(connectionObject *conn, const char *msg);