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mirror of https://github.com/postgres/postgres.git synced 2025-06-17 17:02:08 +03:00

Major update part I involving delayed patches, reworked Makefile, and how

the versioning works. There's also a new utils directory used by Makefile
This commit is contained in:
Peter Mount
2000-10-12 08:55:28 +00:00
parent f20d2a87fb
commit f41dcbe4d8
16 changed files with 1405 additions and 279 deletions

View File

@ -10,7 +10,7 @@ import org.postgresql.largeobject.*;
import org.postgresql.util.*;
/**
* $Id: Connection.java,v 1.8 2000/10/09 16:48:16 momjian Exp $
* $Id: Connection.java,v 1.9 2000/10/12 08:55:24 peter Exp $
*
* This abstract class is used by org.postgresql.Driver to open either the JDBC1 or
* JDBC2 versions of the Connection class.
@ -81,6 +81,11 @@ public abstract class Connection
// The PID an cancellation key we get from the backend process
public int pid;
public int ckey;
// This receive_sbuf should be used by the different methods
// that call pg_stream.ReceiveString() in this Connection, so
// so we avoid uneccesary new allocations.
byte receive_sbuf[] = new byte[8192];
/**
* This is called by Class.forName() from within org.postgresql.Driver
@ -165,7 +170,7 @@ public abstract class Connection
// "User authentication failed"
//
throw new SQLException(pg_stream.ReceiveString
(4096, getEncoding()));
(receive_sbuf, 4096, getEncoding()));
case 'R':
// Get the type of request
@ -236,7 +241,7 @@ public abstract class Connection
case 'E':
case 'N':
throw new SQLException(pg_stream.ReceiveString
(4096, getEncoding()));
(receive_sbuf, 4096, getEncoding()));
default:
throw new PSQLException("postgresql.con.setup");
}
@ -248,7 +253,7 @@ public abstract class Connection
break;
case 'E':
case 'N':
throw new SQLException(pg_stream.ReceiveString(4096));
throw new SQLException(pg_stream.ReceiveString(receive_sbuf, 4096, getEncoding()));
default:
throw new PSQLException("postgresql.con.setup");
}
@ -322,6 +327,12 @@ public abstract class Connection
{
// added Oct 7 1998 to give us thread safety.
synchronized(pg_stream) {
// Deallocate all resources in the stream associated
// with a previous request.
// This will let the driver reuse byte arrays that has already
// been allocated instead of allocating new ones in order
// to gain performance improvements.
pg_stream.deallocate();
Field[] fields = null;
Vector tuples = new Vector();
@ -353,7 +364,7 @@ public abstract class Connection
{
pg_stream.SendChar('Q');
buf = sql.getBytes();
pg_stream.Send(buf);
pg_stream.Send(sql.getBytes());
pg_stream.SendChar(0);
pg_stream.flush();
} catch (IOException e) {
@ -370,7 +381,7 @@ public abstract class Connection
{
case 'A': // Asynchronous Notify
pid = pg_stream.ReceiveInteger(4);
msg = pg_stream.ReceiveString(8192);
msg = pg_stream.ReceiveString(receive_sbuf,8192,getEncoding());
break;
case 'B': // Binary Data Transfer
if (fields == null)
@ -381,7 +392,7 @@ public abstract class Connection
tuples.addElement(tup);
break;
case 'C': // Command Status
recv_status = pg_stream.ReceiveString(8192);
recv_status = pg_stream.ReceiveString(receive_sbuf,8192,getEncoding());
// Now handle the update count correctly.
if(recv_status.startsWith("INSERT") || recv_status.startsWith("UPDATE") || recv_status.startsWith("DELETE")) {
@ -423,7 +434,7 @@ public abstract class Connection
tuples.addElement(tup);
break;
case 'E': // Error Message
msg = pg_stream.ReceiveString(4096);
msg = pg_stream.ReceiveString(receive_sbuf,4096,getEncoding());
final_error = new SQLException(msg);
hfr = true;
break;
@ -438,10 +449,10 @@ public abstract class Connection
hfr = true;
break;
case 'N': // Error Notification
addWarning(pg_stream.ReceiveString(4096));
addWarning(pg_stream.ReceiveString(receive_sbuf,4096,getEncoding()));
break;
case 'P': // Portal Name
String pname = pg_stream.ReceiveString(8192);
String pname = pg_stream.ReceiveString(receive_sbuf,8192,getEncoding());
break;
case 'T': // MetaData Field Description
if (fields != null)
@ -474,7 +485,7 @@ public abstract class Connection
for (i = 0 ; i < nf ; ++i)
{
String typname = pg_stream.ReceiveString(8192);
String typname = pg_stream.ReceiveString(receive_sbuf,8192,getEncoding());
int typid = pg_stream.ReceiveIntegerR(4);
int typlen = pg_stream.ReceiveIntegerR(2);
int typmod = pg_stream.ReceiveIntegerR(4);