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Commit290978f

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Remove broken tracing code (which would be dangerous if it did work...)
libpq++.h contained copies of the class declarations in the other libpq++include files, which was bogus enough, but the declarations were notcompletely in step with the real declarations. Remove these in favorof including the headers with #include. Make PgConnection destructorvirtual (not absolutely necessary, but seems like a real good ideaconsidering the number of subclasses derived from it). Give all classesdeclared private copy constructors and assignment operators, to preventcompiler from thinking it can copy these objects safely.
1 parent51c9294 commit290978f

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9 files changed

+95
-252
lines changed

9 files changed

+95
-252
lines changed

‎src/interfaces/libpq++/Makefile.in

Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
# Copyright (c) 1994, Regents of the University of California
77
#
88
# IDENTIFICATION
9-
# $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/Makefile.in,v 1.23 2000/03/31 05:00:36 tgl Exp $
9+
# $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/Makefile.in,v 1.24 2000/04/22 22:39:15 tgl Exp $
1010
#
1111
#-------------------------------------------------------------------------
1212

@@ -27,8 +27,6 @@ CXXFLAGS+= -I$(SRCDIR)/backend \
2727
-I$(SRCHEADERDIR)\
2828
-I$(LIBPQDIR)
2929

30-
#CXXFLAGS+= -DDEBUGFILE
31-
3230
ifdefKRBVERS
3331
CXXFLAGS+=$(KRBFLAGS)
3432
endif

‎src/interfaces/libpq++/libpq++.h

Lines changed: 10 additions & 185 deletions
Original file line numberDiff line numberDiff line change
@@ -8,201 +8,26 @@
88
* used for building front-end applications
99
*
1010
* NOTES
11-
* Currently under construction.
11+
* This is intended to be included by client applications.
12+
* It will not work as an inclusion in the libpq++ sources, since
13+
* in the build environment the individual include files are not
14+
* yet installed in a subdirectory.
1215
*
1316
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
1417
* Portions Copyright (c) 1994, Regents of the University of California
1518
*
16-
* $Id: libpq++.h,v 1.8 2000/04/14 01:00:16 tgl Exp $
19+
* $Id: libpq++.h,v 1.9 2000/04/22 22:39:15 tgl Exp $
1720
*
1821
*-------------------------------------------------------------------------
1922
*/
2023

2124
#ifndefLIBPQXX_H
2225
#defineLIBPQXX_H
2326

24-
extern"C" {
25-
#include"config.h"
26-
}
27-
28-
/* We assume that the C++ compiler will have these keywords, even though
29-
* config.h may have #define'd them to empty because C compiler doesn't.
30-
*/
31-
#undef const
32-
#undef inline
33-
#undef signed
34-
#undef volatile
35-
36-
#ifdef HAVE_CXX_STRING_HEADER
37-
#include<string>
38-
#endif
39-
40-
extern"C" {
41-
#include"postgres.h"
42-
#include"libpq-fe.h"
43-
}
44-
45-
#ifdef HAVE_NAMESPACE_STD
46-
usingnamespacestd;
47-
#endif
48-
49-
50-
// ****************************************************************
51-
//
52-
// PgConnection - a connection made to a postgres backend
53-
//
54-
// ****************************************************************
55-
classPgConnection {
56-
protected:
57-
PGconn* pgConn;// Connection Structures
58-
PGresult* pgResult;// Query Result
59-
int pgCloseConnection;// Flag indicating whether the connection should be closed
60-
ConnStatusTypeConnect(constchar* conninfo);
61-
stringIntToString(int);
62-
PgConnection();
63-
64-
public:
65-
PgConnection(constchar* conninfo);// use reasonable and environment defaults
66-
~PgConnection();// close connection and clean up
67-
68-
ConnStatusTypeStatus();
69-
intConnectionBad();
70-
constchar*ErrorMessage();
71-
72-
// returns the database name of the connection
73-
constchar*DBName();
74-
75-
ExecStatusTypeExec(constchar* query);// send a query to the backend
76-
intExecCommandOk(constchar* query);// send a command and check if it's
77-
intExecTuplesOk(constchar* query);// send a command and check if tuple
78-
PGnotify*Notifies();
79-
};
80-
81-
// ****************************************************************
82-
//
83-
// PgDatabase - a class for accessing databases
84-
//
85-
// ****************************************************************
86-
classPgDatabase :publicPgConnection {
87-
protected:
88-
PgDatabase() : PgConnection() {}// Do not connect
89-
90-
public:
91-
// connect to the database with conninfo
92-
PgDatabase(constchar *conninfo) : PgConnection(conninfo) {};
93-
~PgDatabase() {};// close connection and clean up
94-
// query result access
95-
intTuples();
96-
intCmdTuples();
97-
intFields();
98-
constchar*FieldName(int field_num);
99-
intFieldNum(constchar *field_name);
100-
OidFieldType(int field_num);
101-
OidFieldType(constchar *field_name);
102-
shortFieldSize(int field_num);
103-
shortFieldSize(constchar *field_name);
104-
constchar*GetValue(int tup_num,int field_num);
105-
constchar*GetValue(int tup_num,constchar *field_name);
106-
intGetIsNull(int tup_num,int field_num);
107-
intGetIsNull(int tup_num,constchar* field_name);
108-
intGetLength(int tup_num,int field_num);
109-
intGetLength(int tup_num,constchar* field_name);
110-
voidDisplayTuples(FILE *out =0,int fillAlign =1,
111-
constchar* fieldSep ="|",int printHeader =1,int quiet =0) ;
112-
voidPrintTuples(FILE *out =0,int printAttName =1,
113-
int terseOutput =0,int width =0) ;
114-
115-
// copy command related access
116-
intGetLine(char* string,int length);
117-
voidPutLine(constchar* string);
118-
constchar *OidStatus();
119-
intEndCopy();
120-
};
121-
122-
123-
124-
// ****************************************************************
125-
//
126-
// PGLargeObject - a class for accessing Large Object in a database
127-
//
128-
// ****************************************************************
129-
classPgLargeObject :publicPgConnection {
130-
private:
131-
int pgFd;
132-
Oid pgObject;
133-
string loStatus;
134-
135-
public:
136-
PgLargeObject(constchar* conninfo =0);// use reasonable defaults and create large object
137-
PgLargeObject(Oid lobjId,constchar* conninfo =0);// use reasonable defaults and open large object
138-
~PgLargeObject();// close connection and clean up
139-
140-
voidCreate();
141-
voidOpen();
142-
voidClose();
143-
intRead(char* buf,int len);
144-
intWrite(constchar* buf,int len);
145-
intLSeek(int offset,int whence);
146-
intTell();
147-
intUnlink();
148-
OidLOid();
149-
OidImport(constchar* filename);
150-
intExport(constchar* filename);
151-
stringStatus();
152-
};
153-
154-
155-
// ****************************************************************
156-
//
157-
// PgTransaction - a class for running transactions against databases
158-
//
159-
// ****************************************************************
160-
classPgTransaction :publicPgDatabase {
161-
protected:
162-
ExecStatusTypeBeginTransaction();
163-
ExecStatusTypeEndTransaction();
164-
PgTransaction() : PgDatabase() {}// Do not connect
165-
166-
public:
167-
PgTransaction(constchar* conninfo);// use reasonable & environment defaults
168-
// connect to the database with given environment and database name
169-
PgTransaction(const PgConnection&);
170-
virtual~PgTransaction();// close connection and clean up
171-
172-
};
173-
174-
175-
// ****************************************************************
176-
//
177-
// PgCursor - a class for querying databases using a cursor
178-
//
179-
// ****************************************************************
180-
classPgCursor :publicPgTransaction {
181-
protected:
182-
intFetch(const string& num,const string& dir);
183-
string pgCursor;
184-
PgCursor() : PgTransaction() {}// Do not connect
185-
186-
public:
187-
PgCursor(constchar* dbName,constchar* cursor);// use reasonable & environment defaults
188-
// connect to the database with given environment and database name
189-
PgCursor(const PgConnection&,constchar* cursor);
190-
virtual~PgCursor();// close connection and clean up
191-
192-
// Commands associated with cursor interface
193-
intDeclare(const string& query,int binary =0);// Declare a cursor with given name
194-
intFetch(constchar* dir ="FORWARD");// Fetch ALL tuples in given direction
195-
intFetch(unsigned num,constchar* dir ="FORWARD");// Fetch specified amount of tuples
196-
intClose();// Close the cursor
197-
198-
// Accessors to the cursor name
199-
constchar*Cursor();
200-
voidCursor(const string& cursor);
201-
};
202-
203-
204-
205-
// buffer size
206-
#defineBUFSIZE1024
27+
#include"libpq++/pgconnection.h"
28+
#include"libpq++/pgdatabase.h"
29+
#include"libpq++/pglobject.h"
30+
#include"libpq++/pgtransdb.h"
31+
#include"libpq++/pgcursordb.h"
20732

20833
#endif/* LIBPQXX_H */

‎src/interfaces/libpq++/pgconnection.cc

Lines changed: 7 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
11
/*-------------------------------------------------------------------------
22
*
33
* FILE
4-
*pgconnection.cpp
4+
*pgconnection.cc
55
*
66
* DESCRIPTION
77
* implementation of the PgConnection class.
@@ -10,16 +10,13 @@
1010
* Copyright (c) 1994, Regents of the University of California
1111
*
1212
* IDENTIFICATION
13-
* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgconnection.cc,v 1.8 2000/03/30 05:30:42 tgl Exp $
13+
* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgconnection.cc,v 1.9 2000/04/22 22:39:15 tgl Exp $
1414
*
1515
*-------------------------------------------------------------------------
1616
*/
1717

1818
#include"pgconnection.h"
1919

20-
extern"C" {
21-
#include"fe-auth.h"
22-
}
2320

2421
// ****************************************************************
2522
//
@@ -46,12 +43,7 @@ PgConnection::PgConnection(const char* conninfo)
4643
// destructor - closes down the connection and cleanup
4744
PgConnection::~PgConnection()
4845
{
49-
// Terminate the debugging output if it was turned on
50-
#if defined(DEBUGFILE)
51-
PQuntrace(pgConn);
52-
#endif
53-
54-
// Close the conneciton only if needed
46+
// Close the connection only if needed
5547
// This feature will most probably be used by the derived classes that
5648
// need not close the connection after they are destructed.
5749
if ( pgCloseConnection ) {
@@ -64,22 +56,14 @@ PgConnection::~PgConnection()
6456
// establish a connection to a backend
6557
ConnStatusTypePgConnection::Connect(constchar* conninfo)
6658
{
67-
ConnStatusType cst;
68-
// Turn the trace on
69-
#if defined(DEBUGFILE)
70-
FILE *debug =fopen("/tmp/trace.out","w");
71-
PQtrace(pgConn, debug);
72-
#endif
73-
7459
// Connect to the database
7560
pgConn =PQconnectdb(conninfo);
61+
62+
// Now we have a connection we must close (even if it's bad!)
63+
pgCloseConnection =1;
7664

7765
// Status will return either CONNECTION_OK or CONNECTION_BAD
78-
cst =Status();
79-
if(CONNECTION_OK == cst) pgCloseConnection = (ConnStatusType)1;
80-
else pgCloseConnection = (ConnStatusType)0;
81-
82-
return cst;
66+
returnStatus();
8367
}
8468

8569
// PgConnection::status -- return connection or result status

‎src/interfaces/libpq++/pgconnection.h

Lines changed: 15 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -13,13 +13,13 @@
1313
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
1414
* Portions Copyright (c) 1994, Regents of the University of California
1515
*
16-
* $Id: pgconnection.h,v 1.6 2000/04/14 01:00:16 tgl Exp $
16+
* $Id: pgconnection.h,v 1.7 2000/04/22 22:39:15 tgl Exp $
1717
*
1818
*-------------------------------------------------------------------------
1919
*/
2020

21-
#ifndefPGCONN_H
22-
#definePGCONN_H
21+
#ifndefPGCONNECTION_H
22+
#definePGCONNECTION_H
2323

2424
extern"C" {
2525
#include"config.h"
@@ -57,13 +57,13 @@ using namespace std;
5757
// derived from this class to obtain the connection interface.
5858
classPgConnection {
5959
protected:
60-
PGconn* pgConn;// ConnectionStructures
61-
PGresult* pgResult;// Query Result
62-
int pgCloseConnection;//Flag indicating whether theconnection should be closedor not
60+
PGconn* pgConn;// ConnectionStructure
61+
PGresult* pgResult;// Current Query Result
62+
int pgCloseConnection;//TRUE ifconnection should be closedby destructor
6363

6464
public:
6565
PgConnection(constchar* conninfo);// use reasonable & environment defaults
66-
~PgConnection();// close connection and clean up
66+
virtual~PgConnection();// close connection and clean up
6767

6868
// Connection status and error messages
6969
ConnStatusTypeStatus();
@@ -82,9 +82,14 @@ class PgConnection {
8282
protected:
8383
ConnStatusTypeConnect(constchar* conninfo);
8484
stringIntToString(int);
85-
86-
protected:
85+
// Default constructor is only available to subclasses
8786
PgConnection();
87+
88+
private:
89+
// We don't support copying of PgConnection objects,
90+
// so make copy constructor and assignment op private.
91+
PgConnection(const PgConnection&);
92+
PgConnection&operator= (const PgConnection&);
8893
};
8994

90-
#endif//PGCONN_H
95+
#endif//PGCONNECTION_H

‎src/interfaces/libpq++/pgcursordb.h

Lines changed: 12 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -14,16 +14,17 @@
1414
* Portions Copyright (c) 1994, Regents of the University of California
1515
*
1616
*
17-
* $Id: pgcursordb.h,v 1.4 2000/01/26 05:58:48 momjian Exp $
17+
* $Id: pgcursordb.h,v 1.5 2000/04/22 22:39:15 tgl Exp $
1818
*
1919
*-------------------------------------------------------------------------
2020
*/
2121

22-
#ifndefPGCURSOR_H
23-
#definePGCURSOR_H
22+
#ifndefPGCURSORDB_H
23+
#definePGCURSORDB_H
2424

25+
#ifndef PGTRANSDB_H
2526
#include"pgtransdb.h"
26-
27+
#endif
2728

2829

2930
// ****************************************************************
@@ -60,6 +61,12 @@ class PgCursor : public PgTransaction {
6061

6162
protected:
6263
PgCursor() : PgTransaction() {}// Do not connect
64+
65+
private:
66+
// We don't support copying of PgCursor objects,
67+
// so make copy constructor and assignment op private.
68+
PgCursor(const PgCursor&);
69+
PgCursor&operator= (const PgCursor&);
6370
};// End PgCursor Class Declaration
6471

65-
#endif//PGCURSOR_H
72+
#endif//PGCURSORDB_H

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