will make fixing things easier.
/*-------------------------------------------------------------------------
- *
- * testlibpq0.c--
- * small test program for libpq++,
- * small interactive loop where queries can be entered interactively
- * and sent to the backend
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/examples/Attic/testlibpq0.cc,v 1.6 2000/05/29 21:25:04 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
+*
+* testlibpq0.c--
+* small test program for libpq++,
+* small interactive loop where queries can be entered interactively
+* and sent to the backend
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/examples/Attic/testlibpq0.cc,v 1.7 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
#include
#include "libpq++.h"
int main()
{
- // Open the connection to the database and make sure it's OK
- PgDatabase data("dbname=template1");
- if ( data.ConnectionBad() ) {
- cout << "Connection was unsuccessful..." << endl
- << "Error message returned: " << data.ErrorMessage() << endl;
- return 1;
- }
- else
- cout << "Connection successful... Enter queries below:" << endl;
-
- // Interactively obtain and execute queries
- ExecStatusType status;
- string buf;
- int done = 0;
- while (!done)
- {
- cout << "> ";
- cout.flush();
- getline(cin, buf);
- if ( buf != "" )
- if ( (status = data.Exec( buf.c_str() )) == PGRES_TUPLES_OK )
- data.DisplayTuples();
- else
- cout << "No tuples returned..." << endl
- << "status = " << status << endl
- << "Error returned: " << data.ErrorMessage() << endl;
- else
- done = 1;
- }
- return 0;
+ // Open the connection to the database and make sure it's OK
+ PgDatabase data("dbname=template1");
+ if ( data.ConnectionBad() )
+ {
+ cout << "Connection was unsuccessful..." << endl
+ << "Error message returned: " << data.ErrorMessage() << endl;
+ return 1;
+ }
+ else
+ cout << "Connection successful... Enter queries below:" << endl;
+
+ // Interactively obtain and execute queries
+ ExecStatusType status;
+ string buf;
+ int done = 0;
+ while (!done)
+ {
+ cout << "> ";
+ cout.flush();
+ getline(cin, buf);
+ if ( buf != "" )
+ if ( (status = data.Exec( buf.c_str() )) == PGRES_TUPLES_OK )
+ data.DisplayTuples();
+ else
+ cout << "No tuples returned..." << endl
+ << "status = " << status << endl
+ << "Error returned: " << data.ErrorMessage() << endl;
+ else
+ done = 1;
+ }
+ return 0;
} // End main()
/*
- * testlibpq1.cc
- * Test the C++ version of LIBPQ, the POSTGRES frontend library.
- *
- * queries the template1 database for a list of database names
- *
- */
+* testlibpq1.cc
+* Test the C++ version of LIBPQ, the POSTGRES frontend library.
+*
+* queries the template1 database for a list of database names
+*
+*/
#include
#include
int main()
{
- // Begin, by establishing a connection to the backend.
- // When no parameters are given then the system will
- // try to use reasonable defaults by looking up environment variables
- // or, failing that, using hardwired constants
- const char* dbName = "dbname=template1";
- PgDatabase data(dbName);
+ // Begin, by establishing a connection to the backend.
+ // When no parameters are given then the system will
+ // try to use reasonable defaults by looking up environment variables
+ // or, failing that, using hardwired constants
+ const char* dbName = "dbname=template1";
+ PgDatabase data(dbName);
- // check to see that the backend connection was successfully made
- if ( data.ConnectionBad() ) {
- cerr << "Connection to database '" << dbName << "' failed." << endl
- << "Error returned: " << data.ErrorMessage() << endl;
- exit(1);
- }
+ // check to see that the backend connection was successfully made
+ if ( data.ConnectionBad() )
+ {
+ cerr << "Connection to database '" << dbName << "' failed." << endl
+ << "Error returned: " << data.ErrorMessage() << endl;
+ exit(1);
+ }
- // start a transaction block
- if ( !data.ExecCommandOk("BEGIN") ) {
- cerr << "BEGIN command failed" << endl;
- exit(1);
- }
+ // start a transaction block
+ if ( !data.ExecCommandOk("BEGIN") )
+ {
+ cerr << "BEGIN command failed" << endl;
+ exit(1);
+ }
- // submit command to the backend
- if ( !data.ExecCommandOk("DECLARE myportal CURSOR FOR select * from pg_database") ) {
- cerr << "DECLARE CURSOR command failed" << endl;
- exit(1);
- }
+ // submit command to the backend
+ if ( !data.ExecCommandOk("DECLARE myportal CURSOR FOR select * from pg_database") )
+ {
+ cerr << "DECLARE CURSOR command failed" << endl;
+ exit(1);
+ }
- // fetch instances from the pg_database, the system catalog of databases
- if ( !data.ExecTuplesOk("FETCH ALL in myportal") ) {
- cerr << "FETCH ALL command didn't return tuples properly" << endl;
- exit(1);
- }
-
- // first, print out the attribute names
- int nFields = data.Fields();
- for (int i=0; i < nFields; i++)
- cout << setiosflags(ios::right) << setw(15) << data.FieldName(i);
- cout << endl << endl;
+ // fetch instances from the pg_database, the system catalog of databases
+ if ( !data.ExecTuplesOk("FETCH ALL in myportal") )
+ {
+ cerr << "FETCH ALL command didn't return tuples properly" << endl;
+ exit(1);
+ }
- // next, print out the instances
- for (int i=0; i < data.Tuples(); i++) {
- for (int j=0; j < nFields; j++)
- cout << setiosflags(ios::right) << setw(15) << data.GetValue(i,j);
- cout << endl;
- }
+ // first, print out the attribute names
+ int nFields = data.Fields();
+ for (int i = 0; i < nFields; i++)
+ cout << setiosflags(ios::right) << setw(15) << data.FieldName(i);
+ cout << endl << endl;
- // Close the portal
- data.Exec("CLOSE myportal");
+ // next, print out the instances
+ for (int i = 0; i < data.Tuples(); i++)
+ {
+ for (int j = 0; j < nFields; j++)
+ cout << setiosflags(ios::right) << setw(15) << data.GetValue(i, j);
+ cout << endl;
+ }
- // End the transaction
- data.Exec("END");
- return 0;
+ // Close the portal
+ data.Exec("CLOSE myportal");
+
+ // End the transaction
+ data.Exec("END");
+ return 0;
}
-
+
/*
- * testlibpq2.cc
- * Test the C++ version of LIBPQ, the POSTGRES frontend library.
- *
- * queries the template1 database for a list of database names using transaction block
- *
- */
+* testlibpq2.cc
+* Test the C++ version of LIBPQ, the POSTGRES frontend library.
+*
+* queries the template1 database for a list of database names using transaction block
+*
+*/
#include
#include
int main()
{
- // Begin, by establishing a connection to the backend.
- // When no parameters are given then the system will
- // try to use reasonable defaults by looking up environment variables
- // or, failing that, using hardwired constants
- const char* dbName = "dbname=template1";
- PgTransaction data(dbName);
-
- // check to see that the backend connection was successfully made
- if ( data.ConnectionBad() ) {
- cerr << "Connection to database '" << dbName << "' failed." << endl
- << "Error returned: " << data.ErrorMessage() << endl;
- exit(1);
- }
-
- // submit command to the backend
- if ( !data.ExecCommandOk("DECLARE myportal CURSOR FOR select * from pg_database") ) {
- cerr << "DECLARE CURSOR command failed" << endl;
- exit(1);
- }
-
- // fetch instances from the pg_database, the system catalog of databases
- if ( !data.ExecTuplesOk("FETCH ALL in myportal") ) {
- cerr << "FETCH ALL command didn't return tuples properly" << endl;
- exit(1);
- }
-
- // first, print out the attribute names
- int nFields = data.Fields();
- for (int i=0; i < nFields; i++)
- cout << setiosflags(ios::right) << setw(15) << data.FieldName(i);
- cout << endl << endl;
-
- // next, print out the instances
- for (int i=0; i < data.Tuples(); i++) {
- for (int j=0; j < nFields; j++)
- cout << setiosflags(ios::right) << setw(15) << data.GetValue(i,j);
- cout << endl;
- }
-
- // close the portal
- data.Exec("CLOSE myportal");
- return 0;
+ // Begin, by establishing a connection to the backend.
+ // When no parameters are given then the system will
+ // try to use reasonable defaults by looking up environment variables
+ // or, failing that, using hardwired constants
+ const char* dbName = "dbname=template1";
+ PgTransaction data(dbName);
+
+ // check to see that the backend connection was successfully made
+ if ( data.ConnectionBad() )
+ {
+ cerr << "Connection to database '" << dbName << "' failed." << endl
+ << "Error returned: " << data.ErrorMessage() << endl;
+ exit(1);
+ }
+
+ // submit command to the backend
+ if ( !data.ExecCommandOk("DECLARE myportal CURSOR FOR select * from pg_database") )
+ {
+ cerr << "DECLARE CURSOR command failed" << endl;
+ exit(1);
+ }
+
+ // fetch instances from the pg_database, the system catalog of databases
+ if ( !data.ExecTuplesOk("FETCH ALL in myportal") )
+ {
+ cerr << "FETCH ALL command didn't return tuples properly" << endl;
+ exit(1);
+ }
+
+ // first, print out the attribute names
+ int nFields = data.Fields();
+ for (int i = 0; i < nFields; i++)
+ cout << setiosflags(ios::right) << setw(15) << data.FieldName(i);
+ cout << endl << endl;
+
+ // next, print out the instances
+ for (int i = 0; i < data.Tuples(); i++)
+ {
+ for (int j = 0; j < nFields; j++)
+ cout << setiosflags(ios::right) << setw(15) << data.GetValue(i, j);
+ cout << endl;
+ }
+
+ // close the portal
+ data.Exec("CLOSE myportal");
+ return 0;
}
/*
- * testlibpq3.cc
- * Test the C++ version of LIBPQ, the POSTGRES frontend library.
- *
- * queries the template1 database for a list of database names using transaction block
- * and cursor interface.
- *
- */
+* testlibpq3.cc
+* Test the C++ version of LIBPQ, the POSTGRES frontend library.
+*
+* queries the template1 database for a list of database names using transaction block
+* and cursor interface.
+*
+*/
#include
#include
int main()
{
- // Begin, by establishing a connection to the backend.
- // When no parameters are given then the system will
- // try to use reasonable defaults by looking up environment variables
- // or, failing that, using hardwired constants.
- // Create a cursor database query object.
- // All queries using cursor will be performed through this object.
- const char* dbName = "dbname=template1";
- PgCursor cData(dbName, "myportal");
+ // Begin, by establishing a connection to the backend.
+ // When no parameters are given then the system will
+ // try to use reasonable defaults by looking up environment variables
+ // or, failing that, using hardwired constants.
+ // Create a cursor database query object.
+ // All queries using cursor will be performed through this object.
+ const char* dbName = "dbname=template1";
+ PgCursor cData(dbName, "myportal");
- // check to see that the backend connection was successfully made
- if ( cData.ConnectionBad() ) {
- cerr << "Connection to database '" << dbName << "' failed." << endl
- << "Error returned: " << cData.ErrorMessage() << endl;
- exit(1);
- }
-
- // submit command to the backend
- if ( !cData.Declare("select * from pg_database") ) {
- cerr << "DECLARE CURSOR command failed" << endl;
- exit(1);
- }
+ // check to see that the backend connection was successfully made
+ if ( cData.ConnectionBad() )
+ {
+ cerr << "Connection to database '" << dbName << "' failed." << endl
+ << "Error returned: " << cData.ErrorMessage() << endl;
+ exit(1);
+ }
- // fetch instances from the pg_cDatabase, the system catalog of cDatabases
- if ( !cData.Fetch() ) {
- cerr << "FETCH ALL command didn't return tuples properly" << endl;
- exit(1);
- }
-
- // first, print out the attribute names
- int nFields = cData.Fields();
- for (int i=0; i < nFields; i++)
- cout << setiosflags(ios::right) << setw(15) << cData.FieldName(i);
- cout << endl << endl;
+ // submit command to the backend
+ if ( !cData.Declare("select * from pg_database") )
+ {
+ cerr << "DECLARE CURSOR command failed" << endl;
+ exit(1);
+ }
- // next, print out the instances
- for (int i=0; i < cData.Tuples(); i++) {
- for (int j=0; j < nFields; j++)
- cout << setiosflags(ios::right) << setw(15) << cData.GetValue(i,j);
- cout << endl;
- }
- return 0;
+ // fetch instances from the pg_cDatabase, the system catalog of cDatabases
+ if ( !cData.Fetch() )
+ {
+ cerr << "FETCH ALL command didn't return tuples properly" << endl;
+ exit(1);
+ }
+
+ // first, print out the attribute names
+ int nFields = cData.Fields();
+ for (int i = 0; i < nFields; i++)
+ cout << setiosflags(ios::right) << setw(15) << cData.FieldName(i);
+ cout << endl << endl;
+
+ // next, print out the instances
+ for (int i = 0; i < cData.Tuples(); i++)
+ {
+ for (int j = 0; j < nFields; j++)
+ cout << setiosflags(ios::right) << setw(15) << cData.GetValue(i, j);
+ cout << endl;
+ }
+ return 0;
}
/*
- * testlibpq4.cc
- * Test of the asynchronous notification interface
- *
- populate a test database with the following (use testlibpq4.sql):
+* testlibpq4.cc
+* Test of the asynchronous notification interface
+*
+ populate a test database with the following (use testlibpq4.sql):
CREATE TABLE TBL1 (i int4);
CREATE RULE r1 AS ON INSERT TO TBL1 DO [INSERT INTO TBL2 values (new.i); NOTIFY TBL2];
- * Then start up this program
- * After the program has begun, do
+* Then start up this program
+* After the program has begun, do
INSERT INTO TBL1 values (10);
- *
- *
- */
+*
+*
+*/
#include
#include "libpq++.h"
#include
int main()
{
- // Begin, by connecting to the backend using hardwired constants
- // and a test database created by the user prior to the invokation
- // of this test program.
- const char* dbName = "dbname=template1";
- PgDatabase data(dbName);
-
- // Check to see that the backend connection was successfully made
- if ( data.ConnectionBad() ) {
- cerr << "Connection to database '" << dbName << "' failed." << endl
- << data.ErrorMessage() << endl;
- exit(1);
- }
-
- // Listen to a table
- if ( !data.ExecCommandOk("LISTEN TBL2") ) {
- cerr << "LISTEN command failed" << endl;
- exit(1);
- }
-
- // Test asynchronous notification
- while (1) {
- // check for asynchronous returns
- PGnotify* notify = data.Notifies();
- if (notify) {
- cerr << "ASYNC NOTIFY of '" << notify->relname
- << "' from backend pid '" << notify->be_pid
- << "' received" << endl;
- free(notify);
- break;
- }
- }
- return 0;
+ // Begin, by connecting to the backend using hardwired constants
+ // and a test database created by the user prior to the invokation
+ // of this test program.
+ const char* dbName = "dbname=template1";
+ PgDatabase data(dbName);
+
+ // Check to see that the backend connection was successfully made
+ if ( data.ConnectionBad() )
+ {
+ cerr << "Connection to database '" << dbName << "' failed." << endl
+ << data.ErrorMessage() << endl;
+ exit(1);
+ }
+
+ // Listen to a table
+ if ( !data.ExecCommandOk("LISTEN TBL2") )
+ {
+ cerr << "LISTEN command failed" << endl;
+ exit(1);
+ }
+
+ // Test asynchronous notification
+ while (1)
+ {
+ // check for asynchronous returns
+ PGnotify* notify = data.Notifies();
+ if (notify)
+ {
+ cerr << "ASYNC NOTIFY of '" << notify->relname
+ << "' from backend pid '" << notify->be_pid
+ << "' received" << endl;
+ free(notify);
+ break;
+ }
+ }
+ return 0;
}
/*
- * testlibpq5.cc
- * Test the C++ version of LIBPQ, the POSTGRES frontend library.
- * tests the binary cursor interface
- *
- *
- *
- populate a database by doing the following (use testlibpq5.sql):
-
+* testlibpq5.cc
+* Test the C++ version of LIBPQ, the POSTGRES frontend library.
+* tests the binary cursor interface
+*
+*
+*
+populate a database by doing the following (use testlibpq5.sql):
+
CREATE TABLE test1 (i int4, d float4, p polygon);
INSERT INTO test1 values (1, 3.567, '(3.0, 4.0, 1.0, 2.0)'::polygon);
INSERT INTO test1 values (2, 89.05, '(4.0, 3.0, 2.0, 1.0)'::polygon);
- the expected output is:
+the expected output is:
tuple 0: got
- i = (4 bytes) 1,
- d = (4 bytes) 3.567000,
- p = (4 bytes) 2 points boundbox = (hi=3.000000/4.000000, lo = 1.000000,2.000000)
+i = (4 bytes) 1,
+d = (4 bytes) 3.567000,
+p = (4 bytes) 2 points boundbox = (hi=3.000000/4.000000, lo = 1.000000,2.000000)
tuple 1: got
- i = (4 bytes) 2,
- d = (4 bytes) 89.050003,
- p = (4 bytes) 2 points boundbox = (hi=4.000000/3.000000, lo = 2.000000,1.000000)
+i = (4 bytes) 2,
+d = (4 bytes) 89.050003,
+p = (4 bytes) 2 points boundbox = (hi=4.000000/3.000000, lo = 2.000000,1.000000)
- *
- */
+*
+*/
#include
#include "libpq++.h"
#include
-extern "C" {
+extern "C"
+{
#include "postgres.h" // for Postgres types
#include "utils/geo_decls.h" // for the POLYGON type
}
int main()
{
- // Begin, by connecting to the backend using hardwired constants
- // and a test database created by the user prior to the invokation
- // of this test program. Connect using cursor interface.
- const char* dbName = "dbname=template1"; // change this to the name of your test database
- PgCursor data(dbName, "mycursor");
-
- // check to see that the backend connection was successfully made
- if ( data.ConnectionBad() ) {
- cerr << "Connection to database '" << dbName << "' failed." << endl
- << data.ErrorMessage();
- exit(1);
- }
-
- // Declare a binary cursor for all the tuples in database 'test1'
- if ( !data.Declare("select * from test1", 1) ) {
- cerr << "DECLARE CURSOR command failed" << endl;
- exit(1);
- }
-
- // fetch all instances from the current cursor
- if ( !data.Fetch() ) {
- cerr << "FETCH ALL command didn't return tuples properly" << endl;
- exit(1);
- }
-
- // Find the field numbers for the columns 'i', 'd', and 'p'
- int i_fnum = data.FieldNum("i");
- int d_fnum = data.FieldNum("d");
- int p_fnum = data.FieldNum("p");
-
-/*
- for (i=0;i<3;i++) {
- printf("type[%d] = %d, size[%d] = %d\n",
- i, data.FieldType(i),
- i, data.FieldSize(i));
- }
-*/
+ // Begin, by connecting to the backend using hardwired constants
+ // and a test database created by the user prior to the invokation
+ // of this test program. Connect using cursor interface.
+ const char* dbName = "dbname=template1"; // change this to the name of your test database
+ PgCursor data(dbName, "mycursor");
+
+ // check to see that the backend connection was successfully made
+ if ( data.ConnectionBad() )
+ {
+ cerr << "Connection to database '" << dbName << "' failed." << endl
+ << data.ErrorMessage();
+ exit(1);
+ }
+
+ // Declare a binary cursor for all the tuples in database 'test1'
+ if ( !data.Declare("select * from test1", 1) )
+ {
+ cerr << "DECLARE CURSOR command failed" << endl;
+ exit(1);
+ }
+
+ // fetch all instances from the current cursor
+ if ( !data.Fetch() )
+ {
+ cerr << "FETCH ALL command didn't return tuples properly" << endl;
+ exit(1);
+ }
+
+ // Find the field numbers for the columns 'i', 'd', and 'p'
+ int i_fnum = data.FieldNum("i");
+ int d_fnum = data.FieldNum("d");
+ int p_fnum = data.FieldNum("p");
+
+ /*
+ for (i=0;i<3;i++) {
+ printf("type[%d] = %d, size[%d] = %d\n",
+ i, data.FieldType(i),
+ i, data.FieldSize(i));
+ }
+ */
+
+ // Print out the information about the extracted tuple
+ for (int i = 0; i < data.Tuples(); i++)
+ {
+ // we hard-wire this to the 3 fields we know about
+ int* ival = (int*)data.GetValue(i, i_fnum);
+ float* dval = (float*)data.GetValue(i, d_fnum);
+ int plen = data.GetLength(i, p_fnum);
+
+ // Allocate correct memory space for the Polygon struct and copy
+ // the extracted data into it.
+ // plen doesn't include the length field so need to increment by VARHDSZ
+ POLYGON* pval = (POLYGON*) malloc(plen + VARHDRSZ);
+ pval->size = plen;
+ memmove((char*)&pval->npts, data.GetValue(i, p_fnum), plen);
+
+ // Display Polygon Information
+ cout << "tuple " << i << ": got" << endl
+ << " i = (" << data.GetLength(i, i_fnum) << " bytes) " << *ival << "," << endl
+ << " d = (" << data.GetLength(i, d_fnum) << " bytes) " << *dval << "," << endl
+ << " p = (" << data.GetLength(i, d_fnum) << " bytes) " << pval->npts << " points"
+ << "\tboundbox = (hi=" << pval->boundbox.high.x << "/" << pval->boundbox.high.y << ","
+ << "lo = " << pval->boundbox.low.x << "," << pval->boundbox.low.y << ")" << endl;
- // Print out the information about the extracted tuple
- for (int i=0; i < data.Tuples(); i++) {
- // we hard-wire this to the 3 fields we know about
- int* ival = (int*)data.GetValue(i,i_fnum);
- float* dval = (float*)data.GetValue(i,d_fnum);
- int plen = data.GetLength(i,p_fnum);
-
- // Allocate correct memory space for the Polygon struct and copy
- // the extracted data into it.
- // plen doesn't include the length field so need to increment by VARHDSZ
- POLYGON* pval = (POLYGON*) malloc(plen + VARHDRSZ);
- pval->size = plen;
- memmove((char*)&pval->npts, data.GetValue(i,p_fnum), plen);
-
- // Display Polygon Information
- cout << "tuple " << i << ": got" << endl
- << " i = (" << data.GetLength(i,i_fnum) << " bytes) " << *ival << "," << endl
- << " d = (" << data.GetLength(i,d_fnum) << " bytes) " << *dval << "," << endl
- << " p = (" << data.GetLength(i,d_fnum) << " bytes) " << pval->npts << " points"
- << "\tboundbox = (hi=" << pval->boundbox.high.x << "/" << pval->boundbox.high.y << ","
- << "lo = " << pval->boundbox.low.x << "," << pval->boundbox.low.y << ")" << endl;
-
- // Deallocate memory allocated for the Polygon structure
- free(pval);
- }
- return 0;
+ // Deallocate memory allocated for the Polygon structure
+ free(pval);
+ }
+ return 0;
}
/*
- * testlibpq4.cc
- * Test the C++ version of LIBPQ, the POSTGRES frontend library.
- * tests the copy in features
- *
- */
+* testlibpq4.cc
+* Test the C++ version of LIBPQ, the POSTGRES frontend library.
+* tests the copy in features
+*
+*/
#include
#include "libpq++.h"
#include
int main()
{
- // Begin, by connecting to the backend using hardwired constants
- // and a test database created by the user prior to the invokation
- // of this test program. Connect using transaction interface.
- const char* dbName = "dbname=template1";
- PgTransaction data(dbName);
+ // Begin, by connecting to the backend using hardwired constants
+ // and a test database created by the user prior to the invokation
+ // of this test program. Connect using transaction interface.
+ const char* dbName = "dbname=template1";
+ PgTransaction data(dbName);
- // check to see that the backend connection was successfully made
- if ( data.ConnectionBad() ) {
- cerr << "Connection to database '" << dbName << "' failed." << endl
- << data.ErrorMessage();
- exit(1);
- }
- else cout << "Connected to database '" << dbName << "'..." << endl;
+ // check to see that the backend connection was successfully made
+ if ( data.ConnectionBad() )
+ {
+ cerr << "Connection to database '" << dbName << "' failed." << endl
+ << data.ErrorMessage();
+ exit(1);
+ }
+ else
+ cout << "Connected to database '" << dbName << "'..." << endl;
- // Create a new table
- if ( !data.ExecCommandOk("CREATE TABLE foo (a int4, b char(16), d float8)") ) {
- cerr << "CREATE TABLE foo command failed" << endl;
- exit(1);
- }
- else cout << "CREATEd TABLE foo successfully.." << endl;
+ // Create a new table
+ if ( !data.ExecCommandOk("CREATE TABLE foo (a int4, b char(16), d float8)") )
+ {
+ cerr << "CREATE TABLE foo command failed" << endl;
+ exit(1);
+ }
+ else
+ cout << "CREATEd TABLE foo successfully.." << endl;
- // Initiate Copy command
- if ( data.ExecCommandOk("COPY foo FROM STDIN") ) {
- cerr << "COPY foo FROM STDIN" << endl;
- exit(1);
- }
- else cout << "COPY foo FROM STDIN was successful.." << endl;
+ // Initiate Copy command
+ if ( data.ExecCommandOk("COPY foo FROM STDIN") )
+ {
+ cerr << "COPY foo FROM STDIN" << endl;
+ exit(1);
+ }
+ else
+ cout << "COPY foo FROM STDIN was successful.." << endl;
- // Put some test data into the table
- data.PutLine("3\thello world\t4.5\n");
- cout << "Line: \"3\thello world\t4.5\" copied..." << endl;
- data.PutLine("4\tgoodbye word\t7.11\n");
- cout << "Line: \"4\tgoodbye word\t7.11\" copied..." << endl;
- data.PutLine("\\.\n");
- cout << "Line: \"\\.\" copied..." << endl;
- if ( !data.EndCopy() )
- cout << "Ended COPY succesfully..." << endl;
- else cerr << "End Copy failed..." << endl;
-
- // Print the data that was inserted into the table
- if ( data.ExecTuplesOk("SELECT * FROM foo") )
- data.PrintTuples();
- else cerr << "SELECT * FROM foo failed..." << endl;
-
- // Drop the test table
- data.Exec("DROP TABLE foo");
- return 0;
+ // Put some test data into the table
+ data.PutLine("3\thello world\t4.5\n");
+ cout << "Line: \"3\thello world\t4.5\" copied..." << endl;
+ data.PutLine("4\tgoodbye word\t7.11\n");
+ cout << "Line: \"4\tgoodbye word\t7.11\" copied..." << endl;
+ data.PutLine("\\.\n");
+ cout << "Line: \"\\.\" copied..." << endl;
+ if ( !data.EndCopy() )
+ cout << "Ended COPY succesfully..." << endl;
+ else
+ cerr << "End Copy failed..." << endl;
+
+ // Print the data that was inserted into the table
+ if ( data.ExecTuplesOk("SELECT * FROM foo") )
+ data.PrintTuples();
+ else
+ cerr << "SELECT * FROM foo failed..." << endl;
+
+ // Drop the test table
+ data.Exec("DROP TABLE foo");
+ return 0;
}
/*-------------------------------------------------------------------------
- *
- * lotest.cc--
- * test using large objects with libpq
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/examples/Attic/testlo.cc,v 1.8 2000/05/29 21:25:04 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
+*
+* lotest.cc--
+* test using large objects with libpq
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/examples/Attic/testlo.cc,v 1.9 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
#include
#include "libpq++.h"
#include
int main(int argc, char **argv)
{
- // Check if the program was invoked correctly; if not, signal error
- if (argc < 4 || argc > 5) {
- cerr << "Usage: " << argv[0] << " conninfo_str in_filename out_filename [oid]" << endl;
- exit(1);
- }
+ // Check if the program was invoked correctly; if not, signal error
+ if (argc < 4 || argc > 5)
+ {
+ cerr << "Usage: " << argv[0] << " conninfo_str in_filename out_filename [oid]" << endl;
+ exit(1);
+ }
- // Get the arguments passed to the program
- char* conninfo = argv[1];
- char* in_filename = argv[2];
- char* out_filename = argv[3];
+ // Get the arguments passed to the program
+ char* conninfo = argv[1];
+ char* in_filename = argv[2];
+ char* out_filename = argv[3];
- // Set up the connection and create a large object
- int lobjId = ( argc == 4 ? 0 : atoi(argv[4]) );
- PgLargeObject object(lobjId, conninfo);
+ // Set up the connection and create a large object
+ int lobjId = ( argc == 4 ? 0 : atoi(argv[4]) );
+ PgLargeObject object(lobjId, conninfo);
- // check to see that the backend connection was successfully made
- if ( object.ConnectionBad() ) {
- cerr << "Connection with conninfo '" << conninfo << "' failed." << endl
- << object.ErrorMessage();
- exit(1);
- }
+ // check to see that the backend connection was successfully made
+ if ( object.ConnectionBad() )
+ {
+ cerr << "Connection with conninfo '" << conninfo << "' failed." << endl
+ << object.ErrorMessage();
+ exit(1);
+ }
- // Test the import and export features of the Large Object interface
- object.Exec("BEGIN");
- cout << "Importing file \"" << in_filename << "\"..." << endl;
- object.Import(in_filename);
- cout << "Exporting large object to file \"" << out_filename << "\"..." << endl;
- object.Export(out_filename);
- object.Exec("END"); // WHY DOES IT CORE DUMP HERE ???
- return 0;
+ // Test the import and export features of the Large Object interface
+ object.Exec("BEGIN");
+ cout << "Importing file \"" << in_filename << "\"..." << endl;
+ object.Import(in_filename);
+ cout << "Exporting large object to file \"" << out_filename << "\"..." << endl;
+ object.Export(out_filename);
+ object.Exec("END"); // WHY DOES IT CORE DUMP HERE ???
+ return 0;
}
/*-------------------------------------------------------------------------
- *
- * libpq++.h
- *
- *
- * DESCRIPTION
- * C++ client interface to Postgres
- * used for building front-end applications
- *
- * NOTES
- * This is intended to be included by client applications.
- * It will not work as an inclusion in the libpq++ sources, since
- * in the build environment the individual include files are not
- * yet installed in a subdirectory.
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * $Id: libpq++.h,v 1.12 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
+*
+* libpq++.h
+*
+*
+* DESCRIPTION
+* C++ client interface to Postgres
+* used for building front-end applications
+*
+* NOTES
+* This is intended to be included by client applications.
+* It will not work as an inclusion in the libpq++ sources, since
+* in the build environment the individual include files are not
+* yet installed in a subdirectory.
+*
+* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+* Portions Copyright (c) 1994, Regents of the University of California
+*
+* $Id: libpq++.h,v 1.13 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
#ifndef LIBPQXX_H
/*-------------------------------------------------------------------------
- *
- * FILE
- * pgconnection.cc
- *
- * DESCRIPTION
- * implementation of the PgConnection class.
- * PgConnection encapsulates a frontend to backend connection
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgconnection.cc,v 1.14 2002/06/15 18:49:29 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
+*
+* FILE
+* pgconnection.cc
+*
+* DESCRIPTION
+* implementation of the PgConnection class.
+* PgConnection encapsulates a frontend to backend connection
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgconnection.cc,v 1.15 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
#include "pgconnection.h"
// ****************************************************************
// default constructor -- initialize everything
PgConnection::PgConnection()
- : pgConn(NULL), pgResult(NULL), pgCloseConnection(false)
+ : pgConn(NULL), pgResult(NULL), pgCloseConnection(false)
{}
// constructor -- checks environment variable for database name
// Now uses PQconnectdb
+
PgConnection::PgConnection(const char* conninfo)
- : pgConn(NULL), pgResult(NULL), pgCloseConnection(true)
+ : pgConn(NULL), pgResult(NULL), pgCloseConnection(true)
{
- // Connect to the database
- Connect(conninfo);
+ // Connect to the database
+ Connect(conninfo);
}
// destructor - closes down the connection and cleanup
PgConnection::~PgConnection()
{
- // Close the connection only if needed
- // This feature will most probably be used by the derived classes that
- // need not close the connection after they are destructed.
- CloseConnection();
+ // Close the connection only if needed
+ // This feature will most probably be used by the derived classes that
+ // need not close the connection after they are destructed.
+ CloseConnection();
}
// PgConnection::CloseConnection()
// close down the connection if there is one
-void PgConnection::CloseConnection()
+void PgConnection::CloseConnection()
{
- // if the connection is open, close it first
- if (pgCloseConnection) {
- if (pgResult)
- PQclear(pgResult);
- pgResult = NULL;
- if (pgConn)
- PQfinish(pgConn);
- pgConn = NULL;
- pgCloseConnection = false;
- }
+ // if the connection is open, close it first
+ if (pgCloseConnection)
+ {
+ if (pgResult)
+ PQclear(pgResult);
+ pgResult = NULL;
+ if (pgConn)
+ PQfinish(pgConn);
+ pgConn = NULL;
+ pgCloseConnection = false;
+ }
}
// establish a connection to a backend
ConnStatusType PgConnection::Connect(const char conninfo[])
{
- // if the connection is open, close it first
- CloseConnection();
+ // if the connection is open, close it first
+ CloseConnection();
+
+ // Connect to the database
+ pgConn = PQconnectdb(conninfo);
- // Connect to the database
- pgConn = PQconnectdb(conninfo);
+ // Now we have a connection we must close (even if it's bad!)
+ pgCloseConnection = true;
- // Now we have a connection we must close (even if it's bad!)
- pgCloseConnection = true;
-
- // Status will return either CONNECTION_OK or CONNECTION_BAD
- return Status();
+ // Status will return either CONNECTION_OK or CONNECTION_BAD
+ return Status();
}
// PgConnection::status -- return connection or result status
ConnStatusType PgConnection::Status() const
{
- return PQstatus(pgConn);
+ return PQstatus(pgConn);
}
// PgConnection::exec -- send a query to the backend
ExecStatusType PgConnection::Exec(const char* query)
{
- // Clear the result stucture if needed
- if (pgResult)
- PQclear(pgResult);
-
- // Execute the given query
- pgResult = PQexec(pgConn, query);
-
- // Return the status
- if (pgResult)
- return PQresultStatus(pgResult);
- else
- return PGRES_FATAL_ERROR;
+ // Clear the result stucture if needed
+ if (pgResult)
+ PQclear(pgResult);
+
+ // Execute the given query
+ pgResult = PQexec(pgConn, query);
+
+ // Return the status
+ if (pgResult)
+ return PQresultStatus(pgResult);
+ else
+ return PGRES_FATAL_ERROR;
}
// Return true if the Postgres command was executed OK
// PgConnection::notifies() -- returns a notification from a list of unhandled notifications
PGnotify* PgConnection::Notifies()
{
- return PQnotifies(pgConn);
+ return PQnotifies(pgConn);
}
// From Integer To String Conversion Function
string PgConnection::IntToString(int n)
{
- char buffer [4*sizeof(n) + 2];
- sprintf(buffer, "%d", n);
- return buffer;
+ char buffer [4*sizeof(n) + 2];
+ sprintf(buffer, "%d", n);
+ return buffer;
}
bool PgConnection::ConnectionBad() const
-{
- return Status() == CONNECTION_BAD;
+{
+ return Status() == CONNECTION_BAD;
}
const char* PgConnection::ErrorMessage() const
-{
- return (const char *)PQerrorMessage(pgConn);
+{
+ return (const char *)PQerrorMessage(pgConn);
}
-
+
const char* PgConnection::DBName() const
-{
- return (const char *)PQdb(pgConn);
+{
+ return (const char *)PQdb(pgConn);
}
PQnoticeProcessor PgConnection::SetNoticeProcessor(PQnoticeProcessor proc, void *arg)
{
- return PQsetNoticeProcessor(pgConn, proc, arg);
+ return PQsetNoticeProcessor(pgConn, proc, arg);
}
/*-------------------------------------------------------------------------
- *
- * pgconnection.h
- *
- *
- * DESCRIPTION
- * Postgres Connection Class:
- * Manage Postgres backend connection
- *
- * NOTES
- * Currently under construction.
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * $Id: pgconnection.h,v 1.18 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* pgconnection.h
+*
+*
+* DESCRIPTION
+* Postgres Connection Class:
+* Manage Postgres backend connection
+*
+* NOTES
+* Currently under construction.
+*
+* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+* Portions Copyright (c) 1994, Regents of the University of California
+*
+* $Id: pgconnection.h,v 1.19 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#ifndef PGCONNECTION_H
#define PGCONNECTION_H
-extern "C" {
+extern "C"
+{
#include "pg_config.h"
}
#include
#endif
-extern "C" {
+extern "C"
+{
#include "libpq-fe.h"
}
//
// ****************************************************************
// This class contains all the information about the connection
-// to the backend process. All the database classes should be
+// to the backend process. All the database classes should be
// derived from this class to obtain the connection interface.
-class DLLIMPORT PgConnection {
+class DLLIMPORT PgConnection
+{
protected:
- PGconn* pgConn; // Connection Structure
- PGresult* pgResult; // Current Query Result
- bool pgCloseConnection; // true if connection should be closed by destructor
-
+ PGconn* pgConn; // Connection Structure
+ PGresult* pgResult; // Current Query Result
+ bool pgCloseConnection; // true if connection should be closed by destructor
+
public:
- explicit PgConnection(const char* conninfo); // use reasonable & environment defaults
- virtual ~PgConnection(); // close connection and clean up
-
- // Connection status and error messages
- ConnStatusType Status() const;
- bool ConnectionBad() const;
- const char* ErrorMessage() const;
-
- // returns the database name of the connection
- const char* DBName() const;
-
- // Query Execution interface
- ExecStatusType Exec(const char* query); // send a query to the backend
- int ExecCommandOk(const char* query); // send a command and check if it's OK
- int ExecTuplesOk(const char* query); // send a command and check if tuples are returned
- PGnotify* Notifies();
-
+ explicit PgConnection(const char* conninfo); // use reasonable & environment defaults
+ virtual ~PgConnection(); // close connection and clean up
+
+ // Connection status and error messages
+ ConnStatusType Status() const;
+ bool ConnectionBad() const;
+ const char* ErrorMessage() const;
+
+ // returns the database name of the connection
+ const char* DBName() const;
+
+ // Query Execution interface
+ ExecStatusType Exec(const char* query); // send a query to the backend
+ int ExecCommandOk(const char* query); // send a command and check if it's OK
+ int ExecTuplesOk(const char* query); // send a command and check if tuples are returned
+ PGnotify* Notifies();
+
// set the notice processor
PQnoticeProcessor SetNoticeProcessor(PQnoticeProcessor proc, void *arg);
protected:
- ConnStatusType Connect(const char* conninfo);
- void CloseConnection();
- static PGSTD string IntToString(int);
- // Default constructor is only available to subclasses
- PgConnection();
+ ConnStatusType Connect(const char* conninfo);
+ void CloseConnection();
+ static PGSTD string IntToString(int);
+ // Default constructor is only available to subclasses
+ PgConnection();
private:
-// We don't support copying of PgConnection objects,
-// so make copy constructor and assignment op private.
- PgConnection(const PgConnection&);
- PgConnection& operator= (const PgConnection&);
+ // We don't support copying of PgConnection objects,
+ // so make copy constructor and assignment op private.
+ PgConnection(const PgConnection&);
+ PgConnection& operator= (const PgConnection&);
};
/*-------------------------------------------------------------------------
- *
- * FILE
- * pgcursordb.cpp
- *
- * DESCRIPTION
- * implementation of the PgCursor class.
- * PgCursor encapsulates a cursor interface to the backend
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgcursordb.cc,v 1.7 2002/06/15 18:49:29 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* FILE
+* pgcursordb.cpp
+*
+* DESCRIPTION
+* implementation of the PgCursor class.
+* PgCursor encapsulates a cursor interface to the backend
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgcursordb.cc,v 1.8 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#include "pgcursordb.h"
-
+
#ifdef HAVE_NAMESPACE_STD
using namespace std;
#endif
// Make a connection to the specified database with default environment
// See PQconnectdb() for conninfo usage
PgCursor::PgCursor(const char* conninfo, const char* cursor)
- : PgTransaction(conninfo), pgCursor(cursor)
+ : PgTransaction(conninfo), pgCursor(cursor)
{}
// Do not make a connection to the backend -- just query
// Connection should not be closed after the object destructs since some
// other object is using the connection
//PgCursor::PgCursor(const PgConnection& conn, const char* cursor)
-// : PgTransaction(conn), pgCursor(cursor)
+// : PgTransaction(conn), pgCursor(cursor)
//{}
// Destructor: End the transaction block
+
PgCursor::~PgCursor()
{
Close();
{
string cmd = "DECLARE " + pgCursor;
if ( binary )
- cmd += " BINARY";
+ cmd += " BINARY";
cmd += " CURSOR FOR " + query;
return ExecCommandOk( cmd.c_str() );
}
/*-------------------------------------------------------------------------
- *
- * pgcursordb.h
- *
- *
- * DESCRIPTION
- * Postgres Cursor Database Class:
- * Query Postgres backend using a cursor
- *
- * NOTES
- * Currently under construction.
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- *
- * $Id: pgcursordb.h,v 1.11 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* pgcursordb.h
+*
+*
+* DESCRIPTION
+* Postgres Cursor Database Class:
+* Query Postgres backend using a cursor
+*
+* NOTES
+* Currently under construction.
+*
+* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+* Portions Copyright (c) 1994, Regents of the University of California
+*
+*
+* $Id: pgcursordb.h,v 1.12 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#ifndef PGCURSORDB_H
#define PGCURSORDB_H
// manipulates data through it. The interface will introduce some
// ease of use through the methods that will allow cursor specific
// operations, like fetch, forward, etc.
-class DLLIMPORT PgCursor : public PgTransaction {
+class DLLIMPORT PgCursor : public PgTransaction
+{
public:
- PgCursor(const char* conninfo, const char* cursor); // use reasonable & environment defaults
- // connect to the database with given environment and database name
- // PgCursor(const PgConnection&, const char* cursor);
- ~PgCursor(); // close connection and clean up
-
- // Commands associated with cursor interface
- int Declare(PGSTD string query, bool binary = false); // Declare a cursor with given name
- int Fetch(const char* dir = "FORWARD"); // Fetch ALL tuples in given direction
- int Fetch(unsigned num, const char* dir = "FORWARD"); // Fetch specified amount of tuples
- int Close(); // Close the cursor
-
- // Accessors to the cursor name
- const char* Cursor() const { return pgCursor.c_str(); }
- // TODO: Setter has same name as getter--ouch!
- // OBSOLESCENT
- void Cursor(PGSTD string cursor) { pgCursor = cursor; }
-
+ PgCursor(const char* conninfo, const char* cursor); // use reasonable & environment defaults
+ // connect to the database with given environment and database name
+ // PgCursor(const PgConnection&, const char* cursor);
+ ~PgCursor(); // close connection and clean up
+
+ // Commands associated with cursor interface
+ int Declare(PGSTD string query, bool binary = false); // Declare a cursor with given name
+ int Fetch(const char* dir = "FORWARD"); // Fetch ALL tuples in given direction
+ int Fetch(unsigned num, const char* dir = "FORWARD"); // Fetch specified amount of tuples
+ int Close(); // Close the cursor
+
+ // Accessors to the cursor name
+ const char* Cursor() const
+ {
+ return pgCursor.c_str();
+ }
+ // TODO: Setter has same name as getter--ouch!
+ // OBSOLESCENT
+ void Cursor(PGSTD string cursor)
+ {
+ pgCursor = cursor;
+ }
+
protected:
- int Fetch(PGSTD string num, PGSTD string dir);
-
+ int Fetch(PGSTD string num, PGSTD string dir);
+
protected:
- PGSTD string pgCursor;
-
+ PGSTD string pgCursor;
+
protected:
- PgCursor() : PgTransaction() {} // Do not connect
+ PgCursor() : PgTransaction()
+ {} // Do not connect
+
private:
-// We don't support copying of PgCursor objects,
-// so make copy constructor and assignment op private.
- PgCursor(const PgCursor&);
- PgCursor& operator= (const PgCursor&);
-}; // End PgCursor Class Declaration
+ // We don't support copying of PgCursor objects,
+ // so make copy constructor and assignment op private.
+ PgCursor(const PgCursor&);
+ PgCursor& operator= (const PgCursor&);
+}
+; // End PgCursor Class Declaration
#undef PGSTD
/*-------------------------------------------------------------------------
- *
- * FILE
- * pgdatabase.cpp
- *
- * DESCRIPTION
- * implementation of the PgDatabase class.
- * PgDatabase encapsulates some utility routines
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgdatabase.cc,v 1.12 2001/09/30 22:30:37 tgl Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* FILE
+* pgdatabase.cpp
+*
+* DESCRIPTION
+* implementation of the PgDatabase class.
+* PgDatabase encapsulates some utility routines
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgdatabase.cc,v 1.13 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#include "pgdatabase.h"
#ifdef HAVE_NAMESPACE_STD
// OBSOLESCENT (uses PQprint(), which is no longer being maintained)
-void PgDatabase::DisplayTuples(FILE *out,
- bool fillAlign,
- const char* fieldSep,
- bool printHeader,
- bool /* quiet */) const
+void PgDatabase::DisplayTuples(FILE *out,
+ bool fillAlign,
+ const char* fieldSep,
+ bool printHeader,
+ bool /* quiet */) const
{
PQprintOpt po;
po.tableOpt = po.caption = 0;
po.fieldName = 0;
- PQprint(out,pgResult,&po);
+ PQprint(out, pgResult, &po);
}
// OBSOLESCENT (uses PQprint(), which is no longer being maintained)
-void PgDatabase::PrintTuples(FILE *out,
- bool printAttName,
- bool terseOutput,
- bool fillAlign) const
+void PgDatabase::PrintTuples(FILE *out,
+ bool printAttName,
+ bool terseOutput,
+ bool fillAlign) const
{
PQprintOpt po;
po.fieldSep = (char *) (terseOutput ? "" : "|");
po.fieldName = 0;
- PQprint(out,pgResult,&po);
+ PQprint(out, pgResult, &po);
}
int PgDatabase::Tuples() const
-{
-return PQntuples(pgResult);
+{
+ return PQntuples(pgResult);
}
int PgDatabase::CmdTuples() const
{
-const char *a = PQcmdTuples(pgResult);
-return a[0] ? atoi(a) : -1;
+ const char *a = PQcmdTuples(pgResult);
+ return a[0] ? atoi(a) : -1;
}
// TODO: Make const?
int PgDatabase::Fields()
-{
-return PQnfields(pgResult);
+{
+ return PQnfields(pgResult);
}
const char* PgDatabase::FieldName(int field_num) const
-{
-return PQfname(pgResult, field_num);
+{
+ return PQfname(pgResult, field_num);
}
int PgDatabase::FieldNum(const char* field_name) const
-{
-return PQfnumber(pgResult, field_name);
+{
+ return PQfnumber(pgResult, field_name);
}
Oid PgDatabase::FieldType(int field_num) const
-{
-return PQftype(pgResult, field_num);
+{
+ return PQftype(pgResult, field_num);
}
Oid PgDatabase::FieldType(const char* field_name) const
-{
-return PQftype(pgResult, FieldNum(field_name));
+{
+ return PQftype(pgResult, FieldNum(field_name));
}
int PgDatabase::FieldSize(int field_num) const
-{
-return PQfsize(pgResult, field_num);
+{
+ return PQfsize(pgResult, field_num);
}
int PgDatabase::FieldSize(const char* field_name) const
-{
-return PQfsize(pgResult, FieldNum(field_name));
+{
+ return PQfsize(pgResult, FieldNum(field_name));
}
const char* PgDatabase::GetValue(int tup_num, int field_num) const
-{
-return PQgetvalue(pgResult, tup_num, field_num);
+{
+ return PQgetvalue(pgResult, tup_num, field_num);
}
const char* PgDatabase::GetValue(int tup_num, const char* field_name) const
-{
-return PQgetvalue(pgResult, tup_num, FieldNum(field_name));
+{
+ return PQgetvalue(pgResult, tup_num, FieldNum(field_name));
}
bool PgDatabase::GetIsNull(int tup_num, int field_num) const
-{
-return PQgetisnull(pgResult, tup_num, field_num);
+{
+ return PQgetisnull(pgResult, tup_num, field_num);
}
bool PgDatabase::GetIsNull(int tup_num, const char* field_name) const
-{
-return PQgetisnull(pgResult, tup_num, FieldNum(field_name));
+{
+ return PQgetisnull(pgResult, tup_num, FieldNum(field_name));
}
int PgDatabase::GetLength(int tup_num, int field_num) const
-{
-return PQgetlength(pgResult, tup_num, field_num);
+{
+ return PQgetlength(pgResult, tup_num, field_num);
}
int PgDatabase::GetLength(int tup_num, const char* field_name) const
-{
-return PQgetlength(pgResult, tup_num, FieldNum(field_name));
+{
+ return PQgetlength(pgResult, tup_num, FieldNum(field_name));
}
int PgDatabase::GetLine(char str[], int length)
-{
-return PQgetline(pgConn, str, length);
+{
+ return PQgetline(pgConn, str, length);
}
void PgDatabase::PutLine(const char str[])
-{
-PQputline(pgConn, str);
+{
+ PQputline(pgConn, str);
}
const char* PgDatabase::OidStatus() const
-{
-return PQoidStatus(pgResult);
+{
+ return PQoidStatus(pgResult);
}
int PgDatabase::EndCopy()
-{
-return PQendcopy(pgConn);
+{
+ return PQendcopy(pgConn);
}
/*-------------------------------------------------------------------------
- *
- * pgdatabase.h
- *
- *
- * DESCRIPTION
- * Postgres Database Class:
- * Query Postgres backend to obtain query results
- *
- * NOTES
- * Currently under construction.
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- *
- * $Id: pgdatabase.h,v 1.13 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* pgdatabase.h
+*
+*
+* DESCRIPTION
+* Postgres Database Class:
+* Query Postgres backend to obtain query results
+*
+* NOTES
+* Currently under construction.
+*
+* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+* Portions Copyright (c) 1994, Regents of the University of California
+*
+*
+* $Id: pgdatabase.h,v 1.14 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#ifndef PGDATABASE_H
#define PGDATABASE_H
-
+
#ifndef PGCONNECTION_H
#include "pgconnection.h"
#endif
// PgDatabase - a class for accessing databases
//
// ****************************************************************
-// This is the basic database access class. Its interface should
+// This is the basic database access class. Its interface should
// be used only after a query has been sent to the backend and
// results are being received.
-class DLLIMPORT PgDatabase : public PgConnection {
+class DLLIMPORT PgDatabase : public PgConnection
+{
public:
- // connect to the database with conninfo
- explicit PgDatabase(const char* conninfo) : PgConnection(conninfo) {}
+ // connect to the database with conninfo
+ explicit PgDatabase(const char* conninfo) : PgConnection(conninfo)
+ {}
+
+ ~PgDatabase()
+ {} // close connection and clean up
- ~PgDatabase() {} // close connection and clean up
- typedef int size_type;
-
- // query result access
- size_type Tuples() const;
- size_type CmdTuples() const;
- int Fields();
- const char* FieldName(int field_num) const;
- int FieldNum(const char* field_name) const;
- Oid FieldType(int field_num) const;
- Oid FieldType(const char* field_name) const;
- int FieldSize(int field_num) const;
- int FieldSize(const char* field_name) const;
- const char* GetValue(size_type tup_num, int field_num) const;
- const char* GetValue(size_type tup_num, const char* field_name) const;
- bool GetIsNull(size_type tup_num, int field_num) const;
- bool GetIsNull(size_type tup_num, const char* field_name) const;
- int GetLength(size_type tup_num, int field_num) const;
- int GetLength(size_type tup_num, const char* field_name) const;
+ typedef int size_type;
- // OBSOLESCENT (use PQprint()):
- void DisplayTuples(FILE *out=0, bool fillAlign=true,
- const char* fieldSep="|", bool printHeader=true, bool quiet=false) const;
- void PrintTuples(FILE *out=0, bool printAttName=true,
- bool terseOutput=false, bool fillAlign=false) const;
+ // query result access
+ size_type Tuples() const;
+ size_type CmdTuples() const;
+ int Fields();
+ const char* FieldName(int field_num) const;
+ int FieldNum(const char* field_name) const;
+ Oid FieldType(int field_num) const;
+ Oid FieldType(const char* field_name) const;
+ int FieldSize(int field_num) const;
+ int FieldSize(const char* field_name) const;
+ const char* GetValue(size_type tup_num, int field_num) const;
+ const char* GetValue(size_type tup_num, const char* field_name) const;
+ bool GetIsNull(size_type tup_num, int field_num) const;
+ bool GetIsNull(size_type tup_num, const char* field_name) const;
+ int GetLength(size_type tup_num, int field_num) const;
+ int GetLength(size_type tup_num, const char* field_name) const;
+
+ // OBSOLESCENT (use PQprint()):
+ void DisplayTuples(FILE *out = 0, bool fillAlign = true,
+ const char* fieldSep = "|", bool printHeader = true, bool quiet = false) const;
+ void PrintTuples(FILE *out = 0, bool printAttName = true,
+ bool terseOutput = false, bool fillAlign = false) const;
+
+ // copy command related access
+ int GetLine(char str[], int length);
+ void PutLine(const char str[]);
+ const char* OidStatus() const;
+ int EndCopy();
- // copy command related access
- int GetLine(char str[], int length);
- void PutLine(const char str[]);
- const char* OidStatus() const;
- int EndCopy();
-
protected:
- PgDatabase() : PgConnection() {} // Do not connect
+ PgDatabase() : PgConnection()
+ {} // Do not connect
+
private:
-// We don't support copying of PgDatabase objects,
-// so make copy constructor and assignment op private.
- PgDatabase(const PgDatabase&);
- PgDatabase& operator= (const PgDatabase&);
+ // We don't support copying of PgDatabase objects,
+ // so make copy constructor and assignment op private.
+ PgDatabase(const PgDatabase&);
+ PgDatabase& operator= (const PgDatabase&);
};
#endif // PGDATABASE_H
/*-------------------------------------------------------------------------
- *
- * FILE
- * pglobject.cc
- *
- * DESCRIPTION
- * implementation of the PgLargeObject class.
- * PgLargeObject encapsulates a frontend to backend connection
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pglobject.cc,v 1.10 2002/06/15 19:30:40 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
+*
+* FILE
+* pglobject.cc
+*
+* DESCRIPTION
+* implementation of the PgLargeObject class.
+* PgLargeObject encapsulates a frontend to backend connection
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pglobject.cc,v 1.11 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
#include "pglobject.h"
-
-extern "C" {
+
+extern "C"
+{
#include "libpq/libpq-fs.h"
}
// creates a large object in the default database
// See PQconnectdb() for conninfo usage
PgLargeObject::PgLargeObject(const char* conninfo)
- : PgConnection(conninfo)
+ : PgConnection(conninfo)
{
- Init();
- if (! ConnectionBad()) {
- Create();
- Open();
- }
+ Init();
+ if (! ConnectionBad())
+ {
+ Create();
+ Open();
+ }
}
// constructor
// open an existing large object in the default database
// See PQconnectdb() for conninfo usage
-PgLargeObject::PgLargeObject(Oid lobjId, const char* conninfo)
- : PgConnection(conninfo)
+PgLargeObject::PgLargeObject(Oid lobjId, const char* conninfo)
+ : PgConnection(conninfo)
{
- Init(lobjId);
- if (! ConnectionBad()) {
- if ( !pgObject )
- Create();
- Open();
- }
+ Init(lobjId);
+ if (! ConnectionBad())
+ {
+ if ( !pgObject )
+ Create();
+ Open();
+ }
}
// destructor -- closes large object
PgLargeObject::~PgLargeObject()
{
- Close();
+ Close();
}
// PgLargeObject::Init
// Initialize the variables
void PgLargeObject::Init(Oid lobjId)
{
- pgFd = -1;
- pgObject = lobjId;
+ pgFd = -1;
+ pgObject = lobjId;
}
// PgLargeObject::create
// create large object and check for errors
void PgLargeObject::Create()
{
- // Create the object
- pgObject = lo_creat(pgConn, INV_READ|INV_WRITE);
-
- // Check for possible errors
- if (!pgObject)
- loStatus = "PgLargeObject: can't create large object" ;
- else
- loStatus = "PgLargeObject: created large object" ;
+ // Create the object
+ pgObject = lo_creat(pgConn, INV_READ | INV_WRITE);
+
+ // Check for possible errors
+ if (!pgObject)
+ loStatus = "PgLargeObject: can't create large object" ;
+ else
+ loStatus = "PgLargeObject: created large object" ;
}
// PgLargeObject::open
// open large object and check for errors
void PgLargeObject::Open()
{
- // Close any prior object
- Close();
- // Open the object
- pgFd = lo_open(pgConn, pgObject, INV_READ|INV_WRITE);
-
- // Check for possible errors
- string objStr( IntToString(pgObject) );
- if (pgFd < 0)
- loStatus = "PgLargeObject: can't open large object " + objStr ;
- else
- loStatus = "PgLargeObject: created and opened large object " + objStr ;
+ // Close any prior object
+ Close();
+ // Open the object
+ pgFd = lo_open(pgConn, pgObject, INV_READ | INV_WRITE);
+
+ // Check for possible errors
+ string objStr( IntToString(pgObject) );
+ if (pgFd < 0)
+ loStatus = "PgLargeObject: can't open large object " + objStr ;
+ else
+ loStatus = "PgLargeObject: created and opened large object " + objStr ;
}
// PgLargeObject::unlink
// destroy large object and delete from it from the database
int PgLargeObject::Unlink()
{
- // Unlink the object
- int temp = lo_unlink(pgConn, pgObject);
-
- // Initialize the large object upon success
- if (!temp) {
- Close();
- Init();
- }
-
- // Return the status
- return temp;
+ // Unlink the object
+ int temp = lo_unlink(pgConn, pgObject);
+
+ // Initialize the large object upon success
+ if (!temp)
+ {
+ Close();
+ Init();
+ }
+
+ // Return the status
+ return temp;
}
void PgLargeObject::Close()
-{
- if (pgFd >= 0) lo_close(pgConn, pgFd);
- pgFd = -1;
+{
+ if (pgFd >= 0)
+ lo_close(pgConn, pgFd);
+ pgFd = -1;
}
int PgLargeObject::Read(char* buf, int len)
-{
- return lo_read(pgConn, pgFd, buf, len);
+{
+ return lo_read(pgConn, pgFd, buf, len);
}
int PgLargeObject::Write(const char* buf, int len)
-{
- return lo_write(pgConn, pgFd, (char*)buf, len);
+{
+ return lo_write(pgConn, pgFd, (char*)buf, len);
}
int PgLargeObject::LSeek(int offset, int whence)
-{
- return lo_lseek(pgConn, pgFd, offset, whence);
+{
+ return lo_lseek(pgConn, pgFd, offset, whence);
}
int PgLargeObject::Tell() const
-{
- return lo_tell(pgConn, pgFd);
+{
+ return lo_tell(pgConn, pgFd);
}
-Oid PgLargeObject::Import(const char* filename)
-{
- return pgObject = lo_import(pgConn, filename);
+Oid PgLargeObject::Import(const char* filename)
+{
+ return pgObject = lo_import(pgConn, filename);
}
-int PgLargeObject::Export(const char* filename)
-{
- return lo_export(pgConn, pgObject, filename);
+int PgLargeObject::Export(const char* filename)
+{
+ return lo_export(pgConn, pgObject, filename);
}
string PgLargeObject::Status() const
-{
- return loStatus;
+{
+ return loStatus;
}
-Oid PgLargeObject::LOid(){
- return pgObject;
+Oid PgLargeObject::LOid()
+{
+ return pgObject;
}
/*-------------------------------------------------------------------------
- *
- * FILE
- * pglobject.h
- *
- * DESCRIPTION
- * declaration of the PGlobj class.
- * PGlobj encapsulates a large object interface to Postgres backend
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- *
- * $Id: pglobject.h,v 1.10 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* FILE
+* pglobject.h
+*
+* DESCRIPTION
+* declaration of the PGlobj class.
+* PGlobj encapsulates a large object interface to Postgres backend
+*
+* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+* Portions Copyright (c) 1994, Regents of the University of California
+*
+*
+* $Id: pglobject.h,v 1.11 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#ifndef PGLOBJECT_H
#define PGLOBJECT_H
-
+
#ifndef PGCONNECTION_H
#include "pgconnection.h"
#endif
// PgLargeObject - a class for accessing Large Object in a database
//
// ****************************************************************
-class DLLIMPORT PgLargeObject : public PgConnection {
+class DLLIMPORT PgLargeObject : public PgConnection
+{
private:
- int pgFd;
- Oid pgObject;
- PGSTD string loStatus;
- void Init(Oid lobjId = 0);
+ int pgFd;
+ Oid pgObject;
+ PGSTD string loStatus;
+ void Init(Oid lobjId = 0);
public:
- explicit PgLargeObject(const char* conninfo = 0); // use reasonable defaults and create large object
- explicit PgLargeObject(Oid lobjId, const char* conninfo = 0); // use reasonable defaults and open large object
- ~PgLargeObject(); // close connection and clean up
-
- void Create();
- void Open();
- void Close();
- int Read(char* buf, int len);
- int Write(const char* buf, int len);
- int LSeek(int offset, int whence);
- int Tell() const;
- int Unlink();
- Oid LOid();
- Oid Import(const char* filename);
- int Export(const char* filename);
- PGSTD string Status() const;
+ explicit PgLargeObject(const char* conninfo = 0); // use reasonable defaults and create large object
+ explicit PgLargeObject(Oid lobjId, const char* conninfo = 0); // use reasonable defaults and open large object
+ ~PgLargeObject(); // close connection and clean up
+
+ void Create();
+ void Open();
+ void Close();
+ int Read(char* buf, int len);
+ int Write(const char* buf, int len);
+ int LSeek(int offset, int whence);
+ int Tell() const;
+ int Unlink();
+ Oid LOid();
+ Oid Import(const char* filename);
+ int Export(const char* filename);
+ PGSTD string Status() const;
private:
-// We don't support copying of PgLargeObject objects,
-// so make copy constructor and assignment op private.
- PgLargeObject(const PgLargeObject&);
- PgLargeObject& operator= (const PgLargeObject&);
+ // We don't support copying of PgLargeObject objects,
+ // so make copy constructor and assignment op private.
+ PgLargeObject(const PgLargeObject&);
+ PgLargeObject& operator= (const PgLargeObject&);
};
/*-------------------------------------------------------------------------
- *
- * FILE
- * pgtransdb.cpp
- *
- * DESCRIPTION
- * implementation of the PgTransaction class.
- * PgConnection encapsulates a transaction querying to backend
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgtransdb.cc,v 1.4 2001/05/09 17:29:10 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* FILE
+* pgtransdb.cpp
+*
+* DESCRIPTION
+* implementation of the PgTransaction class.
+* PgConnection encapsulates a transaction querying to backend
+*
+* Copyright (c) 1994, Regents of the University of California
+*
+* IDENTIFICATION
+* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgtransdb.cc,v 1.5 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#include "pgtransdb.h"
// ****************************************************************
//
// ****************************************************************
// Make a connection to the specified database with default environment
-// See PQconnectdb() for conninfo usage.
+// See PQconnectdb() for conninfo usage.
PgTransaction::PgTransaction(const char* conninfo)
- : PgDatabase(conninfo),
- pgCommitted(true)
+ : PgDatabase(conninfo),
+ pgCommitted(true)
{
BeginTransaction();
}
// Destructor: End the transaction block
PgTransaction::~PgTransaction()
{
- if (!pgCommitted) Exec("ABORT");
+ if (!pgCommitted)
+ Exec("ABORT");
}
// Begin the transaction block
/*-------------------------------------------------------------------------
- *
- * pgtransdb.h
- *
- *
- * DESCRIPTION
- * Postgres Transaction Database Class:
- * Query Postgres backend using a transaction block
- *
- * NOTES
- * Currently under construction.
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- *
- * $Id: pgtransdb.h,v 1.9 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
+*
+* pgtransdb.h
+*
+*
+* DESCRIPTION
+* Postgres Transaction Database Class:
+* Query Postgres backend using a transaction block
+*
+* NOTES
+* Currently under construction.
+*
+* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
+* Portions Copyright (c) 1994, Regents of the University of California
+*
+*
+* $Id: pgtransdb.h,v 1.10 2002/07/02 16:32:19 momjian Exp $
+*
+*-------------------------------------------------------------------------
+*/
+
#ifndef PGTRANSDB_H
#define PGTRANSDB_H
// This is the database access class that keeps an open
// transaction block during its lifetime. The block is ENDed when
// the object is destroyed.
-class DLLIMPORT PgTransaction : public PgDatabase {
+class DLLIMPORT PgTransaction : public PgDatabase
+{
public:
- explicit PgTransaction(const char* conninfo); // use reasonable & environment defaults
- // connect to the database with given environment and database name
- // explicit PgTransaction(const PgConnection&);
- ~PgTransaction(); // close connection and clean up
-
+ explicit PgTransaction(const char* conninfo); // use reasonable & environment defaults
+ // connect to the database with given environment and database name
+ // explicit PgTransaction(const PgConnection&);
+ ~PgTransaction(); // close connection and clean up
+
protected:
- ExecStatusType BeginTransaction();
- ExecStatusType EndTransaction();
-
+ ExecStatusType BeginTransaction();
+ ExecStatusType EndTransaction();
+
protected:
- PgTransaction() : PgDatabase(), pgCommitted(true) {} // Do not connect
+ PgTransaction() : PgDatabase(), pgCommitted(true)
+ {} // Do not connect
+
private:
- bool pgCommitted;
+ bool pgCommitted;
-// We don't support copying of PgTransaction objects,
-// so make copy constructor and assignment op private.
- PgTransaction(const PgTransaction&);
- PgTransaction& operator= (const PgTransaction&);
-}; // End PgTransaction Class Declaration
+ // We don't support copying of PgTransaction objects,
+ // so make copy constructor and assignment op private.
+ PgTransaction(const PgTransaction&);
+ PgTransaction& operator= (const PgTransaction&);
+}
+; // End PgTransaction Class Declaration
#endif // PGTRANSDB_H
projects / postgresql.git / commitdiff