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/*
* Copyright (c) 2010-2012 Postgres-XC Development Group
*/
#include <sys/types.h>
#include <unistd.h>
#include "gtm/gtm_c.h"
#include "gtm/libpq-fe.h"
#include "gtm/gtm_client.h"
#define client_log(x) printf x
int
main(int argc, char *argv[])
{
int ii;
pid_t parent_pid;
GTM_Conn *conn = NULL;
char connect_string[100];
//FIXME This statement is wrong
sprintf(connect_string, "host=%s port=%d node_name=one remote_type=%d", GTM_NODE_COORDINATOR);
conn = PQconnectGTM(connect_string);
if (conn == NULL)
{
client_log(("Error in connection"));
exit(1);
}
parent_pid = getpid();
/*
* Create sequences
*/
for (ii = 0; ii < 20; ii++)
{
char buf[100];
GTM_SequenceKeyData seqkey;
sprintf(buf, "%d:%d", ii, ii);
seqkey.gsk_keylen = strlen(buf);
seqkey.gsk_key = buf;
if (open_sequence(conn, &seqkey, 10, 1, 10000, 100, false))
client_log(("Open seq failed\n"));
else
client_log(("Opened Sequence %s\n", seqkey.gsk_key));
}
/*
* Close the GTM connection
*/
GTMPQfinish(conn);
/*
* Start few process which would independently use the sequences
*/
for (ii = 0; ii < 3; ii++)
fork();
/*
* Each process now opens a new connection with the GTM
*/
conn = PQconnectGTM(connect_string);
/*
* Try to read/increment the sequence
*/
for (ii = 0; ii < 20; ii++)
{
char buf[100];
GTM_SequenceKeyData seqkey;
GTM_Sequence seqval;
int jj;
sprintf(buf, "%d:%d", ii, ii);
seqkey.gsk_keylen = strlen(buf);
seqkey.gsk_key = buf;
if ((seqval = get_current(conn, &seqkey)) == InvalidSequenceValue)
client_log(("get_current seq failed for sequene %s\n", seqkey.gsk_key));
else
client_log(("CURRENT SEQVAL(%s): %lld\n", seqkey.gsk_key, seqval));
for (jj = 0; jj < 5; jj++)
{
if ((seqval = get_next(conn, &seqkey)) == InvalidSequenceValue)
client_log(("get_current seq failed for sequence %s\n", seqkey.gsk_key));
else
client_log(("NEXT SEQVAL(%s): %lld ", seqkey.gsk_key, seqval));
}
client_log(("\n"));
}
/*
* The main process now closes the sequences. We want to call close only
* once, hence this approach
*/
if (getpid() == parent_pid)
{
/*
* Wait long enough so that all other processes are done
*/
sleep(20);
for (ii = 0; ii < 20; ii++)
{
char buf[100];
GTM_SequenceKeyData seqkey;
sprintf(buf, "%d:%d", ii, ii);
seqkey.gsk_keylen = strlen(buf);
seqkey.gsk_key = buf;
if (close_sequence(conn, &seqkey))
client_log(("Close seq failed for sequence %s\n", seqkey.gsk_key));
else
client_log(("Sequene closed %s\n", seqkey.gsk_key));
}
}
GTMPQfinish(conn);
return 0;
}
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