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