1707 lines
36 KiB
C
1707 lines
36 KiB
C
/*
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* $PostgreSQL: pgsql/contrib/pgbench/pgbench.c,v 1.68 2007/07/06 20:17:02 wieck Exp $
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*
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* pgbench: a simple benchmark program for PostgreSQL
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* written by Tatsuo Ishii
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*
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* Copyright (c) 2000-2007 Tatsuo Ishii
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that the above copyright notice appear in all
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* copies and that both that copyright notice and this permission
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* notice appear in supporting documentation, and that the name of the
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* author not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. The author makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*/
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#include "postgres_fe.h"
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#include "libpq-fe.h"
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#include <ctype.h>
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#ifdef WIN32
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#include "win32.h"
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#else
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#include <sys/time.h>
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#include <unistd.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h> /* for getrlimit */
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#endif
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#endif /* ! WIN32 */
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extern char *optarg;
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extern int optind;
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#ifdef WIN32
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#undef select
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#endif
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/********************************************************************
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* some configurable parameters */
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#define MAXCLIENTS 1024 /* max number of clients allowed */
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int nclients = 1; /* default number of simulated clients */
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int nxacts = 10; /* default number of transactions per clients */
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/*
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* scaling factor. for example, scale = 10 will make 1000000 tuples of
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* accounts table.
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*/
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int scale = 1;
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/*
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* fillfactor. for example, fillfactor = 90 will use only 90 percent
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* space during inserts and leave 10 percent free.
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*/
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int fillfactor = 100;
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/*
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* end of configurable parameters
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*********************************************************************/
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#define nbranches 1
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#define ntellers 10
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#define naccounts 100000
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FILE *LOGFILE = NULL;
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bool use_log; /* log transaction latencies to a file */
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int remains; /* number of remaining clients */
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int is_connect; /* establish connection for each transaction */
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char *pghost = "";
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char *pgport = NULL;
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char *pgoptions = NULL;
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char *pgtty = NULL;
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char *login = NULL;
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char *pwd = NULL;
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char *dbName;
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/* variable definitions */
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typedef struct
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{
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char *name; /* variable name */
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char *value; /* its value */
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} Variable;
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/*
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* structures used in custom query mode
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*/
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typedef struct
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{
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PGconn *con; /* connection handle to DB */
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int id; /* client No. */
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int state; /* state No. */
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int cnt; /* xacts count */
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int ecnt; /* error count */
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int listen; /* 0 indicates that an async query has been
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* sent */
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int sleeping; /* 1 indicates that the client is napping */
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struct timeval until; /* napping until */
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Variable *variables; /* array of variable definitions */
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int nvariables;
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struct timeval txn_begin; /* used for measuring latencies */
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int use_file; /* index in sql_files for this client */
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} CState;
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/*
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* queries read from files
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*/
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#define SQL_COMMAND 1
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#define META_COMMAND 2
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#define MAX_ARGS 10
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typedef struct
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{
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int type; /* command type (SQL_COMMAND or META_COMMAND) */
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int argc; /* number of commands */
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char *argv[MAX_ARGS]; /* command list */
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} Command;
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#define MAX_FILES 128 /* max number of SQL script files allowed */
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Command **sql_files[MAX_FILES]; /* SQL script files */
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int num_files; /* its number */
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/* default scenario */
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static char *tpc_b = {
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"\\set nbranches :scale\n"
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"\\set ntellers 10 * :scale\n"
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"\\set naccounts 100000 * :scale\n"
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"\\setrandom aid 1 :naccounts\n"
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"\\setrandom bid 1 :nbranches\n"
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"\\setrandom tid 1 :ntellers\n"
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"\\setrandom delta -5000 5000\n"
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"BEGIN;\n"
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"UPDATE accounts SET abalance = abalance + :delta WHERE aid = :aid;\n"
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"SELECT abalance FROM accounts WHERE aid = :aid;\n"
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"UPDATE tellers SET tbalance = tbalance + :delta WHERE tid = :tid;\n"
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"UPDATE branches SET bbalance = bbalance + :delta WHERE bid = :bid;\n"
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"INSERT INTO history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);\n"
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"END;\n"
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};
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/* -N case */
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static char *simple_update = {
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"\\set nbranches :scale\n"
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"\\set ntellers 10 * :scale\n"
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"\\set naccounts 100000 * :scale\n"
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"\\setrandom aid 1 :naccounts\n"
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"\\setrandom bid 1 :nbranches\n"
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"\\setrandom tid 1 :ntellers\n"
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"\\setrandom delta -5000 5000\n"
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"BEGIN;\n"
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"UPDATE accounts SET abalance = abalance + :delta WHERE aid = :aid;\n"
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"SELECT abalance FROM accounts WHERE aid = :aid;\n"
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"INSERT INTO history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);\n"
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"END;\n"
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};
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/* -S case */
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static char *select_only = {
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"\\set naccounts 100000 * :scale\n"
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"\\setrandom aid 1 :naccounts\n"
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"SELECT abalance FROM accounts WHERE aid = :aid;\n"
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};
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static void
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usage(void)
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{
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fprintf(stderr, "usage: pgbench [-h hostname][-p port][-c nclients][-t ntransactions][-s scaling_factor][-D varname=value][-n][-C][-v][-S][-N][-f filename][-l][-U login][-P password][-d][dbname]\n");
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fprintf(stderr, "(initialize mode): pgbench -i [-h hostname][-p port][-s scaling_factor] [-F fillfactor] [-U login][-P password][-d][dbname]\n");
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}
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/* random number generator */
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static int
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getrand(int min, int max)
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{
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return min + (int) (((max - min) * (double) random()) / MAX_RANDOM_VALUE + 0.5);
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}
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/* call PQexec() and exit() on failure */
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static void
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executeStatement(PGconn *con, const char* sql)
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{
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PGresult *res;
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res = PQexec(con, sql);
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if (PQresultStatus(res) != PGRES_COMMAND_OK)
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{
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fprintf(stderr, "%s", PQerrorMessage(con));
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exit(1);
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}
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PQclear(res);
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}
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/* set up a connection to the backend */
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static PGconn *
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doConnect(void)
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{
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PGconn *con;
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con = PQsetdbLogin(pghost, pgport, pgoptions, pgtty, dbName,
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login, pwd);
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if (con == NULL)
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{
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fprintf(stderr, "Connection to database '%s' failed.\n", dbName);
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fprintf(stderr, "Memory allocatin problem?\n");
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return (NULL);
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}
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if (PQstatus(con) == CONNECTION_BAD)
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{
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fprintf(stderr, "Connection to database '%s' failed.\n", dbName);
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if (PQerrorMessage(con))
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fprintf(stderr, "%s", PQerrorMessage(con));
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else
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fprintf(stderr, "No explanation from the backend\n");
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return (NULL);
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}
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executeStatement(con, "SET search_path = public");
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return (con);
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}
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/* throw away response from backend */
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static void
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discard_response(CState * state)
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{
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PGresult *res;
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do
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{
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res = PQgetResult(state->con);
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if (res)
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PQclear(res);
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} while (res);
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}
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/* check to see if the SQL result was good */
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static int
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check(CState *state, PGresult *res, int n)
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{
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CState *st = &state[n];
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switch (PQresultStatus(res))
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{
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case PGRES_COMMAND_OK:
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case PGRES_TUPLES_OK:
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/* OK */
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break;
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default:
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fprintf(stderr, "Client %d aborted in state %d: %s",
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n, st->state, PQerrorMessage(st->con));
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remains--; /* I've aborted */
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PQfinish(st->con);
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st->con = NULL;
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return (-1);
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}
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return (0); /* OK */
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}
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static int
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compareVariables(const void *v1, const void *v2)
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{
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return strcmp(((const Variable *) v1)->name,
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((const Variable *) v2)->name);
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}
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static char *
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getVariable(CState * st, char *name)
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{
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Variable key,
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*var;
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/* On some versions of Solaris, bsearch of zero items dumps core */
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if (st->nvariables <= 0)
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return NULL;
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key.name = name;
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var = (Variable *) bsearch((void *) &key,
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(void *) st->variables,
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st->nvariables,
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sizeof(Variable),
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compareVariables);
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if (var != NULL)
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return var->value;
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else
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return NULL;
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}
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static int
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putVariable(CState * st, char *name, char *value)
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{
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Variable key,
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*var;
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key.name = name;
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/* On some versions of Solaris, bsearch of zero items dumps core */
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if (st->nvariables > 0)
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var = (Variable *) bsearch((void *) &key,
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(void *) st->variables,
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st->nvariables,
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sizeof(Variable),
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compareVariables);
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else
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var = NULL;
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if (var == NULL)
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{
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Variable *newvars;
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if (st->variables)
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newvars = (Variable *) realloc(st->variables,
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(st->nvariables + 1) * sizeof(Variable));
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else
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newvars = (Variable *) malloc(sizeof(Variable));
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if (newvars == NULL)
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return false;
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st->variables = newvars;
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var = &newvars[st->nvariables];
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var->name = NULL;
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var->value = NULL;
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if ((var->name = strdup(name)) == NULL
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|| (var->value = strdup(value)) == NULL)
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{
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free(var->name);
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free(var->value);
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return false;
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}
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st->nvariables++;
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qsort((void *) st->variables, st->nvariables, sizeof(Variable),
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compareVariables);
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}
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else
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{
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char *val;
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if ((val = strdup(value)) == NULL)
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return false;
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free(var->value);
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var->value = val;
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}
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return true;
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}
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static char *
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assignVariables(CState * st, char *sql)
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{
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int i,
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j;
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char *p,
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*name,
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*val;
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void *tmp;
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i = 0;
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while ((p = strchr(&sql[i], ':')) != NULL)
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{
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i = j = p - sql;
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do
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{
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i++;
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} while (isalnum((unsigned char) sql[i]) || sql[i] == '_');
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if (i == j + 1)
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continue;
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name = malloc(i - j);
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if (name == NULL)
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return NULL;
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memcpy(name, &sql[j + 1], i - (j + 1));
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name[i - (j + 1)] = '\0';
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val = getVariable(st, name);
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free(name);
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if (val == NULL)
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continue;
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if (strlen(val) > i - j)
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{
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tmp = realloc(sql, strlen(sql) - (i - j) + strlen(val) + 1);
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if (tmp == NULL)
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{
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free(sql);
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return NULL;
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}
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sql = tmp;
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}
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if (strlen(val) != i - j)
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memmove(&sql[j + strlen(val)], &sql[i], strlen(&sql[i]) + 1);
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strncpy(&sql[j], val, strlen(val));
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if (strlen(val) < i - j)
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{
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tmp = realloc(sql, strlen(sql) + 1);
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if (tmp == NULL)
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{
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free(sql);
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return NULL;
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}
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sql = tmp;
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}
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i = j + strlen(val);
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}
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return sql;
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}
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static void
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doCustom(CState * state, int n, int debug)
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{
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PGresult *res;
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CState *st = &state[n];
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Command **commands;
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top:
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commands = sql_files[st->use_file];
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if (st->sleeping)
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{ /* are we sleeping? */
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int usec;
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struct timeval now;
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gettimeofday(&now, NULL);
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usec = (st->until.tv_sec - now.tv_sec) * 1000000 +
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st->until.tv_usec - now.tv_usec;
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if (usec <= 0)
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st->sleeping = 0; /* Done sleeping, go ahead with next command */
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else
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return; /* Still sleeping, nothing to do here */
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}
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if (st->listen)
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{ /* are we receiver? */
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if (commands[st->state]->type == SQL_COMMAND)
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{
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if (debug)
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fprintf(stderr, "client %d receiving\n", n);
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if (!PQconsumeInput(st->con))
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{ /* there's something wrong */
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fprintf(stderr, "Client %d aborted in state %d. Probably the backend died while processing.\n", n, st->state);
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remains--; /* I've aborted */
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PQfinish(st->con);
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st->con = NULL;
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return;
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}
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if (PQisBusy(st->con))
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return; /* don't have the whole result yet */
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}
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|
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/*
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* transaction finished: record the time it took in the log
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*/
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if (use_log && commands[st->state + 1] == NULL)
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{
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double diff;
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struct timeval now;
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gettimeofday(&now, NULL);
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diff = (int) (now.tv_sec - st->txn_begin.tv_sec) * 1000000.0 +
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(int) (now.tv_usec - st->txn_begin.tv_usec);
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fprintf(LOGFILE, "%d %d %.0f %d %ld %ld\n",
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st->id, st->cnt, diff, st->use_file,
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(long) now.tv_sec, (long) now.tv_usec);
|
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}
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|
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if (commands[st->state]->type == SQL_COMMAND)
|
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{
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res = PQgetResult(st->con);
|
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if (check(state, res, n))
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{
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PQclear(res);
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return;
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}
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PQclear(res);
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discard_response(st);
|
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}
|
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|
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if (commands[st->state + 1] == NULL)
|
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{
|
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if (is_connect)
|
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{
|
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PQfinish(st->con);
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st->con = NULL;
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}
|
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|
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if (++st->cnt >= nxacts)
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{
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remains--; /* I've done */
|
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if (st->con != NULL)
|
|
{
|
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PQfinish(st->con);
|
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st->con = NULL;
|
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}
|
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return;
|
|
}
|
|
}
|
|
|
|
/* increment state counter */
|
|
st->state++;
|
|
if (commands[st->state] == NULL)
|
|
{
|
|
st->state = 0;
|
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st->use_file = getrand(0, num_files - 1);
|
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commands = sql_files[st->use_file];
|
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}
|
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}
|
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|
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if (st->con == NULL)
|
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{
|
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if ((st->con = doConnect()) == NULL)
|
|
{
|
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fprintf(stderr, "Client %d aborted in establishing connection.\n",
|
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n);
|
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remains--; /* I've aborted */
|
|
PQfinish(st->con);
|
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st->con = NULL;
|
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return;
|
|
}
|
|
}
|
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|
|
if (use_log && st->state == 0)
|
|
gettimeofday(&(st->txn_begin), NULL);
|
|
|
|
if (commands[st->state]->type == SQL_COMMAND)
|
|
{
|
|
char *sql;
|
|
|
|
if ((sql = strdup(commands[st->state]->argv[0])) == NULL
|
|
|| (sql = assignVariables(st, sql)) == NULL)
|
|
{
|
|
fprintf(stderr, "out of memory\n");
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
|
|
if (debug)
|
|
fprintf(stderr, "client %d sending %s\n", n, sql);
|
|
if (PQsendQuery(st->con, sql) == 0)
|
|
{
|
|
if (debug)
|
|
fprintf(stderr, "PQsendQuery(%s)failed\n", sql);
|
|
st->ecnt++;
|
|
}
|
|
else
|
|
{
|
|
st->listen = 1; /* flags that should be listened */
|
|
}
|
|
free(sql);
|
|
}
|
|
else if (commands[st->state]->type == META_COMMAND)
|
|
{
|
|
int argc = commands[st->state]->argc,
|
|
i;
|
|
char **argv = commands[st->state]->argv;
|
|
|
|
if (debug)
|
|
{
|
|
fprintf(stderr, "client %d executing \\%s", n, argv[0]);
|
|
for (i = 1; i < argc; i++)
|
|
fprintf(stderr, " %s", argv[i]);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
if (pg_strcasecmp(argv[0], "setrandom") == 0)
|
|
{
|
|
char *var;
|
|
int min,
|
|
max;
|
|
char res[64];
|
|
|
|
if (*argv[2] == ':')
|
|
{
|
|
if ((var = getVariable(st, argv[2] + 1)) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: undefined variable %s\n", argv[0], argv[2]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
min = atoi(var);
|
|
}
|
|
else
|
|
min = atoi(argv[2]);
|
|
|
|
#ifdef NOT_USED
|
|
if (min < 0)
|
|
{
|
|
fprintf(stderr, "%s: invalid minimum number %d\n", argv[0], min);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if (*argv[3] == ':')
|
|
{
|
|
if ((var = getVariable(st, argv[3] + 1)) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: undefined variable %s\n", argv[0], argv[3]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
max = atoi(var);
|
|
}
|
|
else
|
|
max = atoi(argv[3]);
|
|
|
|
if (max < min || max > MAX_RANDOM_VALUE)
|
|
{
|
|
fprintf(stderr, "%s: invalid maximum number %d\n", argv[0], max);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
printf("min: %d max: %d random: %d\n", min, max, getrand(min, max));
|
|
#endif
|
|
snprintf(res, sizeof(res), "%d", getrand(min, max));
|
|
|
|
if (putVariable(st, argv[1], res) == false)
|
|
{
|
|
fprintf(stderr, "%s: out of memory\n", argv[0]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
|
|
st->listen = 1;
|
|
}
|
|
else if (pg_strcasecmp(argv[0], "set") == 0)
|
|
{
|
|
char *var;
|
|
int ope1,
|
|
ope2;
|
|
char res[64];
|
|
|
|
if (*argv[2] == ':')
|
|
{
|
|
if ((var = getVariable(st, argv[2] + 1)) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: undefined variable %s\n", argv[0], argv[2]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
ope1 = atoi(var);
|
|
}
|
|
else
|
|
ope1 = atoi(argv[2]);
|
|
|
|
if (argc < 5)
|
|
snprintf(res, sizeof(res), "%d", ope1);
|
|
else
|
|
{
|
|
if (*argv[4] == ':')
|
|
{
|
|
if ((var = getVariable(st, argv[4] + 1)) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: undefined variable %s\n", argv[0], argv[4]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
ope2 = atoi(var);
|
|
}
|
|
else
|
|
ope2 = atoi(argv[4]);
|
|
|
|
if (strcmp(argv[3], "+") == 0)
|
|
snprintf(res, sizeof(res), "%d", ope1 + ope2);
|
|
else if (strcmp(argv[3], "-") == 0)
|
|
snprintf(res, sizeof(res), "%d", ope1 - ope2);
|
|
else if (strcmp(argv[3], "*") == 0)
|
|
snprintf(res, sizeof(res), "%d", ope1 * ope2);
|
|
else if (strcmp(argv[3], "/") == 0)
|
|
{
|
|
if (ope2 == 0)
|
|
{
|
|
fprintf(stderr, "%s: division by zero\n", argv[0]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
snprintf(res, sizeof(res), "%d", ope1 / ope2);
|
|
}
|
|
else
|
|
{
|
|
fprintf(stderr, "%s: unsupported operator %s\n", argv[0], argv[3]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (putVariable(st, argv[1], res) == false)
|
|
{
|
|
fprintf(stderr, "%s: out of memory\n", argv[0]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
|
|
st->listen = 1;
|
|
}
|
|
else if (pg_strcasecmp(argv[0], "sleep") == 0)
|
|
{
|
|
char *var;
|
|
int usec;
|
|
struct timeval now;
|
|
|
|
if (*argv[1] == ':')
|
|
{
|
|
if ((var = getVariable(st, argv[1] + 1)) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: undefined variable %s\n", argv[0], argv[1]);
|
|
st->ecnt++;
|
|
return;
|
|
}
|
|
usec = atoi(var);
|
|
}
|
|
else
|
|
usec = atoi(argv[1]);
|
|
|
|
if (argc > 2)
|
|
{
|
|
if (pg_strcasecmp(argv[2], "ms") == 0)
|
|
usec *= 1000;
|
|
else if (pg_strcasecmp(argv[2], "s") == 0)
|
|
usec *= 1000000;
|
|
}
|
|
else
|
|
usec *= 1000000;
|
|
|
|
gettimeofday(&now, NULL);
|
|
st->until.tv_sec = now.tv_sec + (now.tv_usec + usec) / 1000000;
|
|
st->until.tv_usec = (now.tv_usec + usec) % 1000000;
|
|
st->sleeping = 1;
|
|
|
|
st->listen = 1;
|
|
}
|
|
|
|
goto top;
|
|
}
|
|
}
|
|
|
|
/* discard connections */
|
|
static void
|
|
disconnect_all(CState * state)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
if (state[i].con)
|
|
PQfinish(state[i].con);
|
|
}
|
|
}
|
|
|
|
/* create tables and setup data */
|
|
static void
|
|
init(void)
|
|
{
|
|
PGconn *con;
|
|
PGresult *res;
|
|
static char *DDLs[] = {
|
|
"drop table if exists branches",
|
|
"create table branches(bid int not null,bbalance int,filler char(88)) with (fillfactor=%d)",
|
|
"drop table if exists tellers",
|
|
"create table tellers(tid int not null,bid int,tbalance int,filler char(84)) with (fillfactor=%d)",
|
|
"drop table if exists accounts",
|
|
"create table accounts(aid int not null,bid int,abalance int,filler char(84)) with (fillfactor=%d)",
|
|
"drop table if exists history",
|
|
"create table history(tid int,bid int,aid int,delta int,mtime timestamp,filler char(22))"};
|
|
static char *DDLAFTERs[] = {
|
|
"alter table branches add primary key (bid)",
|
|
"alter table tellers add primary key (tid)",
|
|
"alter table accounts add primary key (aid)"};
|
|
|
|
|
|
char sql[256];
|
|
|
|
int i;
|
|
|
|
if ((con = doConnect()) == NULL)
|
|
exit(1);
|
|
|
|
for (i = 0; i < lengthof(DDLs); i++)
|
|
{
|
|
/*
|
|
* set fillfactor for branches, tellers and accounts tables
|
|
*/
|
|
if ((strstr(DDLs[i], "create table branches") == DDLs[i]) ||
|
|
(strstr(DDLs[i], "create table tellers") == DDLs[i]) ||
|
|
(strstr(DDLs[i], "create table accounts") == DDLs[i]))
|
|
{
|
|
char ddl_stmt[128];
|
|
snprintf(ddl_stmt, 128, DDLs[i], fillfactor);
|
|
executeStatement(con, ddl_stmt);
|
|
continue;
|
|
}
|
|
else
|
|
executeStatement(con, DDLs[i]);
|
|
}
|
|
|
|
executeStatement(con, "begin");
|
|
|
|
for (i = 0; i < nbranches * scale; i++)
|
|
{
|
|
snprintf(sql, 256, "insert into branches(bid,bbalance) values(%d,0)", i + 1);
|
|
executeStatement(con, sql);
|
|
}
|
|
|
|
for (i = 0; i < ntellers * scale; i++)
|
|
{
|
|
snprintf(sql, 256, "insert into tellers(tid,bid,tbalance) values (%d,%d,0)"
|
|
,i + 1, i / ntellers + 1);
|
|
executeStatement(con, sql);
|
|
}
|
|
|
|
executeStatement(con, "commit");
|
|
|
|
/*
|
|
* fill the accounts table with some data
|
|
*/
|
|
fprintf(stderr, "creating tables...\n");
|
|
|
|
executeStatement(con, "begin");
|
|
executeStatement(con, "truncate accounts");
|
|
|
|
res = PQexec(con, "copy accounts from stdin");
|
|
if (PQresultStatus(res) != PGRES_COPY_IN)
|
|
{
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
for (i = 0; i < naccounts * scale; i++)
|
|
{
|
|
int j = i + 1;
|
|
|
|
snprintf(sql, 256, "%d\t%d\t%d\t\n", j, i / naccounts + 1, 0);
|
|
if (PQputline(con, sql))
|
|
{
|
|
fprintf(stderr, "PQputline failed\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (j % 10000 == 0)
|
|
fprintf(stderr, "%d tuples done.\n", j);
|
|
}
|
|
if (PQputline(con, "\\.\n"))
|
|
{
|
|
fprintf(stderr, "very last PQputline failed\n");
|
|
exit(1);
|
|
}
|
|
if (PQendcopy(con))
|
|
{
|
|
fprintf(stderr, "PQendcopy failed\n");
|
|
exit(1);
|
|
}
|
|
executeStatement(con, "commit");
|
|
|
|
/*
|
|
* create indexes
|
|
*/
|
|
fprintf(stderr, "set primary key...\n");
|
|
for (i = 0; i < lengthof(DDLAFTERs); i++)
|
|
executeStatement(con, DDLAFTERs[i]);
|
|
|
|
/* vacuum */
|
|
fprintf(stderr, "vacuum...");
|
|
executeStatement(con, "vacuum analyze");
|
|
|
|
fprintf(stderr, "done.\n");
|
|
PQfinish(con);
|
|
}
|
|
|
|
static Command *
|
|
process_commands(char *buf)
|
|
{
|
|
const char delim[] = " \f\n\r\t\v";
|
|
|
|
Command *my_commands;
|
|
int j;
|
|
char *p,
|
|
*tok;
|
|
|
|
if ((p = strchr(buf, '\n')) != NULL)
|
|
*p = '\0';
|
|
|
|
p = buf;
|
|
while (isspace((unsigned char) *p))
|
|
p++;
|
|
|
|
if (*p == '\0' || strncmp(p, "--", 2) == 0)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
my_commands = (Command *) malloc(sizeof(Command));
|
|
if (my_commands == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
my_commands->argc = 0;
|
|
|
|
if (*p == '\\')
|
|
{
|
|
my_commands->type = META_COMMAND;
|
|
|
|
j = 0;
|
|
tok = strtok(++p, delim);
|
|
|
|
while (tok != NULL)
|
|
{
|
|
if ((my_commands->argv[j] = strdup(tok)) == NULL)
|
|
return NULL;
|
|
|
|
my_commands->argc++;
|
|
|
|
j++;
|
|
tok = strtok(NULL, delim);
|
|
}
|
|
|
|
if (pg_strcasecmp(my_commands->argv[0], "setrandom") == 0)
|
|
{
|
|
if (my_commands->argc < 4)
|
|
{
|
|
fprintf(stderr, "%s: missing argument\n", my_commands->argv[0]);
|
|
return NULL;
|
|
}
|
|
|
|
for (j = 4; j < my_commands->argc; j++)
|
|
fprintf(stderr, "%s: extra argument \"%s\" ignored\n",
|
|
my_commands->argv[0], my_commands->argv[j]);
|
|
}
|
|
else if (pg_strcasecmp(my_commands->argv[0], "set") == 0)
|
|
{
|
|
if (my_commands->argc < 3)
|
|
{
|
|
fprintf(stderr, "%s: missing argument\n", my_commands->argv[0]);
|
|
return NULL;
|
|
}
|
|
|
|
for (j = my_commands->argc < 5 ? 3 : 5; j < my_commands->argc; j++)
|
|
fprintf(stderr, "%s: extra argument \"%s\" ignored\n",
|
|
my_commands->argv[0], my_commands->argv[j]);
|
|
}
|
|
else if (pg_strcasecmp(my_commands->argv[0], "sleep") == 0)
|
|
{
|
|
if (my_commands->argc < 2)
|
|
{
|
|
fprintf(stderr, "%s: missing argument\n", my_commands->argv[0]);
|
|
return NULL;
|
|
}
|
|
|
|
if (my_commands->argc >= 3)
|
|
{
|
|
if (pg_strcasecmp(my_commands->argv[2], "us") != 0 &&
|
|
pg_strcasecmp(my_commands->argv[2], "ms") != 0 &&
|
|
pg_strcasecmp(my_commands->argv[2], "s"))
|
|
{
|
|
fprintf(stderr, "%s: unknown time unit '%s' - must be us, ms or s\n",
|
|
my_commands->argv[0], my_commands->argv[2]);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
for (j = 3; j < my_commands->argc; j++)
|
|
fprintf(stderr, "%s: extra argument \"%s\" ignored\n",
|
|
my_commands->argv[0], my_commands->argv[j]);
|
|
}
|
|
else
|
|
{
|
|
fprintf(stderr, "Invalid command %s\n", my_commands->argv[0]);
|
|
return NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
my_commands->type = SQL_COMMAND;
|
|
|
|
if ((my_commands->argv[0] = strdup(p)) == NULL)
|
|
return NULL;
|
|
|
|
my_commands->argc++;
|
|
}
|
|
|
|
return my_commands;
|
|
}
|
|
|
|
static int
|
|
process_file(char *filename)
|
|
{
|
|
#define COMMANDS_ALLOC_NUM 128
|
|
|
|
Command **my_commands;
|
|
FILE *fd;
|
|
int lineno;
|
|
char buf[BUFSIZ];
|
|
int alloc_num;
|
|
|
|
if (num_files >= MAX_FILES)
|
|
{
|
|
fprintf(stderr, "Up to only %d SQL files are allowed\n", MAX_FILES);
|
|
exit(1);
|
|
}
|
|
|
|
alloc_num = COMMANDS_ALLOC_NUM;
|
|
my_commands = (Command **) malloc(sizeof(Command *) * alloc_num);
|
|
if (my_commands == NULL)
|
|
return false;
|
|
|
|
if (strcmp(filename, "-") == 0)
|
|
fd = stdin;
|
|
else if ((fd = fopen(filename, "r")) == NULL)
|
|
{
|
|
fprintf(stderr, "%s: %s\n", filename, strerror(errno));
|
|
return false;
|
|
}
|
|
|
|
lineno = 0;
|
|
|
|
while (fgets(buf, sizeof(buf), fd) != NULL)
|
|
{
|
|
Command *commands;
|
|
int i;
|
|
|
|
i = 0;
|
|
while (isspace((unsigned char) buf[i]))
|
|
i++;
|
|
|
|
if (buf[i] != '\0' && strncmp(&buf[i], "--", 2) != 0)
|
|
{
|
|
commands = process_commands(&buf[i]);
|
|
if (commands == NULL)
|
|
{
|
|
fclose(fd);
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
continue;
|
|
|
|
my_commands[lineno] = commands;
|
|
lineno++;
|
|
|
|
if (lineno >= alloc_num)
|
|
{
|
|
alloc_num += COMMANDS_ALLOC_NUM;
|
|
my_commands = realloc(my_commands, sizeof(Command *) * alloc_num);
|
|
if (my_commands == NULL)
|
|
{
|
|
fclose(fd);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
fclose(fd);
|
|
|
|
my_commands[lineno] = NULL;
|
|
|
|
sql_files[num_files++] = my_commands;
|
|
|
|
return true;
|
|
}
|
|
|
|
static Command **
|
|
process_builtin(char *tb)
|
|
{
|
|
#define COMMANDS_ALLOC_NUM 128
|
|
|
|
Command **my_commands;
|
|
int lineno;
|
|
char buf[BUFSIZ];
|
|
int alloc_num;
|
|
|
|
if (*tb == '\0')
|
|
return NULL;
|
|
|
|
alloc_num = COMMANDS_ALLOC_NUM;
|
|
my_commands = (Command **) malloc(sizeof(Command *) * alloc_num);
|
|
if (my_commands == NULL)
|
|
return NULL;
|
|
|
|
lineno = 0;
|
|
|
|
for (;;)
|
|
{
|
|
char *p;
|
|
Command *commands;
|
|
|
|
p = buf;
|
|
while (*tb && *tb != '\n')
|
|
*p++ = *tb++;
|
|
|
|
if (*tb == '\0')
|
|
break;
|
|
|
|
if (*tb == '\n')
|
|
tb++;
|
|
|
|
*p = '\0';
|
|
|
|
commands = process_commands(buf);
|
|
if (commands == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
my_commands[lineno] = commands;
|
|
lineno++;
|
|
|
|
if (lineno >= alloc_num)
|
|
{
|
|
alloc_num += COMMANDS_ALLOC_NUM;
|
|
my_commands = realloc(my_commands, sizeof(Command *) * alloc_num);
|
|
if (my_commands == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
my_commands[lineno] = NULL;
|
|
|
|
return my_commands;
|
|
}
|
|
|
|
/* print out results */
|
|
static void
|
|
printResults(
|
|
int ttype, CState * state,
|
|
struct timeval * tv1, struct timeval * tv2,
|
|
struct timeval * tv3)
|
|
{
|
|
double t1,
|
|
t2;
|
|
int i;
|
|
int normal_xacts = 0;
|
|
char *s;
|
|
|
|
for (i = 0; i < nclients; i++)
|
|
normal_xacts += state[i].cnt;
|
|
|
|
t1 = (tv3->tv_sec - tv1->tv_sec) * 1000000.0 + (tv3->tv_usec - tv1->tv_usec);
|
|
t1 = normal_xacts * 1000000.0 / t1;
|
|
|
|
t2 = (tv3->tv_sec - tv2->tv_sec) * 1000000.0 + (tv3->tv_usec - tv2->tv_usec);
|
|
t2 = normal_xacts * 1000000.0 / t2;
|
|
|
|
if (ttype == 0)
|
|
s = "TPC-B (sort of)";
|
|
else if (ttype == 2)
|
|
s = "Update only accounts";
|
|
else if (ttype == 1)
|
|
s = "SELECT only";
|
|
else
|
|
s = "Custom query";
|
|
|
|
printf("transaction type: %s\n", s);
|
|
printf("scaling factor: %d\n", scale);
|
|
printf("number of clients: %d\n", nclients);
|
|
printf("number of transactions per client: %d\n", nxacts);
|
|
printf("number of transactions actually processed: %d/%d\n", normal_xacts, nxacts * nclients);
|
|
printf("tps = %f (including connections establishing)\n", t1);
|
|
printf("tps = %f (excluding connections establishing)\n", t2);
|
|
}
|
|
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int c;
|
|
int is_init_mode = 0; /* initialize mode? */
|
|
int is_no_vacuum = 0; /* no vacuum at all before testing? */
|
|
int do_vacuum_accounts = 0; /* do vacuum accounts before testing? */
|
|
int debug = 0; /* debug flag */
|
|
int ttype = 0; /* transaction type. 0: TPC-B, 1: SELECT only,
|
|
* 2: skip update of branches and tellers */
|
|
char *filename = NULL;
|
|
|
|
CState *state; /* status of clients */
|
|
|
|
struct timeval tv1; /* start up time */
|
|
struct timeval tv2; /* after establishing all connections to the
|
|
* backend */
|
|
struct timeval tv3; /* end time */
|
|
|
|
int i;
|
|
|
|
fd_set input_mask;
|
|
int nsocks; /* return from select(2) */
|
|
int maxsock; /* max socket number to be waited */
|
|
struct timeval now;
|
|
struct timeval timeout;
|
|
int min_usec;
|
|
|
|
#ifdef HAVE_GETRLIMIT
|
|
struct rlimit rlim;
|
|
#endif
|
|
|
|
PGconn *con;
|
|
PGresult *res;
|
|
char *env;
|
|
|
|
char val[64];
|
|
|
|
#ifdef WIN32
|
|
/* stderr is buffered on Win32. */
|
|
setvbuf(stderr, NULL, _IONBF, 0);
|
|
#endif
|
|
|
|
if ((env = getenv("PGHOST")) != NULL && *env != '\0')
|
|
pghost = env;
|
|
if ((env = getenv("PGPORT")) != NULL && *env != '\0')
|
|
pgport = env;
|
|
else if ((env = getenv("PGUSER")) != NULL && *env != '\0')
|
|
login = env;
|
|
|
|
state = (CState *) malloc(sizeof(CState));
|
|
if (state == NULL)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for state\n");
|
|
exit(1);
|
|
}
|
|
|
|
memset(state, 0, sizeof(*state));
|
|
|
|
while ((c = getopt(argc, argv, "ih:nvp:dc:t:s:U:P:CNSlf:D:F:")) != -1)
|
|
{
|
|
switch (c)
|
|
{
|
|
case 'i':
|
|
is_init_mode++;
|
|
break;
|
|
case 'h':
|
|
pghost = optarg;
|
|
break;
|
|
case 'n':
|
|
is_no_vacuum++;
|
|
break;
|
|
case 'v':
|
|
do_vacuum_accounts++;
|
|
break;
|
|
case 'p':
|
|
pgport = optarg;
|
|
break;
|
|
case 'd':
|
|
debug++;
|
|
break;
|
|
case 'S':
|
|
ttype = 1;
|
|
break;
|
|
case 'N':
|
|
ttype = 2;
|
|
break;
|
|
case 'c':
|
|
nclients = atoi(optarg);
|
|
if (nclients <= 0 || nclients > MAXCLIENTS)
|
|
{
|
|
fprintf(stderr, "invalid number of clients: %d\n", nclients);
|
|
exit(1);
|
|
}
|
|
#ifdef HAVE_GETRLIMIT
|
|
#ifdef RLIMIT_NOFILE /* most platforms use RLIMIT_NOFILE */
|
|
if (getrlimit(RLIMIT_NOFILE, &rlim) == -1)
|
|
#else /* but BSD doesn't ... */
|
|
if (getrlimit(RLIMIT_OFILE, &rlim) == -1)
|
|
#endif /* RLIMIT_NOFILE */
|
|
{
|
|
fprintf(stderr, "getrlimit failed: %s\n", strerror(errno));
|
|
exit(1);
|
|
}
|
|
if (rlim.rlim_cur <= (nclients + 2))
|
|
{
|
|
fprintf(stderr, "You need at least %d open files but you are only allowed to use %ld.\n", nclients + 2, (long) rlim.rlim_cur);
|
|
fprintf(stderr, "Use limit/ulimit to increase the limit before using pgbench.\n");
|
|
exit(1);
|
|
}
|
|
#endif /* HAVE_GETRLIMIT */
|
|
break;
|
|
case 'C':
|
|
is_connect = 1;
|
|
break;
|
|
case 's':
|
|
scale = atoi(optarg);
|
|
if (scale <= 0)
|
|
{
|
|
fprintf(stderr, "invalid scaling factor: %d\n", scale);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 't':
|
|
nxacts = atoi(optarg);
|
|
if (nxacts <= 0)
|
|
{
|
|
fprintf(stderr, "invalid number of transactions: %d\n", nxacts);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'U':
|
|
login = optarg;
|
|
break;
|
|
case 'P':
|
|
pwd = optarg;
|
|
break;
|
|
case 'l':
|
|
use_log = true;
|
|
break;
|
|
case 'f':
|
|
ttype = 3;
|
|
filename = optarg;
|
|
if (process_file(filename) == false || *sql_files[num_files - 1] == NULL)
|
|
exit(1);
|
|
break;
|
|
case 'D':
|
|
{
|
|
char *p;
|
|
|
|
if ((p = strchr(optarg, '=')) == NULL || p == optarg || *(p + 1) == '\0')
|
|
{
|
|
fprintf(stderr, "invalid variable definition: %s\n", optarg);
|
|
exit(1);
|
|
}
|
|
|
|
*p++ = '\0';
|
|
if (putVariable(&state[0], optarg, p) == false)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for variable\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
break;
|
|
case 'F':
|
|
fillfactor = atoi(optarg);
|
|
if ((fillfactor < 10) || (fillfactor > 100))
|
|
{
|
|
fprintf(stderr, "invalid fillfactor: %d\n", fillfactor);
|
|
exit(1);
|
|
}
|
|
break;
|
|
default:
|
|
usage();
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (argc > optind)
|
|
dbName = argv[optind];
|
|
else
|
|
{
|
|
if ((env = getenv("PGDATABASE")) != NULL && *env != '\0')
|
|
dbName = env;
|
|
else if (login != NULL && *login != '\0')
|
|
dbName = login;
|
|
else
|
|
dbName = "";
|
|
}
|
|
|
|
if (is_init_mode)
|
|
{
|
|
init();
|
|
exit(0);
|
|
}
|
|
|
|
remains = nclients;
|
|
|
|
if (getVariable(&state[0], "scale") == NULL)
|
|
{
|
|
snprintf(val, sizeof(val), "%d", scale);
|
|
if (putVariable(&state[0], "scale", val) == false)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for variable\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (nclients > 1)
|
|
{
|
|
state = (CState *) realloc(state, sizeof(CState) * nclients);
|
|
if (state == NULL)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for state\n");
|
|
exit(1);
|
|
}
|
|
|
|
memset(state + 1, 0, sizeof(*state) * (nclients - 1));
|
|
|
|
snprintf(val, sizeof(val), "%d", scale);
|
|
|
|
for (i = 1; i < nclients; i++)
|
|
{
|
|
int j;
|
|
|
|
for (j = 0; j < state[0].nvariables; j++)
|
|
{
|
|
if (putVariable(&state[i], state[0].variables[j].name, state[0].variables[j].value) == false)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for variable\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (putVariable(&state[i], "scale", val) == false)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for variable\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (use_log)
|
|
{
|
|
char logpath[64];
|
|
|
|
snprintf(logpath, 64, "pgbench_log.%d", getpid());
|
|
LOGFILE = fopen(logpath, "w");
|
|
|
|
if (LOGFILE == NULL)
|
|
{
|
|
fprintf(stderr, "Couldn't open logfile \"%s\": %s", logpath, strerror(errno));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (debug)
|
|
{
|
|
printf("pghost: %s pgport: %s nclients: %d nxacts: %d dbName: %s\n",
|
|
pghost, pgport, nclients, nxacts, dbName);
|
|
}
|
|
|
|
/* opening connection... */
|
|
con = doConnect();
|
|
if (con == NULL)
|
|
exit(1);
|
|
|
|
if (PQstatus(con) == CONNECTION_BAD)
|
|
{
|
|
fprintf(stderr, "Connection to database '%s' failed.\n", dbName);
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
|
|
if (ttype != 3)
|
|
{
|
|
/*
|
|
* get the scaling factor that should be same as count(*) from
|
|
* branches if this is not a custom query
|
|
*/
|
|
res = PQexec(con, "select count(*) from branches");
|
|
if (PQresultStatus(res) != PGRES_TUPLES_OK)
|
|
{
|
|
fprintf(stderr, "%s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
scale = atoi(PQgetvalue(res, 0, 0));
|
|
if (scale < 0)
|
|
{
|
|
fprintf(stderr, "count(*) from branches invalid (%d)\n", scale);
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
snprintf(val, sizeof(val), "%d", scale);
|
|
if (putVariable(&state[0], "scale", val) == false)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for variable\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (nclients > 1)
|
|
{
|
|
for (i = 1; i < nclients; i++)
|
|
{
|
|
if (putVariable(&state[i], "scale", val) == false)
|
|
{
|
|
fprintf(stderr, "Couldn't allocate memory for variable\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!is_no_vacuum)
|
|
{
|
|
fprintf(stderr, "starting vacuum...");
|
|
executeStatement(con, "vacuum branches");
|
|
executeStatement(con, "vacuum tellers");
|
|
executeStatement(con, "delete from history");
|
|
executeStatement(con, "vacuum history");
|
|
fprintf(stderr, "end.\n");
|
|
|
|
if (do_vacuum_accounts)
|
|
{
|
|
fprintf(stderr, "starting vacuum accounts...");
|
|
executeStatement(con, "vacuum analyze accounts");
|
|
fprintf(stderr, "end.\n");
|
|
}
|
|
}
|
|
PQfinish(con);
|
|
|
|
/* set random seed */
|
|
gettimeofday(&tv1, NULL);
|
|
srandom((unsigned int) tv1.tv_usec);
|
|
|
|
/* get start up time */
|
|
gettimeofday(&tv1, NULL);
|
|
|
|
if (is_connect == 0)
|
|
{
|
|
/* make connections to the database */
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
state[i].id = i;
|
|
if ((state[i].con = doConnect()) == NULL)
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/* time after connections set up */
|
|
gettimeofday(&tv2, NULL);
|
|
|
|
/* process bultin SQL scripts */
|
|
switch (ttype)
|
|
{
|
|
case 0:
|
|
sql_files[0] = process_builtin(tpc_b);
|
|
num_files = 1;
|
|
break;
|
|
|
|
case 1:
|
|
sql_files[0] = process_builtin(select_only);
|
|
num_files = 1;
|
|
break;
|
|
|
|
case 2:
|
|
sql_files[0] = process_builtin(simple_update);
|
|
num_files = 1;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* send start up queries in async manner */
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
Command **commands = sql_files[state[i].use_file];
|
|
int prev_ecnt = state[i].ecnt;
|
|
|
|
state[i].use_file = getrand(0, num_files - 1);
|
|
doCustom(state, i, debug);
|
|
|
|
if (state[i].ecnt > prev_ecnt && commands[state[i].state]->type == META_COMMAND)
|
|
{
|
|
fprintf(stderr, "Client %d aborted in state %d. Execution meta-command failed.\n", i, state[i].state);
|
|
remains--; /* I've aborted */
|
|
PQfinish(state[i].con);
|
|
state[i].con = NULL;
|
|
}
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
if (remains <= 0)
|
|
{ /* all done ? */
|
|
disconnect_all(state);
|
|
/* get end time */
|
|
gettimeofday(&tv3, NULL);
|
|
printResults(ttype, state, &tv1, &tv2, &tv3);
|
|
if (LOGFILE)
|
|
fclose(LOGFILE);
|
|
exit(0);
|
|
}
|
|
|
|
FD_ZERO(&input_mask);
|
|
|
|
maxsock = -1;
|
|
min_usec = -1;
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
Command **commands = sql_files[state[i].use_file];
|
|
|
|
if (state[i].sleeping)
|
|
{
|
|
int this_usec;
|
|
int sock = PQsocket(state[i].con);
|
|
|
|
if (min_usec < 0)
|
|
{
|
|
gettimeofday(&now, NULL);
|
|
min_usec = 0;
|
|
}
|
|
|
|
this_usec = (state[i].until.tv_sec - now.tv_sec) * 1000000 +
|
|
state[i].until.tv_usec - now.tv_usec;
|
|
|
|
if (this_usec > 0 && (min_usec == 0 || this_usec < min_usec))
|
|
min_usec = this_usec;
|
|
|
|
FD_SET(sock, &input_mask);
|
|
if (maxsock < sock)
|
|
maxsock = sock;
|
|
}
|
|
else if (state[i].con && commands[state[i].state]->type != META_COMMAND)
|
|
{
|
|
int sock = PQsocket(state[i].con);
|
|
|
|
if (sock < 0)
|
|
{
|
|
disconnect_all(state);
|
|
exit(1);
|
|
}
|
|
FD_SET(sock, &input_mask);
|
|
if (maxsock < sock)
|
|
maxsock = sock;
|
|
}
|
|
}
|
|
|
|
if (maxsock != -1)
|
|
{
|
|
if (min_usec >= 0)
|
|
{
|
|
timeout.tv_sec = min_usec / 1000000;
|
|
timeout.tv_usec = min_usec % 1000000;
|
|
|
|
nsocks = select(maxsock + 1, &input_mask, (fd_set *) NULL,
|
|
(fd_set *) NULL, &timeout);
|
|
}
|
|
else
|
|
nsocks = select(maxsock + 1, &input_mask, (fd_set *) NULL,
|
|
(fd_set *) NULL, (struct timeval *) NULL);
|
|
if (nsocks < 0)
|
|
{
|
|
if (errno == EINTR)
|
|
continue;
|
|
/* must be something wrong */
|
|
disconnect_all(state);
|
|
fprintf(stderr, "select failed: %s\n", strerror(errno));
|
|
exit(1);
|
|
}
|
|
#ifdef NOT_USED
|
|
else if (nsocks == 0)
|
|
{ /* timeout */
|
|
fprintf(stderr, "select timeout\n");
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
fprintf(stderr, "client %d:state %d cnt %d ecnt %d listen %d\n",
|
|
i, state[i].state, state[i].cnt, state[i].ecnt, state[i].listen);
|
|
}
|
|
exit(0);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* ok, backend returns reply */
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
Command **commands = sql_files[state[i].use_file];
|
|
int prev_ecnt = state[i].ecnt;
|
|
|
|
if (state[i].con && (FD_ISSET(PQsocket(state[i].con), &input_mask)
|
|
|| commands[state[i].state]->type == META_COMMAND))
|
|
{
|
|
doCustom(state, i, debug);
|
|
}
|
|
|
|
if (state[i].ecnt > prev_ecnt && commands[state[i].state]->type == META_COMMAND)
|
|
{
|
|
fprintf(stderr, "Client %d aborted in state %d. Execution meta-command failed.\n", i, state[i].state);
|
|
remains--; /* I've aborted */
|
|
PQfinish(state[i].con);
|
|
state[i].con = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|