xwords/xwords4/relay/dbmgr.cpp

1336 lines
40 KiB
C++

/* -*- compile-command: "make -k -j3"; -*- */
/*
* Copyright 2010-2012 by Eric House (xwords@eehouse.org). All rights
* reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <glib.h>
#include "dbmgr.h"
#include "strwpf.h"
#include "mlock.h"
#include "configs.h"
#include "xwrelay_priv.h"
#define GAMES_TABLE "games"
#define MSGS_TABLE "msgs"
#define DEVICES_TABLE "devices"
#define ARRAYSUM "sum_array(nPerDevice)"
static DBMgr* s_instance = NULL;
#define MAX_NUM_PLAYERS 4
static int here_less_seed( const char* seeds, int perDeviceSum,
unsigned short seed );
static void destr_function( void* conn );
/* static */ DBMgr*
DBMgr::Get()
{
if ( s_instance == NULL ) {
s_instance = new DBMgr();
}
return s_instance;
} /* Get */
DBMgr::DBMgr()
{
int tmp;
RelayConfigs::GetConfigs()->GetValueFor( "USE_B64", &tmp );
m_useB64 = tmp != 0;
logf( XW_LOGINFO, "%s: m_useB64=%d", __func__, m_useB64 );
pthread_key_create( &m_conn_key, destr_function );
pthread_mutex_init( &m_haveNoMessagesMutex, NULL );
/* Now figure out what the largest cid currently is. There must be a way
to get postgres to do this for me.... */
/* const char* query = "SELECT cid FROM games ORDER BY cid DESC LIMIT 1"; */
/* PGresult* result = PQexec( m_pgconn, query ); */
/* if ( 0 == PQntuples( result ) ) { */
/* m_nextCID = 1; */
/* } else { */
/* char* value = PQgetvalue( result, 0, 0 ); */
/* m_nextCID = 1 + atoi( value ); */
/* } */
/* PQclear(result); */
/* logf( XW_LOGINFO, "%s: m_nextCID=%d", __func__, m_nextCID ); */
// I've seen rand returning the same series several times....
srand( time( NULL ) );
}
DBMgr::~DBMgr()
{
assert( s_instance == this );
s_instance = NULL;
int err = pthread_key_delete( m_conn_key );
logf( XW_LOGINFO, "%s: pthread_key_delete=>%d", __func__, err );
}
void
DBMgr::AddNew( const char* cookie, const char* connName, CookieID cid,
int langCode, int nPlayersT, bool isPublic )
{
if ( !cookie ) cookie = "";
if ( !connName ) connName = "";
QueryBuilder qb;
qb.appendQueryf( "INSERT INTO " GAMES_TABLE
" (cid, room, connName, nTotal, lang, pub)"
" VALUES( $$, $$, $$, $$, $$, $$ )" )
.appendParam(cid)
.appendParam(cookie)
.appendParam(connName)
.appendParam(nPlayersT)
.appendParam(langCode)
.appendParam(isPublic?"TRUE":"FALSE" )
.finish();
PGresult* result = PQexecParams( getThreadConn(), qb.c_str(),
qb.paramCount(), NULL,
qb.paramValues(),
NULL, NULL, 0 );
if ( PGRES_COMMAND_OK != PQresultStatus(result) ) {
logf( XW_LOGERROR, "PQexec=>%s;%s", PQresStatus(PQresultStatus(result)),
PQresultErrorMessage(result) );
}
PQclear( result );
}
/* Grab the row for a connname. If the params don't check out, return false.
*/
bool
DBMgr::FindGameFor( const char* connName, char* cookieBuf, int bufLen,
unsigned short seed, HostID hid,
int nPlayersH, int nPlayersS,
int* langP, bool* isDead, CookieID* cidp )
{
bool found = false;
const char* fmt = "SELECT cid, room, lang, nPerDevice, dead FROM "
GAMES_TABLE " WHERE connName = '%s' AND nTotal = %d "
"AND %d = seeds[%d] AND 'A' = ack[%d] "
;
StrWPF query;
query.catf( fmt, connName, nPlayersS, seed, hid, hid );
logf( XW_LOGINFO, "query: %s", query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
assert( 1 >= PQntuples( result ) );
found = 1 == PQntuples( result );
if ( found ) {
*cidp = atoi( PQgetvalue( result, 0, 0 ) );
snprintf( cookieBuf, bufLen, "%s", PQgetvalue( result, 0, 1 ) );
*langP = atoi( PQgetvalue( result, 0, 2 ) );
*isDead = 't' == PQgetvalue( result, 0, 4 )[0];
}
PQclear( result );
logf( XW_LOGINFO, "%s(%s)=>%d", __func__, connName, found );
return found;
} /* FindGameFor */
CookieID
DBMgr::FindGame( const char* connName, char* cookieBuf, int bufLen,
int* langP, int* nPlayersTP, int* nPlayersHP, bool* isDead )
{
CookieID cid = 0;
const char* fmt = "SELECT cid, room, lang, nTotal, nPerDevice, dead FROM "
GAMES_TABLE " WHERE connName = '%s'"
// " LIMIT 1"
;
StrWPF query;
query.catf( fmt, connName );
logf( XW_LOGINFO, "query: %s", query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
assert( 1 >= PQntuples( result ) );
if ( 1 == PQntuples( result ) ) {
cid = atoi( PQgetvalue( result, 0, 0 ) );
snprintf( cookieBuf, bufLen, "%s", PQgetvalue( result, 0, 1 ) );
*langP = atoi( PQgetvalue( result, 0, 2 ) );
*nPlayersTP = atoi( PQgetvalue( result, 0, 3 ) );
*nPlayersHP = atoi( PQgetvalue( result, 0, 4 ) );
*isDead = 't' == PQgetvalue( result, 0, 5 )[0];
}
PQclear( result );
logf( XW_LOGINFO, "%s(%s)=>%d", __func__, connName, cid );
return cid;
} /* FindGame */
bool
DBMgr::FindPlayer( DevIDRelay relayID, AddrInfo::ClientToken token,
string& connName, HostID* hidp, unsigned short* seed )
{
int nSuccesses = 0;
const char* fmt =
"SELECT connName FROM %s WHERE %d = ANY(devids) AND %d = ANY(tokens)";
StrWPF query;
query.catf( fmt, GAMES_TABLE, relayID, token );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
int nTuples = PQntuples( result );
vector<string> names(nTuples);
for ( int ii = 0; ii < nTuples; ++ii ) {
string name( PQgetvalue( result, ii, 0 ) );
names.push_back( name );
}
PQclear( result );
for ( vector<string>::const_iterator iter = names.begin();
iter != names.end(); ++iter ) {
const char* name = iter->c_str();
for ( HostID hid = 1; hid <= MAX_NUM_PLAYERS; ++hid ) {
fmt = "SELECT seeds[%d] FROM %s WHERE connname = '%s' "
"AND devids[%d] = %d AND tokens[%d] = %d";
StrWPF query;
query.catf( fmt, hid, GAMES_TABLE, name,
hid, relayID, hid, token );
result = PQexec( getThreadConn(), query.c_str() );
int nTuples2 = PQntuples( result );
for ( int jj = 0; jj < nTuples2; ++jj ) {
connName = name;
*hidp = hid;
*seed = atoi( PQgetvalue( result, 0, 0 ) );
++nSuccesses;
}
PQclear( result );
}
}
if ( 1 < nSuccesses ) {
logf( XW_LOGERROR, "%s found %d matches!!!", __func__, nSuccesses );
}
return nSuccesses >= 1;
} // FindPlayer
bool
DBMgr::FindRelayIDFor( const char* connName, HostID hid,
unsigned short seed, const DevID* host,
DevIDRelay* devIDP )
{
DevIDRelay devID = DEVID_NONE;
StrWPF query;
query.catf( "SELECT devids[%d] FROM " GAMES_TABLE " WHERE "
"connname = '%s' AND seeds[%d] = %d", hid,
connName, hid, seed );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
int nTuples = PQntuples( result );
assert( nTuples <= 1 );
bool found = nTuples == 1;
if ( found ) {
devID = (DevIDRelay)strtoul( PQgetvalue( result, 0, 0 ), NULL, 10 );
*devIDP = devID;
ReregisterDevice( devID, host, NULL, 0, NULL, NULL );
}
PQclear( result );
if ( !found ) {
logf( XW_LOGERROR, "%s: relayid not found for slot %d of %s)",
__func__, hid, connName );
}
return found;
}
bool
DBMgr::SeenSeed( const char* cookie, unsigned short seed,
int langCode, int nPlayersT, bool wantsPublic,
char* connNameBuf, int bufLen, int* nPlayersHP,
CookieID* cid )
{
QueryBuilder qb;
qb.appendQueryf( "SELECT cid, connName, seeds, sum_array(nPerDevice) FROM "
GAMES_TABLE
" WHERE NOT dead"
" AND room ILIKE $$"
" AND lang = $$"
" AND nTotal = $$"
" AND $$ = ANY(seeds)"
" AND $$ = pub"
" ORDER BY ctime DESC"
" LIMIT 1")
.appendParam(cookie)
.appendParam(langCode)
.appendParam(nPlayersT)
.appendParam(seed)
.appendParam(wantsPublic?"TRUE":"FALSE" )
.finish();
PGresult* result = PQexecParams( getThreadConn(), qb.c_str(),
qb.paramCount(), NULL,
qb.paramValues(),
NULL, NULL, 0 );
bool found = 1 == PQntuples( result );
if ( found ) {
*cid = atoi( PQgetvalue( result, 0, 0 ) );
*nPlayersHP = here_less_seed( PQgetvalue( result, 0, 2 ),
atoi( PQgetvalue( result, 0, 3 ) ),
seed );
snprintf( connNameBuf, bufLen, "%s", PQgetvalue( result, 0, 1 ) );
}
PQclear( result );
logf( XW_LOGINFO, "%s(%4X)=>%s", __func__, seed, found?"true":"false" );
return found;
}
CookieID
DBMgr::FindOpen( const char* cookie, int lang, int nPlayersT, int nPlayersH,
bool wantsPublic, char* connNameBuf, int bufLen,
int* nPlayersHP )
{
QueryBuilder qb;
qb.appendQueryf("SELECT cid, connName, sum_array(nPerDevice) FROM "
GAMES_TABLE
" WHERE NOT dead"
" AND room ILIKE $$"
" AND lang = $$"
" AND nTotal = $$"
" AND $$ <= nTotal-sum_array(nPerDevice)"
" AND $$ = pub"
" LIMIT 1")
.appendParam(cookie)
.appendParam(lang)
.appendParam(nPlayersT)
.appendParam(nPlayersH)
.appendParam(wantsPublic?"TRUE":"FALSE" )
.finish();
PGresult* result = PQexecParams( getThreadConn(), qb.c_str(),
qb.paramCount(), NULL,
qb.paramValues(),
NULL, NULL, 0 );
CookieID cid = 0;
if ( 1 == PQntuples( result ) ) {
cid = atoi( PQgetvalue( result, 0, 0 ) );
snprintf( connNameBuf, bufLen, "%s", PQgetvalue( result, 0, 1 ) );
*nPlayersHP = atoi( PQgetvalue( result, 0, 2 ) );
/* cid may be 0, but should use game anyway */
}
PQclear( result );
logf( XW_LOGINFO, "%s=>%d", __func__, cid );
return cid;
} /* FindOpen */
bool
DBMgr::AllDevsAckd( const char* const connName )
{
const char* cmd = "SELECT ntotal=sum_array(nperdevice) AND 'A'=ALL(ack) from " GAMES_TABLE
" WHERE connName='%s'";
StrWPF query;
query.catf( cmd, connName );
logf( XW_LOGINFO, "query: %s", query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
int nTuples = PQntuples( result );
assert( nTuples <= 1 );
bool full = nTuples == 1 && 't' == PQgetvalue( result, 0, 0 )[0];
PQclear( result );
return full;
}
// Return DevIDRelay for device, adding it to devices table IFF it's not
// already there.
DevIDRelay
DBMgr::RegisterDevice( const DevID* host, int clientVersion,
const char* const desc, const char* const model,
const char* const osVers )
{
DevIDRelay devID;
assert( host->m_devIDType != ID_TYPE_NONE );
int ii;
bool success;
// if it's already present, just return
devID = getDevID( host );
// If it's not present *and* of type ID_TYPE_RELAY, we can do nothing.
// Otherwise proceed.
if ( DEVID_NONE != devID ) {
(void)UpdateDevice( devID );
} else if ( ID_TYPE_RELAY < host->m_devIDType ) {
// loop until we're successful inserting the unique key. Ship with this
// coming from random, but test with increasing values initially to make
// sure duplicates are detected.
const char* devidStr = host->m_devIDString.c_str();
for ( success = false, ii = 0; !success; ++ii ) {
assert( 10 > ii ); // better to check that we're looping BECAUSE
// of uniqueness problem.
do {
devID = (DevIDRelay)random();
} while ( DEVID_NONE == devID );
QueryBuilder qb;
qb.appendQueryf( "INSERT INTO " DEVICES_TABLE " (id, devTypes[1],"
" devids[1], clntVers, versdesc, model, osvers)"
" VALUES($$, $$, $$, $$, $$, $$, $$)" );
qb.appendParam( devID )
.appendParam( host->m_devIDType )
.appendParam( devidStr )
.appendParam( clientVersion )
.appendParam( desc )
.appendParam( model )
.appendParam( osVers )
.finish();
success = execParams( qb );
}
}
return devID;
} // RegisterDevice
DevIDRelay
DBMgr::RegisterDevice( const DevID* host )
{
return RegisterDevice( host, 0, NULL, NULL, NULL );
}
void
DBMgr::ReregisterDevice( DevIDRelay relayID, const DevID* host,
const char* const desc, int clientVersion,
const char* const model, const char* const osVers )
{
QueryBuilder qb;
qb.appendQueryf( "UPDATE " DEVICES_TABLE " SET "
"devTypes = array_prepend($$, devTypes), "
"devids = array_prepend($$, devids), " )
.appendParam( host->m_devIDType )
.appendParam( host->m_devIDString.c_str() );
formatUpdate( qb, true, desc, clientVersion, model, osVers, relayID );
qb.finish();
execParams( qb );
}
// Return true if the relayID exists in the DB already
bool
DBMgr::UpdateDevice( DevIDRelay relayID, const char* const desc,
int clientVersion, const char* const model,
const char* const osVers, bool check )
{
bool exists = !check;
if ( !exists ) {
StrWPF test;
test.catf( "id = %d", relayID );
exists = 1 <= getCountWhere( DEVICES_TABLE, test );
}
if ( exists ) {
QueryBuilder qb;
qb.appendQueryf( "UPDATE " DEVICES_TABLE " SET " );
formatUpdate( qb, false, desc, clientVersion, model, osVers, relayID );
qb.finish();
execParams( qb );
}
return exists;
}
bool
DBMgr::UpdateDevice( DevIDRelay relayID )
{
return UpdateDevice( relayID, NULL, 0, NULL, NULL, false );
}
void
DBMgr::formatUpdate( QueryBuilder& qb,
bool append, const char* const desc,
int clientVersion, const char* const model,
const char* const osVers, DevIDRelay relayID )
{
if ( append ) {
qb.appendQueryf( "mtimes=array_prepend('now', mtimes)" ); // FIXME: too many
} else {
qb.appendQueryf( "mtimes[1]='now'" );
}
if ( NULL != desc && '\0' != desc[0] ) {
qb.appendQueryf( ", clntVers=$$" )
.appendParam( clientVersion )
.appendQueryf( ", versDesc=$$" )
.appendParam( desc );
}
if ( NULL != model && '\0' != model[0] ) {
qb.appendQueryf( ", model=$$" )
.appendParam( model );
}
if ( NULL != osVers && '\0' != osVers[0] ) {
qb.appendQueryf( ", osvers=$$" )
.appendParam( osVers );
}
qb.appendQueryf( " WHERE id = $$" )
.appendParam( relayID );
}
HostID
DBMgr::AddToGame( const char* connName, HostID curID, int clientVersion,
int nToAdd, unsigned short seed, const AddrInfo* addr,
DevIDRelay devID, bool ackd )
{
HostID newID = curID;
if ( newID == HOST_ID_NONE ) {
int ackArr[4] = {0};
int seedArr[4] = {0};
readArray( connName, "nPerDevice", ackArr );
readArray( connName, "seeds", seedArr );
// If our seed's already there, grab that slot. Otherwise grab the
// first empty one.
HostID firstEmpty = HOST_ID_NONE;
for ( newID = HOST_ID_SERVER; newID <= 4; ++newID ) {
if ( seedArr[newID-1] == seed ) {
break;
} else if ( HOST_ID_NONE == firstEmpty && 0 == ackArr[newID-1] ) {
firstEmpty = newID;
}
}
if ( 4 < newID && HOST_ID_NONE != firstEmpty ) {
newID = firstEmpty;
}
logf( XW_LOGINFO, "%s: set newID = %d", __func__, newID );
}
assert( newID <= 4 );
StrWPF query;
query.catf( "UPDATE " GAMES_TABLE " SET nPerDevice[%d] = %d,"
" clntVers[%d] = %d, seeds[%d] = %d, addrs[%d] = \'%s\', ",
newID, nToAdd, newID, clientVersion, newID, seed, newID,
inet_ntoa( addr->sin_addr() ) );
if ( DEVID_NONE != devID ) {
query.catf( "devids[%d] = %d, ", newID, devID );
}
query.catf( " tokens[%d] = %d, mtimes[%d]='now', ack[%d]=\'%c\'"
" WHERE connName = '%s'", newID, addr->clientToken(),
newID, newID, ackd?'A':'a', connName );
// Update the devices table too. Eventually the clntVers field of the
// games table should go away.
if ( DEVID_NONE != devID ) {
query.catf( "; UPDATE " DEVICES_TABLE " SET clntVers = %d"
" WHERE id = %d", clientVersion, devID );
}
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
return newID;
} /* AddToGame */
void
DBMgr::NoteAckd( const char* const connName, HostID id )
{
const char* fmt = "UPDATE " GAMES_TABLE " SET ack[%d]='A'"
" WHERE connName = '%s'";
StrWPF query;
query.catf( fmt, id, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
bool
DBMgr::RmDeviceByHid( const char* connName, HostID hid )
{
const char* fmt = "UPDATE " GAMES_TABLE " SET nPerDevice[%d] = 0, "
"seeds[%d] = 0, ack[%d]='-', mtimes[%d]='now' WHERE connName = '%s'";
StrWPF query;
query.catf( fmt, hid, hid, hid, hid, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
return execSql( query );
}
HostID
DBMgr::HIDForSeed( const char* const connName, unsigned short seed )
{
HostID hid = HOST_ID_NONE;
char seeds[128] = {0};
const char* fmt = "SELECT seeds FROM " GAMES_TABLE
" WHERE connName = '%s'"
" AND %d = ANY(seeds)";
StrWPF query;
query.catf( fmt, connName, seed );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
if ( 1 == PQntuples( result ) ) {
snprintf( seeds, sizeof(seeds), "%s", PQgetvalue( result, 0, 0 ) );
}
PQclear( result );
if ( 0 != seeds[0] ) {
char *saveptr = NULL;
int ii;
char* str;
for ( str = seeds, ii = 0; ; str = NULL, ++ii ) {
char* tok = strtok_r( str, "{},", &saveptr );
if ( NULL == tok ) {
break;
} else {
int asint = atoi( tok );
if ( asint == seed ) {
hid = ii + 1;
break;
}
}
}
} else {
assert(0); /* but don't ship with this!!!! */
}
return hid;
}
void
DBMgr::RmDeviceBySeed( const char* const connName, unsigned short seed )
{
HostID hid = HIDForSeed( connName, seed );
if ( hid != HOST_ID_NONE ) {
RmDeviceByHid( connName, hid );
}
} /* RmDeviceSeed */
bool
DBMgr::HaveDevice( const char* connName, HostID hid, int seed )
{
bool found = false;
const char* fmt = "SELECT * from " GAMES_TABLE
" WHERE connName = '%s' AND seeds[%d] = %d";
StrWPF query;
query.catf( fmt, connName, hid, seed );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
found = 1 == PQntuples( result );
PQclear( result );
return found;
}
bool
DBMgr::AddCID( const char* const connName, CookieID cid )
{
const char* fmt = "UPDATE " GAMES_TABLE " SET cid = %d "
" WHERE connName = '%s' AND cid IS NULL";
StrWPF query;
query.catf( fmt, cid, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
bool result = execSql( query );
logf( XW_LOGINFO, "%s(cid=%d)=>%d", __func__, cid, result );
return result;
}
void
DBMgr::ClearCID( const char* connName )
{
const char* fmt = "UPDATE " GAMES_TABLE " SET cid = null "
"WHERE connName = '%s'";
StrWPF query;
query.catf( fmt, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
void
DBMgr::RecordSent( const char* const connName, HostID hid, int nBytes )
{
assert( hid >= 0 && hid <= 4 );
const char* fmt = "UPDATE " GAMES_TABLE " SET"
" nsents[%d] = nsents[%d] + %d, mtimes[%d] = 'now'"
" WHERE connName = '%s'";
StrWPF query;
query.catf( fmt, hid, hid, nBytes, hid, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
void
DBMgr::RecordSent( const int* msgIDs, int nMsgIDs )
{
if ( nMsgIDs > 0 ) {
StrWPF query;
query.catf( "SELECT connname,hid,sum(msglen)"
" FROM " MSGS_TABLE " WHERE id IN (" );
for ( int ii = 0; ; ) {
query.catf( "%d", msgIDs[ii] );
if ( ++ii == nMsgIDs ) {
break;
} else {
query.append( "," );
}
}
query.append( ") GROUP BY connname,hid" );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
if ( PGRES_TUPLES_OK == PQresultStatus( result ) ) {
int ntuples = PQntuples( result );
for ( int ii = 0; ii < ntuples; ++ii ) {
RecordSent( PQgetvalue( result, ii, 0 ),
atoi( PQgetvalue( result, ii, 1 ) ),
atoi( PQgetvalue( result, ii, 2 ) ) );
}
}
PQclear( result );
}
}
void
DBMgr::RecordAddress( const char* const connName, HostID hid,
const AddrInfo* addr )
{
assert( hid >= 0 && hid <= 4 );
const char* fmt = "UPDATE " GAMES_TABLE " SET addrs[%d] = \'%s\'"
" WHERE connName = '%s'";
StrWPF query;
char* ntoa = inet_ntoa( addr->sin_addr() );
query.catf( fmt, hid, ntoa, connName );
logf( XW_LOGVERBOSE0, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
void
DBMgr::GetPlayerCounts( const char* const connName, int* nTotal, int* nHere )
{
const char* fmt = "SELECT ntotal, sum_array(nperdevice) FROM " GAMES_TABLE
" WHERE connName = '%s'";
StrWPF query;
query.catf( fmt, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
assert( 1 == PQntuples( result ) );
*nTotal = atoi( PQgetvalue( result, 0, 0 ) );
*nHere = atoi( PQgetvalue( result, 0, 1 ) );
PQclear( result );
}
void
DBMgr::KillGame( const char* const connName, int hid )
{
const char* fmt = "UPDATE " GAMES_TABLE " SET dead = TRUE,"
" nperdevice[%d] = - nperdevice[%d]"
" WHERE connName = '%s'";
StrWPF query;
query.catf( fmt, hid, hid, connName );
execSql( query );
}
void
DBMgr::ClearCIDs( void )
{
execSql( "UPDATE " GAMES_TABLE " set cid = null" );
}
void
DBMgr::PublicRooms( int lang, int nPlayers, int* nNames, string& names )
{
const char* fmt = "SELECT room, nTotal-sum_array(nPerDevice),"
" round( extract( epoch from age('now', ctime)))"
" FROM " GAMES_TABLE
" WHERE NOT dead"
" AND pub = TRUE"
" AND lang = %d"
" AND nTotal>sum_array(nPerDevice)"
" AND nTotal = %d";
StrWPF query;
query.catf( fmt, lang, nPlayers );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
int nTuples = PQntuples( result );
for ( int ii = 0; ii < nTuples; ++ii ) {
names.append( PQgetvalue( result, ii, 0 ) );
names.append( "/" );
names.append( PQgetvalue( result, ii, 1 ) );
names.append( "/" );
names.append( PQgetvalue( result, ii, 2 ) );
names.append( "\n" );
}
PQclear( result );
*nNames = nTuples;
}
bool
DBMgr::TokenFor( const char* const connName, int hid, DevIDRelay* devid,
AddrInfo::ClientToken* token )
{
bool found = false;
const char* fmt = "SELECT tokens[%d], devids[%d] FROM " GAMES_TABLE
" WHERE connName='%s'";
StrWPF query;
query.catf( fmt, hid, hid, connName );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
if ( 1 == PQntuples( result ) ) {
AddrInfo::ClientToken token_tmp = atoi( PQgetvalue( result, 0, 0 ) );
DevIDRelay devid_tmp = atoi( PQgetvalue( result, 0, 1 ) );
if ( AddrInfo::NULL_TOKEN != token_tmp && 0 != devid_tmp ) {
*token = token_tmp;
*devid = devid_tmp;
found = true;
}
}
PQclear( result );
if ( found ) {
logf( XW_LOGINFO, "%s(%s,%d)=>true (%d, %d)", __func__, connName, hid,
*devid, *token );
} else {
logf( XW_LOGINFO, "%s(%s,%d)=>false", __func__, connName, hid );
}
return found;
}
bool
DBMgr::execSql( const string& query )
{
return execSql( query.c_str() );
}
bool
DBMgr::execSql( const char* const query )
{
bool ok = false;
for ( int ii = 0; !ok && ii < 3; ++ii ) {
PGresult* result = PQexec( getThreadConn(), query );
ok = PGRES_COMMAND_OK == PQresultStatus(result);
if ( !ok ) {
logf( XW_LOGERROR, "%s(%s): PQexec=>%s;%s", __func__, query,
PQresStatus(PQresultStatus(result)),
PQresultErrorMessage(result) );
clearThreadConn();
usleep( 20000 );
}
PQclear( result );
}
assert( ok );
return ok;
}
bool
DBMgr::execParams( QueryBuilder& qb )
{
PGresult* result = PQexecParams( getThreadConn(), qb.c_str(),
qb.paramCount(), NULL,
qb.paramValues(),
NULL, NULL, 0 );
bool success = PGRES_COMMAND_OK == PQresultStatus( result );
if ( !success ) {
logf( XW_LOGERROR, "PQexecParams(%s)=>%s;%s", qb.c_str(),
PQresStatus(PQresultStatus(result)),
PQresultErrorMessage(result) );
}
return success;
}
void
DBMgr::readArray( const char* const connName, const char* column, int arr[] ) /* len 4 */
{
const char* fmt = "SELECT %s FROM " GAMES_TABLE " WHERE connName='%s'";
StrWPF query;
query.catf( fmt, column, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
assert( 1 == PQntuples( result ) );
const char* arrStr = PQgetvalue( result, 0, 0 );
logf( XW_LOGINFO, "%s: arrStr=\"%s\"", __func__, arrStr );
sscanf( arrStr, "{%d,%d,%d,%d}", &arr[0], &arr[1], &arr[2], &arr[3] );
PQclear( result );
}
DevIDRelay
DBMgr::getDevID( const char* connName, int hid )
{
DevIDRelay devID = DEVID_NONE;
const char* fmt = "SELECT devids[%d] FROM " GAMES_TABLE " WHERE connName='%s'";
StrWPF query;
query.catf( fmt, hid, connName );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
if ( 1 == PQntuples( result ) ) {
devID = (DevIDRelay)strtoul( PQgetvalue( result, 0, 0 ), NULL, 10 );
}
PQclear( result );
return devID;
}
DevIDRelay
DBMgr::getDevID( const DevID* devID )
{
DevIDRelay rDevID = DEVID_NONE;
DevIDType devIDType = devID->m_devIDType;
StrWPF query;
assert( ID_TYPE_NONE < devIDType );
if ( ID_TYPE_RELAY == devIDType ) {
// confirm it's there
DevIDRelay cur = devID->asRelayID();
if ( DEVID_NONE != cur ) {
const char* fmt = "SELECT id FROM " DEVICES_TABLE " WHERE id=%d";
query.catf( fmt, cur );
}
} else if ( 0 < devID->m_devIDString.size() ) {
query.catf( "SELECT id FROM " DEVICES_TABLE
" WHERE devtypes[1]=%d and devids[1] = '%s'"
" ORDER BY ctime DESC LIMIT 1",
devIDType, devID->m_devIDString.c_str() );
}
if ( 0 < query.size() ) {
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
int nTuples = PQntuples( result );
assert( 1 >= nTuples );
if ( 1 == nTuples ) {
rDevID = (DevIDRelay)strtoul( PQgetvalue( result, 0, 0 ), NULL, 10 );
}
PQclear( result );
}
logf( XW_LOGINFO, "%s(in=%s)=>%d (0x%.8X)", __func__,
devID->m_devIDString.c_str(), rDevID, rDevID );
return rDevID;
}
/*
id | connname | hid | msg
----+-----------+-----+---------
1 | abcd:1234 | 2 | xyzzx
2 | abcd:1234 | 2 | xyzzxxx
3 | abcd:1234 | 3 | xyzzxxx
*/
int
DBMgr::CountStoredMessages( const char* const connName, int hid )
{
StrWPF test;
test.catf( "connname = '%s'", connName );
#ifdef HAVE_STIME
test.catf( " AND stime = 'epoch'" );
#endif
if ( hid != -1 ) {
test.catf( " AND hid = %d", hid );
}
return getCountWhere( MSGS_TABLE, test );
}
int
DBMgr::CountStoredMessages( const char* const connName )
{
return CountStoredMessages( connName, -1 );
} /* CountStoredMessages */
int
DBMgr::CountStoredMessages( DevIDRelay relayID )
{
StrWPF test;
test.catf( "devid = %d", relayID );
#ifdef HAVE_STIME
test.catf( "AND stime = 'epoch'" );
#endif
return getCountWhere( MSGS_TABLE, test );
}
void
DBMgr::StoreMessage( DevIDRelay devID, const uint8_t* const buf,
int len )
{
clearHasNoMessages( devID );
size_t newLen;
const char* fmt = "INSERT INTO " MSGS_TABLE " "
"(devid, %s, msglen) VALUES(%d, %s'%s', %d)";
StrWPF query;
if ( m_useB64 ) {
gchar* b64 = g_base64_encode( buf, len );
query.catf( fmt, "msg64", devID, "", b64, len );
g_free( b64 );
} else {
uint8_t* bytes = PQescapeByteaConn( getThreadConn(), buf,
len, &newLen );
assert( NULL != bytes );
query.catf( fmt, "msg", devID, "E", bytes, len );
PQfreemem( bytes );
}
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
void
DBMgr::StoreMessage( const char* const connName, int hid,
const uint8_t* buf, int len )
{
clearHasNoMessages( connName, hid );
DevIDRelay devID = getDevID( connName, hid );
if ( DEVID_NONE == devID ) {
logf( XW_LOGERROR, "%s: warning: devid not found for connName=%s, "
"hid=%d", __func__, connName, hid );
} else {
clearHasNoMessages( devID );
}
size_t newLen;
const char* fmt = "INSERT INTO " MSGS_TABLE " "
"(connname, hid, devid, token, %s, msglen) "
"SELECT '%s', %d, %d, "
"(SELECT tokens[%d] from " GAMES_TABLE " where connname='%s'), "
"%s'%s', %d "
;
StrWPF query;
if ( m_useB64 ) {
gchar* b64 = g_base64_encode( buf, len );
query.catf( fmt, "msg64", connName, hid, devID, hid, connName,
"", b64, len );
query.catf( " WHERE NOT EXISTS (SELECT 1 FROM " MSGS_TABLE
" WHERE connname='%s' AND hid=%d AND msg64='%s'"
#ifdef HAVE_STIME
" AND stime='epoch'"
#endif
" );", connName, hid, b64 );
g_free( b64 );
} else {
uint8_t* bytes = PQescapeByteaConn( getThreadConn(), buf,
len, &newLen );
assert( NULL != bytes );
query.catf( fmt, "msg", connName, hid, devID, hid, connName,
"E", bytes, len );
PQfreemem( bytes );
}
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
void
DBMgr::decodeMessage( PGresult* result, bool useB64, int rowIndx, int b64indx,
int byteaIndex, uint8_t* buf, size_t* buflen )
{
const char* from = NULL;
if ( useB64 ) {
from = PQgetvalue( result, rowIndx, b64indx );
}
if ( NULL == from || '\0' == from[0] ) {
useB64 = false;
from = PQgetvalue( result, rowIndx, byteaIndex );
}
size_t to_length;
if ( useB64 ) {
gsize out_len;
guchar* txt = g_base64_decode( (const gchar*)from, &out_len );
to_length = out_len;
assert( to_length <= *buflen );
memcpy( buf, txt, to_length );
g_free( txt );
} else {
uint8_t* bytes = PQunescapeBytea( (const uint8_t*)from,
&to_length );
assert( to_length <= *buflen );
memcpy( buf, bytes, to_length );
PQfreemem( bytes );
}
*buflen = to_length;
}
void
DBMgr::storedMessagesImpl( string test, vector<DBMgr::MsgInfo>& msgs,
bool nullConnnameOK )
{
StrWPF query;
query.catf( "SELECT id, msg64, msg, msglen, token, connname FROM "
MSGS_TABLE " WHERE %s "
#ifdef HAVE_STIME
" AND stime = 'epoch' "
#endif
" AND (connname IN (SELECT connname FROM " GAMES_TABLE
" WHERE NOT " GAMES_TABLE ".dead)", test.c_str() );
if ( nullConnnameOK ) {
query.catf( " OR connname IS NULL ");
}
query.catf( ") ORDER BY id" );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
int nTuples = PQntuples( result );
for ( int ii = 0; ii < nTuples; ++ii ) {
int id = atoi( PQgetvalue( result, ii, 0 ) );
AddrInfo::ClientToken token = atoi( PQgetvalue( result, ii, 4 ) );
const char* connname = PQgetvalue( result, ii, 5 );
bool hasConnname = connname != NULL && '\0' != connname[0];
MsgInfo msg( id, token, hasConnname );
uint8_t buf[1024];
size_t buflen = sizeof(buf);
decodeMessage( result, m_useB64, ii, 1, 2, buf, &buflen );
size_t msglen = atoi( PQgetvalue( result, ii, 3 ) );
assert( 0 == msglen || buflen == msglen );
msg.msg.insert( msg.msg.end(), buf, &buf[buflen] );
msgs.push_back( msg );
}
PQclear( result );
}
void
DBMgr::GetStoredMessages( DevIDRelay relayID, vector<MsgInfo>& msgs )
{
if ( !hasNoMessages( relayID ) ) {
StrWPF query;
query.catf( "devid=%d", relayID );
storedMessagesImpl( query, msgs, true );
if ( 0 == msgs.size() ) {
setHasNoMessages( relayID );
}
}
}
void
DBMgr::GetStoredMessages( const char* const connName, HostID hid,
vector<DBMgr::MsgInfo>& msgs )
{
if ( !hasNoMessages( connName, hid ) ) {
StrWPF query;
query.catf( "hid = %d AND connname = '%s'", hid, connName );
storedMessagesImpl( query, msgs, false );
if ( 0 == msgs.size() ) {
setHasNoMessages( connName, hid );
}
}
}
void
DBMgr::RemoveStoredMessages( string& msgids )
{
const char* fmt =
#ifdef HAVE_STIME
"UPDATE " MSGS_TABLE " SET stime='now' "
#else
"DELETE FROM " MSGS_TABLE
#endif
" WHERE id IN (%s)";
StrWPF query;
query.catf( fmt, msgids.c_str() );
logf( XW_LOGINFO, "%s: query: %s", __func__, query.c_str() );
execSql( query );
}
void
DBMgr::RemoveStoredMessages( const int* msgIDs, int nMsgIDs )
{
if ( nMsgIDs > 0 ) {
StrWPF ids;
size_t len = 0;
int ii;
for ( ii = 0; ; ) {
ids.catf( "%d", msgIDs[ii] );
assert( len < sizeof(ids) );
if ( ++ii == nMsgIDs ) {
break;
} else {
ids.append( "," );
}
}
RemoveStoredMessages( ids );
}
}
void
DBMgr::RemoveStoredMessages( vector<int>& idv )
{
if ( 0 < idv.size() ) {
StrWPF ids;
vector<int>::const_iterator iter = idv.begin();
for ( ; ; ) {
ids.catf( "%d", *iter );
if ( ++iter == idv.end() ) {
break;
}
ids.catf( "," );
}
RemoveStoredMessages( ids );
}
}
void
DBMgr::RemoveStoredMessage( const int msgID )
{
RemoveStoredMessages( &msgID, 1 );
}
int
DBMgr::getCountWhere( const char* table, string& test )
{
StrWPF query;
query.catf( "SELECT count(*) FROM %s WHERE %s", table, test.c_str() );
PGresult* result = PQexec( getThreadConn(), query.c_str() );
assert( 1 == PQntuples( result ) );
int count = atoi( PQgetvalue( result, 0, 0 ) );
PQclear( result );
return count;
}
void
DBMgr::formatKey( StrWPF& key, const char* const connName, HostID hid )
{
key.catf( "%s:%d", connName, hid );
}
bool
DBMgr::hasNoMessages( const char* const connName, HostID hid )
{
StrWPF key;
formatKey( key, connName, hid );
MutexLock ml( &m_haveNoMessagesMutex );
bool result = m_haveNoMessagesConnname.find(key) != m_haveNoMessagesConnname.end();
return result;
}
void
DBMgr::setHasNoMessages( const char* const connName, HostID hid )
{
StrWPF key;
formatKey( key, connName, hid );
{
MutexLock ml( &m_haveNoMessagesMutex );
m_haveNoMessagesConnname.insert( key );
}
assert( hasNoMessages( connName, hid ) );
}
void
DBMgr::clearHasNoMessages( const char* const connName, HostID hid )
{
StrWPF key;
formatKey( key, connName, hid );
{
MutexLock ml( &m_haveNoMessagesMutex );
m_haveNoMessagesConnname.erase( key );
}
assert( !hasNoMessages( connName, hid ) );
}
bool DBMgr::hasNoMessages( DevIDRelay devid )
{
MutexLock ml( &m_haveNoMessagesMutex );
bool result = m_haveNoMessagesDevID.find(devid) != m_haveNoMessagesDevID.end();
return result;
}
void DBMgr::setHasNoMessages( DevIDRelay devid )
{
{
MutexLock ml( &m_haveNoMessagesMutex );
m_haveNoMessagesDevID.insert( devid );
}
assert( hasNoMessages( devid ) );
}
void DBMgr::clearHasNoMessages( DevIDRelay devid )
{
{
MutexLock ml( &m_haveNoMessagesMutex );
m_haveNoMessagesDevID.erase( devid );
}
assert( !hasNoMessages( devid ) );
}
static int
here_less_seed( const char* seeds, int sumPerDevice, unsigned short seed )
{
logf( XW_LOGINFO, "%s: find %x(%d) in \"%s\", sub from \"%d\"", __func__,
seed, seed, seeds, sumPerDevice );
return sumPerDevice - 1; /* FIXME */
}
static void
destr_function( void* conn )
{
logf( XW_LOGINFO, "%s()", __func__ );
PGconn* pgconn = (PGconn*)conn;
PQfinish( pgconn );
}
void
DBMgr::clearThreadConn()
{
logf( XW_LOGERROR, "%s called()", __func__ );
PGconn* conn = (PGconn*)pthread_getspecific( m_conn_key );
if ( NULL != conn ) {
PQfinish( conn );
int result = pthread_setspecific( m_conn_key, NULL );
assert( 0 == result );
}
}
PGconn*
DBMgr::getThreadConn( void )
{
PGconn* conn = (PGconn*)pthread_getspecific( m_conn_key );
if ( NULL == conn ) {
char buf[128];
int port;
if ( !RelayConfigs::GetConfigs()->GetValueFor( "DB_NAME", buf,
sizeof(buf) ) ) {
assert( 0 );
}
if ( !RelayConfigs::GetConfigs()->GetValueFor( "DB_PORT", &port ) ) {
assert( 0 );
}
StrWPF params;
params.catf( "dbname = %s ", buf );
params.catf( "port = %d ", port );
conn = PQconnectdb( params.c_str() );
pthread_setspecific( m_conn_key, conn );
}
return conn;
}