本文整理汇总了C++中LastError类的典型用法代码示例。如果您正苦于以下问题：C++ LastError类的具体用法？C++ LastError怎么用？C++ LastError使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了LastError类的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: run
bool run(OperationContext* txn, const string& dbname, BSONObj& cmdObj, int, string& errmsg, BSONObjBuilder& result, bool fromRepl) {
LastError *le = lastError.disableForCommand();
le->appendSelf( result );
if ( le->valid )
result.append( "nPrev", le->nPrev );
else
result.append( "nPrev", -1 );
return true;
}示例2: run
bool run(OperationContext* txn,
const string& db,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result,
bool fromRepl) {
LastError* le = lastError.get();
verify(le);
le->reset();
return true;
}示例3: run
bool run(OperationContext* txn,
const string& dbname,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result) {
LastError *le = &LastError::get(txn->getClient());
le->disable();
le->appendSelf(result, true);
if (le->isValid())
result.append("nPrev", le->getNPrev());
else
result.append("nPrev", -1);
return true;
}示例4: run
bool run(const string& dbname, BSONObj& _cmdObj, int, string& errmsg, BSONObjBuilder& result, bool fromRepl) {
LastError *le = lastError.disableForCommand();
if ( le->nPrev != 1 ) {
LastError::noError.appendSelf( result , false );
le->appendSelfStatus( result );
}
else {
le->appendSelf( result , false );
}
Client& c = cc();
c.appendLastOp( result );
result.appendNumber( "connectionId" , c.getConnectionId() ); // for sharding; also useful in general for debugging
BSONObj cmdObj = _cmdObj;
{
BSONObj::iterator i(_cmdObj);
i.next();
if( !i.more() ) {
/* empty, use default */
BSONObj *def = getLastErrorDefault;
if( def )
cmdObj = *def;
}
}
WriteConcernOptions writeConcern;
Status status = writeConcern.parse( cmdObj );
if ( !status.isOK() ) {
result.append( "badGLE", cmdObj );
errmsg = status.toString();
return false;
}
WriteConcernResult res;
status = waitForWriteConcern( cc(), writeConcern, &res );
res.appendTo( &result );
if ( status.code() == ErrorCodes::WriteConcernLegacyOK ) {
result.append( "wnote", status.toString() );
return true;
}
return appendCommandStatus( result, status );
}示例5: request
bool ClusterWriteCmd::run( const string& dbName,
BSONObj& cmdObj,
int options,
string& errMsg,
BSONObjBuilder& result,
bool ) {
BatchedCommandRequest request( _writeType );
BatchedCommandResponse response;
// TODO: if we do namespace parsing, push this to the type
if ( !request.parseBSON( cmdObj, &errMsg ) || !request.isValid( &errMsg ) ) {
// Batch parse failure
response.setOk( false );
response.setErrCode( ErrorCodes::FailedToParse );
response.setErrMessage( errMsg );
dassert( response.isValid( &errMsg ) );
}
else {
// Fixup the namespace to be a full ns internally
NamespaceString nss( dbName, request.getNS() );
request.setNS( nss.ns() );
clusterWrite( request, &response, true /* autosplit */ );
}
// Populate the lastError object based on the write
dassert( response.isValid( NULL ) );
LastError* lastErrorForRequest = lastError.get( true /* create */ );
dassert( lastErrorForRequest );
lastErrorForRequest->reset();
batchErrorToLastError( request, response, lastErrorForRequest );
// TODO
// There's a pending issue about how to report response here. If we use
// the command infra-structure, we should reuse the 'errmsg' field. But
// we have already filed that message inside the BatchCommandResponse.
// return response.getOk();
result.appendElements( response.toBSON() );
return true;
}示例6: process
virtual void process( Message& m , AbstractMessagingPort* p ){
assert( p );
Request r( m , p );
LastError * le = lastError.startRequest( m , r.getClientId() );
assert( le );
if ( logLevel > 5 ){
log(5) << "client id: " << hex << r.getClientId() << "\t" << r.getns() << "\t" << dec << r.op() << endl;
}
try {
r.init();
setClientId( r.getClientId() );
r.process();
}
catch ( AssertionException & e ){
log( e.isUserAssertion() ? 1 : 0 ) << "AssertionException in process: " << e.what() << endl;
le->raiseError( e.getCode() , e.what() );
m.header()->id = r.id();
if ( r.expectResponse() ){
BSONObj err = BSON( "$err" << e.what() << "code" << e.getCode() );
replyToQuery( ResultFlag_ErrSet, p , m , err );
}
}
catch ( DBException& e ){
log() << "DBException in process: " << e.what() << endl;
le->raiseError( e.getCode() , e.what() );
m.header()->id = r.id();
if ( r.expectResponse() ){
BSONObj err = BSON( "$err" << e.what() << "code" << e.getCode() );
replyToQuery( ResultFlag_ErrSet, p , m , err );
}
}
}示例7: run
virtual bool run(const string& dbName, BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool) {
LastError *le = lastError.disableForCommand();
{
assert( le );
if ( le->msg.size() && le->nPrev == 1 ){
le->appendSelf( result );
return true;
}
}
ClientInfo * client = ClientInfo::get();
set<string> * shards = client->getPrev();
if ( shards->size() == 0 ){
result.appendNull( "err" );
return true;
}
//log() << "getlasterror enter: " << shards->size() << endl;
vector<OID> writebacks;
// handle single server
if ( shards->size() == 1 ){
string theShard = *(shards->begin() );
result.append( "theshard" , theShard.c_str() );
ShardConnection conn( theShard , "" );
BSONObj res;
bool ok = conn->runCommand( dbName , cmdObj , res );
//log() << "\t" << res << endl;
result.appendElements( res );
conn.done();
result.append( "singleShard" , theShard );
addWriteBack( writebacks , res );
// hit other machines just to block
for ( set<string>::const_iterator i=client->sinceLastGetError().begin(); i!=client->sinceLastGetError().end(); ++i ){
string temp = *i;
if ( temp == theShard )
continue;
ShardConnection conn( temp , "" );
addWriteBack( writebacks , conn->getLastErrorDetailed() );
conn.done();
}
client->clearSinceLastGetError();
handleWriteBacks( writebacks );
return ok;
}
BSONArrayBuilder bbb( result.subarrayStart( "shards" ) );
long long n = 0;
// hit each shard
vector<string> errors;
vector<BSONObj> errorObjects;
for ( set<string>::iterator i = shards->begin(); i != shards->end(); i++ ){
string theShard = *i;
bbb.append( theShard );
ShardConnection conn( theShard , "" );
BSONObj res;
bool ok = conn->runCommand( dbName , cmdObj , res );
addWriteBack( writebacks, res );
string temp = DBClientWithCommands::getLastErrorString( res );
if ( ok == false || temp.size() ){
errors.push_back( temp );
errorObjects.push_back( res );
}
n += res["n"].numberLong();
conn.done();
}
bbb.done();
result.appendNumber( "n" , n );
// hit other machines just to block
for ( set<string>::const_iterator i=client->sinceLastGetError().begin(); i!=client->sinceLastGetError().end(); ++i ){
string temp = *i;
if ( shards->count( temp ) )
continue;
ShardConnection conn( temp , "" );
addWriteBack( writebacks, conn->getLastErrorDetailed() );
conn.done();
}
client->clearSinceLastGetError();
if ( errors.size() == 0 ){
result.appendNull( "err" );
handleWriteBacks( writebacks );
return true;
}
result.append( "err" , errors[0].c_str() );
{ // errs
BSONArrayBuilder all( result.subarrayStart( "errs" ) );
//.........这里部分代码省略.........
示例8: request
bool ClusterWriteCmd::run(OperationContext* txn, const string& dbName,
BSONObj& cmdObj,
int options,
string& errMsg,
BSONObjBuilder& result,
bool ) {
BatchedCommandRequest request( _writeType );
BatchedCommandResponse response;
ClusterWriter writer( true /* autosplit */, 0 /* timeout */ );
// NOTE: Sometimes this command is invoked with LE disabled for legacy writes
LastError* cmdLastError = lastError.get( false );
{
// Disable the last error object for the duration of the write
LastError::Disabled disableLastError( cmdLastError );
// TODO: if we do namespace parsing, push this to the type
if ( !request.parseBSON( cmdObj, &errMsg ) || !request.isValid( &errMsg ) ) {
// Batch parse failure
response.setOk( false );
response.setErrCode( ErrorCodes::FailedToParse );
response.setErrMessage( errMsg );
}
else {
// Fixup the namespace to be a full ns internally
NamespaceString nss( dbName, request.getNS() );
request.setNS( nss.ns() );
writer.write( request, &response );
}
dassert( response.isValid( NULL ) );
}
if ( cmdLastError ) {
// Populate the lastError object based on the write response
cmdLastError->reset();
batchErrorToLastError( request, response, cmdLastError );
}
size_t numAttempts;
if ( !response.getOk() ) {
numAttempts = 0;
} else if ( request.getOrdered() && response.isErrDetailsSet() ) {
numAttempts = response.getErrDetailsAt(0)->getIndex() + 1; // Add one failed attempt
} else {
numAttempts = request.sizeWriteOps();
}
// TODO: increase opcounters by more than one
if ( _writeType == BatchedCommandRequest::BatchType_Insert ) {
for( size_t i = 0; i < numAttempts; ++i ) {
globalOpCounters.gotInsert();
}
} else if ( _writeType == BatchedCommandRequest::BatchType_Update ) {
for( size_t i = 0; i < numAttempts; ++i ) {
globalOpCounters.gotUpdate();
}
} else if ( _writeType == BatchedCommandRequest::BatchType_Delete ) {
for( size_t i = 0; i < numAttempts; ++i ) {
globalOpCounters.gotDelete();
}
}
// Save the last opTimes written on each shard for this client, to allow GLE to work
if ( ClientInfo::exists() && writer.getStats().hasShardStats() ) {
ClientInfo* clientInfo = ClientInfo::get( NULL );
clientInfo->addHostOpTimes( writer.getStats().getShardStats().getWriteOpTimes() );
}
// TODO
// There's a pending issue about how to report response here. If we use
// the command infra-structure, we should reuse the 'errmsg' field. But
// we have already filed that message inside the BatchCommandResponse.
// return response.getOk();
result.appendElements( response.toBSON() );
return true;
}