| /////////////////////////////////////////////////////////////////////////////// |
| // |
| // @@@ START COPYRIGHT @@@ |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| // |
| // @@@ END COPYRIGHT @@@ |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include <stdio.h> |
| #include "reqqueue.h" |
| #include "montrace.h" |
| #include "monsonar.h" |
| #include "monlogging.h" |
| #include "ptpclient.h" |
| |
| extern CMonStats *MonStats; |
| extern CNode *MyNode; |
| extern CNodeContainer *Nodes; |
| extern bool NameServerEnabled; |
| extern CPtpClient *PtpClient; |
| |
| extern _TM_Txid_External invalid_trans( void ); |
| |
| CExtNotifyReq::CExtNotifyReq (reqQueueMsg_t msgType, int pid, |
| struct message_def *msg ) |
| : CExternalReq(msgType, pid, msg) |
| { |
| // Add eyecatcher sequence as a debugging aid |
| memcpy(&eyecatcher_, "RQEM", 4); |
| } |
| |
| CExtNotifyReq::~CExtNotifyReq() |
| { |
| // Alter eyecatcher sequence as a debugging aid to identify deleted object |
| memcpy(&eyecatcher_, "rqem", 4); |
| } |
| |
| void CExtNotifyReq::populateRequestString( void ) |
| { |
| char strBuf[MON_STRING_BUF_SIZE] = { 0 }; |
| |
| snprintf( strBuf, sizeof(strBuf), |
| "ExtReq(%s) req #=%ld " |
| "requester(name=%s/nid=%d/pid=%d/os_pid=%d/verifier=%d) " |
| "target(name=%s/nid=%d/pid=%d/verifier=%d) (cancel=%d)" |
| , CReqQueue::svcReqType[reqType_], getId() |
| , msg_->u.request.u.notify.process_name |
| , msg_->u.request.u.notify.nid |
| , msg_->u.request.u.notify.pid |
| , pid_ |
| , msg_->u.request.u.notify.verifier |
| , msg_->u.request.u.notify.target_process_name |
| , msg_->u.request.u.notify.target_nid |
| , msg_->u.request.u.notify.target_pid |
| , msg_->u.request.u.notify.target_verifier |
| , msg_->u.request.u.notify.cancel ); |
| requestString_.assign( strBuf ); |
| } |
| |
| void CExtNotifyReq::performRequest() |
| { |
| const char method_name[] = "CExtNotifyReq::performRequest"; |
| TRACE_ENTRY; |
| |
| bool status = FAILURE; |
| CProcess *requester; |
| |
| // Record statistics (sonar counters) |
| if (sonar_verify_state(SONAR_ENABLED | SONAR_MONITOR_ENABLED)) |
| MonStats->req_type_notify_Incr(); |
| |
| int pid = -1; |
| int target_nid = -1; |
| int target_pid = -1; |
| Verifier_t target_verifier = -1; |
| string target_process_name; |
| |
| if (trace_settings & (TRACE_REQUEST | TRACE_PROCESS)) |
| { |
| trace_printf( "%s@%d request #%ld: Notify, requester %s (%d, %d:%d), " |
| "target %s (%d, %d:%d), cancel=%d\n" |
| , method_name, __LINE__, id_ |
| , msg_->u.request.u.notify.process_name |
| , msg_->u.request.u.notify.nid |
| , msg_->u.request.u.notify.pid |
| , msg_->u.request.u.notify.verifier |
| , msg_->u.request.u.notify.target_process_name |
| , msg_->u.request.u.notify.target_nid |
| , msg_->u.request.u.notify.target_pid |
| , msg_->u.request.u.notify.target_verifier |
| , msg_->u.request.u.notify.cancel ); |
| } |
| |
| nid_ = msg_->u.request.u.notify.nid; |
| pid = msg_->u.request.u.notify.pid; |
| verifier_ = msg_->u.request.u.notify.verifier; |
| processName_ = msg_->u.request.u.notify.process_name; |
| target_nid = msg_->u.request.u.notify.target_nid; |
| target_pid = msg_->u.request.u.notify.target_pid; |
| target_process_name = (const char *) msg_->u.request.u.notify.target_process_name; |
| target_verifier = msg_->u.request.u.notify.target_verifier; |
| |
| if ( processName_.size() ) |
| { // find by name |
| requester = MyNode->GetProcess( processName_.c_str() |
| , verifier_ ); |
| } |
| else |
| { // find by pid |
| requester = MyNode->GetProcess( pid_ |
| , verifier_ ); |
| } |
| |
| if ( requester ) |
| { |
| CProcess *sourceProcess = requester; |
| if ( sourceProcess ) |
| { |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d - Found sourceProcess %s (%d,%d:%d), clone=%d\n" |
| , method_name, __LINE__ |
| , sourceProcess->GetName() |
| , sourceProcess->GetNid() |
| , sourceProcess->GetPid() |
| , sourceProcess->GetVerifier() |
| , sourceProcess->IsClone() ); |
| } |
| } |
| else |
| { |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d - Can't find sourceProcess %s (%d,%d:%d)\n" |
| , method_name, __LINE__ |
| , processName_.c_str() |
| , nid_ |
| , pid |
| , verifier_ ); |
| } |
| } |
| |
| if ( msg_->u.request.u.notify.cancel ) |
| { |
| if ( sourceProcess && |
| msg_->u.request.u.notify.cancel) |
| { // Cancel all death notification requests for the source |
| // process (considering transaction id) |
| sourceProcess->procExitUnregAll(msg_->u.request.u.notify.trans_id); |
| status = SUCCESS; |
| } |
| } |
| else |
| { |
| CProcess *targetProcess = NULL; |
| |
| if ( target_process_name.size() ) |
| { // find by name (check node state, don't check process state, not backup) |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d" " - Finding targetProcess (%s:%d)" "\n" |
| , method_name, __LINE__ |
| , target_process_name.c_str() |
| , target_verifier ); |
| } |
| if (msg_->u.request.u.notify.target_process_name[0] == '$' ) |
| { |
| targetProcess = Nodes->GetProcess( target_process_name.c_str() |
| , target_verifier |
| , true, false, false ); |
| } |
| } |
| else |
| { // find by nid (check node state, don't check process state, backup is Ok) |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d" " - Finding targetProcess (%d,%d:%d)\n" |
| , method_name, __LINE__ |
| , target_nid |
| , target_pid |
| , target_verifier ); |
| } |
| targetProcess = Nodes->GetProcess( target_nid |
| , target_pid |
| , target_verifier |
| , true, false, true ); |
| } |
| |
| if ( targetProcess ) |
| { |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d - Found targetProcess %s (%d,%d:%d), clone=%d\n" |
| , method_name, __LINE__ |
| , targetProcess->GetName() |
| , targetProcess->GetNid() |
| , targetProcess->GetPid() |
| , targetProcess->GetVerifier() |
| , targetProcess->IsClone() ); |
| } |
| } |
| else |
| { |
| if (NameServerEnabled) |
| { |
| if ( target_process_name.size() ) |
| { // Name Server find by name:verifier |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d" " - Getting targetProcess from Name Server (%s:%d)" "\n" |
| , method_name, __LINE__ |
| , target_process_name.c_str() |
| , target_verifier ); |
| } |
| if (msg_->u.request.u.notify.target_process_name[0] == '$' ) |
| { |
| targetProcess = Nodes->CloneProcessNs( target_process_name.c_str() |
| , target_verifier ); |
| } |
| } |
| else |
| { // Name Server find by nid,pid:verifier |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf( "%s@%d" " - Getting targetProcess from Name Server (%d,%d:%d)\n" |
| , method_name, __LINE__ |
| , target_nid |
| , target_pid |
| , target_verifier ); |
| } |
| targetProcess = Nodes->CloneProcessNs( target_nid |
| , target_pid |
| , target_verifier ); |
| } |
| if (targetProcess) |
| { |
| if (trace_settings & TRACE_REQUEST) |
| trace_printf( "%s@%d - Found targetProcess %s (%d,%d:%d), clone=%d\n" |
| , method_name, __LINE__ |
| , targetProcess->GetName() |
| , targetProcess->GetNid() |
| , targetProcess->GetPid() |
| , targetProcess->GetVerifier() |
| , targetProcess->IsClone() ); |
| } |
| } |
| } |
| |
| if ( targetProcess ) |
| { |
| int verifier = msg_->u.request.u.notify.target_verifier; |
| if ( (verifier != -1) && (verifier != targetProcess->GetVerifier()) ) |
| { |
| if (trace_settings & (TRACE_REQUEST | TRACE_PROCESS)) |
| { |
| trace_printf("%s@%d - Notify, target (%d, %d:%d) failed -- verifier mismatch (%d)\n", |
| method_name, __LINE__, |
| target_nid, |
| target_pid, |
| target_verifier, |
| targetProcess->GetVerifier()); |
| } |
| } |
| else |
| { |
| if (sourceProcess) |
| { // Register interest in death of target process |
| if (NameServerEnabled && targetProcess->IsClone()) |
| { |
| CLNode *targetLNode = Nodes->GetLNode( targetProcess->GetNid() ); |
| |
| _TM_Txid_External transId = msg_->u.request.u.notify.trans_id; |
| int rc = -1; |
| |
| // Forward the process cancel death notification to the target node |
| rc = PtpClient->ProcessNotify( sourceProcess->GetNid() |
| , sourceProcess->GetPid() |
| , sourceProcess->GetVerifier() |
| , transId |
| , false |
| , targetProcess |
| , targetLNode->GetNid() |
| , targetLNode->GetNode()->GetName() ); |
| if (rc) |
| { |
| char la_buf[MON_STRING_BUF_SIZE]; |
| snprintf( la_buf, sizeof(la_buf) |
| , "[%s] - Can't send process notify request " |
| "for process %s (%d, %d) " |
| "to target node %s, nid=%d\n" |
| , method_name |
| , sourceProcess->GetName() |
| , sourceProcess->GetNid() |
| , sourceProcess->GetPid() |
| , targetLNode->GetNode()->GetName() |
| , targetLNode->GetNid() ); |
| mon_log_write(MON_REQ_NOTIFY_1, SQ_LOG_ERR, la_buf); |
| } |
| } |
| |
| sourceProcess->procExitReg( targetProcess, |
| msg_->u.request.u.notify.trans_id); |
| status = SUCCESS; |
| } |
| } |
| } |
| else |
| { |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf("%s@%d" " - Can't find targetProcess" "\n", method_name, __LINE__); |
| } |
| } |
| } |
| |
| msg_->u.reply.type = ReplyType_Generic; |
| msg_->u.reply.u.generic.nid = requester->GetNid(); |
| msg_->u.reply.u.generic.pid = requester->GetPid(); |
| msg_->u.reply.u.generic.verifier = requester->GetVerifier(); |
| strcpy (msg_->u.reply.u.generic.process_name, requester->GetName()); |
| if (status == SUCCESS) |
| { |
| msg_->u.reply.u.generic.return_code = MPI_SUCCESS; |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf("%s@%d" " - Successful" "\n", method_name, __LINE__); |
| } |
| } |
| else |
| { |
| msg_->u.reply.u.generic.return_code = MPI_ERR_NAME; |
| if (trace_settings & TRACE_REQUEST) |
| { |
| trace_printf("%s@%d" " - Unsuccessful" "\n", method_name, __LINE__); |
| } |
| } |
| |
| // Send reply to requester |
| lioreply(msg_, pid_); |
| } |
| else |
| { // Reply to requester so it can release the buffer. |
| // We don't know about this process. |
| if (trace_settings & (TRACE_REQUEST | TRACE_PROCESS)) |
| { |
| trace_printf("%s@%d - Can't find requester, rc=%d\n", method_name, __LINE__, MPI_ERR_NAME); |
| } |
| errorReply( MPI_ERR_EXITED ); |
| } |
| |
| TRACE_EXIT; |
| } |
