mirror of
https://github.com/OpenNebula/one.git
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220 lines
6.1 KiB
C++
220 lines
6.1 KiB
C++
/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2010, OpenNebula Project Leads (OpenNebula.org) */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#ifndef HISTORY_H_
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#define HISTORY_H_
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#include "ObjectSQL.h"
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using namespace std;
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/**
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* The History class, it represents an execution record of a Virtual Machine.
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*/
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class History:public ObjectSQL
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{
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public:
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enum MigrationReason
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{
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NONE, /** < Normal termination in host */
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ERROR, /** < The VM was migrated because of an error */
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STOP_RESUME,/** < The VM was migrated because of a stop/resume request*/
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USER, /** < The VM was migrated because of an explicit request */
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CANCEL /** < The VM was migrated because of an explicit cancel */
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};
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History(int oid, int _seq = -1);
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History(
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int oid,
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int seq,
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int hid,
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string& hostname,
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string& vm_dir,
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string& vmm,
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string& tm);
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~History(){};
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/**
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* Function to write the History Record in an output stream
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*/
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friend ostream& operator<<(ostream& os, const History& history);
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/**
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* Function to print the History object into a string in
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* plain text
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* @param str the resulting string
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* @return a reference to the generated string
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*/
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string& to_str(string& str) const;
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/**
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* Function to print the History object into a string in
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* XML format
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* @param xml the resulting XML string
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* @return a reference to the generated string
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*/
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string& to_xml(string& xml) const;
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private:
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friend class VirtualMachine;
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friend class VirtualMachinePool;
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// ----------------------------------------
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// DataBase implementation variables
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// ----------------------------------------
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enum ColNames
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{
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VID = 0,
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SEQ = 1,
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HOSTNAME = 2,
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VM_DIR = 3,
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HID = 4,
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VMMMAD = 5,
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TMMAD = 6,
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STIME = 7,
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ETIME = 8,
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PROLOG_STIME = 9,
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PROLOG_ETIME = 10,
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RUNNING_STIME = 11,
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RUNNING_ETIME = 12,
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EPILOG_STIME = 13,
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EPILOG_ETIME = 14,
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REASON = 15,
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LIMIT = 16
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};
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static const char * table;
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static const char * db_names;
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static const char * db_bootstrap;
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void non_persistent_data();
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static string column_name(const ColNames column)
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{
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switch (column)
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{
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case HID:
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return "hid";
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case ETIME:
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return "etime";
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case RUNNING_ETIME:
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return "retime";
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default:
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return "";
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}
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}
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// ----------------------------------------
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// History fields
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// ----------------------------------------
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int oid;
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int seq;
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string hostname;
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string vm_dir;
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int hid;
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string vmm_mad_name;
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string tm_mad_name;
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time_t stime;
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time_t etime;
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time_t prolog_stime;
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time_t prolog_etime;
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time_t running_stime;
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time_t running_etime;
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time_t epilog_stime;
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time_t epilog_etime;
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MigrationReason reason;
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//Non-persistent history fields
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string vm_lhome;
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string transfer_file;
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string deployment_file;
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string context_file;
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string vm_rhome;
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string checkpoint_file;
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string rdeployment_file;
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/**
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* Writes the history record in the DB
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int insert(SqlDB * db);
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/**
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* Reads the history record from the DB
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int select(SqlDB * db);
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/**
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* Updates the history record
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int update(SqlDB * db);
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/**
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* Removes the all history records from the DB
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* @param db pointer to the database.
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* @return 0 on success.
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*/
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int drop(SqlDB * db);
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/**
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* Execute an INSERT or REPLACE Sql query.
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* @param db The SQL DB
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* @param replace Execute an INSERT or a REPLACE
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* @return 0 on success
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*/
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int insert_replace(SqlDB *db, bool replace);
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/**
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* Callback function to unmarshall a history object (History::select)
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* @param num the number of columns read from the DB
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* @para names the column names
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* @para vaues the column values
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* @return 0 on success
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*/
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int select_cb(void *nil, int num, char **values, char **names);
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/**
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* Function to unmarshall a History object into an output stream with XML
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* format.
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* @param oss the output stream
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* @param num the number of columns read from the DB
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* @param names the column names
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* @param vaues the column values
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* @return 0 on success
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*/
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static int dump(ostringstream& oss, int num, char **names, char **values);
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};
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#endif /*HISTORY_H_*/ |