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boinc/db/boinc_db.h

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
#ifndef _BOINC_DB_
#define _BOINC_DB_
// Structures corresponding to database records.
// Some of these types have counterparts in client/types.h,
// but don't be deceived - client and server have different variants.
// The parse and write functions are for use in scheduler RPC.
// They don't necessarily serialize the entire records.
#include <cstdio>
#include <vector>
#include "db_base.h"
extern DB_CONN boinc_db;
// Sizes of text buffers in memory, corresponding to database BLOBs.
// The following is for regular blobs, 64KB
#define BLOB_SIZE 65536
// The following are for "medium blobs",
// which are 16MB in the DB
//
#define APP_VERSION_XML_BLOB_SIZE 262144
#define MSG_FROM_HOST_BLOB_SIZE 262144
#define MSG_TO_HOST_BLOB_SIZE 262144
// Dummy name for file xfers
#define FILE_MOVER "move_file"
struct BEST_APP_VERSION;
// A compilation target, i.e. a architecture/OS combination.
// The core client will be given only applications with the same platform
//
struct PLATFORM {
int id;
int create_time;
char name[256]; // i.e. "sparc-sun-solaris"
char user_friendly_name[256]; // i.e. "SPARC Solaris 2.8"
int deprecated;
void clear();
};
// An application.
//
struct APP {
int id;
int create_time;
char name[256]; // application name, preferably short
int min_version; // don't use app versions before this
bool deprecated;
char user_friendly_name[256];
int homogeneous_redundancy;
double weight; // tells the feeder what fraction of results
// should come from this app
bool beta;
int target_nresults;
int write(FILE*);
void clear();
};
// A version of an application.
//
struct APP_VERSION {
int id;
int create_time;
int appid;
int version_num;
int platformid;
char xml_doc[APP_VERSION_XML_BLOB_SIZE];
// describes app files. format:
// <file_info>...</file_info>
// ...
// <app_version>
// <app_name>...</app_name>
// <version_num>x</version_num>
// <api_version>n.n.n</api_version>
// <file_ref>
// ...
// [<main_program/>]
// [<copy_file/>]
// </file_ref>
// </app_version>
//
// the following let you handle backwards-incompatible changes to
// the core client / app interface
//
int min_core_version; // min core version this app will run with
int max_core_version; // if <>0, max core version this will run with
bool deprecated;
char plan_class[256];
// the following used by scheduler, not in DB
//
BEST_APP_VERSION* bavp;
int write(FILE*);
void clear();
};
struct USER {
int id;
int create_time;
char email_addr[256];
char name[256];
char authenticator[256];
char country[256];
char postal_code[256];
double total_credit;
double expavg_credit; // credit per second, recent average
double expavg_time; // when the above was computed
char global_prefs[BLOB_SIZE];
// global preferences, within <global_preferences> tag
char project_prefs[BLOB_SIZE];
// project preferences; format:
// <project_preferences>
// <resource_share>X</resource_share>
// <project_specific>
// ...
// </project_specific>
// <venue name="x">
// <resource_share>x</resource_share>
// <project_specific>
// ...
// </project_specific>
// </venue>
// ...
// </project_preferences>
int teamid; // team ID if any
char venue[256]; // home/work/school (default)
char url[256]; // user's web page if any
bool send_email;
bool show_hosts;
int posts; // number of messages posted (redundant)
// deprecated as of 9/2004 - forum_preferences.posts is used instead
// may be used as a temp var
// WARNING: it's a shortint (16 bits) in the DB
// The following are specific to SETI@home;
// they record info about the user's involvement in a prior project
int seti_id; // ID in old DB
int seti_nresults; // number of WUs completed
int seti_last_result_time; // time of last result (UNIX)
double seti_total_cpu; // number of CPU seconds
char signature[256];
// deprecated as of 9/2004 - may be used as temp
bool has_profile;
char cross_project_id[256];
char passwd_hash[256];
bool email_validated; // deprecated
int donated;
void clear();
};
#define TEAM_TYPE_CLUB 1
#define TEAM_TYPE_COMPANY 2
#define TEAM_TYPE_PRIMARY 3
#define TEAM_TYPE_SECONDARY 4
#define TEAM_TYPE_JUNIOR_COLLEGE 5
#define TEAM_TYPE_UNIVERSITY 6
#define TEAM_TYPE_GOVERNMENT 7
// invariants of teams:
// a team has > 0 members
struct TEAM {
int id;
int create_time;
int userid; // User ID of team founder
char name[256];
char name_lc[256]; // Team name in lowercase (used for searching)
char url[256];
int type; // Team type (see above)
char name_html[256];
char description[BLOB_SIZE];
int nusers; // UNDEFINED BY DEFAULT
char country[256];
double total_credit;
double expavg_credit;
double expavg_time;
int seti_id; // ID in another DB
// this is used to identify BOINC-wide teams
int ping_user; // user who asked to become founder
int ping_time; // when they asked.
// see html/inc/team.inc for more details
void clear();
};
struct HOST {
int id;
int create_time;
int userid; // ID of user running this host
// If the host is "zombied" during merging of duplicate hosts,
// this field is set to zero and rpc_seqno is used to
// store the ID of the new host (kludge, but what the heck)
int rpc_seqno; // last seqno received from client
// also used as a "forwarding ID" for zombied hosts (see above)
int rpc_time; // time of last scheduler RPC
double total_credit;
double expavg_credit; // credit per second, recent average
double expavg_time; // last time the above was updated
// all remaining items are assigned by the client
int timezone; // local STANDARD time at host - UTC time
// (in seconds)
char domain_name[256];
char serialnum[256]; // textual description of coprocessors
char last_ip_addr[256]; // internal IP address as of last RPC
int nsame_ip_addr; // # of RPCs with same IP address
double on_frac; // see client/time_stats.h
double connected_frac;
double active_frac;
double cpu_efficiency; // deprecated as of 6.4 client
double duration_correction_factor;
int p_ncpus; // Number of CPUs on host
char p_vendor[256]; // Vendor name of CPU
char p_model[256]; // Model of CPU
double p_fpops; // measured floating point ops/sec of CPU
double p_iops; // measured integer ops/sec of CPU
double p_membw; // measured memory bandwidth (bytes/sec) of CPU
// The above are per CPU, not total
char os_name[256]; // Name of operating system
char os_version[256]; // Version of operating system
double m_nbytes; // Size of memory in bytes
double m_cache; // Size of CPU cache in bytes (L1 or L2?)
double m_swap; // Size of swap space in bytes
double d_total; // Total disk space on volume containing
// the BOINC client directory.
double d_free; // how much is free on that volume
// the following 2 items are reported in scheduler RPCs
// from clients w/ source Oct 4 2005 and later.
// NOTE: these items plus d_total and d_free are sufficient
// to avoid exceeding BOINC's limit on total disk space.
// But they are NOT sufficient to do resource-share-based
// disk space allocation.
// This needs to thought about.
//
double d_boinc_used_total;
// disk space being used in BOINC client dir,
// including all projects and BOINC itself
double d_boinc_used_project;
// amount being used for this project
// The following item is not used.
// It's redundant (server can compute based on other params and prefs)
//
double d_boinc_max; // max disk space that BOINC is allowed to use,
// reflecting user preferences
double n_bwup; // Average upload bandwidth, bytes/sec
double n_bwdown; // Average download bandwidth, bytes/sec
// The above are derived from actual
// file upload/download times, and may reflect
// factors other than network bandwidth
// The following is derived (by server) from other fields
double credit_per_cpu_sec;
char venue[256]; // home/work/school
int nresults_today; // results sent since midnight
double avg_turnaround; // recent average result turnaround time
char host_cpid[256]; // host cross-project ID
char external_ip_addr[256]; // IP address seen by scheduler
int max_results_day;
// MRD is dynamically adjusted to limit work sent to bad hosts.
// The maximum # of results sent per day is
// max_results_day * (NCPUS + NCUDA * cuda_multiplier).
// 0 means uninitialized; set to config.daily_result_quota
// -1 means this host is blacklisted - don't return results
// or accept results or trickles; just send it an error message
// Otherwise it lies in the range 0 .. config.daily_result_quota
double error_rate; // dynamic estimate of fraction of results
// that fail validation
// the following not stored in DB
//
double claimed_credit_per_cpu_sec;
char p_features[256];
int parse(FILE*);
int parse_time_stats(FILE*);
int parse_net_stats(FILE*);
int parse_disk_usage(FILE*);
void fix_nans();
void clear();
};
// values for file_delete state
#define FILE_DELETE_INIT 0
#define FILE_DELETE_READY 1
// set to this value only when we believe all files are uploaded
#define FILE_DELETE_DONE 2
// means the files were successfully deleted
#define FILE_DELETE_ERROR 3
// Any error was returned while attempting to delete the file
// values for assimilate_state
#define ASSIMILATE_INIT 0
#define ASSIMILATE_READY 1
#define ASSIMILATE_DONE 2
// NOTE: there is no overall state for a WU (like done/not done)
// There's just a bunch of independent substates
// (file delete, assimilate, and states of results, error flags)
// bit fields of error_mask
#define WU_ERROR_COULDNT_SEND_RESULT 1
#define WU_ERROR_TOO_MANY_ERROR_RESULTS 2
#define WU_ERROR_TOO_MANY_SUCCESS_RESULTS 4
#define WU_ERROR_TOO_MANY_TOTAL_RESULTS 8
#define WU_ERROR_CANCELLED 16
#define WU_ERROR_NO_CANONICAL_RESULT 32
struct WORKUNIT {
int id;
int create_time;
int appid; // associated app
char name[256];
char xml_doc[BLOB_SIZE];
int batch;
double rsc_fpops_est; // estimated # of FP operations
// used to estimate how long a result will take on a host
double rsc_fpops_bound; // upper bound on # of FP ops
// used to calculate an upper bound on the CPU time for a result
// before it is aborted.
double rsc_memory_bound; // upper bound on RAM working set (bytes)
// currently used only by scheduler to screen hosts
// At some point, could use as runtime limit
double rsc_disk_bound; // upper bound on amount of disk needed (bytes)
// (including input, output and temp files, but NOT the app)
// used for 2 purposes:
// 1) for scheduling (don't send this WU to a host w/ insuff. disk)
// 2) abort task if it uses more than this disk
double rsc_bandwidth_bound;
// send only to hosts with at least this much download bandwidth
bool need_validate; // this WU has at least 1 result in
// validate state = NEED_CHECK
int canonical_resultid; // ID of canonical result, or zero
double canonical_credit; // credit that all correct results get
int transition_time; // when should transition_handler
// next check this WU?
// MAXINT if no need to check
int delay_bound; // determines result deadline,
// timeout check time
int error_mask; // bitmask of errors (see above)
int file_delete_state;
int assimilate_state;
int hr_class; // homogeneous redundancy class
// used to send redundant copies only to "similar" hosts
// (in terms of numerics, performance, or both)
double opaque; // project-specific; usually external ID
int min_quorum; // minimum quorum size
int target_nresults; // try to get this many successful results
// may be > min_quorum to get consensus
// quicker or reflect loss rate
int max_error_results; // WU error if < #error results
int max_total_results; // WU error if < #total results
// (need this in case results are never returned)
int max_success_results; // WU error if < #success results
// without consensus (i.e. WU is nondeterministic)
char result_template_file[64];
int priority;
char mod_time[16];
// the following not used in the DB
char app_name[256];
void clear();
};
struct CREDITED_JOB {
int userid;
double workunitid;
// the following not used in the DB
void clear();
};
// WARNING: be Very careful about changing any values,
// especially for a project already running -
// the database will become inconsistent
//#define RESULT_SERVER_STATE_INACTIVE 1
#define RESULT_SERVER_STATE_UNSENT 2
#define RESULT_SERVER_STATE_IN_PROGRESS 4
#define RESULT_SERVER_STATE_OVER 5
// we received a reply, timed out, or decided not to send.
// Note: we could get a reply even after timing out.
#define RESULT_OUTCOME_INIT 0
#define RESULT_OUTCOME_SUCCESS 1
#define RESULT_OUTCOME_COULDNT_SEND 2
#define RESULT_OUTCOME_CLIENT_ERROR 3
// an error happened on the client
#define RESULT_OUTCOME_NO_REPLY 4
#define RESULT_OUTCOME_DIDNT_NEED 5
// we created the result but didn't need to send it because we already
// got a canonical result for the WU
#define RESULT_OUTCOME_VALIDATE_ERROR 6
// The outcome was initially SUCCESS,
// but the validator had a permanent error reading a result file,
// or the result file had a syntax error
#define RESULT_OUTCOME_CLIENT_DETACHED 7
// we believe that the client detached
#define VALIDATE_STATE_INIT 0
#define VALIDATE_STATE_VALID 1
#define VALIDATE_STATE_INVALID 2
#define VALIDATE_STATE_NO_CHECK 3
// WU had error, so we'll never get around to validating its results
// This lets us avoid showing the claimed credit as "pending"
#define VALIDATE_STATE_INCONCLUSIVE 4
// the validator looked this result (as part of a check_set() call)
// but didn't find a canonical result.
// This needs to be distinct from INIT for the transitioner to decide
// whether to trigger the validator
#define VALIDATE_STATE_TOO_LATE 5
// The result arrived after the canonical result's files were deleted,
// so we can't determine if it's valid
// values for ASSIGNMENT.target_type
#define ASSIGN_NONE 0
#define ASSIGN_HOST 1
#define ASSIGN_USER 2
#define ASSIGN_TEAM 3
struct RESULT {
int id;
int create_time;
int workunitid;
int server_state; // see above
int outcome; // see above; defined if server state OVER
int client_state; // phase that client contacted us in.
// if UPLOADED then outcome is success.
// error details are in stderr_out.
// The values for this field are defined
// in lib/result_state.h
int hostid; // host processing this result
int userid; // user processing this result
int report_deadline; // deadline for receiving result
int sent_time; // when result was sent to host
int received_time; // when result was received from host
char name[256];
double cpu_time; // CPU time used to complete result
// NOTE: with the current scheduler and client,
// this is elapsed time, not the CPU time
char xml_doc_in[BLOB_SIZE]; // descriptions of output files
char xml_doc_out[BLOB_SIZE]; // MD5s of output files
char stderr_out[BLOB_SIZE]; // stderr output, if any
int batch;
int file_delete_state; // see above; values for file_delete_state
int validate_state;
double claimed_credit; // CPU time times host credit/sec
double granted_credit; // == canonical credit of WU
double opaque; // project-specific; usually external ID
int random; // determines send order
int app_version_num; // version# of app (not core client)
int appid; // copy of WU's appid
int exit_status; // application exit status, if any
int teamid;
int priority;
char mod_time[16];
// the following used by the scheduler, but not stored in the DB
//
char wu_name[256];
double fpops_per_cpu_sec;
double fpops_cumulative;
double intops_per_cpu_sec;
double intops_cumulative;
int units; // used for granting credit by # of units processed
int parse_from_client(FILE*);
char platform_name[256];
BEST_APP_VERSION* bavp;
void clear();
int write_to_client(FILE*);
};
struct MSG_FROM_HOST {
int id;
int create_time;
int hostid;
char variety[256]; // project-defined; what kind of msg
bool handled; // message handler has processed this
char xml[MSG_FROM_HOST_BLOB_SIZE];
void clear();
};
struct MSG_TO_HOST {
int id;
int create_time;
int hostid;
char variety[256]; // project-defined; what kind of msg
bool handled; // scheduler has sent this
char xml[MSG_TO_HOST_BLOB_SIZE]; // text to include in sched reply
void clear();
};
struct ASSIGNMENT {
int id;
int create_time;
int target_id;
int target_type;
int multi;
int workunitid;
int resultid;
void clear();
};
struct TRANSITIONER_ITEM {
int id; // WARNING: this is the WU ID
char name[256];
int appid;
int min_quorum;
bool need_validate;
int canonical_resultid;
int transition_time;
int delay_bound;
int error_mask;
int max_error_results;
int max_total_results;
int file_delete_state;
int assimilate_state;
int target_nresults;
char result_template_file[64];
int priority;
int hr_class;
int batch;
int res_id; // This is the RESULT ID
char res_name[256];
int res_report_deadline;
int res_server_state;
int res_outcome;
int res_validate_state;
int res_file_delete_state;
int res_sent_time;
int res_hostid;
int res_received_time;
void clear();
void parse(MYSQL_ROW&);
};
struct CREDIT_MULTIPLIER {
int id;
int appid;
int _time;
double multiplier;
void clear();
};
struct DB_CREDIT_MULTIPLIER : public DB_BASE, public CREDIT_MULTIPLIER {
DB_CREDIT_MULTIPLIER(DB_CONN* p=0);
int get_id();
void db_print(char *);
void db_parse(MYSQL_ROW &row);
void get_nearest(int appid, int time);
};
struct STATE_COUNTS {
int appid;
int last_update_time;
int result_server_state_2;
int result_server_state_4;
int result_file_delete_state_1;
int result_file_delete_state_2;
int result_server_state_5_and_file_delete_state_0;
int workunit_need_validate_1;
int workunit_assimilate_state_1;
int workunit_file_delete_state_1;
int workunit_file_delete_state_2;
void clear();
};
struct DB_STATE_COUNTS : public DB_BASE, public STATE_COUNTS {
DB_STATE_COUNTS(DB_CONN* p=0);
int get_id();
void db_print(char *);
void db_parse(MYSQL_ROW &row);
};
struct VALIDATOR_ITEM {
WORKUNIT wu;
RESULT res;
void clear();
void parse(MYSQL_ROW&);
};
class DB_PLATFORM : public DB_BASE, public PLATFORM {
public:
DB_PLATFORM(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
};
class DB_APP : public DB_BASE, public APP {
public:
DB_APP(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
};
class DB_APP_VERSION : public DB_BASE, public APP_VERSION {
public:
DB_APP_VERSION(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
};
class DB_USER : public DB_BASE, public USER {
public:
DB_USER(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
void operator=(USER& r) {USER::operator=(r);}
};
class DB_TEAM : public DB_BASE, public TEAM {
public:
DB_TEAM(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
};
class DB_HOST : public DB_BASE, public HOST {
public:
DB_HOST(DB_CONN* p=0);
int get_id();
int update_diff(HOST&);
void db_print(char*);
void db_parse(MYSQL_ROW &row);
void operator=(HOST& r) {HOST::operator=(r);}
};
class DB_RESULT : public DB_BASE, public RESULT {
public:
DB_RESULT(DB_CONN* p=0);
int get_id();
int mark_as_sent(int old_server_state);
void db_print(char*);
void db_print_values(char*);
void db_parse(MYSQL_ROW &row);
void operator=(RESULT& r) {RESULT::operator=(r);}
};
class DB_WORKUNIT : public DB_BASE, public WORKUNIT {
public:
DB_WORKUNIT(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
void operator=(WORKUNIT& w) {WORKUNIT::operator=(w);}
};
class DB_CREDITED_JOB : public DB_BASE, public CREDITED_JOB {
public:
DB_CREDITED_JOB(DB_CONN* p=0);
void db_print(char*);
void db_parse(MYSQL_ROW &row);
void operator=(CREDITED_JOB& wh) {CREDITED_JOB::operator=(wh);}
};
class DB_MSG_FROM_HOST : public DB_BASE, public MSG_FROM_HOST {
public:
DB_MSG_FROM_HOST(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
};
class DB_MSG_TO_HOST : public DB_BASE, public MSG_TO_HOST {
public:
DB_MSG_TO_HOST(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW &row);
};
class DB_ASSIGNMENT : public DB_BASE, public ASSIGNMENT {
public:
DB_ASSIGNMENT(DB_CONN* p=0);
int get_id();
void db_print(char*);
void db_parse(MYSQL_ROW& row);
};
// The transitioner uses this to get (WU, result) pairs efficiently.
// Each call to enumerate() returns a list of the pairs for a single WU
//
class DB_TRANSITIONER_ITEM_SET : public DB_BASE_SPECIAL {
public:
DB_TRANSITIONER_ITEM_SET(DB_CONN* p=0);
TRANSITIONER_ITEM last_item;
int nitems_this_query;
int enumerate(
int transition_time,
int nresult_limit,
int wu_id_modulus,
int wu_id_remainder,
std::vector<TRANSITIONER_ITEM>& items
);
int update_result(TRANSITIONER_ITEM&);
int update_workunit(TRANSITIONER_ITEM&, TRANSITIONER_ITEM&);
};
// The validator uses this to get (WU, result) pairs efficiently.
// Each call to enumerate() returns a list of the pairs for a single WU
//
class DB_VALIDATOR_ITEM_SET : public DB_BASE_SPECIAL {
public:
DB_VALIDATOR_ITEM_SET(DB_CONN* p=0);
VALIDATOR_ITEM last_item;
int nitems_this_query;
int enumerate(
int appid,
int nresult_limit,
int wu_id_modulus,
int wu_id_remainder,
std::vector<VALIDATOR_ITEM>& items
);
int update_result(RESULT&);
int update_workunit(WORKUNIT&);
};
// used by the feeder and scheduler for outgoing work
//
struct WORK_ITEM {
int res_id;
int res_priority;
WORKUNIT wu;
void parse(MYSQL_ROW& row);
};
class DB_WORK_ITEM : public WORK_ITEM, public DB_BASE_SPECIAL {
int start_id;
// when enumerate_all is used, keeps track of which ID to start from
public:
DB_WORK_ITEM(DB_CONN* p=0);
int enumerate(
int limit, const char* select_clause, const char* order_clause
);
// used by feeder
int enumerate_all(
int limit, const char* select_clause
);
// used by feeder when HR is used.
// Successive calls cycle through all results.
int read_result();
// used by scheduler to read result server state
int update();
// used by scheduler to update WU transition time
// and various result fields
};
// Used by the scheduler to send <result_abort> or <result_abort_if_not_started>
// messages if the result is no longer needed.
//
struct IN_PROGRESS_RESULT {
char result_name[256];
int assimilate_state;
int error_mask;
int server_state;
int outcome;
void parse(MYSQL_ROW& row);
};
class DB_IN_PROGRESS_RESULT : public IN_PROGRESS_RESULT, public DB_BASE_SPECIAL {
public:
DB_IN_PROGRESS_RESULT(DB_CONN* p=0);
int enumerate(int hostid, const char* result_names);
};
// Used by the scheduler to handle results reported by clients
// The read and the update of these results are combined
// into single SQL queries.
struct SCHED_RESULT_ITEM {
char queried_name[256]; // name as reported by client
int id;
char name[256];
int workunitid;
int appid;
int server_state;
int client_state;
int validate_state;
int outcome;
int hostid;
int userid;
int teamid;
int sent_time;
int received_time;
double cpu_time;
double claimed_credit;
char xml_doc_out[BLOB_SIZE];
char stderr_out[BLOB_SIZE];
int app_version_num;
int exit_status;
int file_delete_state;
void clear();
void parse(MYSQL_ROW& row);
};
class DB_SCHED_RESULT_ITEM_SET : public DB_BASE_SPECIAL {
public:
DB_SCHED_RESULT_ITEM_SET(DB_CONN* p=0);
std::vector<SCHED_RESULT_ITEM> results;
int add_result(char* result_name);
int enumerate();
// using a single SQL query, look up all the reported results,
// (based on queried_name)
// and fill in the rest of the entries in the results vector
int lookup_result(char* result_name, SCHED_RESULT_ITEM** result);
int update_result(SCHED_RESULT_ITEM& result);
int update_workunits();
};
#endif
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