mirror of https://github.com/BOINC/boinc.git
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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// The structure of the memory segment shared between
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// the feeder and schedulers
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// This is essentially a cache of DB contents:
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// small static tables like app_version,
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// and a queue of results waiting to be sent.
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#ifndef _SCHED_SHMEM_H_
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#define _SCHED_SHMEM_H_
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#include "boinc_db.h"
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#include "hr_info.h"
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// the following must be at least as large as DB tables
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// (counting only non-deprecated entries for the current major version)
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// Increase as needed
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//
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#define MAX_PLATFORMS 50
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#define MAX_APPS 10
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#define MAX_APP_VERSIONS 50
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#define MAX_ASSIGNMENTS 10
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// Default number of work items in shared mem.
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// You can configure this in config.xml (<shmem_work_items>)
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// If you increase this above 100,
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// you may exceed the max shared-memory segment size
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// on some operating systems.
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//
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#define MAX_WU_RESULTS 100
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// values of WU_RESULT.state
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#define WR_STATE_EMPTY 0
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#define WR_STATE_PRESENT 1
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// If neither of the above, the value is the PID of a scheduler process
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// that has this item reserved
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// a workunit/result pair
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struct WU_RESULT {
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int state;
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int infeasible_count;
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bool need_reliable; // try to send to a reliable host
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WORKUNIT workunit;
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int resultid;
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int time_added_to_shared_memory;
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int result_priority;
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double fpops_size; // measured in stdevs
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};
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// this struct is followed in memory by an array of WU_RESULTS
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//
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struct SCHED_SHMEM {
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bool ready; // feeder sets to true when init done
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// the following fields let the scheduler make sure
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// that the shared mem has the right format
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int ss_size; // size of this struct, including WU_RESULT array
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int platform_size; // sizeof(PLATFORM)
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int app_size; // sizeof(APP)
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int app_version_size; // sizeof(APP_VERSION)
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int assignment_size; // sizeof(ASSIGNMENT))
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int wu_result_size; // sizeof(WU_RESULT)
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int nplatforms;
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int napps;
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double app_weights;
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int napp_versions;
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int nassignments;
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int max_platforms;
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int max_apps;
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int max_app_versions;
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int max_assignments;
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int max_wu_results;
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PERF_INFO perf_info;
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PLATFORM platforms[MAX_PLATFORMS];
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APP apps[MAX_APPS];
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APP_VERSION app_versions[MAX_APP_VERSIONS];
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ASSIGNMENT assignments[MAX_ASSIGNMENTS];
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WU_RESULT wu_results[0];
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void init(int nwu_results);
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int verify();
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int scan_tables();
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bool no_work(int pid);
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void restore_work(int pid);
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void show(FILE*);
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APP* lookup_app(int);
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APP_VERSION* lookup_app_version(int appid, int platform);
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PLATFORM* lookup_platform_id(int);
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PLATFORM* lookup_platform(char*);
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};
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#endif
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