boinc/sched/sched_shmem.h

98 lines
3.1 KiB
C

// The contents of this file are subject to the BOINC Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
// http://boinc.berkeley.edu/license_1.0.txt
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is the Berkeley Open Infrastructure for Network Computing.
//
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved.
//
// Contributor(s):
//
// The structure of the memory segment shared between
// the feeder and schedulers
// This is essentially a cache of DB contents:
// small static tables like app_version,
// and a queue of results waiting to be sent.
#include "boinc_db.h"
// the following must be at least as large as DB tables
// (counting only non-deprecated entries for the current major version)
// Increase as needed
//
#define MAX_PLATFORMS 50
#define MAX_APPS 10
#define MAX_APP_VERSIONS 50
#define MAX_CORE_VERSIONS 50
// If you increase this above 100,
// you may exceed the max shared-memory segment size
// on some operating systems.
#define MAX_WU_RESULTS 100
//#define MAX_WU_RESULTS 500
// values of state field
#define WR_STATE_EMPTY 0
#define WR_STATE_PRESENT 1
#define WR_STATE_CHECKED_OUT 2
// some server process is considering this result
// If none of the above, the value is a PID of a server
// that has this item reserved
// a workunit/result pair
struct WU_RESULT {
int state;
int infeasible_count;
WORKUNIT workunit;
int resultid;
};
struct SCHED_SHMEM {
bool ready; // feeder sets to true when init done
// the following fields let the scheduler make sure
// that the shared mem has the right format
int ss_size; // sizeof(SCHED_SHMEM)
int platform_size; // sizeof(PLATFORM)
int app_size; // sizeof(APP)
int app_version_size; // sizeof(APP_VERSION)
int core_version_size; // sizeof(CORE_VERSION)
int wu_result_size; // sizeof(WU_RESULT)
int nplatforms;
int napps;
int napp_versions;
int ncore_versions;
int nwu_results;
int max_platforms;
int max_apps;
int max_app_versions;
int max_core_versions;
int max_wu_results;
PLATFORM platforms[MAX_PLATFORMS];
APP apps[MAX_APPS];
APP_VERSION app_versions[MAX_APP_VERSIONS];
CORE_VERSION core_versions[MAX_CORE_VERSIONS];
WU_RESULT wu_results[MAX_WU_RESULTS];
void init();
int verify();
int scan_tables();
bool have_app(int);
bool no_work(int pid);
void restore_work(int pid);
APP* lookup_app(int);
APP_VERSION* lookup_app_version(int appid, int platform, int version);
CORE_VERSION* lookup_core_version(int platform);
PLATFORM* lookup_platform(char*);
};