boinc/api/api_app.C

112 lines
3.0 KiB
C

// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This 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 2.1 of the License, or (at your option) any later version.
//
// This software 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.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// test program for MFILE class
#include <cstdlib>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include "boinc_api.h"
int recover(char* file, unsigned long int* i);
int timer(int secs, int usecs);
int parse_args(int argc, char **argv, int& secs, int& usecs);
int main(int argc, char **argv) {
MFILE mf, check;
unsigned long int i = 0;
int temp=0, secs, usecs;
APP_IN ai;
APP_OUT ao;
boinc_init(ai);
mf.open("foobar", "w");
mf.printf("blah %d %f\n", 17, 34.5);
mf.printf("foo\n");
if(!recover("counter", &i)) {
check.open("counter", "w");
check.printf("%d", 0);
check.flush();
check.close();
}
if(parse_args(argc, argv, secs, usecs)) {
fprintf(stderr, "error: could not parse arguments\n");
return 1;
}
if(timer(secs, usecs)) {
fprintf(stderr, "error: could not initialize timer\n");
return 1;
}
for(; i<100000000; i++) {
if(time_to_checkpoint()) {
check.open("counter", "w");
check.printf("%d", i);
check.flush();
check.close();
ao.percent_done = ((double)i)/100000000.0;
checkpoint_completed(ao);
}
temp++;
}
mf.close();
ao.percent_done = 1;
app_completed(ao);
return 0;
}
int recover(char* file, unsigned long int* i) {
FILE* f = fopen(file, "r");
if(f==NULL) {
*i=0;
return 0;
}
fscanf(f, "%lu", i);
if(fclose(f)) {
fprintf(stderr, "error: could not close file %s\n", file);
exit(-1);
}
return *i;
}
int timer(int secs, int usecs) {
int retval=0;
#ifdef HAVE_SYS_TIME_H
itimerval value;
value.it_value.tv_sec=secs;
value.it_value.tv_usec=usecs;
value.it_interval.tv_sec=0;
value.it_interval.tv_usec=0;
retval = setitimer(ITIMER_REAL, &value, NULL);
#endif
return retval;
}
int parse_args(int argc, char **argv, int& secs, int& usecs) {
if(argc != 3) {
fprintf(stderr, "error: incorrect number of arguments %d\n", argc);
return 1;
}
secs = atoi(argv[1]);
usecs = atoi(argv[2]);
return 0;
}
const char *BOINC_RCSID_bccd17d4ec = "$Id$";