boinc/api/api_app.C

110 lines
2.9 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):
//
// test program for MFILE class
#include <stdlib.h>
#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;
}