mirror of https://github.com/BOINC/boinc.git
95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
|
// The contents of this file are subject to the Mozilla 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://www.mozilla.org/MPL/
|
||
|
|
//
|
||
|
|
// 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):
|
||
|
|
//
|
||
|
|
|
||
|
|
// read "in", convert to UC, write to "out"
|
||
|
|
//
|
||
|
|
// This version does one char/second,
|
||
|
|
// and writes its state to disk every so often
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <ctype.h>
|
||
|
|
|
||
|
|
#include "api.h"
|
||
|
|
|
||
|
|
#define CHECKPOINT_FILE "uc_slow_state"
|
||
|
|
|
||
|
|
int checkpoint(MFILE& mf, int nchars) {
|
||
|
|
int retval;
|
||
|
|
FILE* f = fopen("temp", "w");
|
||
|
|
if (!f) return 1;
|
||
|
|
fprintf(f, "%d", nchars);
|
||
|
|
fclose(f);
|
||
|
|
|
||
|
|
fprintf(stderr, "APP: uc_slow checkpointing\n");
|
||
|
|
|
||
|
|
// hopefully atomic part starts here
|
||
|
|
retval = mf.flush();
|
||
|
|
if (retval) return retval;
|
||
|
|
retval = rename("temp", CHECKPOINT_FILE);
|
||
|
|
if (retval) return retval;
|
||
|
|
// hopefully atomic part ends here
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
int c, nchars = 0, retval;
|
||
|
|
MFILE out;
|
||
|
|
FILE* state, *in;
|
||
|
|
|
||
|
|
in = fopen("in", "r");
|
||
|
|
state = fopen("uc_slow_state", "r");
|
||
|
|
if (state) {
|
||
|
|
fscanf(state, "%d", &nchars);
|
||
|
|
printf("nchars %d\n", nchars);
|
||
|
|
fseek(in, nchars, SEEK_SET);
|
||
|
|
retval = out.open("out", "a");
|
||
|
|
} else {
|
||
|
|
retval = out.open("out", "w");
|
||
|
|
}
|
||
|
|
fprintf(stderr, "APP: uc_slow starting\n");
|
||
|
|
if (retval) {
|
||
|
|
fprintf(stderr, "APP: uc_slow output open failed %d\n", retval);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
while (1) {
|
||
|
|
c = fgetc(in);
|
||
|
|
if (c == EOF) break;
|
||
|
|
c = toupper(c);
|
||
|
|
out._putchar(c);
|
||
|
|
nchars++;
|
||
|
|
sleep(1);
|
||
|
|
|
||
|
|
if (nchars%5 == 0) {
|
||
|
|
retval = checkpoint(out, nchars);
|
||
|
|
if (retval) {
|
||
|
|
fprintf(stderr, "APP: uc_slow checkpoint failed %d\n", retval);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
retval = out.flush();
|
||
|
|
if (retval) {
|
||
|
|
fprintf(stderr, "APP: uc_slow flush failed %d\n", retval);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
fprintf(stderr, "APP: uc_slow ending, wrote %d chars\n", nchars);
|
||
|
|
}
|