boinc/sched_fcgi/main.C

125 lines
3.2 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):
//
#include <stdio.h>
#include <unistd.h>
#include "db.h"
#include "parse.h"
#include "shmem.h"
#include "server_types.h"
#include "handle_request.h"
#ifdef _USING_FCGI_
#include "/usr/local/include/fcgi_stdio.h"
#endif
#define REQ_FILE_PREFIX "/tmp/boinc_req_"
#define REPLY_FILE_PREFIX "/tmp/boinc_reply_"
int return_error(char* p) {
fprintf(stderr, "BOINC server: %s\n", p);
printf("<error_msg>%s</error_msg>\n", p);
return 1;
}
// the code below is convoluted because,
// instead of going from stdin to stdout directly,
// we go via a pair of disk files
// (this makes it easy to save the input,
// and to know the length of the output).
//
int main() {
FILE* fin, *fout;
int i, retval, pid;
char req_path[256], reply_path[256];
SCHED_SHMEM* ssp;
void* p;
#ifdef _USING_FCGI_
while(FCGI_Accept >= 0) {
#endif
retval = attach_shmem(BOINC_KEY, &p);
if (retval) {
printf("can't attach shmem\n");
exit(1);
}
ssp = (SCHED_SHMEM*)p;
retval = ssp->verify();
if (retval) {
printf("shmem has wrong struct sizes - recompile\n");
exit(1);
}
for (i=0; i<10; i++) {
if (ssp->ready) break;
fprintf(stderr, "Waiting for ready flag\n");
sleep(1);
}
if (!ssp->ready) {
fprintf(stderr, "handle_request(): feeder doesn't seem to be running\n");
exit(1);
}
fprintf(stderr, "got ready flag\n");
pid = getpid();
sprintf(req_path, "%s%d", REQ_FILE_PREFIX, pid);
sprintf(reply_path, "%s%d", REPLY_FILE_PREFIX, pid);
fprintf(stdout, "Content-type: text/plain\n\n");
fout = fopen(req_path, "w");
if (!fout) {
exit(return_error("can't write request file"));
}
copy_stream(stdin, fout);
fclose(fout);
fin = fopen(req_path, "r");
if (!fin) {
exit(return_error("can't read request file"));
}
fout = fopen(reply_path, "w");
if (!fout) {
exit(return_error("can't write reply file"));
}
retval = db_open("boinc");
if (retval) {
exit(return_error("can't open database"));
}
handle_request(fin, fout, *ssp);
db_close();
fclose(fin);
fclose(fout);
fin = fopen(reply_path, "r");
if (!fin) {
exit(return_error("can't read reply file"));
}
copy_stream(fin, stdout);
fclose(fin);
unlink(req_path);
unlink(reply_path);
#ifdef _USING_FCGI_
}
#endif
}