+ min_trade_maxprofit= atoi(*argv++);
+
+ if (concur_base) {
+ for (i=0; i<concur_lim; i++) {
+ char *concfn= masprintf("%s%02d%s", concur_base, i, concur_rhs);
+ int concfd, r;
+ sysassert( (concfd= open(concfn, O_RDWR|O_CREAT|O_TRUNC, 0600)) >= 0);
+ struct flock fl;
+ memset(&fl,0,sizeof(fl));
+ fl.l_type= F_WRLCK;
+ r= fcntl(concfd, F_SETLK, &fl);
+ free(concfn);
+ if (!r) goto concur_ok;
+ sysassert( errno == EWOULDBLOCK );
+ close(concfd);
+ }
+ fprintf(output,"@@@ concurrency limit exceeded (%d)\n", concur_lim);
+ exit(0);
+
+ concur_ok:
+ /* deliberately leak concfd */
+ fprintf(output,"concurrency slot %d\n", i);
+ }
+