int i, ap;
int granui;
const char *database=0;
+ const char *concur_base=0, *concur_rhs=0;
+ int concur_lim=-1;
#ifndef debug_flags
debug_flags= ~( dbg_sql2 );
if (arg[0] != '-') break;
if (!strcmp(arg,"-d")) {
database= *++argv;
+ } else if (!strcmp(arg,"-C")) {
+ concur_base= *++argv;
+ concur_rhs= *++argv;
+ concur_lim= atoi(*++argv);
} else if (!strcmp(arg,"-g")) {
granus= atoi(*++argv);
assert(granus>=1 && granus<=GRANUS);
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);
+ }
+
setup_sql(database);
setup_value();
setup_search();