#2865 refs[t:2865] remove heaviside from scanscan.c

git-svn-id: file:///svn/toku/tokudb@22837 c7de825b-a66e-492c-adef-691d508d4ae1

release/examples/db-scan.c

@@ -25,7 +25,7 @@
 #include <sys/time.h>
 
 const char *pname;
-enum run_mode { RUN_HWC, RUN_LWC, RUN_VERIFY, RUN_HEAVI, RUN_RANGE} run_mode = RUN_HWC;
+enum run_mode { RUN_HWC, RUN_LWC, RUN_VERIFY, RUN_RANGE} run_mode = RUN_HWC;
 int do_txns=1, prelock=0, prelockflag=0;
 u_int32_t lock_flag = 0;
 long limitcount=-1;
@@ -35,7 +35,6 @@ static int n_experiments = 2;
 
 static int print_usage (const char *argv0) {
     fprintf(stderr, "Usage:\n%s [--verify-lwc | --lwc | --nohwc] [--prelock] [--prelockflag] [--prelockwriteflag] [--env DIR]\n", argv0);
-    fprintf(stderr, "  --hwc               run heavy weight cursors (this is the default)\n");
     fprintf(stderr, "  --verify-lwc        means to run the light weight cursor and the heavyweight cursor to verify that they get the same answer.\n");
     fprintf(stderr, "  --lwc               run light weight cursors instead of heavy weight cursors\n");
     fprintf(stderr, "  --prelock           acquire a read lock on the entire table before running\n");
@@ -77,10 +76,6 @@ static void parse_args (int argc, const char *argv[]) {
 	    run_mode = RUN_HWC;
 	} else if (strcmp(*argv, "--prelock")==0) prelock=1;
 #ifdef TOKUDB
-	else if (strcmp(*argv, "--heavi")==0)  {
-	    if (specified_run_mode && run_mode!=RUN_HEAVI) goto two_modes;
-	    run_mode = RUN_HEAVI;
-        }
         else if (strcmp(*argv, "--prelockflag")==0)      { prelockflag=1; lock_flag = DB_PRELOCKED; }
         else if (strcmp(*argv, "--prelockwriteflag")==0) { prelockflag=1; lock_flag = DB_PRELOCKED_WRITE; }
 #endif
@@ -298,97 +293,6 @@ static void scanscan_range (void) {
 }
 
 #ifdef TOKUDB
-struct extra_heavi {
-    long long totalbytes;
-    int rowcounter;
-    DBT key;
-    DBT val;
-};
-
-static int
-copy_dbt(DBT *target, DBT const *source) {
-    int r;
-    if (target->ulen < source->size) {
-        target->data = realloc(target->data, source->size);
-        target->ulen = source->size;
-    }
-    if (!target->data) r = ENOMEM;
-    else {
-        target->size = source->size;
-        memcpy(target->data, source->data, target->size);
-        r = 0;
-    }
-    return r;
-}
-
-typedef struct foo{int a; } FOO;
-
-static int
-heaviside_next(const DBT *key, const DBT *val, void *extra_h) {
-    struct extra_heavi *e=extra_h;
-
-    int cmp;
-    cmp = toku_builtin_compare_fun(db, key, &e->key);
-    if (cmp != 0) return cmp;
-    if (val) cmp = toku_builtin_compare_fun(db, val, &e->val);
-    if (cmp != 0) return cmp;
-    return -1; //Return negative on <=, positive on >
-}
-
-static int copy_and_counttotalbytes (DBT const *key, DBT const *val, void *extrav, int r_h) {
-    assert(r_h>0);
-    struct extra_heavi *e=extrav;
-    e->totalbytes += key->size + val->size;
-    e->rowcounter++;
-    int r;
-    r = copy_dbt(&e->key, key);
-    if (r==0) r = copy_dbt(&e->val, val);
-    return r;
-}
-
-static void scanscan_heaviside (void) {
-    int r;
-    int counter=0;
-    for (counter=0; counter<n_experiments; counter++) {
-	struct extra_heavi e;
-        memset(&e, 0, sizeof(e));
-        e.key.flags = DB_DBT_REALLOC;
-        e.val.flags = DB_DBT_REALLOC;
-	double prevtime = gettime();
-	DBC *dbc;
-	r = db->cursor(db, tid, &dbc, 0);                           assert(r==0);
-        u_int32_t f_flags = 0;
-        if (prelockflag && (counter || prelock)) {
-            f_flags |= lock_flag;
-        }
-        //Get first manually.
-	long rowcounter=1;
-        r = dbc->c_get(dbc, &e.key, &e.val, DB_FIRST | f_flags); assert(r==0);
-        e.rowcounter = 1;
-        e.totalbytes = e.key.size + e.val.size;
-
-	while (0 == (r = dbc->c_getf_heaviside(dbc, f_flags, 
-                        copy_and_counttotalbytes, &e,
-                        heaviside_next, &e,
-                        1))) {
-	    rowcounter++;
-	    if (limitcount>0 && rowcounter>=limitcount) break;
-	}
-        assert(rowcounter==e.rowcounter);
-        if (e.key.data) {
-            free(e.key.data);
-            e.key.data = NULL;
-        }
-        if (e.val.data) {
-            free(e.val.data);
-            e.val.data = NULL;
-        }
-	r = dbc->c_close(dbc);                                      assert(r==0);
-	double thistime = gettime();
-	double tdiff = thistime-prevtime;
-	printf("LWC Scan %lld bytes (%d rows) in %9.6fs at %9fMB/s\n", e.totalbytes, e.rowcounter, tdiff, 1e-6*e.totalbytes/tdiff);
-    }
-}
 
 struct extra_verify {
     long long totalbytes;
@@ -457,7 +361,6 @@ int main (int argc, const char *argv[]) {
 #ifdef TOKUDB
     case RUN_LWC:    scanscan_lwc();    break;
     case RUN_VERIFY: scanscan_verify(); break;
-    case RUN_HEAVI:  scanscan_heaviside(); break;
 #endif
     case RUN_RANGE:  scanscan_range();  break;
     default:         assert(0);         break;