mtest*.c, sample-*.c: Add/note error checks.

[openldap] / libraries / liblmdb / mtest5.c

diff --git a/libraries/liblmdb/mtest5.c b/libraries/liblmdb/mtest5.c
index bc472fa0930a519a7c26bfabd14ad3e14378c971..4edfea0d4c4d61ea103c47a01f7d6b277ea27f6a 100644 (file)
--- a/libraries/liblmdb/mtest5.c
+++ b/libraries/liblmdb/mtest5.c
@@ -20,6 +20,11 @@
 #include <time.h>
 #include "lmdb.h"
 
+#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
+#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
+#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
+       "%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
+
 int main(int argc,char * argv[])
 {
        int i = 0, j = 0, rc;
@@ -45,13 +50,13 @@ int main(int argc,char * argv[])
                values[i] = random()%1024;
        }
 
-       rc = mdb_env_create(&env);
-       rc = mdb_env_set_mapsize(env, 10485760);
-       rc = mdb_env_set_maxdbs(env, 4);
-       rc = mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664);
-       rc = mdb_txn_begin(env, NULL, 0, &txn);
-       rc = mdb_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi);
-       rc = mdb_cursor_open(txn, dbi, &cursor);
+       E(mdb_env_create(&env));
+       E(mdb_env_set_mapsize(env, 10485760));
+       E(mdb_env_set_maxdbs(env, 4));
+       E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
+       E(mdb_txn_begin(env, NULL, 0, &txn));
+       E(mdb_open(txn, "id2", MDB_CREATE|MDB_DUPSORT, &dbi));
+       E(mdb_cursor_open(txn, dbi, &cursor));
 
        key.mv_size = sizeof(int);
        key.mv_data = kval;
@@ -63,21 +68,22 @@ int main(int argc,char * argv[])
                if (!(i & 0x0f))
                        sprintf(kval, "%03x", values[i]);
                sprintf(sval, "%03x %d foo bar", values[i], values[i]);
-               rc = mdb_cursor_put(cursor, &key, &data, MDB_NODUPDATA);
-               if (rc) j++;
+               if (RES(MDB_KEYEXIST, mdb_cursor_put(cursor, &key, &data, MDB_NODUPDATA)))
+                       j++;
        }
        if (j) printf("%d duplicates skipped\n", j);
        mdb_cursor_close(cursor);
-       rc = mdb_txn_commit(txn);
-       rc = mdb_env_stat(env, &mst);
+       E(mdb_txn_commit(txn));
+       E(mdb_env_stat(env, &mst));
 
-       rc = mdb_txn_begin(env, NULL, 1, &txn);
-       rc = mdb_cursor_open(txn, dbi, &cursor);
+       E(mdb_txn_begin(env, NULL, 1, &txn));
+       E(mdb_cursor_open(txn, dbi, &cursor));
        while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
                printf("key: %p %.*s, data: %p %.*s\n",
                        key.mv_data,  (int) key.mv_size,  (char *) key.mv_data,
                        data.mv_data, (int) data.mv_size, (char *) data.mv_data);
        }
+       CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
        mdb_cursor_close(cursor);
        mdb_txn_abort(txn);
 
@@ -86,39 +92,40 @@ int main(int argc,char * argv[])
        for (i= count - 1; i > -1; i-= (random()%5)) {
                j++;
                txn=NULL;
-               rc = mdb_txn_begin(env, NULL, 0, &txn);
+               E(mdb_txn_begin(env, NULL, 0, &txn));
                sprintf(kval, "%03x", values[i & ~0x0f]);
                sprintf(sval, "%03x %d foo bar", values[i], values[i]);
                key.mv_size = sizeof(int);
                key.mv_data = kval;
                data.mv_size = sizeof(sval);
                data.mv_data = sval;
-               rc = mdb_del(txn, dbi, &key, &data);
-               if (rc) {
+               if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, &data))) {
                        j--;
                        mdb_txn_abort(txn);
                } else {
-                       rc = mdb_txn_commit(txn);
+                       E(mdb_txn_commit(txn));
                }
        }
        free(values);
        printf("Deleted %d values\n", j);
 
-       rc = mdb_env_stat(env, &mst);
-       rc = mdb_txn_begin(env, NULL, 1, &txn);
-       rc = mdb_cursor_open(txn, dbi, &cursor);
+       E(mdb_env_stat(env, &mst));
+       E(mdb_txn_begin(env, NULL, 1, &txn));
+       E(mdb_cursor_open(txn, dbi, &cursor));
        printf("Cursor next\n");
        while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
                printf("key: %.*s, data: %.*s\n",
                        (int) key.mv_size,  (char *) key.mv_data,
                        (int) data.mv_size, (char *) data.mv_data);
        }
+       CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
        printf("Cursor prev\n");
        while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
                printf("key: %.*s, data: %.*s\n",
                        (int) key.mv_size,  (char *) key.mv_data,
                        (int) data.mv_size, (char *) data.mv_data);
        }
+       CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
        mdb_cursor_close(cursor);
        mdb_close(env, dbi);