test case described by barry and yoni that requires LSN filtering during recovery [t:1993]

git-svn-id: file:///svn/toku/tokudb@14356 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/recover-lsn-filter.c

+// this test makes sure the LSN filtering is used during recovery
+
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include "test.h"
+
+const int envflags = DB_INIT_MPOOL|DB_CREATE|DB_THREAD |DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN;
+
+char *namea="a.db";
+
+static void run_test (void) {
+    int r;
+
+    system("rm -rf " ENVDIR);
+    toku_os_mkdir(ENVDIR, S_IRWXU+S_IRWXG+S_IRWXO);
+
+    DB_ENV *env;
+    r = db_env_create(&env, 0);                                                         CKERR(r);
+    r = env->open(env, ENVDIR, envflags, S_IRWXU+S_IRWXG+S_IRWXO);                      CKERR(r);
+
+    DB *db;
+    r = db_create(&db, env, 0);                                                         CKERR(r);
+    r = db->open(db, NULL, namea, NULL, DB_BTREE, DB_AUTO_COMMIT|DB_CREATE, 0666);      CKERR(r);
+
+    // txn_begin; insert <a,a>; txn_abort
+    {
+        DB_TXN *txn;
+        r = env->txn_begin(env, NULL, &txn, 0);                                         CKERR(r);
+	DBT k={.data="a", .size=2};
+	DBT v={.data="a", .size=2};
+	r = db->put(db, txn, &k, &v, DB_YESOVERWRITE);                                  CKERR(r);
+        r = txn->abort(txn);                                                            CKERR(r);
+    }
+
+    // txn_begin; insert <a,b>;
+    {
+        DB_TXN *txn;
+        r = env->txn_begin(env, NULL, &txn, 0);                                         CKERR(r);
+	DBT k={.data="a", .size=2};
+	DBT v={.data="b", .size=2};
+	r = db->put(db, txn, &k, &v, DB_YESOVERWRITE);                                  CKERR(r);
+    }
+
+    // checkpoint
+    r = env->txn_checkpoint(env, 0, 0, 0);                                              CKERR(r);
+
+    // abort the process
+    abort();
+}
+
+static void run_recover (void) {
+    DB_ENV *env;
+    int r;
+
+    // strip the end_checkpoint from the log.  this will force recovery to run the over
+    // the entire log.
+    // TODO need an API to do this
+    struct stat s;
+    r = toku_stat(ENVDIR "/log000000000000.tokulog", &s);                               CKERR(r);
+    r = truncate(ENVDIR "/log000000000000.tokulog", s.st_size - 0x25);                  CKERR(r);
+
+    // run recovery
+    r = db_env_create(&env, 0);                                                         CKERR(r);
+    r = env->open(env, ENVDIR, envflags + DB_RECOVER, S_IRWXU+S_IRWXG+S_IRWXO);         CKERR(r);
+
+    // verify the data
+    DB *db;
+    r = db_create(&db, env, 0);                                                         CKERR(r);
+    r = db->open(db, NULL, namea, NULL, DB_UNKNOWN, DB_AUTO_COMMIT, 0666);              CKERR(r);
+    
+    DB_TXN *txn;
+    r = env->txn_begin(env, NULL, &txn, 0);                                             CKERR(r);
+    DBC *cursor;
+    r = db->cursor(db, txn, &cursor, 0);                                                CKERR(r);
+    DBT k, v;
+    r = cursor->c_get(cursor, dbt_init_malloc(&k), dbt_init_malloc(&v), DB_FIRST);
+    assert(r == DB_NOTFOUND);
+
+    r = cursor->c_close(cursor);                                                          CKERR(r);
+
+    r = env->close(env, 0);                                                             CKERR(r);
+    exit(0);
+}
+
+static void run_no_recover (void) {
+    DB_ENV *env;
+    int r;
+
+    r = db_env_create(&env, 0);                                                         CKERR(r);
+    r = env->open(env, ENVDIR, envflags & ~DB_RECOVER, S_IRWXU+S_IRWXG+S_IRWXO);        CKERR(r);
+    r = env->close(env, 0);                                                             CKERR(r);
+    exit(0);
+}
+
+const char *cmd;
+
+BOOL do_test=FALSE, do_recover=FALSE, do_recover_only=FALSE, do_no_recover = FALSE;
+
+static void test_parse_args (int argc, char *argv[]) {
+    int resultcode;
+    cmd = argv[0];
+    argc--; argv++;
+    while (argc>0) {
+	if (strcmp(argv[0], "-v") == 0) {
+	    verbose++;
+	} else if (strcmp(argv[0],"-q")==0) {
+	    verbose--;
+	    if (verbose<0) verbose=0;
+	} else if (strcmp(argv[0], "--test")==0) {
+	    do_test=TRUE;
+        } else if (strcmp(argv[0], "--recover") == 0) {
+            do_recover=TRUE;
+        } else if (strcmp(argv[0], "--recover-only") == 0) {
+            do_recover_only=TRUE;
+        } else if (strcmp(argv[0], "--no-recover") == 0) {
+            do_no_recover=TRUE;
+	} else if (strcmp(argv[0], "-h")==0) {
+	    resultcode=0;
+	do_usage:
+	    fprintf(stderr, "Usage:\n%s [-v|-q]* [-h] {--test | --recover } \n", cmd);
+	    exit(resultcode);
+	} else {
+	    fprintf(stderr, "Unknown arg: %s\n", argv[0]);
+	    resultcode=1;
+	    goto do_usage;
+	}
+	argc--;
+	argv++;
+    }
+}
+
+int test_main (int argc, char *argv[]) {
+    test_parse_args(argc, argv);
+    if (do_test) {
+	run_test();
+    } else if (do_recover) {
+        run_recover();
+    } else if (do_recover_only) {
+        run_recover();
+    } else if (do_no_recover) {
+        run_no_recover();
+    } 
+    return 0;
+}