/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
#ident "Copyright (c) 2007-2012 Tokutek Inc.  All rights reserved."
#ident "The technology is licensed by the Massachusetts Institute of Technology, Rutgers State University of New Jersey, and the Research Foundation of State University of New York at Stony Brook under United States of America Serial No. 11/760379 and to the patents and/or patent applications resulting from it."
// TODO

#include <sys/stat.h>
#include "test.h"


const int envflags = DB_INIT_MPOOL|DB_CREATE|DB_THREAD |DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN|DB_PRIVATE;

const char *namea="a.db";

static void run_test (void) {
    int r;

    r = system("rm -rf " ENVDIR);
    CKERR(r);
    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);

    DB_TXN *atxn;
    r = env->txn_begin(env, NULL, &atxn, 0);                                            CKERR(r);

    // create a live transaction so that recovery needs to come here
    DB_TXN *livetxn;
    r = env->txn_begin(env, NULL, &livetxn, 0);                                         CKERR(r);

    DB_TXN *btxn;
    r = env->txn_begin(env, atxn, &btxn, 0);                                            CKERR(r);

    r = btxn->commit(btxn, 0);                                                          CKERR(r);

    r = atxn->commit(atxn, 0);                                                          CKERR(r);

    r = db->close(db, 0);                                                               CKERR(r);

    r = env->txn_checkpoint(env, 0, 0, 0);                                              CKERR(r);

    // abort the process
    toku_hard_crash_on_purpose();
}

static void run_recover (void) {
    DB_ENV *env;
    int 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 = txn->commit(txn, 0); CKERR(r);

    r = db->close(db, 0); 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 * const 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 * const 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;
}