// test delboth commit before checkpoint

#include "test.h"


const int envflags = DB_INIT_MPOOL|DB_CREATE|DB_THREAD |DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN|DB_PRIVATE;
char *namea="a.db";

static void
run_test (BOOL do_commit, BOOL do_abort) {
    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 *dba;
    r = db_create(&dba, env, 0);                                                        CKERR(r);
    r = dba->open(dba, NULL, namea, NULL, DB_BTREE, DB_AUTO_COMMIT|DB_CREATE, 0666);    CKERR(r);

    // insert (i,i) pairs
    DB_TXN *txn;
    r = env->txn_begin(env, NULL, &txn, 0);                                             CKERR(r);
    for (int i=0; i<256; i++) {
        unsigned char c = (unsigned char) i;
	DBT k = {.data=&c, .size=sizeof c};
	DBT v = {.data=&c, .size=sizeof c};
	r = dba->put(dba, txn, &k, &v, 0);                                              CKERR(r);
    }
    r = txn->commit(txn, 0);                                                            CKERR(r);

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

    // delete (128,128)
    r = env->txn_begin(env, NULL, &txn, 0);                                             CKERR(r);
    {
        unsigned char c = 128;
        DBT k = {.data=&c, .size=sizeof c};
        DBT v = {.data=&c, .size=sizeof c};
        r = dba->delboth(dba, txn, &k, &v, 0);                                          CKERR(r);
    }

    if (do_commit) {
	r = txn->commit(txn, 0);                                                        CKERR(r);
    } else if (do_abort) {
        r = txn->abort(txn);                                                            CKERR(r);
        
        // force an fsync of the log
        r = env->txn_begin(env, NULL, &txn, 0);                                         CKERR(r);
        r = txn->commit(txn, DB_TXN_SYNC);                                              CKERR(r);
    }
    //printf("shutdown\n");
    toku_hard_crash_on_purpose();
}

static void
run_recover (BOOL UU(did_commit)) {
    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);

    // verify all but (128,128) exist
    DB *dba;
    r = db_create(&dba, env, 0);                                                            CKERR(r);
    r = dba->open(dba, NULL, namea, NULL, DB_BTREE, DB_AUTO_COMMIT|DB_CREATE, 0666);        CKERR(r);
    DB_TXN *txn;
    r = env->txn_begin(env, NULL, &txn, 0);                                                 CKERR(r);
    DBC *ca;
    r = dba->cursor(dba, txn, &ca, 0);                                                      CKERR(r);
    int i;
    for (i=0; ; i++) {
        if (i == 128)
            continue;
        DBT k = {.size = 0}, v = { .size = 0};
        r = ca->c_get(ca, &k, &v, DB_NEXT);
        if (r != 0)
            break;
        assert(k.size == 1 && v.size == 1);
        unsigned char kk, vv;
        memcpy(&kk, k.data, k.size); 
        memcpy(&vv, v.data, v.size);
        assert(kk == i);
        assert(vv == i);
    }
    assert(i == 256);

    r = ca->c_close(ca);                                                                    CKERR(r);

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

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

    r = env->close(env, 0);                                                                 CKERR(r);
    exit(0);
}

static void
run_recover_only (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);
}

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);
    assert(r == DB_RUNRECOVERY);
    r = env->close(env, 0);                                                                 CKERR(r);
    exit(0);
}

const char *cmd;

BOOL do_commit=FALSE, do_abort=FALSE, do_explicit_abort=FALSE, do_recover_committed=FALSE,  do_recover_aborted=FALSE, do_recover_only=FALSE, do_no_recover = FALSE;

static void
x1_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], "--commit")==0 || strcmp(argv[0], "--test") == 0) {
	    do_commit=TRUE;
	} else if (strcmp(argv[0], "--abort")==0) {
	    do_abort=TRUE;
	} else if (strcmp(argv[0], "--explicit-abort")==0) {
	    do_explicit_abort=TRUE;
	} else if (strcmp(argv[0], "--recover-committed")==0 || strcmp(argv[0], "--recover") == 0) {
	    do_recover_committed=TRUE;
	} else if (strcmp(argv[0], "--recover-aborted")==0) {
	    do_recover_aborted=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] {--commit | --abort | --explicit-abort | --recover-committed | --recover-aborted } \n", cmd);
	    exit(resultcode);
	} else {
	    fprintf(stderr, "Unknown arg: %s\n", argv[0]);
	    resultcode=1;
	    goto do_usage;
	}
	argc--;
	argv++;
    }
    {
	int n_specified=0;
	if (do_commit)            n_specified++;
	if (do_abort)             n_specified++;
	if (do_explicit_abort)    n_specified++;
	if (do_recover_committed) n_specified++;
	if (do_recover_aborted)   n_specified++;
	if (do_recover_only)      n_specified++;
	if (do_no_recover)        n_specified++;
	if (n_specified>1) {
	    printf("Specify only one of --commit or --abort or --recover-committed or --recover-aborted\n");
	    resultcode=1;
	    goto do_usage;
	}
    }
}

int
test_main (int argc, char * const argv[])
{
    x1_parse_args(argc, argv);
    if (do_commit) {
	run_test (TRUE, FALSE);
    } else if (do_abort) {
	run_test (FALSE, FALSE);
    } else if (do_explicit_abort) {
        run_test(FALSE, TRUE);
    } else if (do_recover_committed) {
	run_recover(TRUE);
    } else if (do_recover_aborted) {
	run_recover(FALSE);
    } else if (do_recover_only) {
        run_recover_only();
    } else if (do_no_recover) {
        run_no_recover();
    } 
#if 0
    else {
	do_test();
    }
#endif
    return 0;
}
