/* -*- 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."
// verify that the table lock log entry is handled

#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
do_x1_shutdown (bool do_commit, bool do_abort) {
    int r;
    toku_os_recursive_delete(TOKU_TEST_FILENAME);
    toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU+S_IRWXG+S_IRWXO);
    DB_ENV *env;
    r = db_env_create(&env, 0);                                                         CKERR(r);
    r = env->open(env, TOKU_TEST_FILENAME, envflags, S_IRWXU+S_IRWXG+S_IRWXO);                      CKERR(r);

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

    DB *db;
    r = db_create(&db, env, 0);                                                         CKERR(r);
    r = db->open(db, txn, namea, NULL, DB_BTREE, DB_AUTO_COMMIT|DB_CREATE, 0666);       CKERR(r);
    r = txn->commit(txn, 0);                                                            CKERR(r);

    r = env->txn_begin(env, NULL, &txn, 0);                                             CKERR(r);

    r = db->pre_acquire_table_lock(db, txn);                                            CKERR(r);

    DBT a,b;
    dbt_init(&a, "a", 2);
    dbt_init(&b, "b", 2);
    r = db->put(db, txn, &a, &b, 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, 0);                                                        CKERR(r);
    }
    //printf("shutdown\n");
    toku_hard_crash_on_purpose();
}

static void
do_x1_recover (bool UU(did_commit)) {
    int r;

    DB_ENV *env;
    r = db_env_create(&env, 0);                                                             CKERR(r);
    r = env->open(env, TOKU_TEST_FILENAME, envflags|DB_RECOVER, 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);

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

    DBC *ca;
    r = dba->cursor(dba, txn, &ca, 0);                                                      CKERR(r);
    DBT aa,ab;
    dbt_init(&aa, NULL, 0);
    dbt_init(&ab, NULL, 0);
    int ra = ca->c_get(ca, &aa, &ab, DB_FIRST);                                             CKERR(r);
    if (did_commit) {
	assert(ra==0);
	// verify key-value pairs
	assert(aa.size==2);
	assert(ab.size==2);
	const char a[2] = "a";
	const char b[2] = "b";
        assert(memcmp(aa.data, &a, 2)==0);
        assert(memcmp(ab.data, &b, 2)==0);
        assert(memcmp(ab.data, &b, 2)==0);
	// make sure no other entries in DB
	assert(ca->c_get(ca, &aa, &ab, DB_NEXT) == DB_NOTFOUND);
	fprintf(stderr, "Both verified. Yay!\n");
    } else {
	// It wasn't committed (it also wasn't aborted), but a checkpoint happened.
	assert(ra==DB_NOTFOUND);
	fprintf(stderr, "Neither present. Yay!\n");
    }
    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
do_x1_recover_only (void) {
    int r;
    DB_ENV *env;

    r = db_env_create(&env, 0);                                                             CKERR(r);
    r = env->open(env, TOKU_TEST_FILENAME, envflags|DB_RECOVER, S_IRWXU+S_IRWXG+S_IRWXO);                          CKERR(r);
    r = env->close(env, 0);                                                                 CKERR(r);
    exit(0);
}

static void
do_x1_no_recover (void) {
    int r;
    DB_ENV *env;

    r = db_env_create(&env, 0);                                                             CKERR(r);
    r = env->open(env, TOKU_TEST_FILENAME, envflags & ~DB_RECOVER, S_IRWXU+S_IRWXG+S_IRWXO);
    assert(r == DB_RUNRECOVERY);
    r = env->close(env, 0);                                                                 CKERR(r);
    exit(0);
}

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;
    char *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) {
	do_x1_shutdown (true, false);
    } else if (do_abort) {
	do_x1_shutdown (false, false);
    } else if (do_explicit_abort) {
        do_x1_shutdown(false, true);
    } else if (do_recover_committed) {
	do_x1_recover(true);
    } else if (do_recover_aborted) {
	do_x1_recover(false);
    } else if (do_recover_only) {
        do_x1_recover_only();
    } else if (do_no_recover) {
        do_x1_no_recover();
    } 
#if 0
    else {
	do_test();
    }
#endif
    return 0;
}
