/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*======
This file is part of PerconaFT.


Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.

    PerconaFT is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License, version 2,
    as published by the Free Software Foundation.

    PerconaFT is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.

----------------------------------------

    PerconaFT is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License, version 3,
    as published by the Free Software Foundation.

    PerconaFT is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
======= */

#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."

// force a checkpoint to span multiple tokulog files.  in other words, the begin checkpoint log entry and the
// end checkpoint log entry for the same checkpoint are in different log files.

#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;

static void test_checkpoint_callback(void *extra) {
    int r;
    DB_ENV *env = (DB_ENV *) extra;

    // create and commit a bunch of transactions.  the last commit fsync's the log.  since the log is
    // really small, a new log file is created before the end checkpoint is logged. 
    int i;
    for (i=0; i<100; i++) {
        DB_TXN *txn = NULL;
        r = env->txn_begin(env, NULL, &txn, 0);                                        CKERR(r);
        r = txn->commit(txn, i == 99 ? DB_TXN_SYNC : 0);                               CKERR(r);
    }
}

static void test_checkpoint_callback2(void *extra) {
    (void) extra;
}

static void run_test (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 = NULL;
    r = db_env_create(&env, 0);                                                         CKERR(r);

    db_env_set_checkpoint_callback(test_checkpoint_callback, env);
    db_env_set_checkpoint_callback2(test_checkpoint_callback2, env);

    r = env->set_lg_max(env, 1024);                                                     CKERR(r);
    r = env->open(env, TOKU_TEST_FILENAME, envflags, S_IRWXU+S_IRWXG+S_IRWXO);                      CKERR(r);

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

    r = env->txn_checkpoint(env, 0, 0, 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 run_recover (bool did_commit) {
    (void) did_commit;
    int r;
    DB_ENV *env = NULL;
    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);
}

static void run_recover_only (void) {
    int r;
    DB_ENV *env = NULL;
    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);
}

static void run_no_recover (void) {
    int r;
    DB_ENV *env = NULL;
    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);
}

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 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], "--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[]) {
    test_parse_args(argc, argv);
    if (do_commit) {
	run_test(true, false);
    } else if (do_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();
    }
    return 0;
}