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/* -*- 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."

#include <toku_portability.h>
#include <string.h>

#include "logger/logcursor.h"
#include "test.h"

#if defined(HAVE_LIMITS_H)
# include <limits.h>
#endif
#if defined(HAVE_SYS_SYSLIMITS_H)
# include <sys/syslimits.h>
#endif

const char LOGDIR[100] = "./dir.test_logcursor";
const int FSYNC = 1;
const int NO_FSYNC = 0;

const char *namea="a.db";
const char *nameb="b.db";
const char *a="a";
const char *b="b";

const FILENUM fn_aname = {0};
const FILENUM fn_bname = {1};
BYTESTRING bs_aname, bs_bname;
BYTESTRING bs_a, bs_b;
BYTESTRING bs_empty;

static int create_logfiles(void);

static int test_0 (void);
static int test_1 (void);
static void usage(void) {
    printf("test_logcursors [OPTIONS]\n");
    printf("[-v]\n");
    printf("[-q]\n");
}

int test_main(int argc, const char *argv[]) {
    int i;
    for (i=1; i<argc; i++) {
        const char *arg = argv[i];
        if (arg[0] != '-')
            break;
	if (strcmp(arg, "-v")==0) {
	    verbose++;
	} else if (strcmp(arg, "-q")==0) {
	    verbose = 0;
	} else {
	    usage();
	    return 1;
	}
    }

    int r = 0;
    // start from a clean directory
    char rmrf_msg[100];
    sprintf(rmrf_msg, "rm -rf %s", LOGDIR);
    r = system(rmrf_msg);
    CKERR(r);
    toku_os_mkdir(LOGDIR, S_IRWXU+S_IRWXG+S_IRWXO);
    if ( (r=create_logfiles()) !=0 ) return r;

    if ( (r=test_0()) !=0 ) return r;
    if ( (r=test_1()) !=0 ) return r;

    r = system(rmrf_msg);
    CKERR(r);
    return r;
}

int test_0 (void) {
    int r=0;
    struct toku_logcursor *cursor;
    struct log_entry *entry;

    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);  assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);
    
    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);   assert(r==0);
    r = toku_logcursor_first(cursor, &entry);     if (verbose) printf("First Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);

    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);  assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);

    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);  assert(r==0);
    r = toku_logcursor_last(cursor, &entry);      if (verbose) printf("Last Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);

    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);  assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      assert(r==DB_NOTFOUND);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);

    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);  assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      assert(r==DB_NOTFOUND);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);

    r = toku_logcursor_create(&cursor, LOGDIR);    if (verbose) printf("create returns %d\n", r);  assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_next(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); assert(r==0);
    r = toku_logcursor_prev(cursor, &entry);      if (verbose) printf("Entry = %c\n", entry->cmd); 
    if ( verbose) {
        if ( r == DB_NOTFOUND ) printf("PASS\n"); 
        else printf("FAIL\n"); 
    }
    assert(r==DB_NOTFOUND);
    r = toku_logcursor_destroy(&cursor);          if (verbose) printf("destroy returns %d\n", r);  assert(r==0);

    return 0;
}

// test per-file version
int test_1 () {
    int r=0;
    char logfile[PATH_MAX];
    sprintf(logfile, "log000000000000.tokulog%d", TOKU_LOG_VERSION);

    struct toku_logcursor *cursor;
    struct log_entry *entry;

    r = toku_logcursor_create_for_file(&cursor, LOGDIR, logfile);   
    if (verbose) printf("create returns %d\n", r);   
    assert(r==0);

    r = toku_logcursor_last(cursor, &entry);      
    if (verbose) printf("entry = %c\n", entry->cmd); 
    assert(r==0); 
    assert(entry->cmd =='C');

    r = toku_logcursor_destroy(&cursor);          
    if (verbose) printf("destroy returns %d\n", r);  
    assert(r==0);

    return 0;
}

int create_logfiles() {
    int r = 0;

    TOKULOGGER logger;

    LSN lsn = {0};
    TXNID_PAIR txnid = {.parent_id64 = TXNID_NONE, .child_id64 = TXNID_NONE};
    LSN begin_checkpoint_lsn;

    uint32_t num_fassociate = 0;
    uint32_t num_xstillopen = 0;
    
    bs_aname.len = 4; bs_aname.data=(char *)"a.db";
    bs_bname.len = 4; bs_bname.data=(char *)"b.db";
    bs_a.len = 2; bs_a.data=(char *)"a";
    bs_b.len = 2; bs_b.data=(char *)"b";
    bs_empty.len = 0; bs_empty.data = NULL;


    // create and open logger
    r = toku_logger_create(&logger); assert(r==0);
    r = toku_logger_open(LOGDIR, logger); assert(r==0);

    // use old x1.tdb test log as basis
    //xbegin                    'b': lsn=1 parenttxnid=0 crc=00005f1f len=29
    txnid.parent_id64 = 1;
    toku_log_xbegin(logger, &lsn, NO_FSYNC, txnid, TXNID_PAIR_NONE);
    //fcreate                   'F': lsn=2 txnid=1 filenum=0 fname={len=4 data="a.db"} mode=0777 treeflags=0 crc=18a3d525 len=49
    toku_log_fcreate(logger, &lsn, NO_FSYNC, NULL, txnid, fn_aname, bs_aname, 0x0777, 0, 0, TOKU_DEFAULT_COMPRESSION_METHOD, 0);
    //commit                    'C': lsn=3 txnid=1 crc=00001f1e len=29
    toku_log_xcommit(logger, &lsn, FSYNC, NULL, txnid);
    //xbegin                    'b': lsn=4 parenttxnid=0 crc=00000a1f len=29
    txnid.parent_id64 = 4; // Choosing ids based on old test instead of what should happen now.
    toku_log_xbegin(logger, &lsn, NO_FSYNC, txnid, TXNID_PAIR_NONE);
    //fcreate                   'F': lsn=5 txnid=4 filenum=1 fname={len=4 data="b.db"} mode=0777 treeflags=0 crc=14a47925 len=49
    toku_log_fcreate(logger, &lsn, NO_FSYNC, NULL, txnid, fn_bname, bs_bname, 0x0777, 0, 0, TOKU_DEFAULT_COMPRESSION_METHOD, 0);
    //commit                    'C': lsn=6 txnid=4 crc=0000c11e len=29
    toku_log_xcommit(logger, &lsn, FSYNC, NULL, txnid);
    //xbegin                    'b': lsn=7 parenttxnid=0 crc=0000f91f len=29
    txnid.parent_id64 = 7; // Choosing ids based on old test instead of what should happen now.
    toku_log_xbegin(logger, &lsn, NO_FSYNC, txnid, TXNID_PAIR_NONE);
    //enq_insert                'I': lsn=8 filenum=0 xid=7 key={len=2 data="a\000"} value={len=2 data="b\000"} crc=40b863e4 len=45
    toku_log_enq_insert(logger, &lsn, NO_FSYNC, NULL, fn_aname, txnid, bs_a, bs_b);
    //begin_checkpoint          'x': lsn=9 timestamp=1251309957584197 crc=cd067878 len=29
    toku_log_begin_checkpoint(logger, &begin_checkpoint_lsn, NO_FSYNC, 1251309957584197, 0);
    //fassociate                'f': lsn=11 filenum=1 fname={len=4 data="b.db"} crc=a7126035 len=33
    toku_log_fassociate(logger, &lsn, NO_FSYNC, fn_bname, 0, bs_bname, 0);
    num_fassociate++;
    //fassociate                'f': lsn=12 filenum=0 fname={len=4 data="a.db"} crc=a70c5f35 len=33
    toku_log_fassociate(logger, &lsn, NO_FSYNC, fn_aname, 0, bs_aname, 0);
    num_fassociate++;
   //xstillopen                's': lsn=10 txnid=7 parent=0 crc=00061816 len=37 <- obsolete
    {
        FILENUMS filenums = {0, NULL};
        toku_log_xstillopen(logger, &lsn, NO_FSYNC, NULL, txnid, TXNID_PAIR_NONE,
                                0, filenums, 0, 0, 0,
                                ROLLBACK_NONE, ROLLBACK_NONE, ROLLBACK_NONE);
    }
    num_xstillopen++;
    //end_checkpoint            'X': lsn=13 txnid=9 timestamp=1251309957586872 crc=cd285c30 len=37
    toku_log_end_checkpoint(logger, &lsn, FSYNC, begin_checkpoint_lsn, 1251309957586872, num_fassociate, num_xstillopen);
    //enq_insert                'I': lsn=14 filenum=1 xid=7 key={len=2 data="b\000"} value={len=2 data="a\000"} crc=40388be4 len=45
    toku_log_enq_insert(logger, &lsn, NO_FSYNC, NULL, fn_bname, txnid, bs_b, bs_a);
    //commit                    'C': lsn=15 txnid=7 crc=00016d1e len=29
    toku_log_xcommit(logger, &lsn, FSYNC, NULL, txnid);

    // close logger
    r = toku_logger_close(&logger); assert(r==0);
    return r;
}