stasis-aries-wal/test/lladd/check_bTree.c

317 lines
9 KiB
C
Raw Normal View History

2005-05-05 21:26:40 +00:00
/*---
This software is copyrighted by the Regents of the University of
California, and other parties. The following terms apply to all files
associated with the software unless explicitly disclaimed in
individual files.
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose,
provided that existing copyright notices are retained in all copies
and that this notice is included verbatim in any distributions. No
written agreement, license, or royalty fee is required for any of the
authorized uses. Modifications to this software may be copyrighted by
their authors and need not follow the licensing terms described here,
provided that the new terms are clearly indicated on the first page of
each file where they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND
THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
---*/
#include <config.h>
#include <check.h>
#include "../check_includes.h"
#include <lladd/transactional.h>
2005-11-08 20:55:18 +00:00
#include "../../src/lladd/page/fixed.h"
2005-05-05 21:26:40 +00:00
#include <assert.h>
#include <limits.h>
#include <math.h>
#include <pthread.h>
#define LOG_NAME "check_bTree.log"
#define NUM_ENTRIES 100000
/** @test
*/
2006-05-25 00:02:46 +00:00
void testFunctions();
int SimpleExample();
2005-11-08 20:55:18 +00:00
START_TEST(bTreeTest)
{
2005-11-08 20:55:18 +00:00
Tinit();
testFunctions();
SimpleExample();
// printf("\n end of practice run\n");
Tdeinit();
} END_TEST
2005-11-08 20:55:18 +00:00
/* This only takes in a page that is already initialized as a fixed page.
and has been initialized as a BTree Node, which involves placing an
index to tell how many entries are currently valid.
For now it will just return false if you try to add something to it
when it is already full.
This method doesn't use the Slot value of rid!
We make a copy of rid_caller so that the caller's copy doesn't change.
*/
int insert(Page* p, recordid rid_caller, int valueIn){
printf ("\nbegin insert\n");
int DEBUG = 0;
int DEBUGERROR = 1;
int DEBUGERROR2 = 0;
int DEBUGSTATEMENTS = 1;
int DEBUGMALLOC = 1; // 1 makes it malloc the space
2005-11-08 20:55:18 +00:00
//printf("\npage->id = %d\n", p->id);
// make a copy of the rid - so we don't effect the caller's copy
recordid rid = rid_caller;
// if DEBUGERROR ==1 this causes a seg fault below!
if (DEBUGERROR) {printf("\n***page->id = %ld\n", p->id);}
2005-11-08 20:55:18 +00:00
printf("\n***rid.page = %d\n\n", rid.page);
if(DEBUG) {printf("\nrid.page = %d\n", rid.page);}
if(DEBUG) {printf("\nrid.slot = %d\n", rid.slot);}
2005-11-08 20:55:18 +00:00
// Figure out how many entries are in the node
rid.slot = 0; // need to get the variable in slot 0
byte * countBuff;/// AHHH - i wasn't mallocing space for this!
if(DEBUGMALLOC ) {countBuff = (byte *) malloc (sizeof(int));}
if (DEBUGSTATEMENTS) {printf("\nDebug1\n");}
fixedRead(p, rid, countBuff); // read the value of count from slot 0
if (DEBUGSTATEMENTS) {printf("\nDebug2\n");}
int * countInt = (int *) countBuff; // cast it to an int *
// set rid.slot to be the max slot entry used.
rid.slot = *countInt;
printf("\nrid2slot = %d\n", rid.slot);
// *recordcount_ptr(p) = last accessible index on the page.
int max_index = *recordcount_ptr(p);
//THESE LINES WERE CAUSING A SEGFAULT! *******************************************
if (DEBUGERROR2) {printf("\nx = %d\n", max_index);} // This causes a segfault after Debug2
2005-11-08 20:55:18 +00:00
// HACK! TO FIX THE ABOVE PROBLEM!
max_index = 1021;
// assert that max_index is greater than our record of how many
// entries we currently have on the page.
assert(max_index>rid.slot);
// check to see if we have room to add the entry.
if (rid.slot == max_index){
// we can't add any more entries to this node
return -1;
}
// the default location to put the new value is location 1.
int insertLocation = 1;
// Iterating DOWN through the slots. Stop when we reach 0.
// Will also break out of the while loop if we've found where
// to insert the new value.
while ( (rid.slot >= 1) && (insertLocation == 1)){
// TODO: JuSt haven't filled in the code here yet...
insertLocation =2;
}
// convert the input valueIn into a byte array
2006-05-25 00:02:46 +00:00
// byte * valueInBuff = (byte *) & valueIn;
2005-11-08 20:55:18 +00:00
// get the rid ready to write to the insertLocation (determined above)
rid.slot = insertLocation;
// fixedWrite(p, rid, valueInBuff); // page/fixed.c:58: checkRid: Assertion `page->id == rid.page' failed.
printf("\n***page->id = %ld\n", p->id);
2005-11-08 20:55:18 +00:00
printf("\n***rid.page = %d\n", rid.page);
2006-05-25 00:02:46 +00:00
return 0;
2005-11-08 20:55:18 +00:00
}
/* This takes a page that is already initialized and a
corresponding rid and initalizes the count value for
it to be a BTreeNode. Just puts the value 0 in the
first index of the page.
*/
2006-05-25 00:02:46 +00:00
void initializeNewBTreeNode(Page* p, recordid rid){
2005-11-08 20:55:18 +00:00
// need access to the first slot
rid.slot = 0;
// prepare the value to go into the first slot
int countInt = 0;
byte * countBuff = (byte *) & countInt;
2005-11-08 20:55:18 +00:00
// write the count out
fixedWrite(p, rid, countBuff);
}
2006-05-25 00:02:46 +00:00
void testFunctions(){
2005-11-08 20:55:18 +00:00
printf("testing functions");
2005-11-08 20:55:18 +00:00
// getting things ready
int xid = Tbegin();
recordid rid1 = TfixedPageAlloc(xid, sizeof(int)); // this does the initialize
int pageid1 = rid1.page;
Page * p1 = loadPage(xid, pageid1);
2005-11-08 20:55:18 +00:00
// calling functions
2005-11-08 20:55:18 +00:00
initializeNewBTreeNode(p1, rid1);
insert(p1, rid1, 3);
// cleaning up
releasePage(p1);
Tcommit(xid);
}
2005-11-08 20:55:18 +00:00
2005-05-05 21:26:40 +00:00
int SimpleExample(){
int DEBUGP = 0;
2006-05-25 00:02:46 +00:00
// int DEBUGT = 0;
// int DEBUGA = 0;
int xid = Tbegin();
2005-11-08 20:55:18 +00:00
/* Where to find stuff
* ****************************
* TpageAlloc -> lladd/src/lladd/operations/pageOperations.c
* TfixedPageAlloc -> lladd/src/lladd/operations/pageOperations.c
* fixedPageInitailze -> lladd/src/lladd/page/fixed.c
*/
2005-11-08 20:55:18 +00:00
recordid rid1 = TfixedPageAlloc(xid, sizeof(int)); // this does the initialize
2005-11-08 20:55:18 +00:00
int pageid1 = rid1.page;
Page * p1 = loadPage(xid, pageid1);
2006-09-25 22:33:52 +00:00
if(DEBUGP) { printf("\n**** page->id = %ld\n", p1->id);}
2005-11-08 20:55:18 +00:00
/* check consistency between rid & page's values
* for number of slots and record size */
assert (rid1.slot == fixedPageCount(p1));
assert (rid1.size == fixedPageRecordSize(p1));
assert (p1->id == rid1.page);
2005-11-08 20:55:18 +00:00
/* check to make sure page is recorded as a FIXED_PAGE */
assert( *page_type_ptr(p1) == FIXED_PAGE);
2006-05-25 00:02:46 +00:00
if (DEBUGP) { printf("\n%d\n", rid1.page); }
2005-11-08 20:55:18 +00:00
byte * b1 = (byte *) malloc (sizeof (int));
byte * b2 = (byte *) malloc (sizeof (int));
byte * b3 = (byte *) malloc (sizeof (int));
int x = *recordcount_ptr(p1);
int y = rid1.slot;
int z = 256;
b1 = (byte *) & x;
b2 = (byte *) & y;
b3 = (byte *) & z;
int * x1 = (int *) b1;
2005-11-08 20:55:18 +00:00
if (DEBUGP) { printf("\nx = %d\n", x);}
if (DEBUGP) { printf("\nb1 = %d\n", *b1);}
if (DEBUGP) { printf("\nx1 = %d\n", *x1);}
if (DEBUGP) { printf("\ny = %d\n", y);}
if (DEBUGP) { printf("\nb2 = %d\n", *b2);}
if (DEBUGP) { printf("\nz = %d\n", z);}
if (DEBUGP) { printf("\nb3 = %d\n", *b3);}
2005-11-08 20:55:18 +00:00
recordid rid2 = rid1;
rid2.slot = 0;
2005-11-08 20:55:18 +00:00
fixedWrite(p1, rid2, b1);
fixedRead(p1, rid2, b2);
if (DEBUGP) { printf("\nb2** = %d\n",*((int *) b2));}
2005-11-08 20:55:18 +00:00
// initializeNewBTreeNode(p1, rid1);
releasePage(p1);
Tcommit(xid);
return 0;
}
2005-05-05 21:26:40 +00:00
/** @test
*/
#define NUM_ENTRIES_XACT 10000
2005-05-05 21:26:40 +00:00
Suite * check_suite(void) {
Suite *s = suite_create("bTree");
/* Begin a new test */
TCase *tc = tcase_create("simple");
tcase_set_timeout(tc, 0); // disable timeouts if test takes more than 2 sec - it would get killed
2005-05-05 21:26:40 +00:00
/* Sub tests are added, one per line, here */
tcase_add_test(tc, bTreeTest);
2005-11-08 20:55:18 +00:00
// tcase_add_test(tc, simpleLinearHashTest); // put back in if playing with hashtable
2005-05-05 21:26:40 +00:00
/* --------------------------------------------- */
tcase_add_checked_fixture(tc, setup, teardown);// leave stuff below here.
suite_add_tcase(s, tc);
return s;
}
#include "../check_setup.h"