void dbrm_clear()
{
DBRM dbrm;
VSS vss;
VBBM vbbm;
int err, vssShmid, vbbmShmid, txnID = 1, i;
struct shmid_ds vssShminfo[3], vbbmShminfo[3];
LBIDRange_v ranges;
LBIDRange range;
VBRange_v freelist;
err = dbrm.clear();
CPPUNIT_ASSERT(err == ERR_OK);
// grab the size of vss and vbbm shmsegs somehow
vss.lock(VSS::READ);
vbbm.lock(VBBM::READ);
vssShmid = vss.getShmid();
vbbmShmid = vbbm.getShmid();
err = shmctl(vssShmid, IPC_STAT, &vssShminfo[0]);
CPPUNIT_ASSERT(err == 0);
err = shmctl(vbbmShmid, IPC_STAT, &vbbmShminfo[0]);
CPPUNIT_ASSERT(err == 0);
vss.release(VSS::READ);
vbbm.release(VBBM::READ);
// do begin, write, end vbcopy for 150k blocks
cerr << endl << "Adding 150k block entries. ";
range.start = 1;
range.size = 150000;
ranges.push_back(range);
err = dbrm.beginVBCopy(txnID, ranges, freelist);
CPPUNIT_ASSERT(err == 0);
for (i = range.start; (uint32_t) i < range.size; i++) {
if (i % 50000 == 0)
cerr << " ... " << i;
err = dbrm.writeVBEntry(txnID, i, 1, i);
CPPUNIT_ASSERT(err == 0);
}
err = dbrm.endVBCopy(txnID, ranges);
CPPUNIT_ASSERT(err == 0);
cerr << " done." << endl;
// grab the sizes again
vss.lock(VSS::READ);
vbbm.lock(VBBM::READ);
vssShmid = vss.getShmid();
vbbmShmid = vbbm.getShmid();
err = shmctl(vssShmid, IPC_STAT, &vssShminfo[1]);
CPPUNIT_ASSERT(err == 0);
err = shmctl(vbbmShmid, IPC_STAT, &vbbmShminfo[1]);
CPPUNIT_ASSERT(err == 0);
vss.release(VSS::READ);
vbbm.release(VBBM::READ);
// make sure they grew
CPPUNIT_ASSERT(vssShminfo[0].shm_segsz < vssShminfo[1].shm_segsz);
CPPUNIT_ASSERT(vbbmShminfo[0].shm_segsz < vbbmShminfo[1].shm_segsz);
dbrm.clear();
// check that the new size is the same as the original
vss.lock(VSS::READ);
vbbm.lock(VBBM::READ);
vssShmid = vss.getShmid();
vbbmShmid = vbbm.getShmid();
err = shmctl(vssShmid, IPC_STAT, &vssShminfo[2]);
CPPUNIT_ASSERT(err == 0);
err = shmctl(vbbmShmid, IPC_STAT, &vbbmShminfo[2]);
CPPUNIT_ASSERT(err == 0);
vss.release(VSS::READ);
vbbm.release(VBBM::READ);
CPPUNIT_ASSERT(vssShminfo[0].shm_segsz == vssShminfo[2].shm_segsz);
CPPUNIT_ASSERT(vbbmShminfo[0].shm_segsz == vbbmShminfo[2].shm_segsz);
}
