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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* Takes two params,
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* first, which lock use
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* second, which side to use (read or write)
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* third, lock or unlock it
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*/
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#include <iostream>
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#include <stdlib.h>
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#include <rwlock.h>
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using namespace std;
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using namespace rwlock;
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char* name;
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void usage()
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{
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cout << "Usage " << name << " which_lock_to_use which_side_to_use lock_or_unlock\n" <<
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" which_lock_to_use: 1=VSS 2=ExtentMap 3=FreeList 4=VBBM 5=CopyLocks\n";
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exit(1);
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}
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int main(int argc, char** argv)
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{
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uint32_t which_lock; // 1-5
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RWLock* rwlock;
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LockState state;
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name = argv[0];
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if (argc != 2)
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usage();
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if (strlen(argv[1]) != 1)
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usage();
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which_lock = atoi(argv[1]);
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if (which_lock < 1 || which_lock > 5)
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usage();
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rwlock = new RWLock(0x10000 * which_lock);
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state = rwlock->getLockState();
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cout << "readers = " << state.reading << endl
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<< "writers = " << state.writing << endl
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<< "readers waiting = " << state.readerswaiting << endl
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<< "writers waiting = " << state.writerswaiting << endl
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<< "mutex locked = " << (int) state.mutexLocked << endl;
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return 0;
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}
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