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vbucketmap.cc
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vbucketmap.cc
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/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
#include "config.h"
#include "vbucketmap.hh"
VBucketMap::VBucketMap(Configuration &config) :
buckets(new RCPtr<VBucket>[config.getMaxVbuckets()]),
bucketDeletion(new Atomic<bool>[config.getMaxVbuckets()]),
bucketVersions(new Atomic<uint16_t>[config.getMaxVbuckets()]),
persistenceCheckpointIds(new Atomic<uint64_t>[config.getMaxVbuckets()]),
size(config.getMaxVbuckets())
{
highPriorityVbSnapshot.set(false);
lowPriorityVbSnapshot.set(false);
for (size_t i = 0; i < size; ++i) {
bucketDeletion[i].set(false);
bucketVersions[i].set(static_cast<uint16_t>(-1));
persistenceCheckpointIds[i].set(0);
}
}
VBucketMap::~VBucketMap() {
delete[] buckets;
delete[] bucketDeletion;
delete[] bucketVersions;
delete[] persistenceCheckpointIds;
}
RCPtr<VBucket> VBucketMap::getBucket(uint16_t id) const {
static RCPtr<VBucket> emptyVBucket;
if (static_cast<size_t>(id) < size) {
return buckets[id];
} else {
return emptyVBucket;
}
}
void VBucketMap::addBucket(const RCPtr<VBucket> &b) {
if (static_cast<size_t>(b->getId()) < size) {
buckets[b->getId()].reset(b);
getLogger()->log(EXTENSION_LOG_INFO, NULL,
"Mapped new vbucket %d in state %s",
b->getId(), VBucket::toString(b->getState()));
} else {
throw new NeedMoreBuckets;
}
}
void VBucketMap::removeBucket(uint16_t id) {
if (static_cast<size_t>(id) < size) {
// Theoretically, this could be off slightly. In
// practice, this happens only on dead vbuckets.
buckets[id].reset();
}
}
std::vector<int> VBucketMap::getBuckets(void) const {
std::vector<int> rv;
for (size_t i = 0; i < size; ++i) {
RCPtr<VBucket> b(buckets[i]);
if (b) {
rv.push_back(b->getId());
}
}
return rv;
}
size_t VBucketMap::getSize(void) const {
return size;
}
bool VBucketMap::isBucketDeletion(uint16_t id) const {
assert(id < size);
return bucketDeletion[id].get();
}
bool VBucketMap::setBucketDeletion(uint16_t id, bool delBucket) {
assert(id < size);
return bucketDeletion[id].cas(!delBucket, delBucket);
}
uint16_t VBucketMap::getBucketVersion(uint16_t id) const {
assert(id < size);
return bucketVersions[id].get();
}
void VBucketMap::setBucketVersion(uint16_t id, uint16_t vb_version) {
assert(id < size);
bucketVersions[id].set(vb_version);
}
uint64_t VBucketMap::getPersistenceCheckpointId(uint16_t id) {
assert(id < size);
return persistenceCheckpointIds[id].get();
}
void VBucketMap::setPersistenceCheckpointId(uint16_t id, uint64_t checkpointId) {
assert(id < size);
persistenceCheckpointIds[id].set(checkpointId);
}
bool VBucketMap::isHighPriorityVbSnapshotScheduled(void) const {
return highPriorityVbSnapshot.get();
}
bool VBucketMap::setHighPriorityVbSnapshotFlag(bool highPrioritySnapshot) {
return highPriorityVbSnapshot.cas(!highPrioritySnapshot, highPrioritySnapshot);
}
bool VBucketMap::isLowPriorityVbSnapshotScheduled(void) const {
return lowPriorityVbSnapshot.get();
}
bool VBucketMap::setLowPriorityVbSnapshotFlag(bool lowPrioritySnapshot) {
return lowPriorityVbSnapshot.cas(!lowPrioritySnapshot, lowPrioritySnapshot);
}
void VBucketMap::addBuckets(const std::vector<VBucket*> &newBuckets) {
std::vector<VBucket*>::const_iterator it;
for (it = newBuckets.begin(); it != newBuckets.end(); ++it) {
RCPtr<VBucket> v(*it);
addBucket(v);
}
}