| 53 |
|
int storageLayout, |
| 54 |
|
long long int memSize, |
| 55 |
|
int blockCapacity) |
| 56 |
< |
: SnapshotManager(storageLayout), info_(info), memSize_(memSize), |
| 57 |
< |
blockCapacity_(blockCapacity), activeBlocks_(blockCapacity_, -1), |
| 56 |
> |
: SnapshotManager(storageLayout), info_(info), |
| 57 |
> |
blockCapacity_(blockCapacity), memSize_(memSize), |
| 58 |
> |
activeBlocks_(blockCapacity_, -1), |
| 59 |
|
activeRefCount_(blockCapacity_, 0) { |
| 60 |
|
|
| 61 |
|
nAtoms_ = info->getNGlobalAtoms(); |
| 164 |
|
|
| 165 |
|
bool BlockSnapshotManager::loadBlock(int block) { |
| 166 |
|
std::vector<int>::iterator i = findActiveBlock(block); |
| 167 |
< |
bool loadSuccess; |
| 167 |
> |
bool loadSuccess(false); |
| 168 |
|
if (i != activeBlocks_.end()) { |
| 169 |
< |
//if block is already in memory, just increast the reference count |
| 169 |
> |
// If the block is already in memory, just increase the |
| 170 |
> |
// reference count: |
| 171 |
|
++activeRefCount_[i - activeBlocks_.begin()]; |
| 172 |
|
loadSuccess = true; |
| 173 |
|
} else if (getNActiveBlocks() < blockCapacity_){ |
| 174 |
< |
//if number of active blocks is less than the block capacity, just load it |
| 174 |
> |
// If the number of active blocks is less than the block |
| 175 |
> |
// capacity, just load the block: |
| 176 |
|
internalLoad(block); |
| 177 |
|
loadSuccess = true; |
| 178 |
|
} else if ( hasZeroRefBlock() ) { |
| 179 |
< |
//if already reach the block capacity, need to unload a block with 0 reference |
| 179 |
> |
// If we have already reached the block capacity, we need to |
| 180 |
> |
// unload a block with 0 references: |
| 181 |
|
int zeroRefBlock = getFirstZeroRefBlock(); |
| 182 |
|
assert(zeroRefBlock != -1); |
| 183 |
|
internalUnload(zeroRefBlock); |
| 184 |
|
internalLoad(block); |
| 185 |
|
} else { |
| 186 |
< |
//reach the capacity and all blocks in memory are not zero reference |
| 186 |
> |
// We have reached capacity and all blocks in memory are have |
| 187 |
> |
// non-zero references: |
| 188 |
|
loadSuccess = false; |
| 189 |
< |
} |
| 185 |
< |
|
| 189 |
> |
} |
| 190 |
|
return loadSuccess; |
| 191 |
|
} |
| 192 |
|
|
