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README.md
README.md
 
 
alloc.h
alloc.h
 
 
block.h
block.h
 
 
log_entry.h
log_entry.h
 
 
tx_block.h
tx_block.h
 
 

README.md

This folder contains code for allocation.

The main entry point is the alloc.h file, which exposes class Allocator. This class is a per-thread data structure that is constructed and retrieved by File::get_local_allocator().

The class contains the following public members:

  • class BlockAllocator is a block allocator that allocates blocks of a fixed size less than or equal to 64 blocks.

  • class TxBlockAllocator allocates transaction blocks. It also keeps track of the currently using tx block in the shared memory. It depends on the BlockAllocator class to allocate blocks.

  • class LogEntryAllocator allocates log entries. It also depends on the BlockAllocator class to allocate blocks.