#include <fcntl.h>#include <cstdio>#include <cstring>#include <mutex>#include <set>#include <vector>#include "../../Shared/types.h"#include "Page.h"#include "Shared/Logger.h"
Include dependency graph for FileInfo.h: This graph shows which files directly or indirectly include this file:Go to the source code of this file.
Classes | |
| struct | File_Namespace::FileInfo |
Namespaces | |
| File_Namespace | |
Macros | |
| #define | DELETE_CONTINGENT (-1) |
| A FileInfo type has a file pointer and metadata about a file. More... | |
Macro Definition Documentation
◆ DELETE_CONTINGENT
| #define DELETE_CONTINGENT (-1) |
A FileInfo type has a file pointer and metadata about a file.
FileInfo A file info structure wraps around a file pointer in order to contain additional information/metadata about the file that is pertinent to the file manager.
The free pages (freePages) within a file must be tracked, and this is implemented using a basic STL set. The set ensures that no duplicate pages are included, and that the pages are sorted, faciliating the obtaining of consecutive free pages by a constant time pop operation, which may reduce the cost of DBMS disk accesses.
Helper functions are provided: size(), available(), and used().
Definition at line 48 of file FileInfo.h.
Referenced by File_Namespace::FileInfo::freePage(), and File_Namespace::FileInfo::openExistingFile().
