Inheritance diagram for RamFile:
Collaboration diagram for RamFile:
Public Member Functions | |
| RamFile (const String &name, uintptr_t inode, Filesystem *pParentFS, File *pParent) | |
| virtual void | truncate () |
| bool | canWrite () |
| Public Member Functions inherited from File | |
| File () | |
| File (const String &name, Time::Timestamp accessedTime, Time::Timestamp modifiedTime, Time::Timestamp creationTime, uintptr_t inode, class Filesystem *pFs, size_t size, File *pParent) | |
| virtual | ~File () |
| virtual uint64_t | read (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true) final |
| virtual uint64_t | write (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true) final |
| virtual physical_uintptr_t | getPhysicalPage (size_t offset) |
| virtual void | returnPhysicalPage (size_t offset) |
| virtual void | sync () |
| virtual void | sync (size_t offset, bool async) |
| Time::Timestamp | getCreationTime () |
| void | setCreationTime (Time::Timestamp t) |
| Time::Timestamp | getAccessedTime () |
| void | setAccessedTime (Time::Timestamp t) |
| Time::Timestamp | getModifiedTime () |
| void | setModifiedTime (Time::Timestamp t) |
| String | getName () const |
| void | getName (String &s) const |
| virtual String | getFullPath (bool bWithLabel=true) |
| size_t | getSize () |
| void | setSize (size_t sz) |
| virtual bool | isSymlink () |
| virtual bool | isDirectory () |
| virtual bool | isPipe () const |
| virtual bool | isFifo () const |
| virtual bool | isSocket () const |
| uintptr_t | getInode () const |
| virtual void | setInode (uintptr_t inode) |
| Filesystem * | getFilesystem () const |
| void | setFilesystem (Filesystem *pFs) |
| virtual void | fileAttributeChanged () |
| virtual void | increaseRefCount (bool bIsWriter) |
| virtual void | decreaseRefCount (bool bIsWriter) |
| void | setPermissions (uint32_t perms) |
| uint32_t | getPermissions () const |
| void | setUid (size_t uid) |
| size_t | getUid () const |
| void | setGid (size_t gid) |
| size_t | getGid () const |
| File * | getParent () const |
| virtual int | select (bool bWriting=false, int timeout=0) |
| void | monitor (Thread *pThread, Event *pEvent) |
| void | cullMonitorTargets (Thread *pThread) |
| virtual bool | supports (const size_t command) const |
| virtual int | command (const size_t command, void *buffer) |
| virtual size_t | getBlockSize () const |
| void | enableDirect () |
| void | disableDirect () |
| virtual void | preallocate (size_t expectedSize, bool zero=true) |
| virtual File * | open () |
Protected Member Functions | |
| virtual uintptr_t | readBlock (uint64_t location) |
| virtual void | pinBlock (uint64_t location) |
| virtual void | unpinBlock (uint64_t location) |
| Protected Member Functions inherited from File | |
| virtual bool | isBytewise () const |
| virtual uint64_t | readBytewise (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true) |
| virtual uint64_t | writeBytewise (uint64_t location, uint64_t size, uintptr_t buffer, bool bCanBlock=true) |
| virtual void | writeBlock (uint64_t location, uintptr_t addr) |
| virtual void | extend (size_t newSize) |
| virtual void | extend (size_t newSize, uint64_t location, uint64_t size) |
| void | dataChanged () |
| void | getFilesystemLabel (HugeStaticString &s) |
| void | evict (uint64_t location) |
| void | setPermissionsOnly (uint32_t perms) |
| void | setUidOnly (size_t uid) |
| void | setGidOnly (size_t gid) |
Private Attributes | |
| Cache | m_FileBlocks |
| size_t | m_nOwnerPid |
Additional Inherited Members | |
| Static Protected Member Functions inherited from File | |
| static void | writeCallback (CacheConstants::CallbackCause cause, uintptr_t loc, uintptr_t page, void *meta) |
| Protected Attributes inherited from File | |
| String | m_Name |
| Time::Timestamp | m_AccessedTime |
| Time::Timestamp | m_ModifiedTime |
| Time::Timestamp | m_CreationTime |
| uintptr_t | m_Inode |
| class Filesystem * | m_pFilesystem |
| size_t | m_Size |
| File * | m_pParent |
| size_t | m_nWriters |
| size_t | m_nReaders |
| size_t | m_Uid |
| size_t | m_Gid |
| uint32_t | m_Permissions |
| HashTable< DataCacheKey, uintptr_t > | m_DataCache |
| bool | m_bDirect |
| Cache | m_FillCache |
| Mutex | m_Lock |
| List< MonitorTarget * > | m_MonitorTargets |
Detailed Description
Member Function Documentation
|
protectedvirtual |
Pins the given page.
If your File subclass uses a Cache for readBlock, this method should be implemented to call Cache::pin. The VFS layer calls this method when it determines it is about to give a physical page to an upper layer, and therefore will be unable to guarantee the virtual page's dirty status is a correct reflection of the page's state.
Reimplemented from File.
|
protectedvirtual |
|
virtual |
Delete all data from the file.
Reimplemented from File.
Definition at line 51 of file RamFs.cc.
References Processor::information().
|
protectedvirtual |
Unpins the given page.
Reimplemented from File.
Definition at line 97 of file RamFs.cc.
References File::getName(), and RadixTree< T >::m_pRoot.
The documentation for this class was generated from the following files:
