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| | OSD_CachedFileSystem (const occ::handle< OSD_FileSystem > &theLinkedFileSystem=occ::handle< OSD_FileSystem >()) |
| | Constructor.
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| const occ::handle< OSD_FileSystem > & | LinkedFileSystem () const |
| | Return linked file system; initialized with OSD_FileSystem::DefaultFileSystem() by default.
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| void | SetLinkedFileSystem (const occ::handle< OSD_FileSystem > &theLinkedFileSystem) |
| | Sets linked file system.
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| bool | IsSupportedPath (const TCollection_AsciiString &theUrl) const override |
| | Returns TRUE if URL defines a supported protocol.
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| bool | IsOpenIStream (const std::shared_ptr< std::istream > &theStream) const override |
| | Returns TRUE if current input stream is opened for reading operations.
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| bool | IsOpenOStream (const std::shared_ptr< std::ostream > &theStream) const override |
| | Returns TRUE if current output stream is opened for writing operations.
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| std::shared_ptr< std::istream > | OpenIStream (const TCollection_AsciiString &theUrl, const std::ios_base::openmode theParams, const int64_t theOffset, const std::shared_ptr< std::istream > &theOldStream) override |
| | Opens stream for specified file URL for reading operations or returns previously created stream pointing to the same URL.
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| std::shared_ptr< std::ostream > | OpenOStream (const TCollection_AsciiString &theUrl, const std::ios_base::openmode theMode) override |
| | Opens stream for specified file URL for writing operations (std::ostream) by calling parent's method.
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| std::shared_ptr< std::streambuf > | OpenStreamBuffer (const TCollection_AsciiString &theUrl, const std::ios_base::openmode theMode, const int64_t theOffset=0, int64_t *theOutBufSize=nullptr) override |
| | Opens stream buffer for specified file URL.
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| | OSD_FileSystem () |
| | Constructor.
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| | ~OSD_FileSystem () override |
| | Destructor.
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 Public Member Functions inherited from Standard_Transient |
| | Standard_Transient () |
| | Empty constructor.
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| | Standard_Transient (const Standard_Transient &) |
| | Copy constructor – does nothing.
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| Standard_Transient & | operator= (const Standard_Transient &) |
| | Assignment operator, needed to avoid copying reference counter.
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| virtual | ~Standard_Transient ()=default |
| | Destructor must be virtual.
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| virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| | Returns a type descriptor about this object.
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| bool | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| | Returns a true value if this is an instance of Type.
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| bool | IsInstance (const char *const theTypeName) const |
| | Returns a true value if this is an instance of TypeName.
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| bool | IsKind (const opencascade::handle< Standard_Type > &theType) const |
| | Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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| bool | IsKind (const char *const theTypeName) const |
| | Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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| Standard_Transient * | This () const |
| | Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
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| int | GetRefCount () const noexcept |
| | Get the reference counter of this object.
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| void | IncrementRefCounter () noexcept |
| | Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.
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| int | DecrementRefCounter () noexcept |
| | Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.
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| virtual void | Delete () const |
| | Memory deallocator for transient classes.
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File system keeping last stream created by linked file system (OSD_FileSystem::DefaultFileSystem() by default) to be reused for opening a stream with the same URL. Note that as file is kept in opened state, application will need destroying this object to ensure all files being closed. This interface could be handy in context of reading numerous objects pointing to the same file (at different offset). Make sure to create a dedicated OSD_CachedFileSystem for each working thread to avoid data races.
1.10.0