Chromium Embedded Framework (CEF)  115.2.0+g096e3eb+chromium-115.0.5790.13
CefReadHandler Class Referenceabstract

Interface the client can implement to provide a custom stream reader. More...

#include "include/cef_stream.h"

Inheritance diagram for CefReadHandler:
CefBaseRefCounted CefByteReadHandler

Public Member Functions

virtual size_t Read (void *ptr, size_t size, size_t n)=0
 Read raw binary data. More...
 
virtual int Seek (int64_t offset, int whence)=0
 Seek to the specified offset position. More...
 
virtual int64_t Tell ()=0
 Return the current offset position. More...
 
virtual int Eof ()=0
 Return non-zero if at end of file. More...
 
virtual bool MayBlock ()=0
 Return true if this handler performs work like accessing the file system which may block. More...
 
- Public Member Functions inherited from CefBaseRefCounted
virtual void AddRef () const =0
 Called to increment the reference count for the object. More...
 
virtual bool Release () const =0
 Called to decrement the reference count for the object. More...
 
virtual bool HasOneRef () const =0
 Returns true if the reference count is 1. More...
 
virtual bool HasAtLeastOneRef () const =0
 Returns true if the reference count is at least 1. More...
 

Additional Inherited Members

- Protected Member Functions inherited from CefBaseRefCounted
virtual ~CefBaseRefCounted ()
 

Detailed Description

Interface the client can implement to provide a custom stream reader.

The methods of this class may be called on any thread.

Member Function Documentation

◆ Eof()

virtual int CefReadHandler::Eof ( )
pure virtual

Return non-zero if at end of file.

Implemented in CefByteReadHandler.

◆ MayBlock()

virtual bool CefReadHandler::MayBlock ( )
pure virtual

Return true if this handler performs work like accessing the file system which may block.

Used as a hint for determining the thread to access the handler from.

Implemented in CefByteReadHandler.

◆ Read()

virtual size_t CefReadHandler::Read ( void *  ptr,
size_t  size,
size_t  n 
)
pure virtual

Read raw binary data.

Implemented in CefByteReadHandler.

◆ Seek()

virtual int CefReadHandler::Seek ( int64_t  offset,
int  whence 
)
pure virtual

Seek to the specified offset position.

|whence| may be any one of SEEK_CUR, SEEK_END or SEEK_SET. Return zero on success and non-zero on failure.

Implemented in CefByteReadHandler.

◆ Tell()

virtual int64_t CefReadHandler::Tell ( )
pure virtual

Return the current offset position.

Implemented in CefByteReadHandler.


The documentation for this class was generated from the following file: