Search Toolkit Book for SIoStreamEmbeddedStreamReaderWriter
Inheritance diagram for SIoStreamEmbeddedStreamReaderWriter:
Collaboration diagram for SIoStreamEmbeddedStreamReaderWriter:
Public Member Functions | |
| SIoStreamEmbeddedStreamReaderWriter (SNetStorageObjectImpl &impl) | |
| ERW_Result | Write (const void *buf, size_t count, size_t *written) override |
| Write up to "count" bytes from the buffer pointed to by the "buf" argument onto the output device. More... | |
| Public Member Functions inherited from SEmbeddedStreamReaderWriter | |
| SEmbeddedStreamReaderWriter (SNetStorageObjectImpl &impl) | |
| ERW_Result | Read (void *b, size_t c, size_t *r) override |
| Read as many as "count" bytes into a buffer pointed to by the "buf" argument. More... | |
| ERW_Result | PendingCount (size_t *c) override |
| Via parameter "count" (which is guaranteed to be supplied non-NULL) return the number of bytes that are ready to be read from the input device without blocking. More... | |
| ERW_Result | Flush () override |
| Flush pending data (if any) down to the output device. More... | |
| void | Close () override |
| void | Abort () override |
| Public Member Functions inherited from IReader | |
| virtual ERW_Result | Pushback (const void *buf, size_t count, void *del_ptr=0) |
| This method gets called by RStream buffer destructor to return buffered yet still unread (from the stream) portion of data back to the device. More... | |
| virtual | ~IReader () |
| Public Member Functions inherited from IWriter | |
| virtual | ~IWriter () |
Detailed Description
Definition at line 57 of file netstorage.cpp.
Constructor & Destructor Documentation
◆ SIoStreamEmbeddedStreamReaderWriter()
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inline |
Definition at line 59 of file netstorage.cpp.
Member Function Documentation
◆ Write()
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inlineoverridevirtual |
Write up to "count" bytes from the buffer pointed to by the "buf" argument onto the output device.
Always store the number of bytes actually written, or 0 if "count" has been passed as 0 ("buf" must be ignored in this case), via the "bytes_written" pointer, if provided non-NULL. Note that the method can return non-eRW_Success in case of an I/O error along with indicating (some) data delivered to the output device (and reflected in "*bytes_written").
- Note
- Apparently, may not return eRW_Success if hasn't been able to write "count" bytes as requested, and "bytes_written" was passed as NULL.
- When returning "*bytes_written" as zero for a non-zero "count" requested, the return status should not indicate eRW_Success.
- Warning
- "*bytes_written" may never be returned greater than "count".
- Attention
- It is implementation-dependent whether the call blocks until the entire buffer or only some data has been written out. In general, it is advised that this call is made within a loop that checks for errors and proceeds with the writing until the required amount of data has been sent.
Reimplemented from SEmbeddedStreamReaderWriter.
Definition at line 61 of file netstorage.cpp.
References buf, count, eRW_Success, and SEmbeddedStreamReaderWriter::Write().
The documentation for this struct was generated from the following file:
- src/connect/services/netstorage.cpp
