BloombergLP::bdlbb::InBlobStreamBuf

Synopsis

Declared in <bdlbb_blobstreambuf.h>

class InBlobStreamBuf
    : public std::streambuf

Base Classes

Name	Description
`std::streambuf`

Member Functions

Name	Description
`InBlobStreamBuf` [constructor]	Create a `BlobStreamBuf` using the specified `blob`. The behavior is undefined unless `blob` remains valid and externally unmodified for the lifetime of this `streambuf`.
`~InBlobStreamBuf` [destructor] [virtual]	Destroy this stream buffer.
`currentBufferIndex`	Return the index of the current buffer. The behavior is undefined unless the "streamed" blob has at least one buffer.
`data`	Return the address of the blob held by this stream buffer.
`previousBuffersLength`	Return the number of bytes contained in the buffers located before the current one. The behavior is undefined unless the "streamed" blob has at least one buffer.
`reset`	Reset the get areas. Optionally set the underlying `bdlbb::Blob` value to the optionally specified `blob` if `blob` is not 0. The behavior is undefined unless `blob` remains valid and externally unmodified for the lifetime of this `streambuf`.

Protected Member Functions

Name	Description
`overflow` [virtual]	Return `traits_type::eof()` unconditionally.
`pbackfail` [virtual]	Adjust the underlying blob and put the optionally specified character `c` at the newly valid `gptr()`. Return `c` (or `~traits_type::eof` if `c == traits_type::eof`) on success, and `traits_type::eof()` otherwise.
`seekoff` [virtual]	Set the location from which the next I/O operation indicated by the optionally specified `which` mode will occur to the specified `offset` position from the location indicated by the specified `fixedPosition`. Return the new offset on success, and `off_type(-1)` otherwise. `offset` may be negative. Note that this method will fail if `bsl::ios_base::out` is set.
`seekpos` [virtual]	Set the location from which the next I/O operation indicated by the optionally specified `which` mode will occur to the specified `position`. Return `position` on success, and `off_type(-1)` otherwise. Note that this method will fail if `bsl::ios_base::out` is set.
`showmanyc` [virtual]	Return the number of characters currently available for reading from this stream buffer, or 0 if there are none.
`sync` [virtual]	Return 0 unconditionally.
`underflow` [virtual]	Adjust the underlying blob so that the next read position is valid. Return the character at `gptr()` on success and `traits_type::eof()` otherwise.
`xsgetn` [virtual]	Read the specified `numChars` to the specified `destination`. Return the number of characters successfully read. The behavior is undefined unless 0 <= `numChars`.
`xsputn` [virtual]	Return 0 unconditionally.