The EventBuffer class
EventBuffer
&reftitle.intro;
EventBuffer
represents Libevent's "evbuffer", an utility functionality for buffered
I/O.
Event buffers are meant to be generally useful for doing the "buffer" part
of buffered network I/O.
&reftitle.classsynopsis;
EventBuffer
EventBuffer
Constants
const
int
EventBuffer::EOL_ANY
0
const
int
EventBuffer::EOL_CRLF
1
const
int
EventBuffer::EOL_CRLF_STRICT
2
const
int
EventBuffer::EOL_LF
3
const
int
EventBuffer::PTR_SET
0
const
int
EventBuffer::PTR_ADD
1
&Properties;
public
readonly
int
length
public
readonly
int
contiguous_space
&Methods;
&reftitle.properties;
length
The number of bytes stored in an event buffer.
contiguous_space
The number of bytes stored contiguously at the front of the buffer. The
bytes in a buffer may be stored in multiple separate chunks of memory;
the property returns the number of bytes currently stored in the first
chunk.
&reftitle.constants;
EventBuffer::EOL_ANY
The end of line is any sequence of any number of carriage return and
linefeed characters. This format is not very useful; it exists mainly
for backward compatibility.
EventBuffer::EOL_CRLF
The end of the line is an optional carriage return, followed by a
linefeed. (In other words, it is either a
"\r\n"
or a
"\n"
.) This format is useful in parsing text-based Internet protocols,
since the standards generally prescribe a
"\r\n"
line-terminator, but nonconformant clients sometimes say just
"\n"
.
EventBuffer::EOL_CRLF_STRICT
The end of a line is a single carriage return, followed by a single
linefeed. (This is also known as
"\r\n"
. The ASCII values are
0x0D
0x0A
).
EventBuffer::EOL_LF
The end of a line is a single linefeed character. (This is also known
as
"\n"
. It is ASCII value is
0x0A
.)
EventBuffer::PTR_SET
Flag used as argument of
EventBuffer::setPosition
method. If this flag specified, the position pointer is moved to an
absolute position within the buffer.
EventBuffer::PTR_ADD
The same as
EventBuffer::PTR_SET
, except this flag causes
EventBuffer::setPosition
method to move position forward up to the specified number of
bytes(instead of setting absolute position).
&reference.event.entities.eventbuffer;