(PECL event >= 1.5.0)
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.
The number of bytes stored in an event buffer.
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.
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).