public class Poll
extends java.lang.Object
Modifier and Type | Field and Description |
---|---|
static int |
APR_NO_DESC
Used in apr_pollfd_t to determine what the apr_descriptor is
apr_datatype_e enum
|
static int |
APR_POLL_FILE
descriptor refers to a socket
|
static int |
APR_POLL_LASTDESC
descriptor refers to a file
|
static int |
APR_POLL_SOCKET
nothing here
|
static int |
APR_POLLERR
Pending error
|
static int |
APR_POLLHUP
Hangup occurred
|
static int |
APR_POLLIN
Can read without blocking
|
static int |
APR_POLLNVAL
Descriptor invalid
|
static int |
APR_POLLOUT
Can write without blocking
|
static int |
APR_POLLPRI
Priority data available
|
static int |
APR_POLLSET_THREADSAFE
Adding or Removing a Descriptor is thread safe
|
Constructor and Description |
---|
Poll() |
Modifier and Type | Method and Description |
---|---|
static int |
add(long pollset,
long sock,
int reqevents)
Add a socket to a pollset with the default timeout.
|
static int |
addWithTimeout(long pollset,
long sock,
int reqevents,
long timeout)
Add a socket to a pollset with a specific timeout.
|
static long |
create(int size,
long p,
int flags,
long ttl)
Setup a pollset object.
|
static int |
destroy(long pollset)
Destroy a pollset object
|
static long |
getTtl(long pollset)
Get the socket time to live.
|
static int |
maintain(long pollset,
long[] descriptors,
boolean remove)
Maintain on the descriptor(s) in a pollset
|
static int |
poll(long pollset,
long timeout,
long[] descriptors,
boolean remove)
Block for activity on the descriptor(s) in a pollset
|
static int |
pollset(long pollset,
long[] descriptors)
Return all descriptor(s) in a pollset
|
static int |
remove(long pollset,
long sock)
Remove a descriptor from a pollset
|
static void |
setTtl(long pollset,
long ttl)
Set the socket time to live.
|
public static final int APR_POLLIN
public static final int APR_POLLPRI
public static final int APR_POLLOUT
public static final int APR_POLLERR
public static final int APR_POLLHUP
public static final int APR_POLLNVAL
public static final int APR_POLLSET_THREADSAFE
public static final int APR_NO_DESC
public static final int APR_POLL_SOCKET
public static final int APR_POLL_FILE
public static final int APR_POLL_LASTDESC
public static long create(int size, long p, int flags, long ttl) throws Error
size
- The maximum number of descriptors that this pollset can holdp
- The pool from which to allocate the pollsetflags
- Optional flags to modify the operation of the pollset.ttl
- Maximum time to live for a particular socket.Error
public static int destroy(long pollset)
pollset
- The pollset to destroypublic static int add(long pollset, long sock, int reqevents)
pollset
- The pollset to which to add the socketsock
- The sockets to addreqevents
- requested eventspublic static int addWithTimeout(long pollset, long sock, int reqevents, long timeout)
pollset
- The pollset to which to add the socketsock
- The sockets to addreqevents
- requested eventstimeout
- requested timeout in microseconds (-1 for infinite)public static int remove(long pollset, long sock)
pollset
- The pollset from which to remove the descriptorsock
- The socket to removepublic static int poll(long pollset, long timeout, long[] descriptors, boolean remove)
pollset
- The pollset to usetimeout
- Timeout in microsecondsdescriptors
- Array of signaled descriptors (output parameter)
The descriptor array must be two times the size of pollset.
and are populated as follows:
descriptors[2n + 0] -> returned events descriptors[2n + 1] -> socket
remove
- Remove signaled descriptors from pollsetpublic static int maintain(long pollset, long[] descriptors, boolean remove)
pollset
- The pollset to usedescriptors
- Array of signaled descriptors (output parameter)
The descriptor array must be the size of pollset.
and are populated as follows:
descriptors[n] -> socket
remove
- Remove signaled descriptors from pollsetpublic static void setTtl(long pollset, long ttl)
pollset
- The pollset to usettl
- Timeout in microsecondspublic static long getTtl(long pollset)
pollset
- The pollset to usepublic static int pollset(long pollset, long[] descriptors)
pollset
- The pollset to usedescriptors
- Array of descriptors (output parameter)
The descriptor array must be two times the size of pollset.
and are populated as follows:
descriptors[2n + 0] -> returned events descriptors[2n + 1] -> socket
Copyright © 2000-2018 Apache Software Foundation. All Rights Reserved.