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<?php
// Start of sysvmsg v.
/**
* Create or attach to a message queue
* @link https://php.net/manual/en/function.msg-get-queue.php
* @param int $key <p>
* Message queue numeric ID
* </p>
* @param int $perms [optional] <p>
* Queue permissions. Default to 0666. If the message queue already
* exists, the <i>perms</i> will be ignored.
* </p>
* @return resource a resource handle that can be used to access the System V message queue.
* @since 4.3
* @since 5.0
*/
function msg_get_queue ($key, $perms = 0666) {}
/**
* Send a message to a message queue
* @link https://php.net/manual/en/function.msg-send.php
* @param resource $queue
* @param int $msgtype
* @param mixed $message
* @param bool $serialize [optional] <p>
* The optional <i>serialize</i> controls how the
* <i>message</i> is sent. <i>serialize</i>
* defaults to <b>TRUE</b> which means that the <i>message</i> is
* serialized using the same mechanism as the session module before being
* sent to the queue. This allows complex arrays and objects to be sent to
* other PHP scripts, or if you are using the WDDX serializer, to any WDDX
* compatible client.
* </p>
* @param bool $blocking [optional] <p>
* If the message is too large to fit in the queue, your script will wait
* until another process reads messages from the queue and frees enough
* space for your message to be sent.
* This is called blocking; you can prevent blocking by setting the
* optional <i>blocking</i> parameter to <b>FALSE</b>, in which
* case <b>msg_send</b> will immediately return <b>FALSE</b> if the
* message is too big for the queue, and set the optional
* <i>errorcode</i> to <b>MSG_EAGAIN</b>,
* indicating that you should try to send your message again a little
* later on.
* </p>
* @param int $errorcode [optional]
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
* </p>
* <p>
* Upon successful completion the message queue data structure is updated as
* follows: <i>msg_lspid</i> is set to the process-ID of the
* calling process, <i>msg_qnum</i> is incremented by 1 and
* <i>msg_stime</i> is set to the current time.
* @since 4.3
* @since 5.0
*/
function msg_send ($queue, $msgtype, $message, $serialize = true, $blocking = true, &$errorcode = null) {}
/**
* Receive a message from a message queue
* @link https://php.net/manual/en/function.msg-receive.php
* @param resource $queue
* @param int $desiredmsgtype <p>
* If <i>desiredmsgtype</i> is 0, the message from the front
* of the queue is returned. If <i>desiredmsgtype</i> is
* greater than 0, then the first message of that type is returned.
* If <i>desiredmsgtype</i> is less than 0, the first
* message on the queue with the lowest type less than or equal to the
* absolute value of <i>desiredmsgtype</i> will be read.
* If no messages match the criteria, your script will wait until a suitable
* message arrives on the queue. You can prevent the script from blocking
* by specifying <b>MSG_IPC_NOWAIT</b> in the
* <i>flags</i> parameter.
* </p>
* @param int $msgtype <p>
* The type of the message that was received will be stored in this
* parameter.
* </p>
* @param int $maxsize <p>
* The maximum size of message to be accepted is specified by the
* <i>maxsize</i>; if the message in the queue is larger
* than this size the function will fail (unless you set
* <i>flags</i> as described below).
* </p>
* @param mixed $message <p>
* The received message will be stored in <i>message</i>,
* unless there were errors receiving the message.
* </p>
* @param bool $unserialize [optional] <p>
* If set to
* <b>TRUE</b>, the message is treated as though it was serialized using the
* same mechanism as the session module. The message will be unserialized
* and then returned to your script. This allows you to easily receive
* arrays or complex object structures from other PHP scripts, or if you
* are using the WDDX serializer, from any WDDX compatible source.
* </p>
* <p>
* If <i>unserialize</i> is <b>FALSE</b>, the message will be
* returned as a binary-safe string.
* </p>
* @param int $flags [optional] <p>
* The optional <i>flags</i> allows you to pass flags to the
* low-level msgrcv system call. It defaults to 0, but you may specify one
* or more of the following values (by adding or ORing them together).
* <table>
* Flag values for msg_receive
* <tr valign="top">
* <td><b>MSG_IPC_NOWAIT</b></td>
* <td>If there are no messages of the
* <i>desiredmsgtype</i>, return immediately and do not
* wait. The function will fail and return an integer value
* corresponding to <b>MSG_ENOMSG</b>.
* </td>
* </tr>
* <tr valign="top">
* <td><b>MSG_EXCEPT</b></td>
* <td>Using this flag in combination with a
* <i>desiredmsgtype</i> greater than 0 will cause the
* function to receive the first message that is not equal to
* <i>desiredmsgtype</i>.</td>
* </tr>
* <tr valign="top">
* <td><b>MSG_NOERROR</b></td>
* <td>
* If the message is longer than <i>maxsize</i>,
* setting this flag will truncate the message to
* <i>maxsize</i> and will not signal an error.
* </td>
* </tr>
* </table>
* </p>
* @param int $errorcode [optional] <p>
* If the function fails, the optional <i>errorcode</i>
* will be set to the value of the system errno variable.
* </p>
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
* </p>
* <p>
* Upon successful completion the message queue data structure is updated as
* follows: msg_lrpid is set to the process-ID of the
* calling process, msg_qnum is decremented by 1 and
* msg_rtime is set to the current time.
* @since 4.3
* @since 5.0
*/
function msg_receive ($queue, $desiredmsgtype, &$msgtype, $maxsize, &$message, $unserialize = true, $flags = 0, &$errorcode = null) {}
/**
* Destroy a message queue
* @link https://php.net/manual/en/function.msg-remove-queue.php
* @param resource $queue <p>
* Message queue resource handle
* </p>
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
* @since 4.3
* @since 5.0
*/
function msg_remove_queue ($queue) {}
/**
* Returns information from the message queue data structure
* @link https://php.net/manual/en/function.msg-stat-queue.php
* @param resource $queue <p>
* Message queue resource handle
* </p>
* @return array The return value is an array whose keys and values have the following
* meanings:
* <table>
* Array structure for msg_stat_queue
* <tr valign="top">
* <td>msg_perm.uid</td>
* <td>
* The uid of the owner of the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_perm.gid</td>
* <td>
* The gid of the owner of the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_perm.mode</td>
* <td>
* The file access mode of the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_stime</td>
* <td>
* The time that the last message was sent to the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_rtime</td>
* <td>
* The time that the last message was received from the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_ctime</td>
* <td>
* The time that the queue was last changed.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_qnum</td>
* <td>
* The number of messages waiting to be read from the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_qbytes</td>
* <td>
* The maximum number of bytes allowed in one message queue. On
* Linux, this value may be read and modified via
* /proc/sys/kernel/msgmnb.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_lspid</td>
* <td>
* The pid of the process that sent the last message to the queue.
* </td>
* </tr>
* <tr valign="top">
* <td>msg_lrpid</td>
* <td>
* The pid of the process that received the last message from the queue.
* </td>
* </tr>
* </table>
* @since 4.3
* @since 5.0
*/
function msg_stat_queue ($queue) {}
/**
* Set information in the message queue data structure
* @link https://php.net/manual/en/function.msg-set-queue.php
* @param resource $queue <p>
* Message queue resource handle
* </p>
* @param array $data <p>
* You specify the values you require by setting the value of the keys
* that you require in the <i>data</i> array.
* </p>
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
* @since 4.3
* @since 5.0
*/
function msg_set_queue ($queue, array $data) {}
/**
* Check whether a message queue exists
* @link https://php.net/manual/en/function.msg-queue-exists.php
* @param int $key <p>
* Queue key.
* </p>
* @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
* @since 5.3
*/
function msg_queue_exists ($key) {}
define ('MSG_IPC_NOWAIT', 1);
define ('MSG_EAGAIN', 11);
define ('MSG_ENOMSG', 42);
define ('MSG_NOERROR', 2);
define ('MSG_EXCEPT', 4);
// End of sysvmsg v.
?>
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