task_info


`task_info`
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`task_info`

task_info — gets information from a task descriptor.

Synopsis

task_info (tsk)

Arguments

tsk: A task descriptor, as returned by the locate_task function.

Returns

An instance of the class TaskInfo, or nil on failure.

Description

This function returns an instance of Gamma's TaskInfo class. The instance variables of this class correspond to information contained in the task descriptor, as follows:

channel_id: The channel ID number, which is used in QNX 6 but not in QNX 4 or Linux.
domain: The name of the DataHub domain for the tsk.
name: The name of the tsk, as recorded in the Cascade NameServer. This attribute is not contained in a task descriptor, and thus is always returned as nil from this function.
node_id: The node ID number.
node_name: The node_id expressed as a string.
pid: The process ID number.
queue_name: The name of the Cascade QueueServer queue, as registered with the Cascade NameServer.
queue_size: The size of the Cascade QueueServer queue.

Example

Gamma> init_ipc("a", "aq");
t
Gamma> tsk = locate_task("/dh/toolsdemo", nil);
#>Task:5394<
Gamma> task_info(tsk);
{TaskInfo (channel_id . 0) (domain . "toolsdemo") (name)
    (node_id . 0) (node_name . "0") (pid . 5394)
    (queue_name . "/dh/toolsde") (queue_size . 0)}
Gamma>

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