Process info
History
| Release | Changes |
|---|---|
| 20 R7 | Added |
Process info ( processNumber : Integer ) : Object
| Parameter | Type | Description | |
|---|---|---|---|
| processNumber | Integer | → | Process number |
| Result | Object | ← | Information about the process |
Description
The Process info command returns an object providing detailed information about process whose number you pass in processNumber. If you pass an incorrect process number, the command returns a null object.
The returned object contains the following properties:
| Property | Type | Description |
|---|---|---|
| cpuTime | Real | Running time (seconds) |
| cpuUsage | Real | Percentage of time devoted to this process (between 0 and 1) |
| creationDateTime | Text (Date ISO 8601) | Date and time of process creation |
| ID | Integer | Process unique ID |
| name | Text | Process name |
| number | Integer | Process number |
| preemptive | Boolean | True if run preemptive, false otherwise |
| sessionID | Text | Session UUID |
| state | Integer | Current status. Possible values: see below |
| systemID | Text | ID for the user process, 4D process or spare process |
| type | Integer | Running process type. Possible values: see below |
| visible | Boolean | True if visible, false otherwise |
- Possible values for "state":
| Constant | Value |
|---|---|
| Does not exist | -100 |
| Aborted | -1 |
| Executing | 0 |
| Delayed | 1 |
| Waiting for user event | 2 |
| Waiting for input output | 3 |
| Waiting for internal flag | 4 |
| Paused | 5 |
- Possible values for "type":
| Constant | Value |
|---|---|
| Apple event manager | -7 |
| Backup process | -19 |
| Cache manager | -4 |
| Client manager process | -31 |
| Compiler process | -29 |
| Created from execution dialog | 3 |
| Created from menu command | 2 |
| DB4D Cron | -49 |
| DB4D Flush cache | -46 |
| DB4D Garbage collector | -47 |
| DB4D Index builder | -45 |
| DB4D Listener | -51 |
| DB4D Mirror | -50 |
| DB4D Worker pool user | -48 |
| Design process | -2 |
| Event manager | -8 |
| Execute on client process | -14 |
| Execute on server process | 1 |
| External task | -9 |
| HTTP Listener | -56 |
| HTTP Log flusher | -58 |
| HTTP Worker pool server | -55 |
| Indexing process | -5 |
| Internal 4D server process | -18 |
| Internal timer process | -25 |
| Log file process | -20 |
| Logger process | -57 |
| Main 4D process | -39 |
| Main process | -1 |
| Method editor macro process | -17 |
| Monitor process | -26 |
| MSC process | -22 |
| None | 0 |
| On exit process | -16 |
| Other 4D process | -10 |
| Other internal process | -40 |
| Other user process | 4 |
| Restore Process | -21 |
| Serial Port Manager | -6 |
| Server interface process | -15 |
| ServerNet Listener | -43 |
| ServerNet Session manager | -44 |
| SOAP process | -33 |
| SQL Listener | -54 |
| SQL Method execution process | -24 |
| SQL Net Session manager | -53 |
| SQL Worker pool server | -52 |
| Web process on 4D remote | -12 |
| Web process with no context | -3 |
| Web server process | -13 |
| Web server spare process | -32 |
| Worker pool in use | -41 |
| Worker pool spare | -42 |
| Worker process | 5 |
note
4D's internal processes have a negative type value and processes generated by the user have a positive value. Worker processes launched by user have type 5.
Here is an example of output object:
{
"number": 4,
"name": "Application process",
"sessionID": "3C81A8D7AFE64C2E9CCFFCDC35DC52F5",
"ID": 4,
"visible": true,
"type": -18,
"state": 0,
"creationDateTime": "2024-09-22T12:46:39.787Z",
"preemptive": false,
"systemID": "123145476132864",
"cpuUsage": 0,
"cpuTime": 0.006769
}
Example
You want to know if the process is preemptive:
var $preemptive : Boolean
$preemptive:=Process info(Current process).preemptive