I have a little WIMP program I have written in BASIC.
As part of the Run file, it runs a *command and out puts results to a
file. This works fine.
However I would like to be able to run the same command within a procedure
in the program to allow the file to be refreshed.
I have tried using SYS "OS_CLI","ifconfig -a > <Wimp$ScrapDir>.ifinfo"
This has the desired effect, being that it sends output of ifconfig -a to
the ifinfo file in the scrap folder. However the program stops at this
point :( Having opened a task window, and entered BASIC. Running the
above SYS command exits BASIC and returns to command prompt. Obviously
the same is occurring when attempting to run as part of the program and explains why it just stops without any error.
Is SYS "OS_CLI" the correct command I should be using for this? Or is
there another equally simple command to use that allows the program to continue after it has run?
I think you probably need to do "SYS Wimp_StartTask" rather than trying
to use OSCLI.
See https://www.riscosopen.org/forum/forums/11/topics/1753 , for
example.
On 1 Jan 2022 as I do recall,
Paul Stewart wrote:
I have a little WIMP program I have written in BASIC.
As part of the Run file, it runs a *command and out puts results to a
file. This works fine.
However I would like to be able to run the same command within a procedure in the program to allow the file to be refreshed.
I have tried using SYS "OS_CLI","ifconfig -a > <Wimp$ScrapDir>.ifinfo"
This has the desired effect, being that it sends output of ifconfig -a to the ifinfo file in the scrap folder. However the program stops at this point :( Having opened a task window, and entered BASIC. Running the above SYS command exits BASIC and returns to command prompt. Obviously
the same is occurring when attempting to run as part of the program and explains why it just stops without any error.
Is SYS "OS_CLI" the correct command I should be using for this? Or is there another equally simple command to use that allows the program to continue after it has run?
I think you probably need to do "SYS Wimp_StartTask" rather than trying
to use OSCLI.
See https://www.riscosopen.org/forum/forums/11/topics/1753 , for
example.
The way the Wimp works any task when it is running is essentially single-tasking and running another program via the command line interpreter replaces the current program in memory. That's why you have to ask the Wimp to do it via Wimp_StartTask.
The WISC OS Wimp is all a big conjuring trick so that you can seemingly multi-task on an operating system which is little different from the BBC Micro really. The low-level stuff like the command line interpreter knows nothing about multi-tasking.
Hi,
I have a little WIMP program I have written in BASIC.
As part of the Run file, it runs a *command and out puts results to a
file. This works fine.
However I would like to be able to run the same command within a procedure in the program to allow the file to be refreshed.
I have tried using SYS "OS_CLI","ifconfig -a > <Wimp$ScrapDir>.ifinfo"
On Saturday, 1 January 2022 at 21:10:47 UTC, Paul Stewart wrote:
Hi,
I have a little WIMP program I have written in BASIC.
As part of the Run file, it runs a *command and out puts results to a
file. This works fine.
However I would like to be able to run the same command within a procedure >> in the program to allow the file to be refreshed.
I have tried using SYS "OS_CLI","ifconfig -a > <Wimp$ScrapDir>.ifinfo"
Which won't work because, as you've seen, it replaces your application.
There is no process control on RISC OS, so you suffer here.
However, your specific problem is that you want to read (I assume) information about the interfaces on the system. This is relatively trivial
to do. How relative is a subjective matter, but it only needs calls that
are defined in BSD sockets interfaces used by most systems. Because of
this they're 'easily' translatable to RISC OS Socket calls. Some years ago
I created some examples to show how this could be done in BASIC.
The very old examples can be found on my usenet sharing site (https://usenet.gerph.org/Internet/), but a year ago I placed slightly improved versions in the RISC OS examples repository at https://github.com/gerph/riscos-examples/tree/master/networking/sockets
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