Better global data support for tools

Tools

Copyright © 2000 Jarno van der Linden.

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sys/gd/cleanup
sys/gd/gdconst
sys/gd/gdfree
sys/gd/gdrw
sys/gd/makename

sys/gd/cleanup (Private)

Cleanup routine run at process exit to free global data

Inputs

Outputs

Description

sys/gd/cleanup is a private function.

Example

None

See also

sys/gd/gdconst

Sets up a constant global data area

Inputs

Outputs

Description

sys/gd/gdconst creates a global constant data area based on the data source. The returned global data area should NOT be written to.

Example

None

See also

sys/gd/gdrw

sys/gd/gdfree

Forces a read/write global data area to be freed here and now

Inputs

Outputs

Description

Forces the named global data area to be freed. Any attempt to access it after this call is a Bad Thing. If you need to use the global data again, it must be set up again using sys/gd/gdrw or sys/gd/gdconst. Any changes made to the global data will be lost.

The global data named must be read/write. The effect of calling this with the name of a constant global data area is presently undefined.

Example

None

See also

sys/gd/gdrw

sys/gd/gdrw

Sets up a read/write global data area

Inputs

Outputs

Description

sys/gd/gdrw creates a global data area which can be read and written to. The global data will be initialised with the given data source. The returned global data area can be written to as much as you like.

The created global data area should only be accessed by the process that created it. It will be automatically deleted when the process exits, unless already deleted using sys/gd/gdfree.

p1 can be set to null, in which case the global data area is initialized with nulls. Otherwise, the size of the data passed in i0 must be equal to the size of the data source pointed to by p1.

Example

None

See also

sys/gd/gdconst

sys/gd/makename (Private)

Generates a system-wide unique name for a global data area

Inputs

Outputs

Description

sys/gd/makename is a private function.

Example

None

See also