LibGII configuration file format

Name

libgii.conf : LibGII configuration file format

Description

'/etc/ggi/libgii.conf' is the configuration file that defines what input module are available and where libgii is supposed to find them. It consists of lines defining target locations (mapping a target name a function name) and target aliases (fake targets that actually calls other target with a specific set of parameters).

The format is common to all GGI libraries. It is defined by libgg. See ggLoadConfig(3) for additional information on file inclusions and other generic options.

Examples

These examples show how to use the generic configuration mechanism proposed by 'LibGG' with 'LibGII'.

The first example defines three input modules (or targets) for which initialization function is found in three different dynamic libraries (.so files), under the default LibGII input symbol: 'GIIdlinit':

input-stdin                   input/stdin.so
input-x                       input/x.so
input-xwin                    input/xwin.so

In the second example, the two inputs are implemented in a single dynamic library, but they each have their own initialization functions in this library. Their name is separated from the path by a ':'.

input-x input/x.so:GIIdl_x input-xwin input/x.so:GIIdl_xwin

The third example defines only one real target 'input-x', located in shared object 'input/x.so' under the symbol 'GIIdl_x'. 'input-xwin' is an alias that will resolve to target 'input-x' with the option string '-be-xwin' to be passed to the target function ('GIIdl_x' in 'input/x.so').

input-x input/x.so:GIIdl_x alias input-xwin input-x:-be-xwin

The last examples defines two inputs, with two possible location for their implementation. The first two lines are the same as in example 2. The other two states that these two inputs can also be found (if the previous fail) as a built-in modules. The '/gii-builtins' path points to the 'LibGII' built-in symbol namespace. In this case both input would be found in this namespace under the default symbol 'GIIdlinit'. The initialization function will be given the requested target name to know which implementation to use.

input-x input/x.so:GIIdl_x input-xwin input/x.so:GIIdl_xwin

input-x /gii-builtins input-xwin /gii-builtins

See also