Product Install Registry Library Functions
wsreg_add_required_component(3WSREG)
NAME
wsreg_add_required_component,
wsreg_remove_required_component,
wsreg_get_required_components - add or remove a required
componentSYNOPSIS
cc [flag ...] file ...-lwsreg [library ...]
#include
int wsreg_add_required_component(Wsreg_component *comp,
const Wsreg_component *requiredComp);
int wsreg_remove_required_component(Wsreg_component *comp,
const Wsreg_component *requiredComp);
Wsreg_component **wsreg_get_required_components
(const Wsreg_component *comp);
DESCRIPTION
The wsreg_add_required_component() function adds the com-
ponent specified by requiredComp to the list of required components contained in the component specified by comp.The wsreg_remove_required_component() function removes the
component specified by requiredComp from the list of required components contained in the component specified by comp.The wsreg_get_required_components() function returns the
list of required components contained in the component specified by comp.RETURN VALUES
The wsreg_add_required_component() function returns a non-
zero value if the specified required component was success-
fully added. Otherwise, 0 is returned.The wsreg_remove_required_component() function returns a
non-zero value if the specified required component was suc-
cessfully removed. Otherwise, 0 is returned.The wsreg_get_required_components() function returns a
null-terminated array of Wsreg_component pointers that
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Product Install Registry Library Functionswsreg_add_required_component(3WSREG)
represents the specified component's list of required com-
ponents. If the specified component has no required com-
ponents, NULL is returned. The resulting array must be released by the caller through a call towsreg_free_component_array(). See
wsreg_create_component(3WSREG).
USAGE
The relationship between two components in which one must be installed for the other to be complete is a dependent/required relationship. The component that is required by the other component is the required component.The component that requires the other is the dependent com-
ponent. The required component must be installed and registeredbefore the dependent component can be. Uninstaller applica-
tions should check the registry before uninstalling and unregistering components so a successful uninstallation of one product will not result in another product being compromised. Read access to the product install registry is required in order to use these functions because these relationships are held with lightweight component references that can only be fully resolved using the registry contents.ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| MT-Level | Unsafe |
|_____________________________|_____________________________|
SEE ALSO
wsreg_add_dependent_component(3WSREG),
wsreg_can_access_registry(3WSREG),
wsreg_create_component(3WSREG), wsreg_initialize(3WSREG),
wsreg_register(3WSREG), attributes(5)
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Product Install Registry Library Functionswsreg_add_required_component(3WSREG)
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