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Some more interfaces improvements

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* add a lumiera_interface_version() function for runtime type and version
   checking of interfaces
 * the 'lumieraorg__plugin' interface is now private
 * add a macro to construct a interface instance name string
This commit is contained in:
Christian Thaeter 2008-11-04 07:50:42 +01:00
parent b0b29e86a4
commit 4d2fe242d0
2 changed files with 32 additions and 4 deletions
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10
src/backend/interface.c
View file

@ -229,6 +229,16 @@ lumiera_interface_close (LumieraInterface self)
}
unsigned
lumiera_interface_version (LumieraInterface self, const char* iname)
{
if (self && iname && !strcmp (self->interface, iname))
return self->version;
return ~0;
}
/* internal function, does no locking! */
static void
lumiera_interfacenode_close (LumieraInterfacenode self)

26
src/backend/interface.h
View file

@ -102,9 +102,18 @@
* @param iname name of the interface
* @param version major version of the interface
* @param dname name for the instance
* @return constructed identifier
*/
#define LUMIERA_INTERFACE_DNAME(iname, version, dname) PPMPL_CAT (LUMIERA_INTERFACE_INAME(iname, version), _##dname)
#define LUMIERA_INTERFACE_DNAME(iname, version, dname) PPMPL_CAT (LUMIERA_INTERFACE_INAME (iname, version), _##dname)
/**
* Construct a definition string r for an interface
* @param iname name of the interface
* @param version major version of the interface
* @param dname name for the instance
* @return constructed string
*/
#define LUMIERA_INTERFACE_DSTRING(iname, version, dname) PPMPL_STRINGIFY (LUMIERA_INTERFACE_DNAME (iname, version, dname))
/**
* Return a reference (pointer) to an interface implementation
@ -293,7 +302,7 @@ queryfunc (void) \
*/
#define LUMIERA_PLUGIN(acquire, release, luid, ...) \
LUMIERA_EXPORT(plugin_interfaces, __VA_ARGS__) \
LUMIERA_INTERFACE_INSTANCE (lumieraorg_plugin, 0, \
LUMIERA_INTERFACE_INSTANCE (lumieraorg__plugin, 0, \
lumieraorg_plugin, \
NULL, \
acquire, \
@ -374,7 +383,7 @@ struct lumiera_interface_struct
/**
* Plugin interface
*/
LUMIERA_INTERFACE_DECLARE (lumieraorg_plugin, 0,
LUMIERA_INTERFACE_DECLARE (lumieraorg__plugin, 0,
LUMIERA_INTERFACE_SLOT (LumieraInterface*, plugin_interfaces, (void)),
);
@ -402,7 +411,16 @@ lumiera_interface_open (const char* interface, unsigned version, size_t minminor
* consider 'self' to be invalidated after this call
*/
void
lumiera_interface_close (LumieraInterface iface);
lumiera_interface_close (LumieraInterface self);
/**
* Runtime check for interface type and version
* @param self interface to check
* @param iname name of the interface
* @return version of the interface or ~0 (-1) if iname doesn't match the requested name
*/
unsigned
lumiera_interface_version (LumieraInterface self, const char* iname);
#endif /* LUMIERA_INTERFACE_H */