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hook: add spa_callbacks_check

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That does a version and method check on the callbacks.
This commit is contained in:
Wim Taymans 2021-10-07 10:13:06 +02:00
parent bb950976da
commit 68748895ea
1 changed files with 20 additions and 3 deletions
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23
spa/include/spa/utils/hook.h
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@ -191,6 +191,16 @@ struct spa_interface {
SPA_CALLBACK_VERSION_MIN(_f,vers); \
})
/**
* True if the \a callbacks contains \a method of version
* \a vers, false otherwise
*/
#define spa_callback_check(callbacks,type,method,vers) \
({ \
const type *_f = (const type *) (callbacks)->funcs; \
SPA_CALLBACK_CHECK(_f,method,vers); \
})
/**
* Invoke method named \a method in the \a callbacks.
* The \a method_type defines the type of the method struct.
@ -206,17 +216,24 @@ struct spa_interface {
})
/**
* True if the \a iface's \a callbacks are of version \a vers, false otherwise
* True if the \a iface's callbacks are of version \a vers, false otherwise
*/
#define spa_interface_callback_version_min(iface,method_type,vers) \
#define spa_interface_callback_version_min(iface,method_type,vers) \
spa_callback_version_min(&(iface)->cb, method_type, vers)
/**
* True if the \a iface's callback \a method is of version \a vers
* and exists, false otherwise
*/
#define spa_interface_callback_check(iface,method_type,method,vers) \
spa_callback_check(&(iface)->cb, method_type, method, vers)
/**
* Invoke method named \a method in the callbacks on the given interface object.
* The \a method_type defines the type of the method struct, not the interface
* itself.
*/
#define spa_interface_call(iface,method_type,method,vers,...) \
#define spa_interface_call(iface,method_type,method,vers,...) \
spa_callbacks_call(&(iface)->cb,method_type,method,vers,##__VA_ARGS__)
/**