mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-21 07:46:38 +00:00
16 lines
1 KiB
Text
16 lines
1 KiB
Text
Ownership of dynamic objects
|
|
----------------------------
|
|
|
|
Any object-oriented system or language that doesn't have automatic garbage collection has many potential pitfalls as
|
|
far as the pointers go. Therefore, some standards must be adhered to as far as who owns what.
|
|
|
|
Strings:
|
|
Arguments passed into a function are owned by the caller, and the function will make a copy of the string for its own
|
|
internal use. The string should be const gchar *. Strings returned from a function remain the property of the
|
|
function called, and the caller must make a copy if it is to use the string for an extended duration.
|
|
|
|
Objects:
|
|
The ownership of an object during a function call depends on the type of function. If the function is simply returning
|
|
something from the object, such as _get_name(), the caller retains ownership. If the object passed is to be
|
|
manipulated in some way, it is generally the case that the function will take over the ownership. This should be
|
|
expressed as a reference increment on that object, but isn't in the general case (yet).
|