upipe/upipe_helper_uref_mgr.h header reference

Upipe helper functions for uref manager More

• upipe/ubase.h
• upipe/uref.h
• upipe/upipe.h

• UPIPE_HELPER_UREF_MGR

Upipe helper functions for uref manager

This macro is declared in upipe/upipe_helper_uref_mgr.h source file, line 83.

This macro declares four functions dealing with the uref manager.

You must add one pointer to your private upipe structure, for instance:

You must also declare UPIPE_HELPER_UPIPE prior to using this macro.

Supposing the name of your structure is upipe_foo, it declares:

• void upipe_foo_init_uref_mgr(struct upipe *upipe)

  Typically called in your upipe_foo_alloc() function.

• int upipe_foo_attach_uref_mgr(struct upipe *upipe)

  Typically called from your upipe_foo_control() handler, such as:

  case UPIPE_ATTACH_UREF_MGR: {
return upipe_foo_attach_uref_mgr(upipe);
}
• int upipe_foo_check_uref_mgr(struct upipe *upipe)

  Checks if the uref manager is available, and asks for it otherwise.

• void upipe_foo_clean_uref_mgr(struct upipe *upipe)

  Typically called from your upipe_foo_free() function.

Parameters list:

• STRUCTURE: name of your private upipe structure
• UREF_MGR: name of the struct uref_mgr * field of your private upipe structure

This macro is declared in upipe/upipe_helper_uref_mgr.h source file, line 31.