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global: avoid using existing global id

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Add the global immediately after creating it. Make sure we only
enumerate registered globals. This way, we can already check for
duplicate ids before the global is registered.

When allocating a global id, avoid using an existing id. Move some
code around to make it easier to implement a more efficient algorithm
for collision detection.

Move the object id counter to the context.
This commit is contained in:
Wim Taymans 2022-01-13 16:10:35 +01:00
parent 3a49168f26
commit 5baab24848
3 changed files with 34 additions and 6 deletions
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4
src/pipewire/private.h
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@ -450,6 +450,7 @@ struct pw_context {
uint32_t n_support; /**< number of support items */
struct pw_array factory_lib; /**< mapping of factory_name regexp to library */
uint32_t serial;
struct pw_array objects; /**< objects */
struct pw_impl_client *current_client; /**< client currently executing code in mainloop */
@ -1115,6 +1116,9 @@ struct pw_control {
void *user_data;
};
uint32_t pw_context_add_global(struct pw_context *context, struct pw_global *global);
void pw_context_remove_global(struct pw_context *context, struct pw_global *global);
/** Find a good format between 2 ports */
int pw_context_find_format(struct pw_context *context,
struct pw_impl_port *output,