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backend/session: operate on wlr_device

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Instead of operating on FDs in {open,close}_device, operate on
wlr_devices. This avoids the device lookup in wlr_session and allows
callers to have access to wlr_device fields.

For now, we use it to remove wlr_session_signal_add and replace it with
a more idiomatic wlr_session.events.change field. In the future, other
events will be added.
This commit is contained in:
Simon Ser 2020-11-06 10:16:07 +01:00
parent 63df2bcbe6
commit 44a4792fd8
7 changed files with 69 additions and 68 deletions
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3
include/wlr/backend/drm.h
View file

@ -22,7 +22,8 @@
* a DRM backend, other kinds of backends raise SIGABRT).
*/
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
struct wlr_session *session, int gpu_fd, struct wlr_backend *parent,
struct wlr_session *session, struct wlr_device *dev,
struct wlr_backend *parent,
wlr_renderer_create_func_t create_renderer_func);
bool wlr_backend_is_drm(struct wlr_backend *backend);

16
include/wlr/backend/session.h
View file

@ -11,9 +11,11 @@ struct session_impl;
struct wlr_device {
int fd;
dev_t dev;
struct wl_signal signal;
struct wl_list link;
struct {
struct wl_signal change;
} events;
};
struct wlr_session {
@ -74,21 +76,21 @@ void wlr_session_destroy(struct wlr_session *session);
*
* Returns -errno on error.
*/
int wlr_session_open_file(struct wlr_session *session, const char *path);
struct wlr_device *wlr_session_open_file(struct wlr_session *session,
const char *path);
/*
* Closes a file previously opened with wlr_session_open_file.
*/
void wlr_session_close_file(struct wlr_session *session, int fd);
void wlr_session_close_file(struct wlr_session *session,
struct wlr_device *device);
void wlr_session_signal_add(struct wlr_session *session, int fd,
struct wl_listener *listener);
/*
* Changes the virtual terminal.
*/
bool wlr_session_change_vt(struct wlr_session *session, unsigned vt);
size_t wlr_session_find_gpus(struct wlr_session *session,
size_t ret_len, int *ret);
size_t ret_len, struct wlr_device **ret);
#endif