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seat: Rework seat activation/switch logic

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The seat activation logic did not correctly handle VT switching and
switching between multiple sessions.

Session switching on VT-bound seats is now performed using a VT switch,
taking advantage of VT signals to perform the actual switch. This
simplifies switching logic and makes it more robust.
This commit is contained in:
Kenny Levinsen 2020-09-18 15:38:53 +02:00
parent d16122e98a
commit 51c7467516
5 changed files with 186 additions and 190 deletions
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3
include/client.h
View file

@ -21,7 +21,7 @@ struct client {
gid_t gid;
struct seat *seat;
int seat_vt;
int session;
bool pending_disable;
struct linked_list devices;
@ -31,7 +31,6 @@ struct client *client_create(struct server *server, int client_fd);
void client_destroy(struct client *client);
int client_handle_connection(int fd, uint32_t mask, void *data);
int client_get_session(const struct client *client);
int client_send_enable_seat(struct client *client);
int client_send_disable_seat(struct client *client);

8
include/seat.h
View file

@ -33,9 +33,9 @@ struct seat {
struct client *next_client;
bool vt_bound;
bool vt_pending_ack;
int next_vt;
int curttyfd;
int cur_ttyfd;
int cur_vt;
int session_cnt;
};
struct seat *seat_create(const char *name, bool vt_bound);
@ -52,7 +52,7 @@ int seat_close_device(struct client *client, struct seat_device *seat_device);
struct seat_device *seat_find_device(struct client *client, int device_id);
int seat_set_next_session(struct client *client, int session);
int seat_activate(struct seat *seat);
int seat_vt_activate(struct seat *seat);
int seat_prepare_vt_switch(struct seat *seat);
#endif