mherrb/seatd
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seat: Convert client list to linked list

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This commit is contained in:
Kenny Levinsen 2020-08-03 02:26:22 +02:00
parent 9b7a12d90a
commit fc7116ffad
3 changed files with 19 additions and 29 deletions
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2
include/client.h
View file

@ -7,11 +7,11 @@
#include "connection.h"
#include "linked_list.h"
#include "list.h"
struct server;
struct client {
struct linked_list link; // seat::clients
struct server *server;
struct event_source_fd *event_source;
struct connection connection;

3
include/seat.h
View file

@ -6,7 +6,6 @@
#include <sys/types.h>
#include "linked_list.h"
#include "list.h"
struct client;
@ -28,7 +27,7 @@ struct seat_device {
struct seat {
char *seat_name;
struct list clients;
struct linked_list clients;
struct client *active_client;
struct client *next_client;

43
seatd/seat.c
View file

@ -12,7 +12,7 @@
#include "client.h"
#include "drm.h"
#include "evdev.h"
#include "list.h"
#include "linked_list.h"
#include "log.h"
#include "protocol.h"
#include "seat.h"
@ -23,7 +23,7 @@ struct seat *seat_create(const char *seat_name, bool vt_bound) {
if (seat == NULL) {
return NULL;
}
list_init(&seat->clients);
linked_list_init(&seat->clients);
seat->vt_bound = vt_bound;
seat->curttyfd = -1;
seat->seat_name = strdup(seat_name);
@ -37,8 +37,8 @@ struct seat *seat_create(const char *seat_name, bool vt_bound) {
void seat_destroy(struct seat *seat) {
assert(seat);
while (seat->clients.length > 0) {
struct client *client = seat->clients.items[seat->clients.length - 1];
while (!linked_list_empty(&seat->clients)) {
struct client *client = (struct client *)seat->clients.next;
// This will cause the client to remove itself from the seat
assert(client->seat);
client_kill(client);
@ -65,7 +65,7 @@ int seat_add_client(struct seat *seat, struct client *client) {
client->seat = seat;
list_add(&seat->clients, client);
linked_list_insert(&seat->clients, &client->link);
log_debug("added client");
return 0;
}
@ -77,19 +77,7 @@ int seat_remove_client(struct client *client) {
struct seat *seat = client->seat;
// We must first remove the client to avoid reactivation
bool found = false;
for (size_t idx = 0; idx < seat->clients.length; idx++) {
struct client *c = seat->clients.items[idx];
if (client == c) {
list_del(&seat->clients, idx);
found = true;
break;
}
}
if (!found) {
log_debug("client was not on the client list");
}
linked_list_remove(&client->link);
if (seat->next_client == client) {
seat->next_client = NULL;
@ -108,7 +96,7 @@ int seat_remove_client(struct client *client) {
client->seat = NULL;
log_debug("removed client");
return found ? 0 : -1;
return 0;
}
struct seat_device *seat_find_device(struct client *client, int device_id) {
@ -498,8 +486,10 @@ int seat_set_next_session(struct client *client, int session) {
}
struct client *target = NULL;
for (size_t idx = 0; idx < seat->clients.length; idx++) {
struct client *c = seat->clients.items[idx];
for (struct linked_list *elem = seat->clients.next; elem != &seat->clients;
elem = elem->next) {
struct client *c = (struct client *)elem;
if (client_get_session(c) == session) {
target = c;
break;
@ -579,17 +569,18 @@ int seat_activate(struct seat *seat) {
// A specific client has been requested, use it
next_client = seat->next_client;
seat->next_client = NULL;
} else if (seat->clients.length > 0 && seat->vt_bound) {
} else if (!linked_list_empty(&seat->clients) && seat->vt_bound) {
// No client is requested, try to find an applicable one
for (size_t idx = 0; idx < seat->clients.length; idx++) {
struct client *client = seat->clients.items[idx];
for (struct linked_list *elem = seat->clients.next; elem != &seat->clients;
elem = elem->next) {
struct client *client = (struct client *)elem;
if (client->seat_vt == vt) {
next_client = client;
break;
}
}
} else if (seat->clients.length > 0) {
next_client = seat->clients.items[0];
} else if (!linked_list_empty(&seat->clients)) {
next_client = (struct client *)seat->clients.next;
}
if (next_client == NULL) {