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Refactor AOA handling 

Extract event processing to a separate function.

This will make the code more readable when more event types will be
added.

PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>
This commit is contained in:
Romain Vimont 2024-09-06 23:08:08 +02:00
parent 2dd02ebb80
commit 9af3bacdd6
1 changed files with 39 additions and 26 deletions
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65
app/src/usb/aoa_hid.c
View File

@ -221,6 +221,41 @@ sc_aoa_push_hid_event_with_ack_to_wait(struct sc_aoa *aoa,
return !full;
}
static bool
sc_aoa_process_event(struct sc_aoa *aoa, struct sc_aoa_event *event) {
uint64_t ack_to_wait = event->ack_to_wait;
if (ack_to_wait != SC_SEQUENCE_INVALID) {
LOGD("Waiting ack from server sequence=%" PRIu64_, ack_to_wait);
// If some events have ack_to_wait set, then sc_aoa must have been
// initialized with a non NULL acksync
assert(aoa->acksync);
// Do not block the loop indefinitely if the ack never comes (it
// should never happen)
sc_tick deadline = sc_tick_now() + SC_TICK_FROM_MS(500);
enum sc_acksync_wait_result result =
sc_acksync_wait(aoa->acksync, ack_to_wait, deadline);
if (result == SC_ACKSYNC_WAIT_TIMEOUT) {
LOGW("Ack not received after 500ms, discarding HID event");
// continue to process events
return true;
} else if (result == SC_ACKSYNC_WAIT_INTR) {
// stopped
return false;
}
}
bool ok = sc_aoa_send_hid_event(aoa, &event->hid);
if (!ok) {
LOGW("Could not send HID event to USB device");
}
// continue to process events
return true;
}
static int
run_aoa_thread(void *data) {
struct sc_aoa *aoa = data;
@ -238,34 +273,12 @@ run_aoa_thread(void *data) {
assert(!sc_vecdeque_is_empty(&aoa->queue));
struct sc_aoa_event event = sc_vecdeque_pop(&aoa->queue);
uint64_t ack_to_wait = event.ack_to_wait;
sc_mutex_unlock(&aoa->mutex);
if (ack_to_wait != SC_SEQUENCE_INVALID) {
LOGD("Waiting ack from server sequence=%" PRIu64_, ack_to_wait);
// If some events have ack_to_wait set, then sc_aoa must have been
// initialized with a non NULL acksync
assert(aoa->acksync);
// Do not block the loop indefinitely if the ack never comes (it
// should never happen)
sc_tick deadline = sc_tick_now() + SC_TICK_FROM_MS(500);
enum sc_acksync_wait_result result =
sc_acksync_wait(aoa->acksync, ack_to_wait, deadline);
if (result == SC_ACKSYNC_WAIT_TIMEOUT) {
LOGW("Ack not received after 500ms, discarding HID event");
continue;
} else if (result == SC_ACKSYNC_WAIT_INTR) {
// stopped
break;
}
}
bool ok = sc_aoa_send_hid_event(aoa, &event.hid);
if (!ok) {
LOGW("Could not send HID event to USB device");
bool cont = sc_aoa_process_event(aoa, &event);
if (!cont) {
// stopped
break;
}
}
return 0;