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add mutexes for arena retrieval functions

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This commit is contained in:
itsmattkc 2024-11-15 19:59:15 -08:00
parent b3ab7dcf5a
commit b17645c71e
1 changed files with 5 additions and 0 deletions
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5
lib/gamepad/gamepad.c
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@ -35,6 +35,7 @@ uint16_t PORT_CMD;
#define EVENT_BUFFER_SIZE 65536
#define EVENT_BUFFER_ARENA_SIZE VANILLA_MAX_EVENT_COUNT * 2
uint8_t *EVENT_BUFFER_ARENA[EVENT_BUFFER_ARENA_SIZE] = {0};
pthread_mutex_t event_buffer_mutex = PTHREAD_MUTEX_INITIALIZER;
void send_to_console(int fd, const void *data, size_t data_size, int port)
{
@ -361,6 +362,7 @@ void *get_event_buffer()
{
void *buf = NULL;
pthread_mutex_lock(&event_buffer_mutex);
for (size_t i = 0; i < EVENT_BUFFER_ARENA_SIZE; i++) {
if (EVENT_BUFFER_ARENA[i]) {
buf = EVENT_BUFFER_ARENA[i];
@ -368,18 +370,21 @@ void *get_event_buffer()
break;
}
}
pthread_mutex_unlock(&event_buffer_mutex);
return buf;
}
void release_event_buffer(void *buffer)
{
pthread_mutex_lock(&event_buffer_mutex);
for (size_t i = 0; i < EVENT_BUFFER_ARENA_SIZE; i++) {
if (!EVENT_BUFFER_ARENA[i]) {
EVENT_BUFFER_ARENA[i] = buffer;
break;
}
}
pthread_mutex_unlock(&event_buffer_mutex);
}
void init_event_buffer_arena()