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Lock access to INTERFACE_CLASSIC thread on desktop POSIX

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This commit is contained in:
Aaron Culliney 2016-01-31 13:17:45 -08:00
parent 2c07a0fe94
commit e638c13d9d
1 changed files with 16 additions and 3 deletions
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19
src/interface.c
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@ -1003,6 +1003,7 @@ void c_interface_parameters()
{
--a2_video_mode;
}
extern void video_set_mode(a2_video_mode_t);
video_set_mode(a2_video_mode);
break;
#endif
@ -1099,6 +1100,7 @@ void c_interface_parameters()
{
++a2_video_mode;
}
extern void video_set_mode(a2_video_mode_t);
video_set_mode(a2_video_mode);
break;
#endif
@ -1530,8 +1532,13 @@ void c_interface_keyboard_layout()
c_interface_begin()
------------------------------------------------------------------------- */
static pthread_mutex_t classic_interface_lock = PTHREAD_MUTEX_INITIALIZER;
static pthread_t interface_thread_id = 0;
static void *interface_thread(void *current_key)
{
interface_thread_id = pthread_self();
cpu_pause();
switch ((__SWORD_TYPE)current_key) {
@ -1575,14 +1582,20 @@ static void *interface_thread(void *current_key)
cpu_resume();
interface_thread_id = 0;
pthread_mutex_unlock(&classic_interface_lock);
return NULL;
}
void c_interface_begin(int current_key)
{
pthread_t t = 0;
pthread_create(&t, NULL, (void *)&interface_thread, (void *)((__SWORD_TYPE)current_key));
pthread_detach(t);
if (interface_thread_id) {
return;
}
pthread_mutex_lock(&classic_interface_lock);
interface_thread_id=1; // interface thread starting ...
pthread_create(&interface_thread_id, NULL, (void *)&interface_thread, (void *)((__SWORD_TYPE)current_key));
pthread_detach(interface_thread_id);
}
#endif