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Simplified threads implementation somewhat

This commit is contained in:
Devine Lu Linvega 2023-05-03 11:32:38 -07:00
parent 29e130ace0
commit 7d1c62b2cb
1 changed files with 18 additions and 27 deletions
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45
src/devices/system.c
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@ -75,14 +75,11 @@ system_inspect(Uxn *u)
system_print(&u->rst, "rst");
}
/* Friends */
static Uint8 *global_ram, friends_count = 0;
static Uint16 friends_tasks[MAX_FRIENDS];
static pthread_t friends[MAX_FRIENDS];
Uint8 *global_ram;
Uint16 friends_tasks[MAX_FRIENDS];
pthread_t friends[MAX_FRIENDS];
int friends_count = 0;
void *
static void *
friend_task(void *vector)
{
Uxn friend;
@ -91,26 +88,20 @@ friend_task(void *vector)
return NULL;
}
int
wait_friends(void)
static void
system_friend(Uint8 *ram, Uint16 task)
{
int i;
for(i = 0; i < friends_count; ++i)
pthread_join(friends[i], NULL);
return friends_count = 0;
}
int
spawn_friend(Uint8 *ram, Uint16 task)
{
if(!task)
return wait_friends();
if(friends_count >= MAX_FRIENDS)
return system_error("friends", "Too many threads");
global_ram = ram;
friends_tasks[friends_count] = task;
pthread_create(&friends[friends_count], NULL, friend_task, (void *)&friends_tasks[friends_count]);
return friends_count++;
if(!task) {
while(friends_count)
pthread_join(friends[--friends_count], NULL);
} else if(friends_count >= MAX_FRIENDS) {
system_error("friends", "Too many threads");
} else {
global_ram = ram;
friends_tasks[friends_count] = task;
pthread_create(&friends[friends_count], NULL, friend_task, (void *)&friends_tasks[friends_count]);
friends_count++;
}
}
/* IO */
@ -123,7 +114,7 @@ system_deo(Uxn *u, Uint8 *d, Uint8 port)
system_cmd(u->ram, PEEK2(d + 2));
break;
case 0x5:
spawn_friend(u->ram, PEEK2(d + 4));
system_friend(u->ram, PEEK2(d + 4));
break;
case 0xe:
system_inspect(u);