diff options
Diffstat (limited to 'cethcan/can.c')
-rw-r--r-- | cethcan/can.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/cethcan/can.c b/cethcan/can.c new file mode 100644 index 0000000..be8c635 --- /dev/null +++ b/cethcan/can.c @@ -0,0 +1,46 @@ +#include "cethcan.h" + +static struct can_user *users = NULL, **userlast = &users; + +void can_register(struct can_user *user) +{ + user->next = NULL; + *userlast = user; + userlast = &user->next; +} + +struct can_user *can_register_alloc(void *arg, can_handler handler, + const char *fmt, ...) +{ + struct can_user *user; + char *name = NULL; + va_list ap; + + va_start(ap, fmt); + vasprintf(&name, fmt, ap); + va_end(ap); + + user = calloc(sizeof(*user), 1); + user->arg = arg; + user->handler = handler; + user->name = name; + + can_register(user); + return user; +} + +void can_broadcast(struct can_user *origin, struct can_message *msg) +{ + struct can_user *u; + + msg->origin = origin; + for (u = users; u; u = u->next) + if (u != origin) + u->handler(u->arg, msg); +} + +void can_init(void) +{ + /* nothing to do */ +} + |