Move waiter to library

[petitboot] / discover / waiter.c

diff --git a/discover/waiter.c b/discover/waiter.c
deleted file mode 100644 (file)
index 21dd4a5..0000000
--- a/discover/waiter.c
+++ /dev/null
@@ -1,83 +0,0 @@
-
-#include <poll.h>
-#include <string.h>
-#include <assert.h>
-
-#include <talloc/talloc.h>
-
-#include "waiter.h"
-
-struct waiter {
-       int             fd;
-       int             events;
-       waiter_cb       callback;
-       void            *arg;
-};
-
-static struct waiter *waiters;
-static int n_waiters;
-
-struct waiter *waiter_register(int fd, int events,
-               waiter_cb callback, void *arg)
-{
-       struct waiter *waiter;
-
-       n_waiters++;
-
-       waiters = talloc_realloc(NULL, waiters, struct waiter, n_waiters);
-       waiter = &waiters[n_waiters - 1];
-
-       waiter->fd = fd;
-       waiter->events = events;
-       waiter->callback = callback;
-       waiter->arg = arg;
-
-       return 0;
-}
-
-void waiter_remove(struct waiter *waiter)
-{
-       int i;
-
-       i = waiter - waiters;
-       assert(i >= 0 && i < n_waiters);
-
-       n_waiters--;
-       memmove(&waiters[i], &waiters[i+1], n_waiters - i);
-
-       waiters = talloc_realloc(NULL, waiters, struct waiter, n_waiters);
-}
-
-int waiter_poll(void)
-{
-       static struct pollfd *pollfds;
-       static int n_pollfds;
-       int i, rc;
-
-       if (n_waiters > n_pollfds) {
-               pollfds = talloc_realloc(NULL, pollfds,
-                               struct pollfd, n_waiters);
-       }
-
-       for (i = 0; i < n_waiters; i++) {
-               pollfds[i].fd = waiters[i].fd;
-               pollfds[i].events = waiters[i].events;
-               pollfds[i].revents = 0;
-       }
-
-       rc = poll(pollfds, n_waiters, -1);
-
-       if (rc <= 0)
-               return rc;
-
-       for (i = 0; i < n_waiters; i++) {
-               if (pollfds[i].revents) {
-                       rc = waiters[i].callback(waiters[i].arg);
-
-                       if (rc)
-                               waiter_remove(&waiters[i]);
-               }
-       }
-
-       return 0;
-}