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Allow timeouts to be cancelled

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This commit is contained in:
Daniel Drake
2008-03-03 23:23:50 +00:00
parent c29c3fa014
commit 2d27df0268
3 changed files with 19 additions and 11 deletions
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14
libfprint/poll.c
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@@ -89,7 +89,8 @@ static int timeout_sort_fn(gconstpointer _a, gconstpointer _b)
/* A timeout is the asynchronous equivalent of sleeping. You create a timeout
* saying that you'd like to have a function invoked at a certain time in
* the future. */
int fpi_timeout_add(unsigned int msec, fpi_timeout_fn callback, void *data)
struct fpi_timeout *fpi_timeout_add(unsigned int msec, fpi_timeout_fn callback,
void *data)
{
struct timespec ts;
struct timeval add_msec;
@@ -101,7 +102,7 @@ int fpi_timeout_add(unsigned int msec, fpi_timeout_fn callback, void *data)
r = clock_gettime(CLOCK_MONOTONIC, &ts);
if (r < 0) {
fp_err("failed to read monotonic clock, errno=%d", errno);
return r;
return NULL;
}
timeout = g_malloc(sizeof(*timeout));
@@ -118,7 +119,14 @@ int fpi_timeout_add(unsigned int msec, fpi_timeout_fn callback, void *data)
active_timers = g_slist_insert_sorted(active_timers, timeout,
timeout_sort_fn);
return 0;
return timeout;
}
void fpi_timeout_cancel(struct fpi_timeout *timeout)
{
fp_dbg("");
active_timers = g_slist_remove(active_timers, timeout);
g_free(timeout);
}
/* get the expiry time and optionally the timeout structure for the next