/*
* Private structures
*/
+#define RF_SIMPLE 0
+#define RF_COMPLEX 1
struct read_func_s
{
int wait_time;
int wait_left;
- int (*callback) (void);
+ int type;
+ union
+ {
+ int (*cb_simple) (void);
+ plugin_read_cb cb_complex;
+ } callback;
enum { DONE = 0, TODO = 1, ACTIVE = 2 } needs_read;
+ user_data_t udata;
};
typedef struct read_func_s read_func_t;
+struct write_func_s
+{
+ plugin_write_cb callback;
+ user_data_t udata;
+};
+typedef struct write_func_s write_func_t;
+
/*
* Private variables
*/
return (0);
} /* int register_callback */
+static void plugin_user_data_destroy (user_data_t *ud)
+{
+ if ((ud != NULL) && (ud->data != NULL) && (ud->free_func != NULL))
+ {
+ ud->free_func (ud->data);
+ ud->data = NULL;
+ ud->free_func = NULL;
+ }
+} /* void plugin_user_data_destroy */
+
static int plugin_unregister (llist_t *list, const char *name)
{
llentry_t *e;
(unsigned long int) pthread_self (), le->key);
pthread_mutex_unlock (&read_lock);
- status = rf->callback ();
+ if (rf->type == RF_SIMPLE)
+ {
+ status = rf->callback.cb_simple ();
+ }
+ else
+ {
+ assert (rf->type == RF_COMPLEX);
+ status = rf->callback.cb_complex (&rf->udata);
+ }
done++;
if (status != 0)
int ret;
struct stat statbuf;
struct dirent *de;
+ int status;
DEBUG ("type = %s", type);
/* `cpu' should not match `cpufreq'. To solve this we add `.so' to the
* type when matching the filename */
- if (ssnprintf (typename, sizeof (typename),
- "%s.so", type) >= sizeof (typename))
+ status = ssnprintf (typename, sizeof (typename), "%s.so", type);
+ if ((status < 0) || ((size_t) status >= sizeof (typename)))
{
WARNING ("snprintf: truncated: `%s.so'", type);
return (-1);
if (strncasecmp (de->d_name, typename, typename_len))
continue;
- if (ssnprintf (filename, sizeof (filename),
- "%s/%s", dir, de->d_name) >= sizeof (filename))
+ status = ssnprintf (filename, sizeof (filename),
+ "%s/%s", dir, de->d_name);
+ if ((status < 0) || ((size_t) status >= sizeof (filename)))
{
WARNING ("snprintf: truncated: `%s/%s'", dir, de->d_name);
continue;
return (-1);
}
- memset (rf, '\0', sizeof (read_func_t));
+ memset (rf, 0, sizeof (read_func_t));
rf->wait_time = interval_g;
rf->wait_left = 0;
- rf->callback = callback;
+ rf->type = RF_SIMPLE;
+ rf->callback.cb_simple = callback;
rf->needs_read = DONE;
+ rf->udata.data = NULL;
+ rf->udata.free_func = NULL;
return (register_callback (&list_read, name, (void *) rf));
} /* int plugin_register_read */
+int plugin_register_complex_read (const char *name,
+ plugin_read_cb callback, user_data_t *user_data)
+{
+ read_func_t *rf;
+
+ rf = (read_func_t *) malloc (sizeof (read_func_t));
+ if (rf == NULL)
+ {
+ ERROR ("plugin_register_complex_read: malloc failed.");
+ return (-1);
+ }
+
+ memset (rf, 0, sizeof (read_func_t));
+ rf->wait_time = interval_g;
+ rf->wait_left = 0;
+ rf->type = RF_COMPLEX;
+ rf->callback.cb_complex = callback;
+ rf->needs_read = DONE;
+
+ /* Set user data */
+ if (user_data == NULL)
+ {
+ rf->udata.data = NULL;
+ rf->udata.free_func = NULL;
+ }
+ else
+ {
+ rf->udata = *user_data;
+ }
+
+ return (register_callback (&list_read, name, (void *) rf));
+} /* int plugin_register_complex_read */
+
int plugin_register_write (const char *name,
- int (*callback) (const data_set_t *ds, const value_list_t *vl))
+ plugin_write_cb callback, user_data_t *user_data)
{
- return (register_callback (&list_write, name, (void *) callback));
+ write_func_t *wr;
+
+ wr = (write_func_t *) malloc (sizeof (*wr));
+ if (wr == NULL)
+ {
+ ERROR ("plugin_register_write: malloc failed.");
+ return (-1);
+ }
+ memset (wr, 0, sizeof (*wr));
+
+ wr->callback = callback;
+ if (user_data == NULL)
+ {
+ wr->udata.data = NULL;
+ wr->udata.free_func = NULL;
+ }
+ else
+ {
+ wr->udata = *user_data;
+ }
+
+ return (register_callback (&list_write, name, (void *) wr));
} /* int plugin_register_write */
int plugin_register_flush (const char *name,
int plugin_unregister_read (const char *name)
{
llentry_t *e;
+ read_func_t *rf;
e = llist_search (list_read, name);
return (-1);
llist_remove (list_read, e);
- free (e->value);
+
+ rf = (read_func_t *) e->value;
+ plugin_user_data_destroy (&rf->udata);
+ free (rf);
free (e->key);
+
llentry_destroy (e);
return (0);
int plugin_unregister_write (const char *name)
{
- return (plugin_unregister (list_write, name));
+ llentry_t *e;
+ write_func_t *wf;
+
+ e = llist_search (list_write, name);
+
+ if (e == NULL)
+ return (-1);
+
+ llist_remove (list_write, e);
+
+ wf = (write_func_t *) e->value;
+ plugin_user_data_destroy (&wf->udata);
+ free (wf);
+ free (e->key);
+
+ llentry_destroy (e);
+
+ return (0);
}
int plugin_unregister_flush (const char *name)
le = le->next)
{
rf = (read_func_t *) le->value;
- status = rf->callback ();
+
+ if (rf->type == RF_SIMPLE)
+ {
+ status = rf->callback.cb_simple ();
+ }
+ else
+ {
+ assert (rf->type == RF_COMPLEX);
+ status = rf->callback.cb_complex (&rf->udata);
+ }
+
if (status != 0)
{
NOTICE ("read-function of plugin `%s' failed.",
int plugin_write (const char *plugin, /* {{{ */
const data_set_t *ds, const value_list_t *vl)
{
- int (*callback) (const data_set_t *ds, const value_list_t *vl);
llentry_t *le;
int status;
le = llist_head (list_write);
while (le != NULL)
{
- callback = le->value;
- status = (*callback) (ds, vl);
+ write_func_t *wf = le->value;
+
+ DEBUG ("plugin: plugin_write: Writing values via %s.", le->key);
+ status = wf->callback (ds, vl, &wf->udata);
if (status != 0)
failure++;
else
}
else /* plugin != NULL */
{
+ write_func_t *wf;
le = llist_head (list_write);
while (le != NULL)
{
if (le == NULL)
return (ENOENT);
- callback = le->value;
- status = (*callback) (ds, vl);
+ wf = le->value;
+
+ DEBUG ("plugin: plugin_write: Writing values via %s.", le->key);
+ status = wf->callback (ds, vl, &wf->udata);
}
return (status);
return (0);
} /* int plugin_notification_meta_copy */
-int plugin_notification_meta_free (notification_t *n)
+int plugin_notification_meta_free (notification_meta_t *n)
{
notification_meta_t *this;
notification_meta_t *next;
return (-1);
}
- this = n->meta;
- n->meta = NULL;
+ this = n;
while (this != NULL)
{
next = this->next;
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