+
+static void plugin_ctx_destructor (void *ctx)
+{
+ sfree (ctx);
+} /* void plugin_ctx_destructor */
+
+static plugin_ctx_t ctx_init = { /* interval = */ 0 };
+
+static plugin_ctx_t *plugin_ctx_create (void)
+{
+ plugin_ctx_t *ctx;
+
+ ctx = malloc (sizeof (*ctx));
+ if (ctx == NULL) {
+ char errbuf[1024];
+ ERROR ("Failed to allocate plugin context: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return NULL;
+ }
+
+ *ctx = ctx_init;
+ assert (plugin_ctx_key_initialized);
+ pthread_setspecific (plugin_ctx_key, ctx);
+ DEBUG("Created new plugin context.");
+ return (ctx);
+} /* int plugin_ctx_create */
+
+void plugin_init_ctx (void)
+{
+ pthread_key_create (&plugin_ctx_key, plugin_ctx_destructor);
+ plugin_ctx_key_initialized = 1;
+} /* void plugin_init_ctx */
+
+plugin_ctx_t plugin_get_ctx (void)
+{
+ plugin_ctx_t *ctx;
+
+ assert (plugin_ctx_key_initialized);
+ ctx = pthread_getspecific (plugin_ctx_key);
+
+ if (ctx == NULL) {
+ ctx = plugin_ctx_create ();
+ /* this must no happen -- exit() instead? */
+ if (ctx == NULL)
+ return ctx_init;
+ }
+
+ return (*ctx);
+} /* plugin_ctx_t plugin_get_ctx */
+
+plugin_ctx_t plugin_set_ctx (plugin_ctx_t ctx)
+{
+ plugin_ctx_t *c;
+ plugin_ctx_t old;
+
+ assert (plugin_ctx_key_initialized);
+ c = pthread_getspecific (plugin_ctx_key);
+
+ if (c == NULL) {
+ c = plugin_ctx_create ();
+ /* this must no happen -- exit() instead? */
+ if (c == NULL)
+ return ctx_init;
+ }
+
+ old = *c;
+ *c = ctx;
+
+ return (old);
+} /* void plugin_set_ctx */
+
+cdtime_t plugin_get_interval (void)
+{
+ cdtime_t interval;
+
+ interval = plugin_get_ctx().interval;
+ if (interval > 0)
+ return interval;
+
+ return cf_get_default_interval ();
+} /* cdtime_t plugin_get_interval */
+
+typedef struct {
+ plugin_ctx_t ctx;
+ void *(*start_routine) (void *);
+ void *arg;
+} plugin_thread_t;
+
+static void *plugin_thread_start (void *arg)
+{
+ plugin_thread_t *plugin_thread = arg;
+
+ void *(*start_routine) (void *) = plugin_thread->start_routine;
+ void *plugin_arg = plugin_thread->arg;
+
+ plugin_set_ctx (plugin_thread->ctx);
+
+ free (plugin_thread);
+
+ return start_routine (plugin_arg);
+} /* void *plugin_thread_start */
+
+int plugin_thread_create (pthread_t *thread, const pthread_attr_t *attr,
+ void *(*start_routine) (void *), void *arg)
+{
+ plugin_thread_t *plugin_thread;
+
+ plugin_thread = malloc (sizeof (*plugin_thread));
+ if (plugin_thread == NULL)
+ return -1;
+
+ plugin_thread->ctx = plugin_get_ctx ();
+ plugin_thread->start_routine = start_routine;
+ plugin_thread->arg = arg;
+
+ return pthread_create (thread, attr,
+ plugin_thread_start, plugin_thread);
+} /* int plugin_thread_create */
+
+/* vim: set sw=8 ts=8 noet fdm=marker : */