pa_operation_cancel;
pa_operation_get_state;
pa_operation_ref;
+pa_operation_set_state_callback;
pa_operation_unref;
pa_parse_sample_format;
pa_path_get_filename;
pa_operation_state_t state;
void *userdata;
pa_operation_cb_t callback;
+ void *state_userdata;
+ pa_operation_notify_cb_t state_callback;
void *private; /* some operations might need this */
};
#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
#include <pulsecore/flist.h>
+#include <pulse/fork-detect.h>
#include "internal.h"
#include "operation.h"
o->stream = NULL;
o->callback = NULL;
o->userdata = NULL;
+ o->state_callback = NULL;
+ o->state_userdata = NULL;
}
static void operation_set_state(pa_operation *o, pa_operation_state_t st) {
o->state = st;
+ if (o->state_callback)
+ o->state_callback(o, o->state_userdata);
+
if ((o->state == PA_OPERATION_DONE) || (o->state == PA_OPERATION_CANCELED))
operation_unlink(o);
return o->state;
}
+
+void pa_operation_set_state_callback(pa_operation *o, pa_operation_notify_cb_t cb, void *userdata) {
+ pa_assert(o);
+ pa_assert(PA_REFCNT_VALUE(o) >= 1);
+
+ if (pa_detect_fork())
+ return;
+
+ if (o->state == PA_OPERATION_DONE || o->state == PA_OPERATION_CANCELED)
+ return;
+
+ o->state_callback = cb;
+ o->state_userdata = userdata;
+}
/** An asynchronous operation object */
typedef struct pa_operation pa_operation;
+/** A callback for operation state changes */
+typedef void (*pa_operation_notify_cb_t) (pa_operation *o, void *userdata);
+
/** Increase the reference count by one */
pa_operation *pa_operation_ref(pa_operation *o);
/** Return the current status of the operation */
pa_operation_state_t pa_operation_get_state(pa_operation *o);
+/** Set the callback function that is called when the operation
+ * is canceled due to disconnection. \since 4.0 */
+void pa_operation_set_state_callback(pa_operation *o, pa_operation_notify_cb_t cb, void *userdata);
+
PA_C_DECL_END
#endif