-/** Grab clients that are not yet attached any btr node. */
-static struct list_head inactive_grab_client_list;
+/**
+ * How to handle blocking writes for the grab client fds.
+ */
+enum grab_mode {
+ /** Ignore the data and do not write. */
+ GM_SLOPPY,
+ /** Write anyway (default). */
+ GM_AGGRESSIVE,
+ /** Close fd if write would block. */
+ GM_PEDANTIC,
+};
+
+/** Flags specified as arguments to the grab command. */
+enum grab_flags {
+ /** Stop grabbing if audio file changes. */
+ GF_ONE_SHOT = 1,
+};
+
+/** Describes one active grab client. */
+struct grab_client {
+ /* The value of the -p option. */
+ char *parent;
+ /* The value of the -n option. */
+ char *name;
+ /** The file descriptor to send the grabbed stream to. */
+ int fd;
+ /** See \ref grab_mode. */
+ enum grab_mode mode;
+ /** Flags given at the command line. */
+ enum grab_flags flags;
+ /** The point of the grab client's node in the buffer tree. */
+ struct btr_node *btrn;
+ /* The task of this grab client. */
+ struct task task;
+ /** Belongs to either the active or the inactive list. */
+ struct list_head node;
+};