procqueue: expose the processing queue struct definition

To be able to use processing queues from outside, the pq struct
should be shared in the corresponding header file.

include/osmocom/gapk/procqueue.h

@@ -22,8 +22,6 @@
 #include <stdint.h>
 #include <stdio.h> /* for FILE */
 
-struct pq;
-
 struct pq_item {
 	/*! input frame size (in bytes). '0' in case of variable frames */
 	int len_in;
@@ -41,6 +39,15 @@ struct pq_item {
 	void (*exit)(void *state);
 };
 
+#define VAR_BUF_SIZE	320
+#define MAX_PQ_ITEMS	8
+
+struct pq {
+	unsigned n_items;
+	struct pq_item *items[MAX_PQ_ITEMS];
+	void *buffers[MAX_PQ_ITEMS + 1];
+};
+
 /* Management */
 struct pq *		pq_create(void);
 void			pq_destroy(struct pq *pq);

src/procqueue.c

@@ -23,16 +23,6 @@
 
 #include <osmocom/gapk/procqueue.h>
 
-#define VAR_BUF_SIZE	320
-#define MAX_PQ_ITEMS	8
-
-struct pq {
-	int		n_items;
-	struct pq_item* items[MAX_PQ_ITEMS];
-	void *		buffers[MAX_PQ_ITEMS+1];
-};
-
-
 /* crate a new (empty) processing queue */
 struct pq *
 pq_create(void)