procqueue: Add some mechanism to queue 'processing items' on the frames

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/include/gapk/procqueue.h b/include/gapk/procqueue.h
new file mode 100644
index 0000000..59f567e
--- /dev/null
+++ b/include/gapk/procqueue.h
@@ -0,0 +1,43 @@
+/* Processing Queue Management */
+
+/*
+ * This file is part of gapk (GSM Audio Pocket Knife).
+ *
+ * gapk is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gapk is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gapk.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GAPK_PROCQUEUE_H__
+#define __GAPK_PROCQUEUE_H__
+
+#include <stdint.h>
+#include <stdio.h> /* for FILE */
+
+struct pq;
+
+struct pq_item {
+	int len_in;
+	int len_out;
+	void *state;
+	int  (*proc)(void *state, uint8_t *out, const uint8_t *in);
+	void (*exit)(void *state);
+};
+
+/* Management */
+struct pq *		pq_create(void);
+void			pq_destroy(struct pq *pq);
+struct pq_item *	pq_add_item(struct pq *pq);
+int			pq_prepare(struct pq *pq);
+int			pq_execute(struct pq *pq);
+
+#endif /* __GAPK_PROCQUEUE_H__ */