pipes: initial implementation

src/include/kernel/pipe.h

@@ -0,0 +1,21 @@
+#ifndef _PIPE_H_INCLUDE
+#define _PIPE_H_INCLUDE
+
+#include <ringbuffer.h>
+#include <kernel/event.h>
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct{
+	int lock;
+	event_t revent, wevent;
+	ringbuffer_t buff;
+	uintmax_t readers, writers;
+} pipe_t;
+
+pipe_t* pipe_create(size_t buffsize);
+void	pipe_drestroy(pipe_t* pipe);
+int pipe_read(pipe_t* pipe, void* buff, size_t count, int* error);
+int pipe_write(pipe_t* pipe, void* buff, size_t count, int* error);
+
+#endif

src/include/kernel/vfs.h

@@ -24,6 +24,7 @@ typedef struct _vnode_t {
 	void* fsdata;
 	size_t refcount;
 	struct _dirnode_t* parent;
+	void* objdata;
 } vnode_t;
 
 // folders are an expansion of vnode_t to save memory