1 files changed, 43 insertions, 0 deletions
diff --git a/src/kernel/include/process.h b/src/kernel/include/process.h
new file mode 100644
index 0000000..00ed1d7
--- /dev/null
+++ b/src/kernel/include/process.h
@@ -0,0 +1,43 @@
+#pragma once
+
+// Things described in this file are essentially a public interface
+// All implementation details are hidden in process.c
+
+#include <thread.h>
+
+#include <hashtbl.h>
+#include <buffer.h>
+
+#define PW_NOT_WAITING		0
+#define PW_WAIT_ANY_MSG		1
+#define PW_WAIT_MSG_ON_CHAN	2
+
+#define PROCESS_MAILBOX_SIZE 42
+
+typedef int chan_id_t;
+
+typedef struct chan_pair {
+	chan_id_t fst, snd;
+} chan_pair_t;
+
+typedef struct message {
+	buffer_t *data;
+	chan_id_t chan_id;
+} message_t;
+
+struct process;
+typedef struct process process_t;
+
+process_t *new_process(entry_t entry, void* data, chan_pair_t *give_chans);
+
+chan_pair_t new_chan();		// not used very often, but still usefull
+chan_id_t unbox_chan(chan_id_t chan, chan_id_t subchan);
+void detach_chan(chan_id_t chan);		// chan ID is freed
+
+int send_message(chan_id_t chan, buffer_t *msg);	// nonnull on error (recipient queue is full)
+
+size_t await_message();		// returns the size of the first message to come
+size_t await_message_on_chan(chan_id_t chan);		// returns the size of the first message to come
+message_t get_message();	// gets the first message in the queue (or nothing when queue is empty)
+
+/* vim: set ts=4 sw=4 tw=0 noet :*/