Kernel: Add basic IPC and move to microkernel design.

The IPC design is currently a WIP and is nowhere near complete

1 files changed, 26 insertions, 0 deletions

diff --git a/kernel/ipc.h b/kernel/ipc.h
new file mode 100644
index 0000000..cfa9e6d
--- /dev/null
+++ b/kernel/ipc.h
@@ -0,0 +1,26 @@
+#ifndef IPC_H
+#define IPC_H
+#include <stdbool.h>
+#include <typedefs.h>
+
+#define IPC_BUFFER_SIZE 4096
+#define IPC_NUM_DATA 32
+
+struct IpcMessage {
+  u8 is_used;
+  u32 sender_pid;
+  u32 size;
+  u8 buffer[IPC_BUFFER_SIZE];
+};
+
+struct IpcMailbox {
+  u32 read_ptr;
+  u32 write_ptr;
+  struct IpcMessage data[IPC_NUM_DATA];
+};
+
+bool ipc_register_endpoint(u32 endpoint);
+int ipc_write_to_process(int pid, u8 *buffer, u32 length);
+int ipc_write(int ipc_id, u8 *buffer, u32 length);
+int ipc_read(u8 *buffer, u32 length, u32 *sender_pid);
+#endif