Various renaming and refactoring

include/kernel.h

@@ -7,6 +7,7 @@
 #include "mmgr.h"
 #include "syscalls.h"
 #include "types/syscallid.h"
+#include "types/status.h"
 #include <stddef.h>
 
 #define MAX_SYSCALL_ID 256
@@ -83,29 +84,35 @@ struct kernel_t
 
 void kernel_initialize(struct boot_info_t *boot_info);
 
-int set_syscall(int id, int arg_count, int pid, void *func_ptr);
+enum error_t set_syscall(int id, int arg_count, int pid, void *func_ptr);
 
 size_t do_syscall(enum syscall_id_t id, syscall_arg_t arg1, syscall_arg_t arg2, syscall_arg_t arg3, void *pc, void *stack, unsigned long flags);
 
-int load_module(struct module_t *module);
+enum error_t kernel_load_module(struct module_t *module);
 
-int active_process();
+unsigned long kernel_current_pid();
 
-int add_process(void *program_entry, int priority, physaddr_t address_space);
+struct process_context_t *kernel_current_context();
 
-struct process_context_t *next_process();
+enum error_t kernel_store_active_context(struct process_context_t *context, size_t size);
 
-int terminate_process(size_t process_id);
+enum error_t kernel_spawn_process(void *program_entry, int priority, physaddr_t address_space);
 
-int store_active_context(struct process_context_t *context, size_t size);
+struct process_context_t *kernel_advance_scheduler();
 
-struct process_context_t *get_active_context();
+enum error_t kernel_terminate_process(size_t process_id);
 
-int open_port(unsigned long id);
+enum error_t kernel_create_port(unsigned long id);
 
-int close_port(unsigned long id);
+enum error_t kernel_remove_port(unsigned long id);
 
-int send_message(int recipient, struct message_t *message, int flags);
+unsigned long kernel_get_port_owner(unsigned long id);
+
+enum error_t kernel_send_message(int recipient, struct message_t *message);
+
+enum error_t kernel_queue_sender(int recipient);
+
+enum error_t kernel_queue_message(int recipient, struct message_t *message);
 
 int receive_message(struct message_t *buffer, int flags);