! untested changes

include/gp/vfs/process_data.hpp

@@ -21,6 +21,16 @@ namespace gp {
 
 	using pid_t = size_t;
 
+	struct base_process_info {
+		virtual void initialize() {}
+		virtual void checkpoint() {}
+		virtual void restore() {}
+		virtual void switch_in() {}
+		virtual void switch_out() {}
+		virtual void cleanup() {}
+		virtual ~base_process_info() {}
+	};
+
 	struct process_data{
 		pid_t pid;
 		gp::function<void()> fn;
@@ -29,14 +39,15 @@ namespace gp {
 		gp::process_status state;
 		std::atomic_bool is_running;
 		[[no_unique_address]] gp::specifics::platform_data specifics;
-		gp::indexed_array<gp::file_description*, gp_config::limits::max_fd_per_process> fds;
+		gp::unique_ptr<base_process_info> info;
 
-		process_data(gp::function<void()> _fn, void* _stack, size_t _stack_sz) 
+		process_data(gp::function<void()> _fn, void* _stack, size_t _stack_sz, gp::unique_ptr<base_process_info>&& _info) 
 		: fn(_fn)
 		, stack(_stack)
 		, stack_sz(_stack_sz)
 		, state(gp::process_status::inactive)
 		, specifics(gp::buffer<char>{(char*)stack, stack_sz})
+		, info(_info)
 		{}
 
 		process_data(process_data&& v)
@@ -45,7 +56,14 @@ namespace gp {
 		, stack_sz(v.stack_sz)
 		, state(v.state)
 		, specifics(v.specifics)
+		, info(gp::move(v.info))
 		{}
+
+		~process_data() {
+			if(info) {
+				info->cleanup();
+			}
+		}
 	};
 
 }