file.c

国内一位牛人自己开发的操作系统

#include"../include/os.h"

struct file_window *set_file(int fd,
	union memory_call_parameter *par)
{
	struct file_window *f;

	par->open_file_window.file_window_id=fd;

	f=&(par->open_file_window.file_window);

	f->file.file.server_processor=0;
	f->file.file.server_process=2;
	f->file.file.file_handler=0;

	f->file.proxy.processor=0;
	f->file.proxy.process=((fd&0x01)==0)?2:2;

	f->file.open_window_id=fd;
	f->file.window_base_1=0;
	f->file.window_base_2=0;
	f->file.window_length=512*1024*1024;

	f->file.memory_process=0;
	f->file.right=READ_WRITE;

	RESET_CAPABILITY(f->file.capability);
	RESET_CAPABILITY(par->open_file_window.process_capability);

	f->file.read_in_flag=TRUE;
	f->file.swap_out_flag=TRUE;
	return f;
}

void init_file(void )
{
	int i;
	REG r;
	for(i=0;i<48;i++){
		set_file(i,get_memory_parameter());
		r.ax=0;r.bx=0;
		call_memory(&r);

		print("\n              open file",i);
		print(",memory processor process result is ",
			r.cx);
		r.ax=0;r.bx=11;r.cx=OPEN_FILE;r.dx=i;
		RESET_CAPABILITY(get_memory_parameter()
			->control_file_system.capability);
		call_memory(&r);
		print("\n                                file system result is ",r.ax);

	}
	return;
}