From b5f0874cd96ee2a62aabc645b9626c2749cb6a01 Mon Sep 17 00:00:00 2001 From: manuel Date: Mon, 26 Mar 2012 12:54:45 +0200 Subject: initial pintos checkin --- pintos-progos/lib/user/syscall.h | 48 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 pintos-progos/lib/user/syscall.h (limited to 'pintos-progos/lib/user/syscall.h') diff --git a/pintos-progos/lib/user/syscall.h b/pintos-progos/lib/user/syscall.h new file mode 100644 index 0000000..a1bcf0b --- /dev/null +++ b/pintos-progos/lib/user/syscall.h @@ -0,0 +1,48 @@ +#ifndef __LIB_USER_SYSCALL_H +#define __LIB_USER_SYSCALL_H + +#include +#include + +/* Process identifier. */ +typedef int pid_t; +#define PID_ERROR ((pid_t) -1) + +/* Map region identifier. */ +typedef int mapid_t; +#define MAP_FAILED ((mapid_t) -1) + +/* Maximum characters in a filename written by readdir(). */ +#define READDIR_MAX_LEN 14 + +/* Typical return values from main() and arguments to exit(). */ +#define EXIT_SUCCESS 0 /* Successful execution. */ +#define EXIT_FAILURE 1 /* Unsuccessful execution. */ + +/* Projects 2 and later. */ +void halt (void) NO_RETURN; +void exit (int status) NO_RETURN; +pid_t exec (const char *cmd_line); +int wait (pid_t); +bool create (const char *file, unsigned initial_size); +bool remove (const char *file); +int open (const char *file); +int filesize (int fd); +int read (int fd, void *buffer, unsigned length); +int write (int fd, const void *buffer, unsigned length); +void seek (int fd, unsigned position); +unsigned tell (int fd); +void close (int fd); + +/* Project 3 and optionally project 4. */ +mapid_t mmap (int fd, void *addr); +void munmap (mapid_t); + +/* Project 4 only. */ +bool chdir (const char *dir); +bool mkdir (const char *dir); +bool readdir (int fd, char name[READDIR_MAX_LEN + 1]); +bool isdir (int fd); +int inumber (int fd); + +#endif /* lib/user/syscall.h */ -- cgit v1.2.3