X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flib%2Fuser%2Fsyscall.h;h=8a9e0c013e91a74bb87b318b7f2f3f094c341bd6;hb=6d19139b337fcb7c9b31e5b6724e6ae19499e4c5;hp=e10d39e1fd47e3e7997c78354bf6f6bfcce2d7e9;hpb=6916b246f3be8c72d6e77fd98c4a1447fd2c1de7;p=pintos-anon

diff --git a/src/lib/user/syscall.h b/src/lib/user/syscall.h
index e10d39e..8a9e0c0 100644
--- a/src/lib/user/syscall.h
+++ b/src/lib/user/syscall.h
@@ -4,17 +4,45 @@
 #include <stdbool.h>
 #include <debug.h>
 
+/* 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 *);
-int join (pid_t);
-bool create (const char *);
-bool remove (const char *);
-int open (const char *);
-int read (int fd, void *, unsigned);
-int write (int fd, const void *, unsigned);
+pid_t exec (const char *file);
+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 */