X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flib%2Fuser%2Fsyscall.h;h=8a9e0c013e91a74bb87b318b7f2f3f094c341bd6;hb=0db48366884f3d6418217b926c4febc1bc2a3c13;hp=8dd88fb440f19abeda8544ac7611a3fd16ba2413;hpb=f2f8875638593bd5365cfd6a5ba7c9578e52322f;p=pintos-anon

diff --git a/src/lib/user/syscall.h b/src/lib/user/syscall.h
index 8dd88fb..8a9e0c0 100644
--- a/src/lib/user/syscall.h
+++ b/src/lib/user/syscall.h
@@ -1,20 +1,48 @@
-#ifndef LIB_USER_SYSCALL_H
-#define LIB_USER_SYSCALL_H 1
+#ifndef __LIB_USER_SYSCALL_H
+#define __LIB_USER_SYSCALL_H
 
 #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 */