X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flib%2Fuser%2Fsyscall.h;h=d03eae163ef371956b911277f75575637da18053;hb=c12a66d060c18b8fddedff8905d09d7ccd50788c;hp=c07f3ea6b7fa3bf93fc3edfaa3bdc2e54276b720;hpb=d46fd132092304422193b717d9a60641604cc1b5;p=pintos-anon

diff --git a/src/lib/user/syscall.h b/src/lib/user/syscall.h
index c07f3ea..d03eae1 100644
--- a/src/lib/user/syscall.h
+++ b/src/lib/user/syscall.h
@@ -5,12 +5,16 @@
 #include <debug.h>
 
 typedef int pid_t;
+#define PID_ERROR ((pid_t) -1)
+
+typedef int mapid_t;
+#define MAP_FAILED ((mapid_t) -1)
 
 void halt (void) NO_RETURN;
 void exit (int status) NO_RETURN;
 pid_t exec (const char *file);
-int join (pid_t);
-bool create (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);
@@ -19,8 +23,8 @@ int write (int fd, const void *buffer, unsigned length);
 void seek (int fd, unsigned position);
 unsigned tell (int fd);
 void close (int fd);
-bool mmap (int fd, void *addr, unsigned length);
-bool munmap (void *addr, unsigned length);
+mapid_t mmap (int fd, void *addr);
+void munmap (mapid_t);
 bool chdir (const char *dir);
 bool mkdir (const char *dir);
 void lsdir (void);