X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flib%2Fsyscall-nr.h;h=e1fc9e14b1a7e8d6f79aa9df749c42062d78279d;hb=3f9f9abc72ba696d4ef1ddb65cb4bac9056cb00f;hp=72e06f41dd3755aa2decd6126f5b7b6085c0444b;hpb=3e7b5dd522a946949cd72929300d56cf2c439bea;p=pintos-anon

diff --git a/src/lib/syscall-nr.h b/src/lib/syscall-nr.h
index 72e06f4..e1fc9e1 100644
--- a/src/lib/syscall-nr.h
+++ b/src/lib/syscall-nr.h
@@ -2,25 +2,31 @@
 #define __LIB_SYSCALL_NR_H
 
 /* System call numbers. */
-#define SYS_halt 0              /* Halts the operating system. */
-#define SYS_exit 1              /* Terminates this process. */
-#define SYS_exec 2              /* Start another process. */
-#define SYS_join 3              /* Waits for a child process to die. */
-#define SYS_create 4            /* Creates a file. */
-#define SYS_remove 5            /* Deletes a file. */
-#define SYS_open 6              /* Opens a file. */
-#define SYS_filesize 7          /* Obtains a file's size. */
-#define SYS_read 8              /* Reads from a file. */
-#define SYS_write 9             /* Writes to a file. */
-#define SYS_close 10            /* Closes a file. */
-#define SYS_mmap 12             /* Maps a file into memory. */
-#define SYS_munmap 13           /* Removes a memory mapping. */
-#define SYS_chdir 14            /* Changes the current directory. */
-#define SYS_mkdir 15            /* Create a directory. */
-#define SYS_lsdir 16            /* Lists the current directory to stdout. */
+enum 
+  {
+    /* Projects 2 and later. */
+    SYS_halt,                   /* Halts the operating system. */
+    SYS_exit,                   /* Terminates this process. */
+    SYS_exec,                   /* Start another process. */
+    SYS_wait,                   /* Waits for a child process to die. */
+    SYS_create,                 /* Creates a file. */
+    SYS_remove,                 /* Deletes a file. */
+    SYS_open,                   /* Opens a file. */
+    SYS_filesize,               /* Obtains a file's size. */
+    SYS_read,                   /* Reads from a file. */
+    SYS_write,                  /* Writes to a file. */
+    SYS_seek,                   /* Change position in a file. */
+    SYS_tell,                   /* Report current position in a file. */
+    SYS_close,                  /* Closes a file. */
 
-/* Predefined file handles. */
-#define STDIN_FILENO 0
-#define STDOUT_FILENO 1
+    /* Project 3 and optionally project 4. */
+    SYS_mmap,                   /* Maps a file into memory. */
+    SYS_munmap,                 /* Removes a memory mapping. */
+
+    /* Project 4 only. */
+    SYS_chdir,                  /* Changes the current directory. */
+    SYS_mkdir,                  /* Create a directory. */
+    SYS_lsdir                   /* Lists the current directory to stdout. */
+  };
 
 #endif /* lib/syscall-nr.h */