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Add EXIT_FAILURE, EXIT_SUCCESS to syscall.h,
[pintos-anon]
/
src
/
lib
/
user
/
syscall.h
diff --git
a/src/lib/user/syscall.h
b/src/lib/user/syscall.h
index d9487d3df7b73ad67872be69dae90697990095f3..8a9e0c013e91a74bb87b318b7f2f3f094c341bd6 100644
(file)
--- a/
src/lib/user/syscall.h
+++ b/
src/lib/user/syscall.h
@@
-4,14
+4,22
@@
#include <stdbool.h>
#include <debug.h>
#include <stdbool.h>
#include <debug.h>
+/* Process identifier. */
typedef int pid_t;
#define PID_ERROR ((pid_t) -1)
typedef int pid_t;
#define PID_ERROR ((pid_t) -1)
+/* Map region identifier. */
typedef int mapid_t;
#define MAP_FAILED ((mapid_t) -1)
typedef int mapid_t;
#define MAP_FAILED ((mapid_t) -1)
+/* Maximum characters in a filename written by readdir(). */
#define READDIR_MAX_LEN 14
#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 *file);
void halt (void) NO_RETURN;
void exit (int status) NO_RETURN;
pid_t exec (const char *file);
@@
-25,8
+33,12
@@
int write (int fd, const void *buffer, unsigned length);
void seek (int fd, unsigned position);
unsigned tell (int fd);
void close (int fd);
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);
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 chdir (const char *dir);
bool mkdir (const char *dir);
bool readdir (int fd, char name[READDIR_MAX_LEN + 1]);