Changeset 611 for trunk/libs

Timestamp:

Jan 9, 2019, 3:02:51 PM (5 years ago)

Author:

alain

Message:

Introduce sigificant modifs in VFS to support the <ls> command,
and the . and .. directories entries.

Location:

trunk/libs

Files:

• libalmosmkh/almosmkh.c (modified) (1 diff)
• libalmosmkh/almosmkh.h (modified) (1 diff)
• mini-libc/dirent.h (modified) (1 diff)

trunk/libs/libalmosmkh/almosmkh.c

@@ -276 +276 @@
     return hal_user_syscall( SYS_DISPLAY,
                              DISPLAY_DQDT, 0, 0, 0 );
+} 
+
+///////////////////////////////////////
+int display_mapper( char        * path,
+                    unsigned int  page_id,
+                    unsigned int  nbytes)
+{
+    return hal_user_syscall( SYS_DISPLAY,
+                             DISPLAY_MAPPER,
+                             (reg_t)path,
+                             (reg_t)page_id,
+                             (reg_t)nbytes );
 } 
 

trunk/libs/libalmosmkh/almosmkh.h

@@ -213 +213 @@
 int display_dqdt( void );
 
+/*************************************************************************************** 
+ * This debug syscall displays on the kernel terminal TXT0 the content of a given
+ * page of a given VFS mapper.
+ * It can be called by any thread running in any cluster.
+ ***************************************************************************************
+ * @ path      : pathname identifying the file/directory in VFS.
+ * @ page_id   : page index in file.
+ * @ nbytes    : number of bytes to display.
+ * @ return 0 if success / return -1 if file or page not found.
+ **************************************************************************************/
+int display_mapper( char        * path,
+                    unsigned int  page_id,
+                    unsigned int  nbytes);
+
 /***************************************************************************************** 
 * This debug syscall is used to activate / desactivate the context switches trace

trunk/libs/mini-libc/dirent.h

@@ -25 +25 @@
 #define _DIRENT_H_
 
+#include <shared_dirent.h>
+
 /***************************************************************************************** 
- * This file defines the user level, directory entry related library.
+ * This file defines the user level, directory entries related library.
  * All these functions make a system call to access the kernel VFS.
- * The user/kernel shared structures and mnemonics are defined in 
- * the <syscalls/shared_include/shared_dirent.h> file.
  ****************************************************************************************/
-
-#include <shared_dirent.h>
 
 /*****************************************************************************************