Changeset 670 for trunk/kernel/syscalls/shared_include/shared_stat.h

Timestamp:

Nov 19, 2020, 11:45:52 PM (2 years ago)

Author:

alain

Message:

1) Introduce up to 4 command lines arguments in the KSH "load" command.
These arguments are transfered to the user process through the
argc/argv mechanism, using the user space "args" vseg.

2) Introduce the named and anonymous "pipes", for inter-process communication
through the pipe() and mkfifo() syscalls.

3) Introduce the "chat" application to validate the two above mechanisms.

4) Improve printk() and assert() fonctions in printk.c.

File:

• trunk/kernel/syscalls/shared_include/shared_stat.h (modified) (2 diffs)

trunk/kernel/syscalls/shared_include/shared_stat.h

@@ -28 +28 @@
  * This structure define the informations associated to a file descriptor,
  * returned to user space by the stat() syscall.
+ *
+ * The st_mode field contains informations on both access rights and file types.
+ * - access rights (defined by the inode <rights> field) are stored in st_mode[15:0]
+ * - file types (defined by the inode <type> field) are stored in st_mode[19:16]
  *****************************************************************************************/
 
@@ -45 +49 @@
 
 /******************************************************************************************
- * The st_mode field contains informations on both access rights and file types.
- * - access rights (defined by the inode <rights> field) are stored in st_mode[15:0]
- * - file types (defined by the inode <type> field) are stored in st_mode[19:16]
  * The following macros can be used to extract file type information.
  *