Changeset 614 for trunk/kernel/libk/xhtab.c

Timestamp:

Jan 15, 2019, 1:59:32 PM (5 years ago)

Author:

alain

Message:

1) introduce a dev_ioc_sync_write() function in IOC API,

to improve the DEVFS synchronous update.

2) fix a big bug in both the user_dir_create() and user_dir_destroy()

functions: add an extended pointer on the reference client process
in the function's arguments.

File:

• trunk/kernel/libk/xhtab.c (modified) (3 diffs)

trunk/kernel/libk/xhtab.c

@@ -42 +42 @@
 // XHTAB_DENTRY_TYPE
 // This functions compute the hash index from the key, that is the directory entry name.
+// In this implementation, the index value is simply the ASCII code of the first
+// character, to provide an approximate lexicographic order. 
 ///////////////////////////////////////////////////////////////////////////////////////////
 // @ key      : local pointer on name.
@@ -49 +51 @@
 {
         char     * name  = key;
-        uint32_t   index = 0;
+
+        return (name[0] % XHASHTAB_SIZE);
+/*
+    uint32_t   index = 0;
         while( *name )
     {
@@ -55 +60 @@
     }
         return index % XHASHTAB_SIZE;
+*/
+
 }