Module Name: src
Committed By: uebayasi
Date: Wed Aug 19 03:23:34 UTC 2015
Modified Files:
src/usr.bin/config: TODO
Log Message:
+ pseudo(dev) attach
To generate a diff of this commit:
cvs rdiff -u -r1.16 -r1.17 src/usr.bin/config/TODO
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/config/TODO
diff -u src/usr.bin/config/TODO:1.16 src/usr.bin/config/TODO:1.17
--- src/usr.bin/config/TODO:1.16 Fri Apr 10 03:51:44 2015
+++ src/usr.bin/config/TODO Wed Aug 19 03:23:34 2015
@@ -285,3 +285,22 @@ o Namespace.
module and its dependencies (selectattr()). In other words, an option is
only safely converted to a module (define), only if it doesn't depend on
anything. (One example is DDB.)
+
+o Convert pseudo(dev) attach functions to take (void) (== kernel ctors).
+
+ The pseudo attach function was originally designed to take `int n' as
+ the number of instances of the pseudo device. Now most of pseudo
+ devices have been converted to be `cloneable', meaning that their
+ instances are dynamically allocated at run-time, because guessing how
+ much instances are needed for users at compile time is almost impossible.
+ Restricting such a pure software resource at compile time is senseless,
+ considering that the rest of the world is dynamic.
+
+ If pseudo attach functions once become (void), config(1) no longer
+ has to generate iteration to call those functions, by making them part
+ of kernel constructors, that are a list of (void) functions.
+
+ Some pseudo devices may have dependency/ordering problems, because
+ pseudo attach functions have no choice when to be called. This could
+ be solved by converting to kctors, where functions are called in order
+ by dependency.
