Development

Preparing for Simplified Chinese Project Merge

| Development

Will start commit slush soon.

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Yahoo宣布开放两个UI包的源代码

| Development

本来我对Web开发已经没什么兴趣了，不过这次Yahoo出的还是值得看一看。

第一个是 Yahoo! Design Pattern Library提供了包括拖拽、浏览tab等在内的一系列JS。而第二个，Yahoo! User Interface Library则是一系列AJAX脚本。这些库均采用BSD授权。

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bsd.port.mk: critical issue for RELENG_6

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Today I have submitted a PR which I have marked “critical”. bsd.port.mk does not do the right thing on RELENG_6 after the rcorder change, which will cause all ports installed rc.d scripts stop to function at system startup.

The PR can be accessed here: http://www.freebsd.org/cgi/query-pr.cgi?pr=93536

UPDATE(20060219): It seems that the problem is not related to this. I am still investigating what was happening.

UPDATE(20060220): Doug Barton has kindly provided information about the issue. It was because some nojail and mountcritlocal conflict. The issue can only appear when you are using jail(8).

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关于如何扩展复杂且难懂的C代码的一点经验谈

| Development

有时，我们会希望扩展一些现有的C代码。这些代码可能经历了相当久的运行考验——它们至少目前工作起来没有问题——然而，它们可能存在各种各样的问题，比如：

要扩展这类代码是一件有挑战的事情。

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FreeBSD的uuid处理小问题

| Development

似乎在处理>和<时，和 DCE 不太一样，改天写个test case看看。

Archived: trackbacks

生成UUID from 2006 Penguin, smashing time! on February 4, 2006 11:36 PM

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#include <stdio.h>
#include <uuid.h>
main() {
  uuid_t *uuid;
  char *s;
  uuid = (uuid_t*)malloc(sizeof(uuid_t));
  uuidgen(uuid,1);
  uuid_to_string(uuid,&s,NULL);
  printf("%s\\n",s);
}

一个很简单的生成UUID的例子。… Read More

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FreeBSD 5-STABLE and 6-STABLE frozen for release

| Development

Today we have frozen the RELENG_5 and RELENG_6 branches, for the upcoming 5.5-RELEASE and 6.1-RELEASE. Unfortunately, the www.freebsd.org is not accessable from the mainland China right now.

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FreeBSD 5.5-RELEASE和6.0-RELEASE代码冻结即将开始

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我们将在大约月底的时候开始代码冻结，并准备两个新的RELEASE。我们的主要精力将集中于FreeBSD 6.1，而FreeBSD 5.5则集中于修正严重问题。近期发现的一系列功能和性能上的改进，将合并到这两个分支上。

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用 iPython 做shell

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学习一种语言最快的方法就是逼自己干什么事情的时候都用它——有一个利用了Python来实现的shell——iPython，可以用来代替默认的shell。

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Bug in Python re implementation?

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Python includes a Regular Expression implementation, called re. However, I thought that I have hit a bug.

The following regular expression is apparantly wrong, but Python spend much CPU time to give a mismatch:

_mailcheck = re.compile("^(\w|.){3,25}$")
_mailcheck.match(“foooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo”)

I think the “.” would override anything (including “\w”), but this does not happen…

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开始琢磨Twisted

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最近几天开始琢磨Twisted了。打算用Twisted来做一些东西，不过不知道它的线程是否能使用阻塞I/O……

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