cuiwm’s gists

cuiwm / Makefile

Created March 1, 2017 02:52 — forked from kwk/Makefile

Compiling with Address Sanitizer (ASAN) with CLANG and with GCC-4.8

	.PHONY: using-gcc using-gcc-static using-clang

	using-gcc:
	g++-4.8 -o main-gcc -lasan -O -g -fsanitize=address -fno-omit-frame-pointer main.cpp && \
	ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./main-gcc

	using-gcc-static:
	g++-4.8 -o main-gcc-static -static-libstdc++ -static-libasan -O -g -fsanitize=address -fno-omit-frame-pointer main.cpp && \
	ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./main-gcc-static

cuiwm / tcp_status.sh

Created May 3, 2017 10:11

veiw all tcp connection's status

netstat -n |awk '/^tcp/{++s[$NF]} END {for (i in s) print i, s[i]}'

cuiwm / watchdog.sh

Created May 13, 2017 09:11

watchdog.sh

	#!/bin/sh

	while [ true ] ; do

	CNT=`ps -ef\|grep "gclient.py sync" \|grep -v grep \|wc -l`

	echo "gclient:" $CNT

	if [[ $CNT -lt 1 ]] ; then
	echo "gclient exit"

cuiwm / redisbackup.lua

Created May 16, 2017 02:31 — forked from cloudwu/redisbackup.lua

cuiwm / check_peer_close.c

Created June 5, 2017 04:31

	//check whether the peer has close the socket connection
	//netstat -antp check the rev message queue
	struct pollfd pfd[1];
	pfd[0].fd = socket_fd;
	pfd[0].events = POLLRDHUP;
	int ret = poll(pfd, 1, 0);
	if (ret > 0) {
	LG_DBG("poll detect RDHUP ret:%d", ret);
	}

cuiwm / .ssh_config_for_git

Created June 6, 2017 08:27

使用于github或者是局域网中git服务器

	~$ cd ~/.ssh/
	~$ touch config
	在.ssh目录下创建一个config文件，输入如下内容：
	Host github.com
	User [email protected] （你注册github时的邮箱，这里使用注册的用户名也行）
	Hostname ssh.github.com
	PreferredAuthentications publickey
	IdentityFile ~/.ssh/id_rsa
	Port 443

cuiwm / calc_macro_args_count.h

Created June 7, 2017 04:32

如何计算macro宏参数的个数

	from msgpack-c

	# /* MSGPACK_PP_VARIADIC_SIZE */ 20 #
	21 # if MSGPACK_PP_VARIADICS
	22 # if MSGPACK_PP_VARIADICS_MSVC 23 # define MSGPACK_PP_VARIADIC_SIZE(...) MSGPACK_PP_CAT(MSGPACK_PP_VARIADIC_SIZE_I(__VA_ARGS__, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1,),)
	24 # else
	25 # define MSGPACK_PP_VARIADIC_SIZE(...) MSGPACK_PP_VARIADIC_SIZE_I(__VA_ARGS__, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1,)
	26 # endif
	27 # define MSGPACK_PP_VARIADIC_SIZE_I(e0, e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11, e12, e13, e14, e15, e16, e17, e18, e19, e20, e21, e22, e23, e24, e

cuiwm / print_string_iostream.cpp

Created June 7, 2017 07:35

print string with iostream cout

	void print(std::string const& buf) {
	\| 63 for (std::string::const_iterator it = buf.begin(), end = buf.end();
	\| 64 it != end;
	- 65 ++it) {
	2 66 std::cout
	2 67 << std::setw(2)
	2 68 << std::hex
	2 69 << std::setfill('0')
	2 70 << (static_cast<int>(*it) & 0xff)
	2 71 << ' ';

cuiwm / choe_gdb_command.txt

Last active June 8, 2017 03:31

gdb useful command

	from :https://blogs.oracle.com/ksplice/8-gdb-tricks-you-should-know
	break WHERE if COND
	(gdb) break context_switch if next == init_task
	(gdb) command 1
	Type commands for when breakpoint 1 is hit, one per line.
	End with a line saying just "end".
	>print addr
	>print len
	>print prot
	>end

cuiwm / .gdbinit

Created June 8, 2017 08:30

gdb .gdbinit from https://blog.0x972.info/files/blog.0x972.info/.gdbinit

	# no 'window' size, we can scroll
	set height 0
	set width 0

	# allow pending breakpoints, we know what we're doing:
	# > Function "foobar" not defined. Breakpoint 9 (foobar) pending.
	# means that there is no "foobar" currently loaded, but maybe
	# you know it will appear later
	set breakpoint pending on

cuiwm cuiwm