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How to turn on front flash light programmatically in Android?
...D you can refer Can I change the LED intensity of an Android device? full post. Note that only rooted HTC devices support this feature.
** Issues:**
There are also some problems while turning On/Off flashlight. eg. for the devices not having FLASH_MODE_TORCH or even if it has, then flashlight does...
Conditional Variable vs Semaphore
...synchronized access to shared resources. They can be used for similar purposes.
A condition variable is generally used to avoid busy waiting (looping repeatedly while checking a condition) while waiting for a resource to become available. For instance, if you have a thread (or multiple threads)...
How large should my recv buffer be when calling recv in the socket library
...lable to read than your buffer has room for, then they'll be queued by the OS and available for your next call to recv.
SOCK_DGRAM: The excess bytes are discarded.
How can I know if I have received the entire message?
SOCK_STREAM: You need to build some way of determining the end-of-message into...
Inline SVG in CSS
Is it possible to use an inline SVG definition in CSS?
9 Answers
9
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...释器居然不到200k，这是多么地变态啊（/bin/sh都要1M，MacOS平台），而且能和C语言非常好的互动。我很好奇得浏览了一下Lua解释器的源码，这可能是我看过最干净的C的源码了。我不想写一篇大而全的语言手册，一方面是因为已经...
Why is volatile needed in C?
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volatile in C actually came into existence for the purpose of not caching the values of the variable automatically. It will tell the compiler not to cache the value of this variable. So it will generate code to take the value of the given volatile variable from the main memory ev...
Writing outputs to log file and console
...s, but now my shell is different after execution.
– Josh Usre
Feb 19 '19 at 17:04
@JoshUsre If you want any help or yo...
Installing PDO driver on MySQL Linux server
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@YuriCollector'sEditionRossi Updated the answer for that.
– Jani Hartikainen
Nov 14 '12 at 8:21
1
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How do I parse JSON with Objective-C?
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With the perspective of the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for...
How do I execute a command and get the output of the command within C++ using POSIX?
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#include <cstdio>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <array>
std::string exec(const char* cmd) {
std::array<char, 128> buffer;
std::string result;
std::uniqu...