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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...
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)...
Inline SVG in CSS
Is it possible to use an inline SVG definition in CSS?
9 Answers
9
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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
...
@YuriCollector'sEditionRossi Updated the answer for that.
– Jani Hartikainen
Nov 14 '12 at 8:21
1
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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...
How do I execute a command and get the output of the command within C++ using POSIX?
...
#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...
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...
What's the difference between disabled=“disabled” and readonly=“readonly” for HTML form input fields
...ide or provide default styling for disabled form elements. (Gray out or emboss text) Internet Explorer
5.5 is particularly nasty about this.
Disabled form elements do not receive focus.
Disabled form elements are skipped in tabbing navigation.
The Read Only Attribute
Not all fo...
Android encryption / decryption using AES [closed]
... return decrypted;
}
And invoke them like this:
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.PNG, 100, baos); // bm is the bitmap object
byte[] b = baos.toByteArray();
byte[] keyStart = "this is a key".getBytes();
KeyGenerator kgen = KeyGener...