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Python Process Pool non-daemonic?
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The multiprocessing.pool.Pool class creates the worker processes in its __init__ method, makes them daemonic and starts them, and it is not possible to re-set their daemon attribute to False before they are started (and afterwards it's not allowed anymore). But you can create your own sub-class o...
What is the canonical way to determine commandline vs. http execution of a PHP script?
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Use the php_sapi_name() function.
if (php_sapi_name() == "cli") {
// In cli-mode
} else {
// Not in cli-mode
}
Here are some relevant notes from the docs:
php_sapi_name — Returns the type of interface between web server...
'Java' is not recognized as an internal or external command
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You need to configure your environment variables, JAVA_HOME and PATH.
JAVA_HOME must contain the path to java, and you should add %JAVA_HOME%\bin to PATH
Alternatively, you can simply add to your PATH the whole path to the bin folder, without the JAVA_HOME variable, however, t...
How do ACID and database transactions work?
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ACID is a set of properties that you would like to apply when modifying a database.
Atomicity
Consistency
Isolation
Durability
A transaction is a set of related changes which is used to achieve some of the ACID properties. Transactions are tools to achieve the ACID proper...
Real world use cases of bitwise operators [closed]
...r to make some piece of hardware do what you want it to:
volatile uint32_t *register = (volatile uint32_t *)0x87000000;
uint32_t value;
uint32_t set_bit = 0x00010000;
uint32_t clear_bit = 0x00001000;
value = *register; // get current value from the registe...
Maven Install on Mac OS X
... 2011-02-28 12:31:09-0500)
Maven home: /usr/share/maven
Java version: 1.6.0_29, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x", version: "10.7.2", arch: "x86_64", family: "mac"
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Meaning of 'const' last in a function declaration of a class?
...e that is often broken and easily broken.
foobar& fbNonConst = const_cast<foobar&>(fb1);
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Using logging in multiple modules
...ave a logger defined like this:
import logging
logger = logging.getLogger(__name__)
near the top of the module, and then in other code in the module do e.g.
logger.debug('My message with %s', 'variable data')
If you need to subdivide logging activity inside a module, use e.g.
loggerA = loggin...
Why shouldn't I use mysql_* functions in PHP?
What are the technical reasons for why one shouldn't use mysql_* functions? (e.g. mysql_query() , mysql_connect() or mysql_real_escape_string() )?
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error LNK2019: 无法解析的外部符号 __imp__PlaySoundW@12，该符号在函数 \...
error LNK2019: 无法解析的外部符号 __imp__PlaySoundW@12，该符号在函数 "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z) 中被引用#include <mmsystem.h>#pragma comment(lib, "WINMM.LIB")
#include <mmsystem.h>
#pragma comm...