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What is the Swift equivalent to Objective-C's “@synchronized”?
...ct inside of swift for this yet.
I did make up this small helper function based on some of the code I've seen from Matt Bridges and others.
func synced(_ lock: Any, closure: () -> ()) {
objc_sync_enter(lock)
closure()
objc_sync_exit(lock)
}
Usage is pretty straight forward
synced...
Unresolved external symbol in object files
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I had an error where my project was compiled as x64 project. and I've used a Library that was compiled as x86.
I've recompiled the library as x64 and it solved it.
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Is volatile expensive?
...zed block. Entering a synchronized block requires an atomic compareAndSet based write to take out the lock and a volatile write to release it. If the lock is contented then control has to pass from user space to kernel space to arbitrate the lock (this is the expensive bit). Accessing a volatile ...
Regular expression to match URLs in Java
...EDIT: Code of Patterns from https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java :
/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in co...
How to detect the OS from a Bash script?
...lls (such as Bourne shell).
uname
Another method is to detect platform based on uname command.
See the following script (ready to include in .bashrc):
# Detect the platform (similar to $OSTYPE)
OS="`uname`"
case $OS in
'Linux')
OS='Linux'
alias ls='ls --color=auto'
;;
'FreeBSD'...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...t access '/dev/serial/': No such file or directory Slackware 14.2 current x64
– jpka
Sep 11 '18 at 15:22
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Redeploy alternatives to JRebel [closed]
...s recent versions of Java 7 and 8. The maintainer provides binaries for 32/64 bits VMs on Windows/Linux. Starting with Java 11 the project moved to a new GitHub repository and now also provides binaries for OS X.
DCEVM is packaged for Debian and Ubuntu, it's conveniently integrated with OpenJDK and...
Function to convert column number to letter?
... Long
If iCol <= 26 Then
ColumnNumberToLetter = Chr(iCol + 64)
Else
lRemainder = iCol Mod 26
lAlpha = Int(iCol / 26)
If lRemainder = 0 Then
lRemainder = 26
lAlpha = lAlpha - 1
End If
ColumnNumberToLetter = ColumnNumb...
How to pass parameters to the DbContext.Database.ExecuteSqlCommand method?
...
jessegavinjessegavin
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How to diff one file to an arbitrary version in Git?
...u can refer to commit hash number, for example if the hash number is x110bd64, you can do something like this to see the difference:
git diff x110bd64 pom.xml
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