Sadly there is no direct analogue to RPATH. There are a number of alternative possibilities, each of them most likely undesirable to you in its own special way. Given that you need a different exe for each build flavor anyway to avoid runtime library clashes, as you might guess the easiest thing to do is … Read more
A few ways: RAM Drive Apache APR OpenHFT Chronicle Core Details here and here with some performance measurements.
One Word: Boost.InterProcess. If it really needs to be fast, shared memory is the way to go. You nearly have zero overhead as the operation system does the usual mapping between virtual and physical addresses and no copy is required for the data. You just have to lookout for concurrency issues. For actually sending commands … Read more
Both T1 and T2 can refer to a class containing this variable. You can then make this variable volatile, and this means that Changes to that variable are immediately visible in both threads. See this article for more info. Volatile variables share the visibility features of synchronized but none of the atomicity features. This means … Read more
As you’re on a shared Linux box, you’ll have to ask the system administrator to do the following, probably. Create a startup script in /etc/init.d/solr. Copy this code, my Solr startup script, into that file: #!/bin/sh # Prerequisites: # 1. Solr needs to be installed at /usr/local/solr/example # 2. daemon needs to be installed # … Read more
Try this to make an existing repository in repodir work for users in group foo: chgrp -R foo repodir # set the group chmod -R g+rw repodir # allow the group to read/write chmod g+s `find repodir -type d` # new files get group id of directory git init –bare –shared=all repodir # sets some … Read more
It’s easy to share named POSIX semaphores Choose a name for your semaphore #define SNAME “/mysem” Use sem_open with O_CREAT in the process that creates them sem_t *sem = sem_open(SNAME, O_CREAT, 0644, 3); /* Initial value is 3. */ Open semaphores in the other processes sem_t *sem = sem_open(SEM_NAME, 0); /* Open a preexisting semaphore. … Read more
After some (a lot of) digging throughout the web, I found the answer. The access Group that you use when constructing your KeychainItemWrapper class must ALSO be specified in each of your application’s Entitlements.plist file in the “keychain-access-groups” section. It seems almost obvious now that I see “keychain-access-groups“. However, I had no idea to even … Read more
Yes, it’s moderately easy. Just use two “add_library” commands: add_library(MyLib SHARED source1.c source2.c) add_library(MyLibStatic STATIC source1.c source2.c) Even if you have many source files, you can place the list of sources in a Cmake variable, so it’s still easy to do. On Windows you should probably give each library a different name, since there is … Read more
Okay! using this code in Application 1 ( with package name is “com.sharedpref1” ) to store data with Shared Preferences. SharedPreferences prefs = getSharedPreferences(“demopref”, Context.MODE_WORLD_READABLE); SharedPreferences.Editor editor = prefs.edit(); editor.putString(“demostring”, strShareValue); editor.commit(); And using this code in Application 2 to get data from Shared Preferences in Application 1. We can get it because we use … Read more