synchronization Questions
1
Solved
This program claims to solve makeWater() synchronization problem. However, I could not understand how. I am new in semaphores. I would appriciate if you can help me to understand this code.
Turbit asked 23/9, 2016 at 15:53
2
Solved
i found this at dos.oracle.com
public static List synchronizedList(List list)
Returns a synchronized (thread-safe) list backed by the specified
list. In order to guarantee serial access, it ...
Tailstock asked 1/8, 2013 at 12:42
2
There is raw variant of each spin lock available in linux kernel, I want to know its usage ? e.g. :
raw_spin_lock(), raw_spin_lock_irqsave(), etc.
Bendwise asked 2/11, 2015 at 17:32
6
Solved
What is the difference between a synchronized method and synchronized block in Java ?
I have been searching the answer on the Net, people seem to be so unsure about this one :-(
My take wou...
Retaliate asked 19/7, 2009 at 13:45
3
Solved
Problem
I'm building a postgres database for a few hundred thousand products. I will set-up an index (Solr or maybe ElasticSearch) to improve query times for complex search queries.
The point now i...
Sinkage asked 8/8, 2013 at 12:35
1
Solved
I have a question about how to make an object guaranteed to be thread-safe by the Java Memory Model.
I have read a lot which say that writing a synchronized scope in a constructor does not make se...
Siamang asked 8/9, 2016 at 14:24
7
Solved
Is the following code set up to correctly synchronize the calls on synchronizedMap?
public class MyClass {
private static Map<String, List<String>> synchronizedMap = Collections.synch...
Teryn asked 19/2, 2009 at 20:44
1
Solved
I am trying to understand how ReentrantLock works in java.
Lets consider a simple example below :
private ReentrantLock lock;
public void foo() {
lock.lock();
try{
...
}finally {
lock.unlock...
Keelung asked 27/8, 2016 at 16:55
5
Solved
The project I am working on would trigger various asynchronous jobs to do some work. As I look into it more these asynchronous jobs are actually being run as separate JVMs (separate java processes)...
Predictory asked 16/5, 2012 at 16:27
1
Solved
I want to get output from two processes and merge them into one file, like:
proc1 >> output &
proc2 >> output &
The problem is that output may be mixed up in the final file.
Fo...
Aerify asked 21/8, 2016 at 6:59
1
I have a couchdb running on a virtual linux machine. This db has cors enabled and setup. I have added an admin user and
password to the db. I also have require_valid_user set to true.
I am trying ...
Onofredo asked 5/8, 2016 at 4:10
6
Solved
I have always thought that synchronizing the run method in a java class which implements Runnable is redundant. I am trying to figure out why people do this:
public class ThreadedClass implements ...
Twentyone asked 5/9, 2011 at 23:47
0
I want to be able to replicate data from MongoDB, with minimal latency, across 2 (later more) servers. One server is located in China (behind the Great Firewall) and the other is located in the USA...
Calathus asked 1/8, 2016 at 8:30
3
Solved
In the code below, main() function is calling request() function which inter call th_request_async() function which mm_th_done_cb().
What will be the best and efficient way to proceed in main only...
Georgeannageorgeanne asked 26/12, 2014 at 4:50
4
What are the possible problems caused by adding elements to unsynchronized ArrayList's object by multiple threads simultaneously?
Tried to run some experiments with a static ArrayList with multipl...
Bryner asked 22/7, 2016 at 13:14
2
Solved
After trying a preview version that gave me odd errors, i just did a fresh install of Android Studio 1.1.0 on Ubuntu Linux.
I also removed the preferences directory to start from scratch.
Now even...
Wretch asked 12/3, 2015 at 21:44
2
Solved
Anytime the beginner asks something like: How to update the GUI from another thread in C#?, the answer is pretty straight:
if (foo.InvokeRequired)
{
foo.BeginInvoke(...)
} else {
...
}
But is ...
Without asked 9/3, 2011 at 12:48
5
Solved
I have 2 databases that have the same structure, one on a local machine and one on the company's server. Every determined amount of time, the data from the local DB should be synchronized to the se...
Remise asked 6/8, 2010 at 16:13
1
When my team and I were on visual studio 2013, after successfully checking in our pending changes, the files that were checked in would be removed from the pending changes window.
Ever since upgr...
Impermanent asked 14/7, 2016 at 15:44
2
Solved
Is there a windows API that would achieve the equivalent of clicking the "Update now" button in the "Date and time properties"/"Internet time" tab (opened by double clicking the clock in the taskba...
Wordless asked 5/5, 2010 at 9:47
2
Solved
I'm currently having problems making my audio and video streams stay synced.
These are the AVCodecContexts I'm using:
For Video:
AVCodec* videoCodec = ffmpeg.avcodec_find_encoder(AVCodecID.AV_CO...
Tower asked 5/7, 2016 at 7:54
2
Solved
I am unable to sync my build.gradle the below error is showing
Gradle sync failed: Could not determine artifacts for
com.android.support:recyclerview-v7:24.0.0: No cached version
available for...
Discriminant asked 8/7, 2016 at 6:35
7
Solved
In order to properly understand the issues and solutions for concurrency in Java, I was going through the official Java tutorial. In one of the pages they defined Intrinsic Locks and Synchronizatio...
Declared asked 5/7, 2016 at 21:57
3
Solved
I have already implemented NSOperationQueue successfully in application.
I have one operation queue which might have 1000 of NSOperations like below.
@interface Operations : NSOperation
@end
@i...
Mcdonnell asked 27/6, 2016 at 11:33
6
I am interested in knowing what would be the best way to implement a thread based queue.
For example:
I have 10 actions which I want to execute with only 4 threads. I would like to create a queue...
Sholom asked 2/7, 2011 at 18:25
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