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Do threads have a distinct heap?

... @crisron It's possible to set up a separate heap for each thread, but if you do that rather than using the default shared heap, then it becomes difficult for e.g. thread A to allocate a buffer, fill it with data, pass it to thread B, and ha...
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What is SaaS, PaaS and IaaS? With examples

...eanstalk, Windows Azure, Heroku, Force.com, Google App Engine, Apache Stratos. While in SaaS (Software as a Service) model you are provided with access to application software often referred to as "on-demand software". You don't have to worry about the installation, setup and running of the applicat...
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12

...memory for the innodb_buffer_pool_size in the my.cfg file you show in the post, but MySQL thinks you are asking for 512M of memory: Initializing buffer pool, size = 512.0M A few lines down, the error message tells you MySQL will not start because it cannot reserve enough (512M) memory for the ...
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How to disable / enable dialog negative positive buttons?

...on the dialog and if the text field is empty I would like to disable the positiveButton . I can get a charListener for the text field but I am not sure how I am going to set the positivebutton to disable or enable from that listener? What is the reference for the positive and negative buttons? ...
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How to import a jar in Eclipse

...rking on a project where you need to commit files to the source control repository, I would recommend adding Jar files to a dedicated library folder within your source control repository and referencing few or all of them as mentioned above. ...
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Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory”

... that do not have this parent page tables etc. copy problem are vfork and posix_spawn. But if you do not feel like rewriting chunks of subprocess.Popen in terms of vfork/posix_spawn, consider using suprocess.Popen only once, at the beginning of your script (when Python's memory footprint is minimal...
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Why is #!/usr/bin/env bash superior to #!/bin/bash?

...ual suggest using #!/bin/bash was wrong and bash functionality would be lost by doing so. 6 Answers ...
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Which, if any, C++ compilers do tail-recursion optimization?

..., 4.7 and 4.8 targeting various platforms) is enabled at levels -O2, -O3, -Os. – FooF Jan 10 '14 at 6:53 ...
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What should I do if two libraries provide a function with the same name generating a conflict?

...o days when static linkage was the default. It colors my thinking.) Apropos the comments: By "export" I mean to make visible to modules linking to the library---equivalent to the extern keyword at file scope. How this is controlled is OS and linker dependent. And it is something I always have to l...
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What is a semaphore?

...hared resources - you can use them that way, but it may cause hard to diagnose bugs. While mutexes and semaphores have some similarities in their implementation, they should always be used differently. The most common (but nonetheless incorrect) answer to the question posed at the top is that mutex...