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PORe-initialize library variables in C program
 

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  1. PORe-initialize library variables in C program
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    <p>I am trying to write a program where I have to call some functions through a (shared) library (its source is available). The C code for the library has several global variables, and many functions change the values of these global variables. What I have to do in my program requires that each function call that I make gets to work with a fresh set of variables.</p> <p>For example, let this function be a part of the library:</p> <pre><code>int x = 1; int foo() { int a = 0; //do somethings to 'a' //... x++; return a; } </code></pre> <p>Now every time I invoke <code>foo()</code> from my program, the value of <code>x</code> gets update from 1 to 2 then 3 then 4 and so on... I am try to construct a program so that every time <code>foo()</code> is invoked, it sees x = 1.</p> <p>I am sorry to say that my knowledge of how C/linux treat these variable spaces is insufficient, so this question may seem vague. The above is just a small example; in reality, there are so many variables that is practically impossible to reset their values manually.</p> <p>What may be the best way to compile that library and/or use it my program so as to refresh the variables?</p> <p>(On a side note, what I am also trying to do is to parallelize calls to foo(), but because of the shared variables, I cannot do that.)</p> <p>EDIT: When working on some web dev projects, I used to encapsulate some code in webservices and then invoke those services from the main program. Does a similar framework exist in C/Linux? Please note that functions are returning data.</p>
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    1. COyour side note suggest that what you're asking for won't solve your real problem.
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    2. COThanks! Any suggestions? Can we create something like a service and call it from my program?
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