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Unread 05-04-2010, 11:07
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Re: PROGRAMMERS: WIND RIVER C++ vs LABVIEW vs JAVA

Quote:
Originally Posted by wireties View Post
Why would one language be better in a multi-tasking environment than another? The VxWorks kernel and its native API are in C. Some languages (like Ada) have multi-tasking elements built into the language. I can see how they are more convenient. But you can't hide or abstract things w/o it being slower and/or less capable. Even the compiled versions of LabView must access the VxWorks API and the system call interface to interact with the OS. In any language some simple calls setup the tasks. The kernel does the multi-tasking for you w/o any further work by the application code (given a good design).
One question I've always had is this: why does this argument end at C? Isn't the entire concept of a kernel a layer of abstraction in itself? Wouldn't it technically be faster to write the machine code directly rather than call POSIX API functions?

Everyone talks about C like it is the end-all-be-all of speed and efficiency, which confuses me because C is not the lowest level and seems like a rather arbitrary choice. Forgive me if I'm totally wrong; I'm no expert at the low-level stuff.
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