Questions about sys/queue.h : Only on LINUX? Stability? Limits? Atomicity?

esgol · 07-30-2012, 08:34 AM

I was looking for list code for my SERVER aplication and lernt about sys/queue.h

As I far i understood. Its a LINUX library offering a ready and standard Queue for programmers so they dont have to create their owns and worry for any self
I was looking for list code for my SERVER/CLIENTS aplication and lernt about sys/queue.h

Now asking more about sys/queue.h:

Its available only to Linux or to windows also?
Its considered the most trustworthy and flawless list someone can use as it standarized from the OS?
Does it has limits in elements or its dynamical?
Does it ensures internally the atomicity of operations if its accesed concurently by many threads in multithreading programming, or u still need mutexes lock/lock-free programming?

Lastly this example does not compile
line 19 says "invalid conversion form void* to foo*"

http://ideone.com/T1EID

alinas · 07-31-2012, 04:05 PM

I can't answer your question, but thought it isn't really a 'newbie' one. I reckon you might get a better response if you move this question into Software or Kernel or Networking forum...

Nylex · 07-31-2012, 04:11 PM

Quote:

Originally Posted by esgol

Lastly this example does not compile
line 19 says "invalid conversion form void* to foo*"

http://ideone.com/T1EID

Presumably you mean line 18. malloc() returns a void pointer, which you're trying to assign to a pointer to a foo. So, you need to cast what you get from malloc() to the appropriate type.

prateek.shetty · 08-02-2012, 08:41 AM

Hi Esgol,

Even I have similar questions about sys/queue.h

Just want to know if it works on Windows or if there is any alternate for it on windows. If you get to know the answers please let me know.

Nylex · 08-05-2012, 06:58 AM

If by "works on Windows", you want to ask "is it part of the standard C library?", then no. I'm not sure what standard libraries people use for containers in C (if they choose not to write their own), though.