Subj : dynamic allocation, deallocation but not heap fragmentation!
To   : comp.programming.threads
From : jimjim
Date : Fri May 13 2005 07:50 pm

Hello,

I am developing a multithreaded web server. I am using pthreads. The 
pthread_create( ) takes "pthread_t *thread" & "void *arg" as two of the 
arguments.

For "void *arg" I intend to pass the user-defined structure struct  info 
{int clisockfd; struct sockaddr_in cliaddr }. In the main thread, after 
accept( ) returns as a client has connected, I am populating the struct info 
with the int clisockfd, which is the connecting client's file descriptor 
returned by accept( ), and the "struct sockaddr_in cliaddr", which as you 
guessed it is the struct passed to accept( ) and contains the client's IP 
address, port etc.

My problem is that I cant really think of an effective way  that I can 
create "struct  info" dynamically, pass them to created threads and 
deallocate the memory when the threads terminate without perhaps fragmenting 
the heap after some thousands of hits. Moreover, how is it possible to 
create and delete dynamically the "pthread_t" ?

Any pointers are very much wellcome. Thank you in advance.

Regards,
jimjim

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