10 More Discussions You Might Find Interesting
I am new to this forum and I would like to ask for advice about low level POSIX programming.
I have to implement a POSIX compliant C shared library.
A file will have some variables and the shared library will have some functions which need those variables.
There is one special... (5 Replies)
Discussion started by: iamjag
i am making a tcp chat server using c in linux. i have used socket programming to connect the server and the client.
can anyone please let me know how i can use forking for multiple clients??
thank you (1 Reply)
Discussion started by: sweetbella
Hi gurus, I would like to fork more children and then write their return values: so far I tried:
int rv=0, i;
... (5 Replies)
Discussion started by: wakatana
hi, i want to write a code for forking 3 4 child. n wants that every child process one of the account from global account list. i wrote a program for that, but problem is every child is processing every account in list. what can me done to avoid it.
attaching code with it
#include <stdio.h>... (2 Replies)
Discussion started by: anup13
I am writing a shared library in Linux (but compatible with other UNIXes) and I want to allow multiple instances to share a piece of memory -- 1 byte is enough. What's the "best" way to do this? I want to optimize for speed and portability.
Obviously, I'll have to worry about mutual exclusion. (0 Replies)
Discussion started by: otheus
I need to create a shared library to access an in memory DB. The DB is not huge, but big enough to make it cumbersome to carry around in every single process using the shared library. Luckily, it is pretty static information, so I don't need to worry much about synchronizing the data between... (12 Replies)
Discussion started by: DreamWarrior
this is the problem: i want to swap a linked list between 4 processes (unrelated), is there any way i can do that just by sending a pointer to a structure?
typedef struct node
struct node *next;
or i should send the items ( x,c ) by... (9 Replies)
Discussion started by: elzalem
Today, I wrote a test code for fork/execvp/waitpid. In the parent process, it fork 100 child processes which only execute "date" to print the current datetime. When any child process die, the parent process will receive a SIGCHLD signal. Then, the parent process will re-fork-execvp the child... (7 Replies)
Discussion started by: whererush
Between mmap and shared memory which is the best method of sharing data between multiple applications, interms of speed? (1 Reply)
Discussion started by: nmds
10. UNIX for Advanced & Expert Users
I am running HP-UX B.11.11.
I'm increasing a parameter for a database engine so that it uses more memory to buffer the disk drive (to speed up performance). I have over 5GB of memory not being used.
But when I try to start the DB with the increased buffer parameter I get told.
"Not... (1 Reply)
Discussion started by: cjcamaro