9 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'll try to keep this short, but basically I need to figure out a way to load data in shared memory (this file will be called load.c) I will later access the data with a print.c program.
The "data" is in the form of a student database that looks like this
560... (7 Replies)
Discussion started by: Mercfh
Hey, Im using a shared memory segment to share a WINDOW structure among 2 processes. Basically I'm building a multi-player snake game in which multiple prrocesses access the window.
The 'parent' process initializes the shared memory segment and puts the window in it. I can access and perform... (1 Reply)
Discussion started by: dgre0018
I wonder if I can write my userdefined data structures(ex: a list) to a shared memory segment?
I know, the shm functions get (void*) parameter so I should be able to read and write a list into the shared memory.
may someone inform and clarify me about that, please? (1 Reply)
Discussion started by: xyzt
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
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
9. 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