06-08-2002
These are two types IPC facilities. IPC (Inter Process Communication) allows two or more processes to talk with one another. They both require space in kernel tables if they are to be successfully allocated. That's where the SysAdmin comes in. He or she must ensure that there is room for all the IPC's that the system needs.
One example is a relational database management system such as Oracle or Sybase. A RDBMS might have one server program that actually talks to the disk drives. And it would have multiple client programs that need to use the database. The programs communicate via IPC's. And when you install Oracle or Sybase, one of the steps is to review the kernel IPC parameters. They usually will need to be increased.
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Hi,
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Hi
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LEARN ABOUT REDHAT
socketcall
IPC(2) Linux Programmer's Manual IPC(2)
NAME
socketcall - socket system calls
SYNOPSIS
int socketcall(int call, unsigned long *args);
DESCRIPTION
socketcall is a common kernel entry point for the socket system calls. call determines which socket function to invoke. args points to a
block containing the actual arguments, which are passed through to the appropriate call.
User programs should call the appropriate functions by their usual names. Only standard library implementors and kernel hackers need to
know about socketcall.
CONFORMING TO
This call is specific to Linux, and should not be used in programs intended to be portable.
SEE ALSO
accept(2), bind(2), connect(2), getpeername(2), getsockname(2), getsockopt(2), listen(2), recv(2), recvfrom(2), send(2), sendto(2), set-
sockopt(2), shutdown(2), socket(2), socketpair(2)
Linux 1.2.4 1995-04-15 IPC(2)