libdill: Structured Concurrency for C

NAME

chmake - creates a channel

#include <libdill.h>

int chmake(
    int chv[2]);

Creates a bidirectional channel. In case of success handles to the both sides of the channel will be returned in chv parameter.

A channel is a synchronization primitive, not a container. It doesn't store any items.

chv: Out parameter. Two handles to the opposite ends of the channel.

In case of success the function returns 0. In case of error it returns -1 and sets errno to one of the values below.

EMFILE: The maximum number of file descriptors in the process are already open.
ENFILE: The maximum number of file descriptors in the system are already open.
ENOMEM: Not enough memory.

int ch[2];
int rc = chmake(ch);
if(rc == -1) {
    perror("Cannot create channel");
    exit(1);
}