Scroll to navigation

MODBUS_TCP_PI_ACCEPT(3) libmodbus Manual MODBUS_TCP_PI_ACCEPT(3)

NAME

modbus_tcp_pi_accept - accept a new connection on a TCP PI Modbus socket (IPv6)

SYNOPSIS

int modbus_tcp_pi_accept(modbus_t *ctx, int *'s);

DESCRIPTION

The modbus_tcp_pi_accept() function shall extract the first connection on the queue of pending connections, create a new socket and store it in libmodbus context given in argument. If available, accept4() with SOCK_CLOEXEC will be called instead of accept().

RETURN VALUE

The function shall return a new socket if successful. Otherwise it shall return -1 and set errno.

EXAMPLE

For detailed example, see unit-test-server.c source file in tests directory. 

...
ctx = modbus_new_tcp_pi("::0", 502);
s = modbus_tcp_pi_listen(ctx, 1);
modbus_tcp_pi_accept(ctx, &s);
...
close(s)
modbus_free(ctx);

SEE ALSO

modbus_tcp_pi_accept(3) modbus_tcp_listen(3) modbus_tcp_pi_listen(3)

AUTHORS

The libmodbus documentation was written by Stéphane Raimbault <stephane.raimbault@gmail.com>
12/19/2018 libmodbus v3.1.4