#!/usr/bin/perl

################################################################################

# BSD LICENSE

#

# Copyright(c) 2016 Intel Corporation. All rights reserved.

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

#   * Redistributions of source code must retain the above copyright

#     notice, this list of conditions and the following disclaimer.

#   * Redistributions in binary form must reproduce the above copyright

#     notice, this list of conditions and the following disclaimer in

#     the documentation and/or other materials provided with the

#     distribution.

#   * Neither the name of Intel Corporation nor the names of its

#     contributors may be used to endorse or promote products derived

#     from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

################################################################################

use strict;

use warnings;

use pqos;

=begin

Script to test PQoS Perl interface

=cut

my $cfg  = pqos::pqos_config->new();

my $l3ca = pqos::pqos_l3ca->new();

# Setup config

$cfg->{verbose} = 0;

$cfg->{fd_log}  = 1;

# Initialize the library

if (0 != pqos::pqos_init($cfg)) {

	print "Error initializing PQoS library!\n";

	exit 0;

}

print "Hello, World!\n";

print "\t\t\t\tAssociation\tWay Mask\n";

# Get number of cores

my $cpuinfo_p = pqos::get_cpuinfo();

my $cpu_num   = pqos::cpuinfo_p_value($cpuinfo_p)->{num_cores};

# Print L3CA info for each core

for (my $i = 0; $i < $cpu_num; $i++) {

	# Get core association

	(my $result, my $cos) = pqos::pqos_alloc_assoc_get($i);

	if (0 != $result) {

		next;

	}

	# Get socket ID for this core

	($result, my $socket_id) = pqos::pqos_cpu_get_socketid($cpuinfo_p, $i);

	if (0 != $result) {

		next;

	}

	# Get way mask info

	if (0 != pqos::get_l3ca($l3ca, $socket_id, $cos)) {

		next;

	}

	# Print info

	printf("Hello from core %d on socket %d\tCOS %d \t\t0x%x\n",

		$i, $socket_id, $cos, $l3ca->{u}->{ways_mask});

}

# Shutdown the library

pqos::pqos_fini();