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/*
Copyright (c) 2013, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. 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.
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 HOLDER 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.
*/
#include "mmss.hpp"
#include "util.hpp"
#include <cassert>
extern "C" {
gmrf_addr_t gmrf_iface_get_addr(gmrf_t *gmrf, gmrf_iface_t *iface) {
return iface->address;
}
const char* gmrf_iface_get_name(gmrf_t *gmrf, gmrf_iface_t *iface) {
return iface->name.c_str();
}
size_t gmrf_iface_get_mtu(gmrf_t *gmrf, gmrf_iface_t *iface) {
auto net = iface->net.lock();
if (!net)
return 0;
return net->mtu;
}
bool gmrf_iface_send(gmrf_t *gmrf, gmrf_iface_t *iface, const void *data, size_t len, const gmrf_addr_t *dest) {
auto src_iface = iface->iface.lock();
assert(src_iface);
auto net = src_iface->net.lock();
if (!net)
return false;
for (auto dest_iface : net->interfaces) {
if (gmrf_addr_equal(&dest_iface->address, dest)) {
MMSS::enqueue(gmrf->mmss, src_iface, dest_iface, data, len);
break;
}
}
return true;
}
bool gmrf_iface_send_bc(gmrf_t *gmrf, gmrf_iface_t *iface, const void *data, size_t len) {
auto src_iface = iface->iface.lock();
assert(src_iface);
auto net = src_iface->net.lock();
if (!net)
return false;
for (auto dest_iface : net->interfaces) {
if (dest_iface != src_iface)
MMSS::enqueue(gmrf->mmss, src_iface, dest_iface, data, len);
}
return true;
}
void gmrf_schedule(gmrf_t *gmrf, gmrf_scheduled_func f, void *arg, unsigned delay) {
auto node = gmrf->node.lock();
assert(node);
std::shared_ptr<MMSS::scheduled_t> scheduled = std::make_shared<MMSS::scheduled_t>();
scheduled->node = std::move(node);
scheduled->f = f;
scheduled->arg = arg;
gmrf->mmss->scheduled_queue.put(std::move(scheduled), gmrf->mmss->now+delay);
}
gmrf_time_t gmrf_now(gmrf_t *gmrf) {
return gmrf->mmss->now;
}
void gmrf_random_bytes(gmrf_t *gmrf, void *buffer, size_t len) {
uint8_t *data = reinterpret_cast<uint8_t*>(buffer);
size_t i;
for (i = 0; i < len; i++)
data[i] = rand_r(&gmrf->rand_seed);
}
static inline const char* get_log_prefix(int log_level) {
switch(log_level) {
case LOG_CRIT:
return "Fatal: ";
case LOG_ERR:
return "Error: ";
case LOG_WARNING:
return "Warning: ";
case LOG_NOTICE:
return "Info: ";
case LOG_INFO:
return "Verbose: ";
case LOG_DEBUG:
return "DEBUG: ";
default:
return "";
}
}
void gmrf_logf(gmrf_t *gmrf, int priority, const char *format, ...) {
char buf[1024];
size_t pos = 0;
pos += MMSS::snprintf_safe(buf, sizeof(buf), "%s: %s", gmrf->name.c_str(), get_log_prefix(priority));
va_list ap;
va_start(ap, format);
vsnprintf(buf+pos, sizeof(buf)-pos, format, ap);
va_end(ap);
MMSS::logf(gmrf->mmss, priority, "%s", buf);
}
}
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