PySysC-SC/components/logging.cpp

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2018-11-30 11:08:08 +01:00
/*
* logging.cpp
*
* Created on: 24.12.2018
* Author: eyck
*/
#include <systemc>
#include <deque>
#include <array>
#include <sstream>
#include <iomanip>
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#include "logging_.h"
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using namespace sc_core;
enum log_level {NONE, FATAL, ERROR, WARNING, INFO, DEBUG, TRACE};
namespace {
static std::deque<std::string> msg_buf;
inline log_level verbosity2log(int verb) {
if (verb >= sc_core::SC_FULL) return TRACE;
if (verb >= sc_core::SC_HIGH) return DEBUG;
return INFO;
}
std::string time2string(const sc_core::sc_time &t) {
const std::array<const char *, 6> time_units{"fs", "ps", "ns", "us", "ms", "s "};
const std::array<uint64_t, 6> multiplier{1ULL,
1000ULL,
1000ULL * 1000,
1000ULL * 1000 * 1000,
1000ULL * 1000 * 1000 * 1000,
1000ULL * 1000 * 1000 * 1000 * 1000};
std::ostringstream oss;
const sc_core::sc_time_tuple tt{t};
const auto val = tt.value();
if (!val) {
oss << "0 s";
} else {
const unsigned scale = tt.unit();
const auto fs_val = val * multiplier[scale];
for (int j = multiplier.size() - 1; j >= scale; --j) {
if (fs_val > multiplier[j]) {
const auto i = val / multiplier[j - scale];
const auto f = val % multiplier[j - scale];
oss << i << '.' << std::setw(3 * (j - scale)) << std::setfill('0') << std::left << f << ' '
<< time_units[j];
break;
}
}
}
return oss.str();
}
const std::string compose_message(const sc_report &rep) {
std::stringstream os;
os << "[" << std::setw(20) << time2string(sc_core::sc_time_stamp()) << "] ";
if (rep.get_id() >= 0)
os << "("
<< "IWEF"[rep.get_severity()] << rep.get_id() << ") ";
os << rep.get_msg_type();
if (*rep.get_msg()) os << ": " << rep.get_msg();
if (rep.get_severity() > SC_INFO) {
std::array<char, 16> line_number_str;
os << " [FILE:" << rep.get_file_name() << ":" << rep.get_line_number() << "]";
sc_simcontext *simc = sc_get_curr_simcontext();
if (simc && sc_is_running()) {
const char *proc_name = rep.get_process_name();
if (proc_name) os << "[PROCESS:" << proc_name << "]";
}
}
return os.str();
}
void report_handler(const sc_report &rep, const sc_actions &actions) {
std::array<const log_level, 4> map = {{INFO, WARNING, ERROR, FATAL}};
if (actions & SC_DISPLAY) {
auto level = rep.get_severity() > sc_core::SC_INFO ? map[rep.get_severity()] : verbosity2log(rep.get_verbosity());
msg_buf.push_back(compose_message(rep));
}
if (actions & SC_STOP) sc_stop();
if (actions & SC_ABORT) abort();
if (actions & SC_THROW) throw rep;
}
}
bool has_output(){
return !msg_buf.empty();
}
std::string get_output(){
std::string ret = msg_buf.front();
msg_buf.pop_front();
return ret;
}
void init_logging(unsigned level) {
const std::array<int, 8> verbosity = {SC_NONE, // Logging::NONE
SC_LOW, // Logging::FATAL
SC_LOW, // Logging::ERROR
SC_LOW, // Logging::WARNING
SC_MEDIUM, // Logging::INFO
SC_HIGH, // logging::DEBUG
SC_FULL, // logging::TRACE
SC_DEBUG}; // logging::TRACE+1
sc_report_handler::set_verbosity_level(verbosity[level]);
sc_report_handler::set_handler(report_handler);
}