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// Copyright 2009-2020 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "application.h"
#if defined(_WIN32)
# include <stdio.h>
# include <conio.h>
# include <windows.h>
#endif
namespace embree
{
Application* Application::instance = nullptr;
void waitForKeyPressedUnderWindows()
{
#if defined(_WIN32)
HANDLE hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (!GetConsoleScreenBufferInfo(hStdOutput, &csbi)) {
printf("GetConsoleScreenBufferInfo failed: %d\n", GetLastError());
return;
}
/* do not pause when running on a shell */
if (csbi.dwCursorPosition.X != 0 || csbi.dwCursorPosition.Y != 0)
return;
/* only pause if running in separate console window. */
printf("\n\tPress any key to exit...\n");
int ch = getch();
#endif
}
Application::Application(int features)
: rtcore("start_threads=1,set_affinity=1"), verbosity(0),
log_delta(false),
start_time(getSeconds()),
last_time(start_time),
last_virtual_memory(0),
last_resident_memory(0)
{
if (instance)
throw std::runtime_error("internal error: applicaton already created");
instance = this;
registerOption("help", [this] (Ref<ParseStream> cin, const FileName& path) {
printCommandLineHelp();
exit(1);
}, "--help: prints help for all supported command line options");
if (features & FEATURE_RTCORE)
{
registerOption("rtcore", [this] (Ref<ParseStream> cin, const FileName& path) {
rtcore += "," + cin->getString();
}, "--rtcore <string>: uses <string> to configure Embree device");
registerOption("threads", [this] (Ref<ParseStream> cin, const FileName& path) {
rtcore += ",threads=" + toString(cin->getInt());
}, "--threads <int>: number of threads to use");
registerOption("affinity", [this] (Ref<ParseStream> cin, const FileName& path) {
rtcore += ",set_affinity=1";
}, "--affinity: affinitize threads");
registerOption("set_affinity", [this] (Ref<ParseStream> cin, const FileName& path) {
rtcore += ",set_affinity=" + cin->getString();
}, "--set_affinity <0/1>: enables or disables affinitizing of threads");
registerOptionAlias("set_affinity","set-affinity");
registerOption("start_threads", [this] (Ref<ParseStream> cin, const FileName& path) {
rtcore += ",start_threads=" + cin->getString();
}, "--start_threads <0/1>: starts threads at device creation time if set to 1");
registerOptionAlias("start_threads","start-threads");
registerOption("verbose", [this] (Ref<ParseStream> cin, const FileName& path) {
verbosity = cin->getInt();
rtcore += ",verbose=" + toString(verbosity);
}, "--verbose <int>: sets verbosity level");
registerOption("delta", [this] (Ref<ParseStream> cin, const FileName& path) {
log_delta = true;
}, "--delta: print delta numbers in log");
registerOption("isa", [this] (Ref<ParseStream> cin, const FileName& path) {
rtcore += ",isa=" + cin->getString();
}, "--isa <string>: selects instruction set to use:\n"
" sse: select SSE codepath\n"
" sse2: select SSE2 codepath\n"
" sse3: select SSE3 codepath\n"
" ssse3: select SSSE3 codepath\n"
" sse4.1: select SSE4.1 codepath\n"
" sse4.2: select SSE4.2 codepath\n"
" avx: select AVX codepath\n"
" avxi: select AVXI codepath\n"
" avx2: select AVX2 codepath\n"
" avx512knl: select AVX512 codepath for KNL\n"
" avx512skx: select AVX512 codepath for SKX\n");
}
}
Application::~Application()
{
assert(instance == this);
instance = nullptr;
}
void Application::registerOptionAlias(const std::string& name, const std::string& alternativeName) {
commandLineOptionMap[alternativeName] = commandLineOptionMap[name];
}
void Application::parseCommandLine(int argc, char** argv)
{
/* create stream for parsing */
Ref<ParseStream> stream = new ParseStream(new CommandLineStream(argc, argv));
/* parse command line */
parseCommandLine(stream, FileName());
}
void Application::parseCommandLine(Ref<ParseStream> cin, const FileName& path)
{
while (true)
{
std::string tag = cin->getString();
if (tag == "") return;
std::string tag0 = tag;
/* remove - or -- and lookup command line option */
if (tag.find("-") == 0)
{
tag = tag.substr(1);
if (tag.find("-") == 0) tag = tag.substr(1);
auto option = commandLineOptionMap.find(tag);
/* process command line option */
if (option != commandLineOptionMap.end()) {
option->second->parse(cin,path);
continue;
}
}
/* handle unknown command line options */
std::cerr << "unknown command line parameter: " << tag0 << " ";
while (cin->peek() != "" && cin->peek()[0] != '-') std::cerr << cin->getString() << " ";
std::cerr << std::endl;
}
}
void Application::printCommandLineHelp()
{
for (auto& c : commandLineOptionList) {
std::cout << c->description << std::endl;
}
}
void Application::log(int verbose, const std::string& str)
{
if (verbosity < verbose)
return;
double time = getSeconds();
ssize_t virtual_memory = getVirtualMemoryBytes();
ssize_t resident_memory = getResidentMemoryBytes();
double log_time = log_delta ? time-last_time : time-start_time;
ssize_t log_virtual_memory = log_delta ? virtual_memory-last_virtual_memory : virtual_memory;
ssize_t log_resident_memory = log_delta ? resident_memory-last_resident_memory : resident_memory;
std::cout << "[ "
<< std::setw(8) << std::setprecision(3) << std::fixed << log_time << "s, "
<< std::setw(8) << std::setprecision(2) << std::fixed << double(log_virtual_memory)/1E6 << " MB virtual, "
<< std::setw(8) << std::setprecision(2) << std::fixed << double(log_resident_memory)/1E6 << " MB resident ] "
<< str << std::fixed
<< std::endl << std::flush;
last_time = time;
last_virtual_memory = virtual_memory;
last_resident_memory = resident_memory;
}
}
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