115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
#ifndef _CONFIG_HPP
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#define _CONFIG_HPP
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#include <iostream>
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#include <string>
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#include <cstddef>
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#include <cstring>
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namespace bserv {
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const char* NAME = "bserv";
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unsigned short PORT = 8080;
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int NUM_THREADS = 4;
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int NUM_DB_CONN = 10;
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std::size_t PAYLOAD_LIMIT = 1 * 1024 * 1024;
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std::size_t LOG_ROTATION_SIZE = 4 * 1024 * 1024;
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std::string LOG_PATH = "./log/";
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std::string DB_CONN_STR = "dbname=bserv";
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void show_usage() {
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std::cout << "Usage: " << NAME << " [OPTION...]\n"
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<< NAME << " is a C++ Boost-based HTTP server.\n\n"
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"Example:\n"
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<< " " << NAME << " -p 8081 --threads 2\n\n"
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"Option:\n"
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" -h, --help show help and exit\n"
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" -p, --port port (default: 8080)\n"
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" --threads number of threads (default: 4)\n"
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" --num-conn number of database connections (default: 10)\n"
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" --payload payload limit for request in mega bytes (default: 1)\n"
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" --rotation log rotation size in mega bytes (default: 4)\n"
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" --log-path log path (default: ./log/)\n"
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" -c, --conn-str connection string (default: dbname=bserv)"
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<< std::endl;
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}
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// returns `true` if error occurs
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bool parse_arguments(int argc, char* argv[]) {
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for (int i = 1; i < argc; ++i) {
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if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
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show_usage();
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return true;
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} else if (strcmp(argv[i], "-p") == 0 || strcmp(argv[i], "--port") == 0) {
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if (i + 1 < argc) {
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PORT = atoi(argv[i + 1]);
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else if (strcmp(argv[i], "--threads") == 0) {
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if (i + 1 < argc) {
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NUM_THREADS = atoi(argv[i + 1]);
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else if (strcmp(argv[i], "--num-conn") == 0) {
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if (i + 1 < argc) {
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NUM_DB_CONN = atoi(argv[i + 1]);
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else if (strcmp(argv[i], "--payload") == 0) {
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if (i + 1 < argc) {
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PAYLOAD_LIMIT = atoi(argv[i + 1]) * 1024 * 1024;
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else if (strcmp(argv[i], "--rotation") == 0) {
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if (i + 1 < argc) {
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LOG_ROTATION_SIZE = atoi(argv[i + 1]) * 1024 * 1024;
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else if (strcmp(argv[i], "--log-path") == 0) {
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if (i + 1 < argc) {
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LOG_PATH = argv[i + 1];
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if (LOG_PATH.back() != '/')
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LOG_PATH += '/';
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else if (strcmp(argv[i], "-c") == 0 || strcmp(argv[i], "--conn-str") == 0) {
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if (i + 1 < argc) {
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DB_CONN_STR = argv[i + 1];
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++i;
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} else {
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std::cerr << "Missing value after: " << argv[i] << std::endl;
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return true;
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}
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} else {
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std::cerr << "Unrecognized option: " << argv[i] << '\n' << std::endl;
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show_usage();
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return true;
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}
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}
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return false;
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}
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} // bserv
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#endif // _CONFIG_HPP
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