Restructure project, start importing sc3 code.

src/bin/phonebook.cc

@@ -0,0 +1,194 @@
+///
+/// \file phonebook.cc
+/// \author K. Isom <kyle@imap.cc>
+/// \date 2023-10-10
+/// \brief Commandline tools for interacting with dictionary data file.
+///
+/// Copyright 2023 K. Isom <kyle@imap.cc>
+///
+/// Permission to use, copy, modify, and/or distribute this software for
+/// any purpose with or without fee is hereby granted, provided that
+/// the above copyright notice and this permission notice appear in all /// copies.
+///
+/// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+/// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+/// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+/// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+/// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+/// OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+/// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+/// PERFORMANCE OF THIS SOFTWARE.
+///
+
+#include <iostream>
+#include <string>
+using namespace std;
+
+#include <scsl/Arena.h>
+#include <scsl/Commander.h>
+#include <scsl/Dictionary.h>
+using namespace scsl;
+
+static const char	*defaultPhonebook = "pb.dat";
+static char		*pbFile = (char *)defaultPhonebook;
+static Arena	 	 arena;
+static Dictionary	 pb(arena);
+
+
+static bool
+listFiles(int argc, char **argv)
+{
+	(void)argc; (void)argv;
+	cout << "[+] keys in '" << pbFile << "':\n";
+	cout << pb;
+	return true;
+}
+
+static bool
+newPhonebook(int argc, char **argv)
+{
+	(void)argc;
+
+	auto	size = std::stoul(string(argv[0]));
+	cout << "[+] create new " << size << "B phonebook '" << pbFile << "'\n";
+
+	return arena.Create(pbFile, size) == 0;
+}
+
+static bool
+delKey(int argc, char **argv)
+{
+	(void)argc;
+	string key = argv[0];
+
+	cout << "[+] deleting key '" << key << "'\n";
+	return pb.Delete(key.c_str(), key.size());
+}
+
+static bool
+hasKey(int argc, char **argv)
+{
+	(void)argc;
+	string key = argv[0];
+
+	cout << "[+] looking up '" << key << "': ";
+	if (pb.Contains(key.c_str(), key.size())) {
+		cout << "found\n";
+		return true;
+	}
+
+	cout << "not found\n";
+	return true;
+}
+
+static bool
+getKey(int argc, char **argv)
+{
+	(void)argc;
+	TLV::Record	rec;
+	auto key = string(argv[0]);
+
+	cout << "[+] key '" << key << "' ";
+	if (!pb.Lookup(key.c_str(), key.size(), rec)) {
+		cout << "not found\n";
+		return false;
+	}
+
+	cout << "-> " << rec.Val << "\n";
+	return true;
+}
+
+
+static bool
+putKey(int argc, char **argv)
+{
+	(void)argc;
+	auto key = string(argv[0]);
+	auto val = string(argv[1]);
+
+	cout << "[+] setting '" << key << "' -> '" << val << "': ";
+	if (pb.Set(key.c_str(), key.size(), val.c_str(), val.size()) != 0) {
+		cout << "failed\n";
+		return false;
+	}
+
+	cout << "set\n";
+	return true;
+}
+
+static void
+usage(ostream &os, int exc)
+{
+	os << "phonebook is a tool for interacting with phonebook files.\n";
+	os << "\nThe default filename is pb.dat.\n\n";
+	os << "Usage:\n";
+	os << "\tphonebook [-f file] list\n";
+	os << "\tphonebook [-f file] new size\n";
+	os << "\tphonebook [-f file] del key\n";
+	os << "\tphonebook [-f file] has key\n";
+	os << "\tphonebook [-f file] get key\n";
+	os << "\tphonebook [-f file] put key value\n";
+	os << "\n";
+
+	exit(exc);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int		 optind = 1;
+
+	for (optind = 1; optind < argc; optind++) {
+		auto arg = string(argv[optind]);
+		if (arg[0] != '-')	break;
+		if (arg == "-h")	usage(cout, 0);
+		if (arg == "-f") {
+			pbFile = argv[optind+1];
+			optind++;
+			continue;
+		}
+
+		usage(cerr, 1);
+	}
+
+	if (argc <= 1) {
+		usage(cout, 0);
+	}
+
+	auto command = string(argv[optind++]);
+	Commander	commander;
+
+	commander.Register(Subcommand("list", 0, listFiles));
+	commander.Register(Subcommand("new", 1, newPhonebook));
+	commander.Register(Subcommand("del", 1, delKey));
+	commander.Register(Subcommand("has", 1, hasKey));
+	commander.Register(Subcommand("get", 1, getKey));
+	commander.Register(Subcommand("put", 2, putKey));
+
+	if (command != "new") {
+		cout << "[+] loading phonebook from " << pbFile << "\n";
+		if (arena.Open(pbFile) != 0) {
+			cerr << "Failed to open " << pbFile << "\n";
+			exit(1);
+		}
+	}
+
+	auto result = commander.Run(command, argc-optind, argv+optind);
+	switch (result) {
+	case Subcommand::Status::OK:
+		std::cout << "[+] OK\n";
+		break;
+	case Subcommand::Status::NotEnoughArgs:
+		usage(cerr, 1);
+		break;
+	case Subcommand::Status::Failed:
+		cerr << "[!] '"<< command << "' failed\n";
+		break;
+	case Subcommand::Status::CommandNotRegistered:
+		cerr << "[!] '" << command << "' not registered.\n";
+		usage(cerr, 1);
+		break;
+	default:
+		abort();
+	}
+}