misc.cc
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:6k
- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1994 Regents of the University of California.
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- *
- * miscellaneous "ns" commands
- */
- #ifndef lint
- static const char rcsid[] =
- "@(#) $Header: /cvsroot/nsnam/ns-2/common/misc.cc,v 1.14 2002/06/04 23:25:19 haldar Exp $ (LBL)";
- #endif
- #include <stdlib.h>
- #include <math.h>
- #ifndef WIN32
- #include <sys/time.h>
- #endif
- #include <ctype.h>
- #include "config.h"
- #include "scheduler.h"
- #include "random.h"
- #if defined(HAVE_INT64)
- class Add64Command : public TclCommand {
- public:
- Add64Command() : TclCommand("ns-add64") {}
- virtual int command(int argc, const char*const* argv);
- };
- int Add64Command::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- if (argc == 3) {
- char res[22]; /* A 64 bit int at most 20 digits */
- int64_t d1 = STRTOI64(argv[1], NULL, 0);
- int64_t d2 = STRTOI64(argv[2], NULL, 0);
- sprintf(res, STRTOI64_FMTSTR, d1+d2);
- tcl.resultf("%s", res);
- return (TCL_OK);
- }
- tcl.add_error("ns-add64 requires two arguments.");
- return (TCL_ERROR);
- }
- class Mult64Command : public TclCommand {
- public:
- Mult64Command() : TclCommand("ns-mult64") {}
- virtual int command(int argc, const char*const* argv);
- };
- int Mult64Command::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- if (argc == 3) {
- char res[22]; /* A 64 bit int at most 20 digits */
- int64_t d1 = STRTOI64(argv[1], NULL, 0);
- int64_t d2 = STRTOI64(argv[2], NULL, 0);
- sprintf(res, STRTOI64_FMTSTR, d1*d2);
- tcl.resultf("%s", res);
- return (TCL_OK);
- }
- tcl.add_error("ns-mult64 requires two arguments.");
- return (TCL_ERROR);
- }
- class Int64ToDoubleCommand : public TclCommand {
- public:
- Int64ToDoubleCommand() : TclCommand("ns-int64todbl") {}
- virtual int command(int argc, const char*const* argv);
- };
- int Int64ToDoubleCommand::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- if (argc == 2) {
- char res[22]; /* A 64 bit int at most 20 digits */
- int64_t d1 = STRTOI64(argv[1], NULL, 0);
- double d2 = d1;
- sprintf(res, "%.1f",d2);
- tcl.resultf("%s", res);
- return (TCL_OK);
- }
- tcl.add_error("ns-int64todbl requires only one arguments.");
- return (TCL_ERROR);
- }
- #endif
- class HasInt64Command : public TclCommand {
- public:
- HasInt64Command() : TclCommand("ns-hasint64") {}
- virtual int command(int argc, const char*const* argv);
- };
- int HasInt64Command::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- char res[2];
- int flag = 0;
- #if defined(HAVE_INT64)
- flag = 1;
- #endif
- sprintf(res, "%d", flag);
- tcl.resultf("%s", res);
- return (TCL_OK);
- }
- class RandomCommand : public TclCommand {
- public:
- RandomCommand() : TclCommand("ns-random") { }
- virtual int command(int argc, const char*const* argv);
- };
- /*
- * ns-random
- * ns-random $seed
- */
- int RandomCommand::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- if (argc == 1) {
- sprintf(tcl.buffer(), "%u", Random::random());
- tcl.result(tcl.buffer());
- } else if (argc == 2) {
- int seed = atoi(argv[1]);
- if (seed == 0)
- seed = Random::seed_heuristically();
- else
- Random::seed(seed);
- tcl.resultf("%d", seed);
- }
- return (TCL_OK);
- }
- extern "C" char version_string[];
- class VersionCommand : public TclCommand {
- public:
- VersionCommand() : TclCommand("ns-version") { }
- virtual int command(int, const char*const*) {
- Tcl::instance().result(version_string);
- return (TCL_OK);
- }
- };
- class HasSTLCommand : public TclCommand {
- public:
- HasSTLCommand() : TclCommand("ns-hasSTL") {}
- virtual int command(int argc, const char*const* argv);
- };
- int HasSTLCommand::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- char res[2];
- int flag = 0;
- #if defined(HAVE_STL)
- flag = 1;
- #endif
- sprintf(res, "%d", flag);
- tcl.resultf("%s", res);
- return (TCL_OK);
- }
- class TimeAtofCommand : public TclCommand {
- public:
- TimeAtofCommand() : TclCommand("time_atof") { }
- virtual int command(int argc, const char*const* argv) {
- if (argc != 2)
- return (TCL_ERROR);
- char* s = (char*) argv[1];
- char wrk[32];
- char* cp = wrk;
- while (isdigit(*s) || *s == 'e' ||
- *s == '+' || *s == '-' || *s == '.')
- *cp++ = *s++;
- *cp = 0;
- double v = atof(wrk);
- switch (*s) {
- case 'm':
- v *= 1e-3;
- break;
- case 'u':
- v *= 1e-6;
- break;
- case 'n':
- v *= 1e-9;
- break;
- case 'p':
- v *= 1e-12;
- break;
- }
- Tcl::instance().resultf("%g", v);
- return (TCL_OK);
- }
- };
- void init_misc(void)
- {
- (void)new VersionCommand;
- (void)new RandomCommand;
- (void)new TimeAtofCommand;
- (void)new HasInt64Command;
- (void)new HasSTLCommand;
- #if defined(HAVE_INT64)
- (void)new Add64Command;
- (void)new Mult64Command;
- (void)new Int64ToDoubleCommand;
- #endif
- }