basetrace.cc
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上传日期:2015-12-11
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文件大小:5k
- /* -*- Mode:C++; c-basic-offset:8; tab-width:8 -*- */
- /*
- * Copyright (c) 1997 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 MASH Research
- * Group at the University of California Berkeley.
- * 4. Neither the name of the University nor of the Research Group 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.
- *
- */
- #include "basetrace.h"
- #include "tcp.h"
- class BaseTraceClass : public TclClass {
- public:
- BaseTraceClass() : TclClass("BaseTrace") { }
- TclObject* create(int argc, const char*const* argv) {
- return (new BaseTrace());
- }
- } basetrace_class;
- class EventTraceClass : public TclClass {
- public:
- EventTraceClass() : TclClass("BaseTrace/Event") { }
- TclObject* create(int argc, const char*const* argv) {
- return (new EventTrace());
- }
- } eventtrace_class;
- BaseTrace::BaseTrace()
- : channel_(0), namChan_(0), tagged_(0)
- {
- wrk_ = new char[1026];
- nwrk_ = new char[256];
- }
- BaseTrace::~BaseTrace()
- {
- delete wrk_;
- delete nwrk_;
- }
- void BaseTrace::dump()
- {
- int n = strlen(wrk_);
- if ((n > 0) && (channel_ != 0)) {
- /*
- * tack on a newline (temporarily) instead
- * of doing two writes
- */
- wrk_[n] = 'n';
- wrk_[n + 1] = 0;
- /* -NEW- */
- //printf("%s",wrk_);
- (void)Tcl_Write(channel_, wrk_, n + 1);
- /* END -NEW- */
- //Tcl_Flush(channel_);
- wrk_[n] = 0;
- }
- // if (callback_) {
- // Tcl& tcl = Tcl::instance();
- // tcl.evalf("%s handle { %s }", name(), wrk_);
- // }
- }
- void BaseTrace::namdump()
- {
- int n = 0;
- /* Otherwise nwrk_ isn't initialized */
- if (namChan_ != 0)
- n = strlen(nwrk_);
- if ((n > 0) && (namChan_ != 0)) {
- /*
- * tack on a newline (temporarily) instead
- * of doing two writes
- */
- nwrk_[n] = 'n';
- nwrk_[n + 1] = 0;
- (void)Tcl_Write(namChan_, nwrk_, n + 1);
- //Tcl_Flush(channel_);
- nwrk_[n] = 0;
- }
- }
- /*
- * $trace detach
- * $trace flush
- * $trace attach $fileID
- */
- int BaseTrace::command(int argc, const char*const* argv)
- {
- Tcl& tcl = Tcl::instance();
- if (argc == 2) {
- if (strcmp(argv[1], "detach") == 0) {
- channel_ = 0;
- namChan_ = 0;
- return (TCL_OK);
- }
- if (strcmp(argv[1], "flush") == 0) {
- if (channel_ != 0)
- Tcl_Flush(channel_);
- if (namChan_ != 0)
- Tcl_Flush(namChan_);
- return (TCL_OK);
- }
- if (strcmp(argv[1], "tagged") == 0) {
- tcl.resultf("%d", tagged());
- return (TCL_OK);
- }
- } else if (argc == 3) {
- if (strcmp(argv[1], "attach") == 0) {
- int mode;
- const char* id = argv[2];
- channel_ = Tcl_GetChannel(tcl.interp(), (char*)id,
- &mode);
- if (channel_ == 0) {
- tcl.resultf("trace: can't attach %s for writing", id);
- return (TCL_ERROR);
- }
- return (TCL_OK);
- }
- if (strcmp(argv[1], "namattach") == 0) {
- int mode;
- const char* id = argv[2];
- namChan_ = Tcl_GetChannel(tcl.interp(), (char*)id,
- &mode);
- if (namChan_ == 0) {
- tcl.resultf("trace: can't attach %s for writing", id);
- return (TCL_ERROR);
- }
- return (TCL_OK);
- }
- if (strcmp(argv[1], "tagged") == 0) {
- int tag;
- if (Tcl_GetBoolean(tcl.interp(),
- (char*)argv[2], &tag) == TCL_OK) {
- tagged(tag);
- return (TCL_OK);
- } else return (TCL_ERROR);
- }
- }
- return (TclObject::command(argc, argv));
- }
- /* The eventtrace format is tentative for now; will be extended in future to include data like window size, rtt, segsize, segperack etc */
- void EventTrace::trace()
- {
- dump();
- namdump();
- }