trace.cc (4039:b910b61a52b9) | trace.cc (4042:dbd98b2264ed) |
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1/* 2 * Copyright (c) 2001-2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 32 unchanged lines hidden (view full) --- 41#include "base/str.hh" 42#include "base/varargs.hh" 43 44using namespace std; 45 46namespace Trace { 47const string DefaultName("global"); 48FlagVec flags(NumFlags, false); | 1/* 2 * Copyright (c) 2001-2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 32 unchanged lines hidden (view full) --- 41#include "base/str.hh" 42#include "base/varargs.hh" 43 44using namespace std; 45 46namespace Trace { 47const string DefaultName("global"); 48FlagVec flags(NumFlags, false); |
49bool enabled = true; |
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49 50// 51// This variable holds the output stream for debug information. Other 52// than setting up/redirecting this stream, do *NOT* reference this 53// directly; use DebugOut() (see below) to access this stream for 54// output. 55// 56ostream *dprintf_stream = &cerr; --- 161 unchanged lines hidden (view full) --- 218 219 ccprintf(os, "\n"); 220 221 if (c < 16) 222 break; 223 } 224} 225} // namespace Trace | 50 51// 52// This variable holds the output stream for debug information. Other 53// than setting up/redirecting this stream, do *NOT* reference this 54// directly; use DebugOut() (see below) to access this stream for 55// output. 56// 57ostream *dprintf_stream = &cerr; --- 161 unchanged lines hidden (view full) --- 219 220 ccprintf(os, "\n"); 221 222 if (c < 16) 223 break; 224 } 225} 226} // namespace Trace |
226 227// 228// Returns the current output stream for debug information. As a 229// wrapper around Trace::dprintf_stream, this handles cases where debug 230// information is generated in the process of parsing .ini options, 231// before we process the option that sets up the debug output stream 232// itself. 233// 234std::ostream & 235DebugOut() 236{ 237 return *Trace::dprintf_stream; 238} 239 240///////////////////////////////////////////// 241// 242// C-linkage functions for invoking from gdb 243// 244///////////////////////////////////////////// 245 246// 247// Dump trace buffer to specified file (cout if NULL) 248// 249void 250dumpTrace(const char *filename) 251{ 252 if (filename != NULL) { 253 ofstream out(filename); 254 Trace::theLog.dump(out); 255 out.close(); 256 } 257 else { 258 Trace::theLog.dump(cout); 259 } 260} 261 262 263// 264// Turn on/off trace output to cerr. Typically used when trace output 265// is only going to circular buffer, but you want to see what's being 266// sent there as you step through some code in gdb. This uses the 267// same facility as the "trace to file" feature, and will print error 268// messages rather than clobbering an existing ostream pointer. 269// 270void 271echoTrace(bool on) 272{ 273 if (on) { 274 if (Trace::dprintf_stream != NULL) { 275 cerr << "Already echoing trace to a file... go do a 'tail -f'" 276 << " on that file instead." << endl; 277 } else { 278 Trace::dprintf_stream = &cerr; 279 } 280 } else { 281 if (Trace::dprintf_stream != &cerr) { 282 cerr << "Not echoing trace to cerr." << endl; 283 } else { 284 Trace::dprintf_stream = NULL; 285 } 286 } 287} 288 289void 290printTraceFlags() 291{ 292 using namespace Trace; 293 for (int i = 0; i < numFlagStrings; ++i) 294 if (flags[i]) 295 cprintf("%s\n", flagStrings[i]); 296} 297 298void 299tweakTraceFlag(const char *string, bool value) 300{ 301 using namespace Trace; 302 std::string str(string); 303 304 for (int i = 0; i < numFlagStrings; ++i) { 305 if (str != flagStrings[i]) 306 continue; 307 308 int idx = i; 309 310 if (idx < NumFlags) { 311 flags[idx] = value; 312 } else { 313 idx -= NumFlags; 314 if (idx >= NumCompoundFlags) { 315 ccprintf(cerr, "Invalid compound flag"); 316 return; 317 } 318 319 const Flags *flagVec = compoundFlags[idx]; 320 321 for (int j = 0; flagVec[j] != -1; ++j) { 322 if (flagVec[j] >= NumFlags) { 323 ccprintf(cerr, "Invalid compound flag"); 324 return; 325 } 326 flags[flagVec[j]] = value; 327 } 328 } 329 330 cprintf("flag %s was %s\n", string, value ? "set" : "cleared"); 331 return; 332 } 333 334 cprintf("could not find flag %s\n", string); 335} 336 337void 338setTraceFlag(const char *string) 339{ 340 tweakTraceFlag(string, true); 341} 342 343void 344clearTraceFlag(const char *string) 345{ 346 tweakTraceFlag(string, false); 347} | |