DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (5216dd412535)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347
/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * mozilla.org
 * Portions created by the Initial Developer are Copyright (C) 2008
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Vladimir Vukicevic <vladimir@pobox.com> (original author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsCOMPtr.h"
#include "nsServiceManagerUtils.h"
#include "nsMemoryReporterManager.h"
#include "nsArrayEnumerator.h"

/**
 ** memory reporter implementation for jemalloc and OSX malloc,
 ** to obtain info on total memory in use (that we know about,
 ** at least -- on OSX, there are sometimes other zones in use).
 **/

#if defined(MOZ_MEMORY)
#  if defined(XP_WIN) || defined(SOLARIS) || defined(ANDROID)
#    define HAVE_JEMALLOC_STATS 1
#    include "jemalloc.h"
#  elif defined(XP_LINUX)
#    define HAVE_JEMALLOC_STATS 1
#    include "jemalloc_types.h"
// jemalloc is directly linked into firefox-bin; libxul doesn't link
// with it.  So if we tried to use jemalloc_stats directly here, it
// wouldn't be defined.  Instead, we don't include the jemalloc header
// and weakly link against jemalloc_stats.
extern "C" {
extern void jemalloc_stats(jemalloc_stats_t* stats)
  NS_VISIBILITY_DEFAULT __attribute__((weak));
}
#  endif  // XP_LINUX
#endif  // MOZ_MEMORY

#if HAVE_JEMALLOC_STATS
#  define HAVE_MALLOC_REPORTERS 1

PRInt64 getMallocMapped(void *) {
    jemalloc_stats_t stats;
    jemalloc_stats(&stats);
    return (PRInt64) stats.mapped;
}

PRInt64 getMallocAllocated(void *) {
    jemalloc_stats_t stats;
    jemalloc_stats(&stats);
    return (PRInt64) stats.allocated;
}

PRInt64 getMallocCommitted(void *) {
    jemalloc_stats_t stats;
    jemalloc_stats(&stats);
    return (PRInt64) stats.committed;
}

PRInt64 getMallocDirty(void *) {
    jemalloc_stats_t stats;
    jemalloc_stats(&stats);
    return (PRInt64) stats.dirty;
}

#elif defined(XP_MACOSX) && !defined(MOZ_MEMORY)
#define HAVE_MALLOC_REPORTERS 1
#include <malloc/malloc.h>

static PRInt64 getMallocAllocated(void *) {
    struct mstats stats = mstats();
    return (PRInt64) stats.bytes_used;
}

static PRInt64 getMallocMapped(void *) {
    struct mstats stats = mstats();
    return (PRInt64) stats.bytes_total;
}

static PRInt64 getMallocDefaultCommitted(void *) {
    malloc_statistics_t stats;
    malloc_zone_statistics(malloc_default_zone(), &stats);
    return stats.size_in_use;
}

static PRInt64 getMallocDefaultAllocated(void *) {
    malloc_statistics_t stats;
    malloc_zone_statistics(malloc_default_zone(), &stats);
    return stats.size_allocated;
}

#endif


#ifdef HAVE_MALLOC_REPORTERS
NS_MEMORY_REPORTER_IMPLEMENT(MallocAllocated,
                             "malloc/allocated",
                             "Malloc bytes allocated (in use by application)",
                             getMallocAllocated,
                             NULL)

NS_MEMORY_REPORTER_IMPLEMENT(MallocMapped,
                             "malloc/mapped",
                             "Malloc bytes mapped (not necessarily committed)",
                             getMallocMapped,
                             NULL)

#if defined(HAVE_JEMALLOC_STATS)
NS_MEMORY_REPORTER_IMPLEMENT(MallocCommitted,
                             "malloc/committed",
                             "Malloc bytes committed (readable/writable)",
                             getMallocCommitted,
                             NULL)

NS_MEMORY_REPORTER_IMPLEMENT(MallocDirty,
                             "malloc/dirty",
                             "Malloc bytes dirty (committed unused pages)",
                             getMallocDirty,
                             NULL)
#elif defined(XP_MACOSX) && !defined(MOZ_MEMORY)
NS_MEMORY_REPORTER_IMPLEMENT(MallocDefaultCommitted,
                             "malloc/zone0/committed",
                             "Malloc bytes committed (r/w) in default zone",
                             getMallocDefaultCommitted,
                             NULL)

NS_MEMORY_REPORTER_IMPLEMENT(MallocDefaultAllocated,
                             "malloc/zone0/allocated",
                             "Malloc bytes allocated (in use) in default zone",
                             getMallocDefaultAllocated,
                             NULL)
#endif

#endif

#if defined(XP_WIN) && !defined(WINCE)
#include <windows.h>
#include <psapi.h>

static PRInt64 GetWin32PrivateBytes(void *) {
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
  PROCESS_MEMORY_COUNTERS_EX pmcex;
  pmcex.cb = sizeof(PROCESS_MEMORY_COUNTERS_EX);

  if (!GetProcessMemoryInfo(GetCurrentProcess(),
                            (PPROCESS_MEMORY_COUNTERS) &pmcex,
                            sizeof(PROCESS_MEMORY_COUNTERS_EX)))
    return 0;

  return pmcex.PrivateUsage;
#else
  return 0;
#endif
}

static PRInt64 GetWin32WorkingSetSize(void *) {
  PROCESS_MEMORY_COUNTERS pmc;
  pmc.cb = sizeof(PROCESS_MEMORY_COUNTERS);

  if (!GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)))
      return 0;

  return pmc.WorkingSetSize;
}

NS_MEMORY_REPORTER_IMPLEMENT(Win32WorkingSetSize,
                             "win32/workingset",
                             "Win32 working set size",
                             GetWin32WorkingSetSize,
                             nsnull);

NS_MEMORY_REPORTER_IMPLEMENT(Win32PrivateBytes,
                             "win32/privatebytes",
                             "Win32 private bytes (cannot be shared with other processes).  (Available only on Windows XP SP2 or later.)",
                             GetWin32PrivateBytes,
                             nsnull);
#endif

/**
 ** nsMemoryReporterManager implementation
 **/

NS_IMPL_THREADSAFE_ISUPPORTS1(nsMemoryReporterManager, nsIMemoryReporterManager)

NS_IMETHODIMP
nsMemoryReporterManager::Init()
{
#if HAVE_JEMALLOC_STATS && defined(XP_LINUX)
    if (!jemalloc_stats)
        return NS_ERROR_FAILURE;
#endif
    /*
     * Register our core reporters
     */
#define REGISTER(_x)  RegisterReporter(new NS_MEMORY_REPORTER_NAME(_x))

    /*
     * Register our core jemalloc/malloc reporters
     */
#ifdef HAVE_MALLOC_REPORTERS
    REGISTER(MallocAllocated);
    REGISTER(MallocMapped);

#if defined(HAVE_JEMALLOC_STATS)
    REGISTER(MallocCommitted);
    REGISTER(MallocDirty);
#elif defined(XP_MACOSX) && !defined(MOZ_MEMORY)
    REGISTER(MallocDefaultCommitted);
    REGISTER(MallocDefaultAllocated);
#endif
#endif

#if defined(XP_WIN) && !defined(WINCE)
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
    REGISTER(Win32PrivateBytes);
#endif
    REGISTER(Win32WorkingSetSize);
#endif

    return NS_OK;
}

nsMemoryReporterManager::nsMemoryReporterManager()
  : mMutex("nsMemoryReporterManager::mMutex")
{
}

nsMemoryReporterManager::~nsMemoryReporterManager()
{
}

NS_IMETHODIMP
nsMemoryReporterManager::EnumerateReporters(nsISimpleEnumerator **result)
{
    nsresult rv;
    mozilla::MutexAutoLock autoLock(mMutex); 
    rv = NS_NewArrayEnumerator(result, mReporters);
    return rv;
}

NS_IMETHODIMP
nsMemoryReporterManager::RegisterReporter(nsIMemoryReporter *reporter)
{
    mozilla::MutexAutoLock autoLock(mMutex); 
    if (mReporters.IndexOf(reporter) != -1)
        return NS_ERROR_FAILURE;

    mReporters.AppendObject(reporter);
    return NS_OK;
}

NS_IMETHODIMP
nsMemoryReporterManager::UnregisterReporter(nsIMemoryReporter *reporter)
{
    mozilla::MutexAutoLock autoLock(mMutex); 
    if (!mReporters.RemoveObject(reporter))
        return NS_ERROR_FAILURE;

    return NS_OK;
}

NS_IMPL_ISUPPORTS1(nsMemoryReporter, nsIMemoryReporter)

nsMemoryReporter::nsMemoryReporter(nsCString& prefix,
                                   nsCString& path,
                                   nsCString& desc,
                                   PRInt64 memoryUsed)
: mDesc(desc)
, mMemoryUsed(memoryUsed) 
{
  if (!prefix.IsEmpty()) {
    mPath.Append(prefix);
    mPath.Append(NS_LITERAL_CSTRING(" - "));
  }
  mPath.Append(path);
}

nsMemoryReporter::~nsMemoryReporter()
{
}

NS_IMETHODIMP nsMemoryReporter::GetPath(char **aPath)
{
  *aPath = strdup(mPath.get());
  return NS_OK;
}

NS_IMETHODIMP nsMemoryReporter::GetDescription(char **aDescription)
{
  *aDescription = strdup(mDesc.get());
  return NS_OK;
}

NS_IMETHODIMP nsMemoryReporter::GetMemoryUsed(PRInt64 *aMemoryUsed)
{
  *aMemoryUsed = mMemoryUsed;
  return NS_OK;
}


NS_COM nsresult
NS_RegisterMemoryReporter (nsIMemoryReporter *reporter)
{
    nsCOMPtr<nsIMemoryReporterManager> mgr = do_GetService("@mozilla.org/memory-reporter-manager;1");
    if (mgr == nsnull)
        return NS_ERROR_FAILURE;
    return mgr->RegisterReporter(reporter);
}

NS_COM nsresult
NS_UnregisterMemoryReporter (nsIMemoryReporter *reporter)
{
    nsCOMPtr<nsIMemoryReporterManager> mgr = do_GetService("@mozilla.org/memory-reporter-manager;1");
    if (mgr == nsnull)
        return NS_ERROR_FAILURE;
    return mgr->UnregisterReporter(reporter);
}