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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /include/iprt/memtracker.h
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/iprt/memtracker.h')
-rw-r--r--include/iprt/memtracker.h257
1 files changed, 257 insertions, 0 deletions
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+/** @file
+ * IPRT - Memory Tracker.
+ */
+
+/*
+ * Copyright (C) 2010-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef IPRT_INCLUDED_memtracker_h
+#define IPRT_INCLUDED_memtracker_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/cdefs.h>
+#include <iprt/types.h>
+#include <iprt/list.h>
+
+RT_C_DECLS_BEGIN
+
+/** @defgroup grp_rt_memtracker RTMemTracker - Memory Allocation Tracker.
+ * @ingroup grp_rt
+ * @{
+ */
+
+/**
+ * The allocation/free method.
+ */
+typedef enum RTMEMTRACKERMETHOD
+{
+ RTMEMTRACKERMETHOD_INVALID = 0,
+ RTMEMTRACKERMETHOD_ALLOC,
+ RTMEMTRACKERMETHOD_ALLOCZ,
+ RTMEMTRACKERMETHOD_REALLOC_PREP, /**< Internal, don't use. */
+ RTMEMTRACKERMETHOD_REALLOC_DONE, /**< Internal, don't use. */
+ RTMEMTRACKERMETHOD_REALLOC_FAILED, /**< Internal, don't use. */
+ RTMEMTRACKERMETHOD_FREE,
+
+ RTMEMTRACKERMETHOD_NEW,
+ RTMEMTRACKERMETHOD_NEW_ARRAY,
+ RTMEMTRACKERMETHOD_DELETE,
+ RTMEMTRACKERMETHOD_DELETE_ARRAY,
+ RTMEMTRACKERMETHOD_END,
+ RTMEMTRACKERMETHOD_32BIT_HACK = 0x7fffffff
+} RTMEMTRACKERMETHOD;
+
+/** Pointer to a tag structure. */
+typedef struct RTMEMTRACKERTAG *PRTMEMTRACKERTAG;
+
+/** Pointer to a user structure. */
+typedef struct RTMEMTRACKERUSER *PRTMEMTRACKERUSER;
+
+/**
+ * Memory Tracking Header for use with RTMemTrackerHdrAlloc,
+ * RTMemTrackerHdrReallocPrep, RTMemTrackerHdrReallocDone and
+ * RTMemTrackerHdrFree.
+ */
+typedef struct RTMEMTRACKERHDR
+{
+ /** Magic value / eye catcher (RTMEMTRACKERHDR_MAGIC). */
+ size_t uMagic;
+ /** The allocation size, user data only. */
+ size_t cbUser;
+ /** The list entry. */
+ RTLISTNODE ListEntry;
+ /** Pointer to the user structure where this header is linked. */
+ PRTMEMTRACKERUSER pUser;
+ /** Pointer to the per-tag structure. */
+ PRTMEMTRACKERTAG pTag;
+ /** The tag string. */
+ const char *pszTag;
+ /** The caller address. */
+ void *pvCaller;
+ /** Pointer to the user data we're tracking. */
+ void *pvUser;
+ /** Alignment padding. */
+ size_t uReserved;
+} RTMEMTRACKERHDR;
+/** Pointer to a memory tracker header. */
+typedef RTMEMTRACKERHDR *PRTMEMTRACKERHDR;
+/** Pointer to a const memory tracker header. */
+typedef RTMEMTRACKERHDR *PPRTMEMTRACKERHDR;
+
+/** Magic value for RTMEMTRACKERHDR::uMagic (Kelly Link). */
+#if ARCH_BITS == 64
+# define RTMEMTRACKERHDR_MAGIC UINT64_C(0x1907691919690719)
+#else
+# define RTMEMTRACKERHDR_MAGIC UINT32_C(0x19690719)
+#endif
+/** Magic number used when reallocated. */
+#if ARCH_BITS == 64
+# define RTMEMTRACKERHDR_MAGIC_REALLOC UINT64_C(0x0000691919690000)
+#else
+# define RTMEMTRACKERHDR_MAGIC_REALLOC UINT32_C(0x19690000)
+#endif
+/** Magic number used when freed. */
+#define RTMEMTRACKERHDR_MAGIC_FREE (~RTMEMTRACKERHDR_MAGIC)
+
+
+/**
+ * Initializes the allocation header and links it to the relevant tag.
+ *
+ * @returns Pointer to the user data part.
+ * @param pv The header + user data block. This must be at
+ * least @a cb + sizeof(RTMEMTRACKERHDR).
+ * @param cbUser The user data size (bytes).
+ * @param pszTag The tag string.
+ * @param pvCaller The return address.
+ * @param enmMethod The method that the user called.
+ */
+RTDECL(void *) RTMemTrackerHdrAlloc(void *pv, size_t cbUser, const char *pszTag, void *pvCaller, RTMEMTRACKERMETHOD enmMethod);
+
+/**
+ * Prepares for a realloc, i.e. invalidates the header.
+ *
+ * @returns Pointer to the user data part.
+ * @param pvOldUser Pointer to the old user data.
+ * @param cbOldUser The size of the old user data, 0 if not
+ * known.
+ * @param pszTag The tag string.
+ * @param pvCaller The return address.
+ */
+RTDECL(void *) RTMemTrackerHdrReallocPrep(void *pvOldUser, size_t cbOldUser, const char *pszTag, void *pvCaller);
+
+/**
+ * Initializes the allocation header and links it to the relevant tag.
+ *
+ * @returns Pointer to the user data part.
+ * @param pvNew The new header + user data block. This must be
+ * at least @a cb + sizeof(RTMEMTRACKERHDR). If
+ * this is NULL, we assume the realloc() call
+ * failed.
+ * @param cbNewUser The user data size (bytes).
+ * @param pvOldUser Pointer to the old user data. This is only
+ * valid on failure of course and used to bail out
+ * in that case. Should not be NULL.
+ * @param pszTag The tag string.
+ * @param pvCaller The return address.
+ */
+RTDECL(void *) RTMemTrackerHdrReallocDone(void *pvNew, size_t cbNewUser, void *pvOldUser, const char *pszTag, void *pvCaller);
+
+
+/**
+ * Do the accounting on free.
+ *
+ * @returns @a pv.
+ * @param pvUser Pointer to the user data.
+ * @param cbUser The size of the user data, 0 if not known.
+ * @param pszTag The tag string.
+ * @param pvCaller The return address.
+ * @param enmMethod The method that the user called.
+ */
+RTDECL(void *) RTMemTrackerHdrFree(void *pvUser, size_t cbUser, const char *pszTag, void *pvCaller, RTMEMTRACKERMETHOD enmMethod);
+
+
+/**
+ * Dumps all the allocations and tag statistics to the log.
+ */
+RTDECL(void) RTMemTrackerDumpAllToLog(void);
+
+/**
+ * Dumps all the allocations and tag statistics to the release log.
+ */
+RTDECL(void) RTMemTrackerDumpAllToLogRel(void);
+
+/**
+ * Dumps all the allocations and tag statistics to standard out.
+ */
+RTDECL(void) RTMemTrackerDumpAllToStdOut(void);
+
+/**
+ * Dumps all the allocations and tag statistics to standard err.
+ */
+RTDECL(void) RTMemTrackerDumpAllToStdErr(void);
+
+/**
+ * Dumps all the allocations and tag statistics to the specified filename.
+ */
+RTDECL(void) RTMemTrackerDumpAllToFile(const char *pszFilename);
+
+
+/**
+ * Dumps all the tag statistics to the log.
+ *
+ * @param fVerbose Whether to print all the stats or just the ones
+ * relevant to hunting leaks.
+ */
+RTDECL(void) RTMemTrackerDumpStatsToLog(bool fVerbose);
+
+/**
+ * Dumps all the tag statistics to the release log.
+ *
+ * @param fVerbose Whether to print all the stats or just the ones
+ * relevant to hunting leaks.
+ */
+RTDECL(void) RTMemTrackerDumpStatsToLogRel(bool fVerbose);
+
+/**
+ * Dumps all the tag statistics to standard out.
+ *
+ * @param fVerbose Whether to print all the stats or just the ones
+ * relevant to hunting leaks.
+ */
+RTDECL(void) RTMemTrackerDumpStatsToStdOut(bool fVerbose);
+
+/**
+ * Dumps all the tag statistics to standard err.
+ *
+ * @param fVerbose Whether to print all the stats or just the ones
+ * relevant to hunting leaks.
+ */
+RTDECL(void) RTMemTrackerDumpStatsToStdErr(bool fVerbose);
+
+/**
+ * Dumps all the tag statistics to the specified filename.
+ *
+ * @param fVerbose Whether to print all the stats or just the ones
+ * relevant to hunting leaks.
+ * @param pszFilename The name of the file to dump to.
+ */
+RTDECL(void) RTMemTrackerDumpStatsToFile(bool fVerbose, const char *pszFilename);
+
+
+
+/** @} */
+
+RT_C_DECLS_END
+
+#endif /* !IPRT_INCLUDED_memtracker_h */
+