Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 247 insertions, 0 deletions

diff --git a/include/iprt/memtracker.h b/include/iprt/memtracker.h
new file mode 100644
index 00000000..42c9962c
--- /dev/null
+++ b/include/iprt/memtracker.h
@@ -0,0 +1,247 @@
+/** @file
+ * IPRT - Memory Tracker.
+ */
+
+/*
+ * Copyright (C) 2010-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+#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 */
+