greenplumn CMemoryVisitorPrint 代码
文件路径：/src/backend/gporca/libgpos/src/memory/CMemoryVisitorPrint.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2009-2010 Greenplum Inc.
/ Copyright (C) 2011 EMC Corp.
/
/ @filename:
/ CMemoryVisitorPrint.cpp
/
/ @doc:
/ Implementation of memory object visitor for printing debug information
/ for all allocated objects inside a memory pool.
/
/ @owner:
/
/ @test:
/
/---------------------------------------------------------------------------
#include "gpos/memory/CMemoryVisitorPrint.h"
#include "gpos/assert.h"
#include "gpos/common/CStackDescriptor.h"
#include "gpos/string/CWStringStatic.h"
#include "gpos/task/ITask.h"
#include "gpos/types.h"
#include "gpos/utils.h"
using namespace gpos;
/---------------------------------------------------------------------------
/ @function:
/ CMemoryVisitorPrint::CMemoryVisitorPrint
/
/ @doc:
/ Ctor.
/
/---------------------------------------------------------------------------
CMemoryVisitorPrint::CMemoryVisitorPrint(IOstream &os) : m_visits(0), m_os(os)
{
}
/---------------------------------------------------------------------------
/ @function:
/ CMemoryVisitorPrint::~CMemoryVisitorPrint
/
/ @doc:
/ Dtor.
/
/---------------------------------------------------------------------------
CMemoryVisitorPrint::~CMemoryVisitorPrint() = default;
/---------------------------------------------------------------------------
/ @function:
/ CMemoryVisitorPrint::FVisit
/
/ @doc:
/ Prints the live object information to the output stream.
/
/---------------------------------------------------------------------------
void
CMemoryVisitorPrint::Visit(void *user_addr, SIZE_T user_size, void *total_addr,
SIZE_T total_size, const CHAR *alloc_filename,
const ULONG alloc_line, ULLONG alloc_seq_number,
CStackDescriptor *stack_desc)
{
m_os << COstream::EsmDec << "allocation sequence number "
<< alloc_seq_number << ","
<< " total size " << (ULONG) total_size << " bytes,"
<< " base address " << total_addr << ","
<< " user size " << (ULONG) user_size << " bytes,"
<< " user address " << user_addr << ","
<< " allocated by " << alloc_filename << ":" << alloc_line
<< std::endl;
ITask *task = ITask::Self();
if (nullptr != task)
{
if (nullptr != stack_desc &&
task->IsTraceSet(EtracePrintMemoryLeakStackTrace))
{
m_os << "Stack trace: " << std::endl;
stack_desc->AppendTrace(m_os, 8 /*ulDepth*/);
}
if (task->IsTraceSet(EtracePrintMemoryLeakDump))
{
m_os << "Memory dump: " << std::endl;
gpos::HexDump(m_os, total_addr, total_size);
}
}
++m_visits;
}
/ EOF