summaryrefslogtreecommitdiff
path: root/indra/llcommon/llallocator.cpp
blob: 87654b5b97dc7b6bbab4c65aa25355f19cb41d40 (plain)
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
/** 
 * @file llallocator.cpp
 * @brief Implementation of the LLAllocator class.
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "linden_common.h"
#include "llallocator.h"

#if (LL_USE_TCMALLOC && LL_USE_HEAP_PROFILER)

#include "google/heap-profiler.h"
#include "google/commandlineflags_public.h"

DECLARE_bool(heap_profile_use_stack_trace);
//DECLARE_double(tcmalloc_release_rate);

// static
void LLAllocator::pushMemType(S32 type)
{
    if(isProfiling())
    {
    	PushMemType(type);
    }
}

// static
S32 LLAllocator::popMemType()
{
    if (isProfiling())
    {
    	return PopMemType();
    }
    else
    {
        return -1;
    }
}

void LLAllocator::setProfilingEnabled(bool should_enable)
{
    // NULL disables dumping to disk
    static char const * const PREFIX = NULL;
    if(should_enable)
    {
		HeapProfilerSetUseStackTrace(false);
        HeapProfilerStart(PREFIX);
    }
    else
    {
        HeapProfilerStop();
    }
}

// static
bool LLAllocator::isProfiling()
{
    return IsHeapProfilerRunning();
}

std::string LLAllocator::getRawProfile()
{
    // *TODO - fix google-perftools to accept an buffer to avoid this
    // malloc-copy-free cycle.
    char * buffer = GetHeapProfile();
    std::string ret = buffer;
    free(buffer);
    return ret;
}

#else // LL_USE_TCMALLOC

//
// stub implementations for when tcmalloc is disabled
//

// static
void LLAllocator::pushMemType(S32 type)
{
}

// static
S32 LLAllocator::popMemType()
{
    return -1;
}

void LLAllocator::setProfilingEnabled(bool should_enable)
{
}

// static
bool LLAllocator::isProfiling()
{
    return false;
}

std::string LLAllocator::getRawProfile()
{
    return std::string();
}

#endif // LL_USE_TCMALLOC

LLAllocatorHeapProfile const & LLAllocator::getProfile()
{
    mProf.mLines.clear();

    // *TODO - avoid making all these extra copies of things...
    std::string prof_text = getRawProfile();
    //std::cout << prof_text << std::endl;
    mProf.parse(prof_text);
    return mProf;
}