summaryrefslogtreecommitdiff
path: root/indra/llcommon/lleventcoro.cpp
blob: 81cc33fbbaca018c6f26100e230075579f037e9e (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
135
136
137
138
139
140
141
142
143
144
145
146
/**
 * @file   lleventcoro.cpp
 * @author Nat Goodspeed
 * @date   2009-04-29
 * @brief  Implementation for lleventcoro.
 * 
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * 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
 * $/LicenseInfo$
 */

// Precompiled header
#include "linden_common.h"
// associated header
#include "lleventcoro.h"
// STL headers
#include <map>
// std headers
// external library headers
// other Linden headers
#include "llsdserialize.h"
#include "llerror.h"
#include "llcoros.h"

std::string LLEventDetail::listenerNameForCoroImpl(const void* self_id)
{
    // First, if this coroutine was launched by LLCoros::launch(), find that name.
    std::string name(LLCoros::instance().getNameByID(self_id));
    if (! name.empty())
    {
        return name;
    }
    // Apparently this coroutine wasn't launched by LLCoros::launch(). Check
    // whether we have a memo for this self_id.
    typedef std::map<const void*, std::string> MapType;
    static MapType memo;
    MapType::const_iterator found = memo.find(self_id);
    if (found != memo.end())
    {
        // this coroutine instance has called us before, reuse same name
        return found->second;
    }
    // this is the first time we've been called for this coroutine instance
    name = LLEventPump::inventName("coro");
    memo[self_id] = name;
    LL_INFOS("LLEventCoro") << "listenerNameForCoroImpl(" << self_id << "): inventing coro name '"
                            << name << "'" << LL_ENDL;
    return name;
}

void LLEventDetail::storeToLLSDPath(LLSD& dest, const LLSD& rawPath, const LLSD& value)
{
    if (rawPath.isUndefined())
    {
        // no-op case
        return;
    }

    // Arrange to treat rawPath uniformly as an array. If it's not already an
    // array, store it as the only entry in one.
    LLSD path;
    if (rawPath.isArray())
    {
        path = rawPath;
    }
    else
    {
        path.append(rawPath);
    }

    // Need to indicate a current destination -- but that current destination
    // needs to change as we step through the path array. Where normally we'd
    // use an LLSD& to capture a subscripted LLSD lvalue, this time we must
    // instead use a pointer -- since it must be reassigned.
    LLSD* pdest = &dest;

    // Now loop through that array
    for (LLSD::Integer i = 0; i < path.size(); ++i)
    {
        if (path[i].isString())
        {
            // *pdest is an LLSD map
            pdest = &((*pdest)[path[i].asString()]);
        }
        else if (path[i].isInteger())
        {
            // *pdest is an LLSD array
            pdest = &((*pdest)[path[i].asInteger()]);
        }
        else
        {
            // What do we do with Real or Array or Map or ...?
            // As it's a coder error -- not a user error -- rub the coder's
            // face in it so it gets fixed.
            LL_ERRS("lleventcoro") << "storeToLLSDPath(" << dest << ", " << rawPath << ", " << value
                                   << "): path[" << i << "] bad type " << path[i].type() << LL_ENDL;
        }
    }

    // Here *pdest is where we should store value.
    *pdest = value;
}

LLSD errorException(const LLEventWithID& result, const std::string& desc)
{
    // If the result arrived on the error pump (pump 1), instead of
    // returning it, deliver it via exception.
    if (result.second)
    {
        throw LLErrorEvent(desc, result.first);
    }
    // That way, our caller knows a simple return must be from the reply
    // pump (pump 0).
    return result.first;
}

LLSD errorLog(const LLEventWithID& result, const std::string& desc)
{
    // If the result arrived on the error pump (pump 1), log it as a fatal
    // error.
    if (result.second)
    {
        LL_ERRS("errorLog") << desc << ":" << std::endl;
        LLSDSerialize::toPrettyXML(result.first, LL_CONT);
        LL_CONT << LL_ENDL;
    }
    // A simple return must therefore be from the reply pump (pump 0).
    return result.first;
}