Function AllocateSample

engine/profiler/src/basic/profiler_basic.cpp:367–412

///////////////////////////////////////////////////////////////////////////////////////////////

static Sample* AllocateSample(ThreadData* td, uint32_t name_hash)
{
    Sample* parent = td->m_CurrentSample;

    // Aggregate samples:
    //      If there already is a child with this name, use that
    Sample* sample = parent->m_FirstChild;
    while (sample)
    {
        if (sample->m_NameHash == name_hash)
        {
            break;
        }
        sample = sample->m_Sibling;
    }

    if (!sample)
    {
        sample = AllocateNewSample(td);
        if (!sample)
        {
            return 0;
        }
        memset(sample, 0, sizeof(Sample));

        sample->m_NameHash = name_hash;

        // link the sample into the tree
        Sample* parent = td->m_CurrentSample;
        sample->m_Parent = parent;
        if (parent->m_FirstChild == 0)
        {
            parent->m_FirstChild = sample;
            parent->m_LastChild = sample;
        }
        else
        {
            parent->m_LastChild->m_Sibling = sample;
            parent->m_LastChild = sample;
        }
    }

    sample->m_CallCount++;
    td->m_CurrentSample = sample;
    return sample;
}

namespace dmProfiler
{