MemoryResource.cpp

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#include <algorithm>
 
#include "zserio/pmr/MemoryResource.h"
#include "zserio/pmr/NewDeleteResource.h"
 
namespace zserio
{
namespace pmr
{
 
namespace
{
 
MemoryResource*& getCurrentDefaultResource()
{
    // static variable is in the function to support proper early initialization (before main)
    static MemoryResource* defaultResource = getNewDeleteResource();
    return defaultResource;
}
 
} // namespace
 
MemoryResource* getDefaultResource() noexcept
{
    return getCurrentDefaultResource();
}
 
MemoryResource* setDefaultResource(MemoryResource* resource) noexcept
{
    MemoryResource* defaultResource = (resource != nullptr) ? resource : getNewDeleteResource();
    std::swap(defaultResource, getCurrentDefaultResource());
    return defaultResource;
}
 
} // namespace pmr
} // namespace zserio