VulkanMemoryAllocator/docs/html/thread_safety.html

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<li>The library has no global state, so separate <code>VmaAllocator</code> objects can be used independently.</li>
<li>By default, all calls to functions that take <code>VmaAllocator</code> as first parameter are safe to call from multiple threads simultaneously because they are synchronized internally when needed.</li>
<li>When the allocator is created with <code>VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT</code> flag, calls to functions that take such <code>VmaAllocator</code> object must be synchronized externally.</li>
<li>Access to a <code>VmaAllocation</code> object must be externally synchronized. For example, you must not call <a class="el" href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b" title="Returns current information about specified allocation. ">vmaGetAllocationInfo()</a> and <a class="el" href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069" title="Maps memory represented by given allocation and returns pointer to it. ">vmaMapMemory()</a> from different threads at the same time if you pass the same <code>VmaAllocation</code> object to these functions. </li>
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			`<li>The library has no global state, so separate <code>VmaAllocator</code> objects can be used independently.</li>`
			`<li>By default, all calls to functions that take <code>VmaAllocator</code> as first parameter are safe to call from multiple threads simultaneously because they are synchronized internally when needed.</li>`
			`<li>When the allocator is created with <code>VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT</code> flag, calls to functions that take such <code>VmaAllocator</code> object must be synchronized externally.</li>`
Version 2.0.0-alpha.5. Major change in memory mapping - now it's internally reference-counted. Renamed flag VMA_ALLOCATION_CREATE_PERSISTENT_MAP_BIT to VMA_ALLOCATION_CREATE_MAPPED_BIT. See documentation of vmaMapMemory(). 2017-11-08 11:52:05 +00:00			<li>Access to a <code>VmaAllocation</code> object must be externally synchronized. For example, you must not call <a class="el" href="vk__mem__alloc_8h.html#a86dd08aba8633bfa4ad0df2e76481d8b" title="Returns current information about specified allocation. ">vmaGetAllocationInfo()</a> and <a class="el" href="vk__mem__alloc_8h.html#ad5bd1243512d099706de88168992f069" title="Maps memory represented by given allocation and returns pointer to it. ">vmaMapMemory()</a> from different threads at the same time if you pass the same <code>VmaAllocation</code> object to these functions. </li>
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