class unordered_map

template <typename Key, typename T, int BUCKETSLOG2 = 2, typename Map = std::unordered_map<Key, T>>

class unordered_map

Defined at line 53 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

Limited concurrent unordered_map that supports internally-synchronized

insert/erase/access. Splits locking across N buckets and uses shared_mutex

for read/write locking. Iterators are not supported. The following

operations are supported:

insert_or_assign: Insert a new element or update an existing element.

insert: Insert a new element and return whether it was inserted.

erase: Remove an element.

contains: Returns true if the key is in the map.

find: Returns != end() if found, value is in ret->second.

pop: Erases and returns the erased value if found.

find/end: find returns a vaguely iterator-like type that can be compared to

end and can use iter->second to retrieve the reference. This is to ease porting

for existing code that combines the existence check and lookup in a single

operation (and thus a single lock). i.e.:

auto iter = map.find(key);

if (iter != map.end()) {

T t = iter->second;

...

snapshot: Return an array of elements (key, value pairs) that satisfy an optional

predicate. This can be used as a substitute for iterators in exceptional cases.

Public Methods

template <typename... Args>
void insert_or_assign (const Key & key, Args &&... args)

Defined at line 62 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

template <typename... Args>
bool insert (const Key & key, Args &&... args)

Defined at line 69 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

size_t erase (const Key & key)

returns size_type

Defined at line 77 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

bool contains (const Key & key)

Defined at line 83 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

FindResult end ()

find()/end() return a FindResult containing a copy of the value. For end(),

return a default value.

Defined at line 114 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

FindResult cend ()

Defined at line 115 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

FindResult find (const Key & key)

Defined at line 117 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

FindResult pop (const Key & key)

Defined at line 131 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

std::vector<std::pair<const Key, T>> snapshot (std::function<bool (T)> f)

Defined at line 147 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

void clear ()

Defined at line 160 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

size_t size ()

Defined at line 167 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

bool empty ()

Defined at line 176 of file ../../third_party/Vulkan-Utility-Libraries/src/include/vulkan/utility/vk_concurrent_unordered_map.hpp

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