C Specification

The VkImportSemaphoreZirconHandleInfoFUCHSIA structure is defined as:

// Provided by VK_FUCHSIA_external_semaphore
typedef struct VkImportSemaphoreZirconHandleInfoFUCHSIA {
    VkStructureType                          sType;
    const void*                              pNext;
    VkSemaphore                              semaphore;
    VkSemaphoreImportFlags                   flags;
    VkExternalSemaphoreHandleTypeFlagBits    handleType;
    zx_handle_t                              zirconHandle;
} VkImportSemaphoreZirconHandleInfoFUCHSIA;


  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • semaphore is the semaphore into which the payload will be imported.

  • flags is a bitmask of VkSemaphoreImportFlagBits specifying additional parameters for the semaphore payload import operation.

  • handleType is a VkExternalSemaphoreHandleTypeFlagBits value specifying the type of zirconHandle.

  • zirconHandle is the external handle to import.


The handle types supported by handleType are:

Table 1. Handle Types Supported by VkImportSemaphoreZirconHandleInfoFUCHSIA
Handle Type Transference Permanence Supported




Valid Usage
Valid Usage (Implicit)
  • VUID-VkImportSemaphoreZirconHandleInfoFUCHSIA-sType-sType

  • VUID-VkImportSemaphoreZirconHandleInfoFUCHSIA-pNext-pNext
    pNext must be NULL

  • VUID-VkImportSemaphoreZirconHandleInfoFUCHSIA-semaphore-parameter
    semaphore must be a valid VkSemaphore handle

  • VUID-VkImportSemaphoreZirconHandleInfoFUCHSIA-flags-parameter
    flags must be a valid combination of VkSemaphoreImportFlagBits values

  • VUID-VkImportSemaphoreZirconHandleInfoFUCHSIA-handleType-parameter
    handleType must be a valid VkExternalSemaphoreHandleTypeFlagBits value

Host Synchronization
  • Host access to semaphore must be externally synchronized

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

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