Function Prototype
vkImportFenceFdKHR
Import a fence from a POSIX file descriptor
To import a fence payload from a POSIX file descriptor, call:
VkResult vkImportFenceFdKHR(
VkDevice device,
const VkImportFenceFdInfoKHR* pImportFenceFdInfo);
device
is the logical device that created the fence.pImportFenceFdInfo
is a pointer to a VkImportFenceFdInfoKHR structure specifying the fence and import parameters.
Importing a fence payload from a file descriptor transfers ownership of the file descriptor from the application to the Vulkan implementation. The application must not perform any operations on the file descriptor after a successful import.
Applications can import the same fence payload into multiple instances of Vulkan, into the same instance from which it was exported, and multiple times into a given Vulkan instance.
Valid Usage
VUID-vkImportFenceFdKHR-fence-01463
fence
must not be associated with any queue command that has not
yet completed execution on that queue
Valid Usage (Implicit)
VUID-vkImportFenceFdKHR-device-parameter
device
must be a valid VkDevice handle
VUID-vkImportFenceFdKHR-pImportFenceFdInfo-parameter
pImportFenceFdInfo
must be a valid pointer to a valid VkImportFenceFdInfoKHR structure