tflite::MMAPAllocation

#include <allocation.h>

Note that not all platforms support MMAP-based allocation.

Summary

Use IsSupported() to check.

Inheritance

Inherits from: tflite::Allocation

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Constructors and Destructors

| | --- | | MMAPAllocation(const char *filename, ErrorReporter *error_reporter)

Loads and maps the provided file to a memory region. | | MMAPAllocation(int fd, ErrorReporter *error_reporter)

Maps the provided file descriptor to a memory region. | | MMAPAllocation(int fd, size_t offset, size_t length, ErrorReporter *error_reporter)

Maps the provided file descriptor, with the given offset and length (both in bytes), to a memory region. | | ~MMAPAllocation()
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Protected attributes

| | --- | | buffer_size_bytes_ = 0 | size_t | | mmap_fd_ = -1 | int | | mmapped_buffer_ | const void * | | offset_in_buffer_ = 0 | size_t | | offset_of_buffer_in_file_ = 0 | size_t |

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Public functions

| | --- | | base() const override | virtual const void *

Base pointer of this allocation. | | bytes() const override | virtual size_t

Size in bytes of the allocation. | | fd() const | int | | mmapped_buffer() const | const void * | | mmapped_buffer_offset_in_file() const | size_t | | mmapped_buffer_size() const | size_t | | valid() const override | virtual bool

Whether the allocation is valid. |

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Public static functions

| | --- | | IsSupported() | bool |

Protected attributes

buffer_size_bytes_

size_t buffer_size_bytes_ = 0

mmap_fd_

int mmap_fd_ = -1

mmapped_buffer_

const void * mmapped_buffer_

offset_in_buffer_

size_t offset_in_buffer_ = 0

offset_of_buffer_in_file_

size_t offset_of_buffer_in_file_ = 0

Public functions

MMAPAllocation

MMAPAllocation(
  const char *filename,[ErrorReporter](/lite/api_docs/cc/class/tflite/error-reporter.html#classtflite_1_1_error_reporter)*error_reporter
)

Loads and maps the provided file to a memory region.

MMAPAllocation

MMAPAllocation(
  int fd,[ErrorReporter](/lite/api_docs/cc/class/tflite/error-reporter.html#classtflite_1_1_error_reporter)*error_reporter
)

Maps the provided file descriptor to a memory region.

Note: The provided file descriptor will be dup'ed for usage; the caller retains ownership of the provided descriptor and should close accordingly.

MMAPAllocation

MMAPAllocation(
  int fd,
  size_t offset,
  size_t length,[ErrorReporter](/lite/api_docs/cc/class/tflite/error-reporter.html#classtflite_1_1_error_reporter)*error_reporter
)

Maps the provided file descriptor, with the given offset and length (both in bytes), to a memory region.

Note: The provided file descriptor will be dup'ed for usage; the caller retains ownership of the provided descriptor and should close accordingly.

base

virtual const void * base() const override

Base pointer of this allocation.

bytes

virtual size_t bytes() const override

Size in bytes of the allocation.

fd

int fd() const

mmapped_buffer

const void * mmapped_buffer() const

mmapped_buffer_offset_in_file

size_t mmapped_buffer_offset_in_file() const

mmapped_buffer_size

size_t mmapped_buffer_size() const

valid

virtual bool valid() const override

Whether the allocation is valid.

~MMAPAllocation

~MMAPAllocation() override

Public static functions

IsSupported

bool IsSupported()