fd/ops: Add readAllFixed()

This is similar to readAll in that it guarantees to read the file all
the way to EOF, but it allows you to provide a fixed buffer space to
store the file contents. This is useful if you know the bounds of the
file and don't mind preallocating space for them.

This is generally the preferred candidate for reading all of a file, as
you should know the bounds of the data you would like to read if you are
reading the entire thing.

Change-Id: I72a9e2fb7ee84d4e37963c8dcdff3e9e351e2339
Signed-off-by: William A. Kennington III <wak@google.com>
3 files changed
tree: 18dcaf1de91dbc0e73e3e1f1c4e3f4667afbfe51
  1. example/
  2. include/
  3. include-dl/
  4. include-fd/
  5. include-gtest/
  6. include-uring/
  7. src/
  8. subprojects/
  9. test/
  10. .clang-format
  11. .clang-tidy
  12. .clang-tidy-ignore
  13. .gitignore
  14. .lcovrc
  15. LICENSE
  16. meson.build
  17. meson.options
  18. OWNERS
  19. README.md
README.md

stdplus

stdplus is a c++ project containing commonly used classes and functions for the Linux platform. Note the goals of this project are to implement only the minimum set of features needed by the OpenBMC project and other users. You may find the included set of functions currently quite sparse.

This project provides the following primitives:

  • A movable and copyable RAII helper wrapper which is used for wrapping c-native types that have custom destruction or copy reference logic.
  • Functions for trivially configuring signals without having to do the normal signal set operations from libc
  • C-Style Error Handler that wrap c-style functions which return errnos and negative error values into functions that throw c++ exceptions.
  • String Utilities that focus on providing helpful wrappers like efficient string append and concatenation.

Dependencies

Test cases require google{test,mock}, valgrind, and lcov. It also requires the Meson Build System which can be installed following the instructions at mesonbuild.com.

Building

For a standard release build, you want something like:

meson setup -Dexamples=false -Dtests=disabled builddir
ninja -C builddir
ninja -C builddir install

For a test / debug build, a typical configuration is

meson setup -Dtests=enabled builddir
meson test -C builddir