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linux_aio_bind: Python binding for Linux Kernel AIO
A low-level python binding module that matches the Linux kernel AIO system call.
If you are not using the ctypes module to develop high-level python modules directly, but you want to use AIO functionality in python, see High-level python wrapper.
What is Linux Kernel AIO?
In summary, it allows non-blocking and asynchronous use of blocking IO operations such as read(2) and write(2).
Related documents
It is different from POSIX AIO
The POSIX AIO APIs have the aio_ prefix, but the Linux Kernel AIO has the io_ prefix.
There is already a POSIX AIO API for asynchronous I/O, but Linux implements it in glibc, a user-space library, which is supposed to use multi-threading internally. So, as you can see from the experiment, it's much worse than using the blocking IO API.
Implementation & Structure
- ctypes module is used.
- It is defined to correspond
1:1with the C header of Linux AIO.- Implemented 100% of the functionality when using C.
- All the functions shown in the man page based on Linux man pages (4.16), and all the functions added in 4.20.3 source code, as far as I can find them.
- If you know how to use the ctypes module to operate on pointers, you can also build other types of wrappers based on this package.
- It uses
syscallfor invoking ABI and cffi for gathering different syscall number by architecture on module installation. - python stub (
pyifiles - for type hint) are included. - All error handling in the documentation (based on man-pages 4.16)
Example
Examples can be found in the code in the test directory.
Notes & Limits
- Obviously available only on Linux
- Because it is a wrapper, it brings the constraints of Linux.
- It can not be used for files used as a kernel interface. (e.g.
cgroup) - Sometimes it works as Blocking.
- There are some things that have been solved through development after posting.
- Some features are being added because they are still under development.
- There are also some features that are not supported when the Linux version is low
- You need to check Linux man pages (4.16) and its related API documentation
- Poll is 4.19 or higher, fsync and fdsync require 4.18 or higher kernel
- It can not be used for files used as a kernel interface. (e.g.
1 maintainer
Metadata
1 maintainer
Release files for linux-aio-bind 1.0.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| linux_aio_bind-1.0.0.tar.gz | 10.1 kB | Without provenance | Details |
Built distributions (wheels)
| File | Reset | |||
|---|---|---|---|---|
| linux_aio_bind-1.0.0-cp37-cp37m-manylinux1_x86_64.whl | CPython 3.7 | CPython 3.7 pymalloc | Linux glibc 2.5+ x86-64 | Details |
| linux_aio_bind-1.0.0-cp37-cp37m-manylinux1_i686.whl | CPython 3.7 | CPython 3.7 pymalloc | Linux glibc 2.5+ x86-32 | Details |
| linux_aio_bind-1.0.0-cp36-cp36m-manylinux1_x86_64.whl | CPython 3.6 | CPython 3.6 pymalloc | Linux glibc 2.5+ x86-64 | Details |
| linux_aio_bind-1.0.0-cp36-cp36m-manylinux1_i686.whl | CPython 3.6 | CPython 3.6 pymalloc | Linux glibc 2.5+ x86-32 | Details |
| linux_aio_bind-1.0.0-cp35-cp35m-manylinux1_x86_64.whl | CPython 3.5 | CPython 3.5 pymalloc | Linux glibc 2.5+ x86-64 | Details |
| linux_aio_bind-1.0.0-cp35-cp35m-manylinux1_i686.whl | CPython 3.5 | CPython 3.5 pymalloc | Linux glibc 2.5+ x86-32 | Details |
| linux_aio_bind-1.0.0-cp34-cp34m-manylinux1_x86_64.whl | CPython 3.4 | CPython 3.4 pymalloc | Linux glibc 2.5+ x86-64 | Details |
| linux_aio_bind-1.0.0-cp34-cp34m-manylinux1_i686.whl | CPython 3.4 | CPython 3.4 pymalloc | Linux glibc 2.5+ x86-32 | Details |
| linux_aio_bind-1.0.0-cp27-cp27m-manylinux1_x86_64.whl | CPython 2.7 | CPython 2.7 pymalloc | Linux glibc 2.5+ x86-64 | Details |
| linux_aio_bind-1.0.0-cp27-cp27m-manylinux1_i686.whl | CPython 2.7 | CPython 2.7 pymalloc | Linux glibc 2.5+ x86-32 | Details |
Total release size: 177.9 kB
Release files / linux_aio_bind-1.0.0.tar.gz
| Download URL | linux_aio_bind-1.0.0.tar.gz |
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| Size | 10.1 kB |
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Release files / linux_aio_bind-1.0.0-cp37-cp37m-manylinux1_x86_64.whl
| Download URL | linux_aio_bind-1.0.0-cp37-cp37m-manylinux1_x86_64.whl |
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| Size | 16.3 kB |
| Tags | CPython 3.7 CPython 3.7 pymalloc Linux glibc 2.5+ x86-64 |
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Release files / linux_aio_bind-1.0.0-cp37-cp37m-manylinux1_i686.whl
| Download URL | linux_aio_bind-1.0.0-cp37-cp37m-manylinux1_i686.whl |
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| Size | 16.2 kB |
| Tags | CPython 3.7 CPython 3.7 pymalloc Linux glibc 2.5+ x86-32 |
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Release files / linux_aio_bind-1.0.0-cp36-cp36m-manylinux1_x86_64.whl
| Download URL | linux_aio_bind-1.0.0-cp36-cp36m-manylinux1_x86_64.whl |
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| Size | 16.3 kB |
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Release files / linux_aio_bind-1.0.0-cp36-cp36m-manylinux1_i686.whl
| Download URL | linux_aio_bind-1.0.0-cp36-cp36m-manylinux1_i686.whl |
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| Size | 16.2 kB |
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Release files / linux_aio_bind-1.0.0-cp35-cp35m-manylinux1_x86_64.whl
| Download URL | linux_aio_bind-1.0.0-cp35-cp35m-manylinux1_x86_64.whl |
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| Size | 16.3 kB |
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Release files / linux_aio_bind-1.0.0-cp35-cp35m-manylinux1_i686.whl
| Download URL | linux_aio_bind-1.0.0-cp35-cp35m-manylinux1_i686.whl |
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| Size | 16.2 kB |
| Tags | CPython 3.5 CPython 3.5 pymalloc Linux glibc 2.5+ x86-32 |
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Release files / linux_aio_bind-1.0.0-cp34-cp34m-manylinux1_x86_64.whl
| Download URL | linux_aio_bind-1.0.0-cp34-cp34m-manylinux1_x86_64.whl |
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| Size | 16.3 kB |
| Tags | CPython 3.4 CPython 3.4 pymalloc Linux glibc 2.5+ x86-64 |
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Release files / linux_aio_bind-1.0.0-cp34-cp34m-manylinux1_i686.whl
| Download URL | linux_aio_bind-1.0.0-cp34-cp34m-manylinux1_i686.whl |
|---|---|
| Size | 16.2 kB |
| Tags | CPython 3.4 CPython 3.4 pymalloc Linux glibc 2.5+ x86-32 |
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Release files / linux_aio_bind-1.0.0-cp27-cp27m-manylinux1_x86_64.whl
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Release files / linux_aio_bind-1.0.0-cp27-cp27m-manylinux1_i686.whl
| Download URL | linux_aio_bind-1.0.0-cp27-cp27m-manylinux1_i686.whl |
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| Size | 18.7 kB |
| Tags | CPython 2.7 CPython 2.7 pymalloc Linux glibc 2.5+ x86-32 |
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