This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
Latest Version Dependencies status unknown Test status unknown Test coverage unknown
Project Description

caffi is the Channel Access Foreign Function Interface. It uses CFFI to call EPICS channel access library.

This package provides direct low level interface to channel access, alike the C API.

Note: cffi commit 9fe2a9e contains an important fix to the frequent hangup on Windows 64bit Python 3. That means until cffi 1.11 is released, one should patch manually.

Install

EPICS dynamic libraries have been shipped with the package for Windows, Linux and macOS. But if the environment variables EPICS_BASE and EPICS_HOST_ARCH are set on macOS and Linux, those libraries under path ${EPICS_BASE}/lib/${EPICS_HOST_ARCH} will be used.

Either use pip,

$ pip install caffi

or checkout source code from the git repository,

$ git clone https://github.com/CaChannel/caffi.git
$ cd caffi
$ python setup.py install

Package

RPM

The SPEC file python-caffi.spec is included. Get the source tarball either from PyPI or create it by python setup.py sdist, and run:

$ rpmbuild -ta caffi-1.0.0.tar.gz

The binary and source RPM will be created. The package name is python-caffi.

Anaconda

The recipe is included.:

$ conda build conda-recipe

Documents

Latest documents are hosted at Read the Dcos.

Example

import caffi.ca as ca

status = ca.create_context()
assert status == ca.ECA.NORMAL

status, chid = ca.create_channel('catest')
assert status == ca.ECA.NORMAL

status = ca.pend_io(3)
assert status == ca.ECA.NORMAL

status = ca.put(chid, 123)
status = ca.flush_io()

status, value = ca.get(chid)
assert status == ca.ECA.NORMAL

status = ca.pend_io(3)
assert status == ca.ECA.NORMAL

assert value.get() == 123
Release History

Release History

1.0.0

This version

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1.0.0rc1

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1.0.0b3

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1.0b2

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0.99

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0.9

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
caffi-1.0.0-py2.py3-none-any.whl (3.1 MB) Copy SHA256 Checksum SHA256 py2.py3 Wheel Apr 6, 2017
caffi-1.0.0.tar.gz (3.1 MB) Copy SHA256 Checksum SHA256 Source Apr 6, 2017

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