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| Date | Tue, 18 Mar 2014 18:01:59 -0700 |
| Subject | Re: Controlling buffer alignment in file.read() |
| From | Dan Stromberg <drsalists@gmail.com> |
| To | "Haralanov, Mitko" <mitko.haralanov@intel.com> |
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On Tue, Mar 18, 2014 at 1:23 PM, Haralanov, Mitko <mitko.haralanov@intel.com> wrote: > Hi all, > > I am using Python to read from a binary device file which requires that all read sizes are in 8byte multiples and the user's buffer is 8byte aligned. > > I am currently using a file object and the file.read() method. However, the issue is that the file.read() method allocates the buffer passed to C function under the covers and, therefore, the alignment is arbitrary. > > Is there a way that I can get file.read() to use an 8byte aligned buffer? This is a lot like what my odirect project does: http://stromberg.dnsalias.org/~strombrg/odirect/ It does buffer alignment, because O_DIRECT requires buffer alignment. It's a Python-callable SWIG wrapper for some C code.
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Re: Controlling buffer alignment in file.read() Dan Stromberg <drsalists@gmail.com> - 2014-03-18 18:01 -0700
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