added partial decoding of serial communication to main.cpp

[Qualot]

modified from read(...FULL LENGH) to read(...PARTIAL) to read serial data smoothly.

[k-okada]

please separate PR into two parts, one is just to change coding style, and the others is to change code logic.

[Qualot]

Thanks, Okada-sensei,

Actually, I do not distinguish coding style and logic.
Could you tell me that or show me an example or reference?

Thank you,

                                    Shinsuke

2014-12-20 1:37 GMT+09:00 Kei Okada notifications@github.com:

please separate PR into two parts, one is just to change coding style, and
the others is to change code logic.

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中島慎介 Nakashima Shinsuke

東京大学 情報理工学系研究科 知能機械情報学専攻
情報システム工学研究室
Graduate School of Information Science and Technology
The University of Tokyo
Mechano-Informatics
JSK Laboratory

7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 Japan
Tel: 03-5841-7416 / Fax: 03-5841-6285
Email: snakashima@jsk.imi.i.u-tokyo.ac.jp

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[k-okada]

+#include <stdio.h>
- #include  <stdio.h>

in this change, you just changed the number of white space, and there are no change in logically.

[130s]

@Qualot For the case like you who's attentive to coding style, I recommend to separate commits like in the following order; (1st commit) edit the style, (2nd and later) add the actual change you'd like.

[Qualot]

how about this pull request?

[130s]

+1

[k-okada]

I think you still have diffs which is not related to the problem

[k-okada]

ok, i created new PR #7 for typo and #8, #9 for read data
#8 and #9 is just a different implementation, so please choose one which you like, I haven't tested on real hardware, so please confirm this solves you problem > @Qualot

[130s]

I confirmed both #8 and #9 "runs" with the device.
Since I still don't understand the problem this PR tries to address, I have no idea to pick either PR. @Qualot ?

(If I'm asked, I can only follow the general rule of thumb to avoid using goto so pick #9 that keeps away from goto. But I'm no C expert).

[k-okada]

this is very common case when reading fixed byte from input stream, the read stream can take a number of bytes to read in its arguments, but it did not grantee that the read reads the given bytes, it reads possible bytes and returns the byte.
read() attempts to read up to count bytes from file descriptor fd into the buffer starting at buf.

[130s]

Please choose either #8 or #9. I've tested with the real device, both ran but had no idea how I can verify the accuracy.

[k-okada]

This is just a code style difference, please choose either you prefer.

◉ Kei Okada

On Mon, Mar 23, 2015 at 12:24 AM, Isaac I.Y. Saito <notifications@github.com

wrote:

Please choose either #8 #8
or #9 #9. I've tested with
the real device, both ran but had no idea how I can verify the accuracy.

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