Mercurial > pub > dyncall > bindings
annotate ruby/rbdc/README.txt @ 54:918dab7a6606
- added callback support (comes with some bigger refactoring)
- allow CPython's Py{CObject,Capsule} to be used as 'p'ointers
| author | Tassilo Philipp |
|---|---|
| date | Tue, 02 Feb 2021 20:42:02 +0100 |
| parents | b6114d9a9a98 |
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| rev | line source |
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| 0 | 1 dyncall ruby bindings |
| 25 | 2 Copyright 2007-2018 Tassilo Philipp |
| 0 | 3 |
| 4 | |
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5 BUILD/INSTALLATION |
| 17 | 6 ================== |
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7 |
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8 1) The extension isn't built here, but its code along with dyncall's source is bundled |
| 10 | 9 in a .gem file to then be built and installed on the target platform. |
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10 So, you need dyncall's full source code to be included. Unfortunately, the .gemspec isn't |
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11 flexible enough to pull from different paths, so building the .gem file requires dyncall |
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12 to be found next to rbdc.c and extconf.rb. This means either copy dyncall's base directory |
| 26 | 13 to ./dyncall or create a symlink ./dyncall, that points to it. |
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15 2) Then, build this gem with: |
| 17 | 16 |
| 17 gem build rbdc.gemspec | |
| 0 | 18 |
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19 3) On the target platform, install the gem with: |
| 17 | 20 |
| 21 gem install rbdc-*.gem | |
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23 |
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24 API |
| 17 | 25 === |
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26 |
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27 l = Dyncall::ExtLib.new |
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28 l.load(libpath) |
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29 l.syms_init(libpath) |
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30 l.syms_count |
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31 l.syms_each { |sym_name| ... } |
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32 l.exists?(:symbolname) |
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33 l.call(:symbolname, sigstring, ...) |
| 0 | 34 |
| 35 | |
| 36 SIGNATURE FORMAT | |
| 17 | 37 ================ |
| 0 | 38 |
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39 format: "xxxxx)y" |
| 0 | 40 |
| 17 | 41 x is positional parameter-type charcode, y is result-type charcode |
| 0 | 42 |
| 17 | 43 SIG | FROM RUBY | C/C++ | TO RUBY |
| 44 ----+-----------------------------------------+--------------------+----------------------------------- | |
| 45 'v' | | void | NilClass | |
| 46 'B' | TrueClass, FalseClass, NilClass, Fixnum | bool | TrueClass, FalseClass | |
| 47 'c' | Fixnum | char | Fixnum | |
| 48 'C' | Fixnum | unsigned char | Fixnum | |
| 49 's' | Fixnum | short | Fixnum | |
| 50 'S' | Fixnum | unsigned short | Fixnum | |
| 51 'i' | Fixnum | int | Fixnum | |
| 52 'I' | Fixnum | unsigned int | Fixnum | |
| 53 'j' | Fixnum | long | Fixnum | |
| 54 'J' | Fixnum | unsigned long | Fixnum | |
| 55 'l' | Fixnum | long long | Fixnum | |
| 56 'L' | Fixnum | unsigned long long | Fixnum | |
| 57 'f' | Float | float | Float | |
| 58 'd' | Float | double | Float | |
| 59 'p' | String (other ruby types? @@@) | void* | unsupported at the moment @@@ | |
| 60 'Z' | String | void* | String | |
| 0 | 61 |
| 62 | |
| 17 | 63 TODO |
| 64 ==== | |
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65 |
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- shdc: more sig chars for call conv mode selection
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66 - signature chars used to indicate calling conventions are not supported yet! |
| 17 | 67 - C pointer -> ruby... array? |
| 68 - callback support | |
| 69 |