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annotate ruby/rbdc/README.txt @ 14:7752fcb107e7

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- erlang binding build fix, linker arg was at wrong place
author cslag
date Sat, 26 Mar 2016 16:09:04 +0100
parents 6493c9ed4b33
children 739c40f35a6a
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1 dyncall ruby bindings
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2 Copyright 2007-2016 Tassilo Philipp
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5 BUILD/INSTALLATION
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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
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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
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13 do ./dyncall or create a symlink ./dyncall, that points to it.
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14
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15 2) Then, build this gem with:
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16 gem build rbdc.gemspec
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18 3) On the target platform, install the gem with:
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19 gem install ../../../rbdc-*.gem
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22 API
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23 ---
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24
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25 l = Dyncall::ExtLib.new
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26 l.load(libpath)
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27 l.syms_init(libpath)
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28 l.syms_count
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29 l.syms_each { |sym_name| ... }
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30 l.exists?(:symbolname)
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31 l.call(:symbolname, sigstring, ...)
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34 SIGNATURE FORMAT
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35 ----------------
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37 format: "xxxxx)y"
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39 x is positional parameter-type charcode
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41 'B' C++: bool <- Ruby: TrueClass, FalseClass, NilClass, Fixnum
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42 'c' C: char <- Ruby: Fixnum
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43 'C' C: unsigned char <- Ruby: Fixnum
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44 's' C: short <- Ruby: Fixnum
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45 'S' C: unsigned short <- Ruby: Fixnum
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46 'i' C: int <- Ruby: Fixnum
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47 'I' C: unsigned int <- Ruby: Fixnum
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48 'j' C: long <- Ruby: Fixnum
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49 'J' C: unsigned long <- Ruby: Fixnum
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50 'l' C: long long <- Ruby: Fixnum
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51 'L' C: unsigned long long <- Ruby: Fixnum
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52 'f' C: float <- Ruby: Float
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53 'd' C: double <- Ruby: Float
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54 'p' C: void* <- Ruby: String (check if there are other pointer-convertible ruby types @@@)
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55 'Z' C: void* <- Ruby: String
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57 y is result-type charcode
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59 'v' C: void -> Ruby: NilClass
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60 'B' C: bool -> Ruby: TrueClass, FalseClass
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61 'c' C: char -> Ruby: Fixnum
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62 'C' C: unsigned char -> Ruby: Fixnum
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63 's' C: short -> Ruby: Fixnum
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64 'S' C: unsigned short -> Ruby: Fixnum
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65 'i' C: int -> Ruby: Fixnum
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66 'I' C: unsigned int -> Ruby: Fixnum
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67 'j' C: long -> Ruby: Fixnum
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68 'J' C: unsigned long -> Ruby: Fixnum
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69 'l' C: long long -> Ruby: Fixnum
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70 'L' C: unsigned long long -> Ruby: Fixnum
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71 'f' C: float -> Ruby: Float
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72 'd' C: double -> Ruby: Float
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73 'p' C: void* -> unsupported at the moment @@@
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74 'Z' C: void* -> Ruby: String
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77 -> Note that signature suffixes used to indicate calling
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78 -> conventions, are not supported yet! @@@
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