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annotate python/pydc/README.txt @ 19:5b51738793c6

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- layout restructuring
author cslag
date Wed, 30 Mar 2016 02:06:16 +0200
parents a40084782546
children 681db37a300c
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1 dyncall python bindings
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2 (C) 2007-2016 Daniel Adler
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3 Dec 4, 2007: initial
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4 Mar 22,2016: update to dyncall 0.9, includes breaking sig char changes
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7 BUILD/INSTALLATION
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8 ==================
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10 1) make sure dyncall is built and libraries/headers are in include paths or
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11 CFLAGS points to them, etc.
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13 2) Build and install this extension with:
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15 python setup.py install
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17 Building an egg isn't supported, currently.
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20 API
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21 ===
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23 libhandle = load(libpath)
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24 funcptr = find(libhandle, symbolname)
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25 call(funcptr, signature, ...)
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28 SIGNATURE FORMAT
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29 ================
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31 is a formated string
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33 format: "xxxxx)y"
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34
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35 x is positional parameter-type charcode, y is result-type charcode
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36
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37 SIG | FROM PYTHON | C/C++ | TO PYTHON
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38 ----+------------------------------------+--------------------+-----------------------------------
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39 'v' | | void |
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40 'B' | PyBool | bool | PyBool
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41 'c' | PyInt (range checked) | char | PyInt
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42 'C' | PyInt (range checked) | unsigned char | PyInt
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43 's' | PyInt (range checked) | short | PyInt
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44 'S' | PyInt (range checked) | unsigned short | PyInt
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45 'i' | PyInt | int | PyInt
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46 'I' | PyInt | unsigned int | PyInt
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47 'j' | PyLong | long | PyLong
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48 'J' | PyLong | unsigned long | PyLong
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49 'l' | PyLongLong | long long | PyLongLong
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50 'L' | PyLongLong | unsigned long long | PyLongLong
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51 'f' | PyFloat (cast to single precision) | float | PyFloat (cast to double precision)
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52 'd' | PyFloat | double | PyFloat
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53 'p' | PyCObject | void* | PyCObject encapsulating a void*
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54 'Z' | PyString | const char* | PyString
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57 TODO
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58 ====
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60 - support signature suffixes used to indicate calling conventions, are not supported yet!
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61 - not sure if returning 'p' is working, creating PyCObject, check and write test code
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64 BUGS
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65 ====
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67 * build on osx/ppc - link error i386 something... [MacPython 2.4]
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69 solution:
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70 installation of latest python for os x (MacPython 2.5)
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72 build log:
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74 python setup.py install
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75 running install
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76 running build
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77 running build_py
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78 creating build
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79 creating build/lib.macosx-10.3-fat-2.4
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80 copying pydc.py -> build/lib.macosx-10.3-fat-2.4
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81 running build_ext
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82 building 'pydcext' extension
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83 creating build/temp.macosx-10.3-fat-2.4
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84 gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -O3 -I../../../dyncall -I../../../dynload -I/Library/Frameworks/Python.framework/Versions/2.4/include/python2.4 -c pydcext.c -o build/temp.macosx-10.3-fat-2.4/pydcext.o
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85 gcc -arch i386 -arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g -bundle -undefined dynamic_lookup build/temp.macosx-10.3-fat-2.4/pydcext.o -L../../../dyncall -L../../../dynload -ldyncall_s -ldynload_s -lstdc++ -o build/lib.macosx-10.3-fat-2.4/pydcext.so
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86 /usr/bin/ld: for architecture i386
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87 /usr/bin/ld: warning ../../../dyncall/libdyncall_s.a archive's cputype (18, architecture ppc) does not match cputype (7) for specified -arch flag: i386 (can't load from it)
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88 /usr/bin/ld: warning ../../../dynload/libdynload_s.a archive's cputype (18, architecture ppc) does not match cputype (7) for specified -arch flag: i386 (can't load from it)
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89 running install_lib
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90 copying build/lib.macosx-10.3-fat-2.4/pydcext.so -> /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages
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