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1 # Package: rdyncall
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2 # File: R/dyncall.R
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3 # Description: dyncall bindings for R
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4
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5 # ----------------------------------------------------------------------------
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6 # call vm alloc/free (internal)
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7
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8 new.callvm <- function(
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9 callmode = c(
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10 "cdecl",
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11 "stdcall",
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12 "thiscall","thiscall.gcc","thiscall.msvc",
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13 "fastcall","fastcall.gcc","fastcall.msvc")
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14 , size = 4096 )
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15 {
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16 callmode <- match.arg(callmode)
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17 x <- .Call("new_callvm", callmode, as.integer(size), PACKAGE="rdyncall")
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18 reg.finalizer(x, free.callvm)
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19 return(x)
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20 }
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21
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22 free.callvm <- function(x)
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23 {
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24 .Call("free_callvm", x, PACKAGE="rdyncall")
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25 }
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26
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27 # ----------------------------------------------------------------------------
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28 # CallVM's for calling conventions - will be initialized .onLoad
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29
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30 callvm.default <- callvm.cdecl <- NULL
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31 callvm.stdcall <- NULL
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32 callvm.thiscall <- NULL
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33 callvm.thiscall.gcc <- NULL
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34 callvm.thiscall.msvc <- NULL
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35 callvm.fastcall <- NULL
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36 callvm.fastcall.gcc <- NULL
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37 callvm.fastcall.msvc <- NULL
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38
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39 # ----------------------------------------------------------------------------
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40 # public interface
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41
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42 .dyncall <- function( address, signature, ... , callmode = "default" )
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43 {
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44 callvm <- switch(callmode,
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45 default=callvm.default,
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46 cdecl=callvm.cdecl,
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47 stdcall=callvm.stdcall,
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48 thiscall=,thiscall.gcc=callvm.thiscall.gcc, thiscall.msvc=callvm.thiscall.msvc,
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49 fastcall=,fastcall.gcc=callvm.fastcall.gcc, fastcall.msvc=callvm.fastcall.msvc)
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50 .External("dyncall", callvm, address, signature, ..., PACKAGE="rdyncall")
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51 }
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52
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53 .dyncall.cdecl <- function( address, signature, ... ) .External("dyncall", callvm.cdecl, address, signature, ..., PACKAGE="rdyncall")
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54 .dyncall.default <- function( address, signature, ... ) .External("dyncall", callvm.default, address, signature, ..., PACKAGE="rdyncall")
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55 .dyncall.stdcall <- function( address, signature, ... ) .External("dyncall", callvm.stdcall, address, signature, ..., PACKAGE="rdyncall")
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56 .dyncall.thiscall.gcc <- function( address, signature, ... ) .External("dyncall", callvm.thiscall.gcc, address, signature, ..., PACKAGE="rdyncall")
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57 .dyncall.thiscall.msvc <- function( address, signature, ... ) .External("dyncall", callvm.thiscall.msvc, address, signature, ..., PACKAGE="rdyncall")
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58 .dyncall.fastcall.gcc <- function( address, signature, ... ) .External("dyncall", callvm.fastcall.gcc, address, signature, ..., PACKAGE="rdyncall")
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59 .dyncall.fastcall.msvc <- function( address, signature, ... ) .External("dyncall", callvm.fastcall.msvc, address, signature, ..., PACKAGE="rdyncall")
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60
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61 .dyncall.thiscall <- .dyncall.thiscall.gcc
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62 .dyncall.fastcall <- .dyncall.fastcall.gcc
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63
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64 # ----------------------------------------------------------------------------
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65 # initialize callvm's on load
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66
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67 .onLoad <- function(libname,pkgname)
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68 {
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69 callvm.cdecl <<- new.callvm("cdecl")
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70 callvm.default <<- callvm.cdecl
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71 callvm.stdcall <<- new.callvm("stdcall")
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72 callvm.thiscall <<- new.callvm("thiscall")
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73 callvm.thiscall.gcc <<- new.callvm("thiscall.gcc")
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74 callvm.thiscall.msvc <<- new.callvm("thiscall.msvc")
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75 callvm.fastcall <<- new.callvm("fastcall")
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76 callvm.fastcall.gcc <<- new.callvm("fastcall.gcc")
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77 callvm.fastcall.msvc <<- new.callvm("fastcall.msvc")
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78 }
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