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## Karline: made compatible with CFunc
DLLfunc <- function (func, times, y,
parms, dllname, initfunc=dllname,
rpar=NULL, ipar=NULL, nout=0, outnames=NULL,
forcings=NULL, initforc = NULL, fcontrol=NULL) {
## check the input
if (!is.numeric(y))
stop("`y' must be numeric")
n <- length(y)
if (! is.null(times)&&!is.numeric(times))
stop("`times' must be NULL or numeric")
if (! is.null(outnames)) if (length(outnames) != nout)
stop("length outnames should be = nout")
if (is.list(func)) {
if (!is.null(dllname) & "dllname" %in% names(func))
stop("If 'func' is a list that contains dllname, argument 'dllname' should be NULL")
if (!is.null(initfunc) & "initfunc" %in% names(func))
stop("If 'func' is a list that contains initfunc, argument 'initfunc' should be NULL")
if (!is.null(initforc) & "initforc" %in% names(func))
stop("If 'func' is a list that contains initforc, argument 'initforc' should be NULL")
if (!is.null(func$initfunc)) initfunc <- func$initfunc
if (!is.null(func$initforc)) initforc <- func$initforc
if (!is.null(func$dllname)) dllname <- func$dllname
func <- func$func
}
## is there an initialiser? - initialiser has the same name as the dll file
ModelInit <- NULL
Outinit <- NULL
flist <- list(fmat=0,tmat=0,imat=0,ModelForc=NULL)
Ynames <- attr(y, "names")
if (! inherits(func, "CFunc"))
if (is.null(dllname) || !is.character(dllname))
stop("`dllname' must be a name referring to a dll")
if (! is.null(initfunc)) {
if (inherits(initfunc, "CFunc"))
ModelInit <- body(initfunc)[[2]]
else if (is.loaded(initfunc, PACKAGE = dllname,
type = "") || is.loaded(initfunc, PACKAGE = dllname,
type = "Fortran"))
{ModelInit <- getNativeSymbolInfo(initfunc, PACKAGE = dllname)$address
} else if (initfunc != dllname && ! is.null(initfunc))
stop(paste("cannot integrate: initfunc not loaded ",initfunc))
}
if (is.null(initfunc)) initfunc <- NA
if (! is.null(forcings))
flist <- checkforcings(forcings,times,dllname,initforc,TRUE,fcontrol)
## the function
if (inherits(func, "CFunc"))
Func <- body(func)[[2]]
else if (!is.character(func))
stop("`func' must be a *name* referring to a function in a dll or of class CFunc")
else if (is.loaded(func, PACKAGE = dllname)) {
Func <- getNativeSymbolInfo(func, PACKAGE = dllname)$address
}
else
stop(paste("cannot run DLLfunc: dyn function not loaded: ",func))
dy <- rep(0,n)
storage.mode(y) <- storage.mode(dy) <- "double"
# out <- .Call("call_DLL", y, dy, as.double(times[1]), Func, ModelInit, #Outinit,
# as.double(parms),as.integer(nout),
# as.double(rpar),as.integer(ipar), 1L,
# flist, PACKAGE = "deSolve")
out <- .Call("call_DLL", y, dy, as.double(times[1]), Func, ModelInit, #Outinit,
parms, as.integer(nout),
as.double(rpar),as.integer(ipar), 1L,
flist, PACKAGE = "deSolve")
vout <- if (nout>0)
out[(n + 1):(n + nout)]
else NA
out <- list(dy = out[1:n], var = vout)
if (!is.null(Ynames)) names(out$dy) <-Ynames
if (! is.null(outnames)) names(out$var) <- outnames
return(out) # a list with the rate of change (dy) and output variables (var)
}
DLLres <- function (res, times, y, dy, parms,
dllname, initfunc=dllname,
rpar=NULL, ipar=NULL, nout=0, outnames=NULL,
forcings=NULL, initforc = NULL, fcontrol=NULL) {
## check the input
if (!is.numeric(y))
stop("`y' must be numeric")
if (!is.numeric(dy))
stop("`dy' must be numeric")
n <- length(y)
if (length(dy) != n)
stop("`dy' and 'y' muxt hve the same length")
if (! is.null(times)&&!is.numeric(times))
stop("`time' must be NULL or numeric")
if (! is.null(outnames)) if (length(outnames) != nout)
stop("length outnames should be = nout")
if (is.list(res)) {
if (!is.null(dllname) & "dllname" %in% names(res))
stop("If 'res' is a list that contains dllname, argument 'dllname' should be NULL")
if (!is.null(initfunc) & "initfunc" %in% names(res))
stop("If 'res' is a list that contains initfunc, argument 'initfunc' should be NULL")
if (!is.null(initforc) & "initforc" %in% names(res))
stop("If 'res' is a list that contains initforc, argument 'initforc' should be NULL")
dllname <- res$dllname
initfunc <- res$initfunc
initforc <- res$initforc
res <- res$res
}
## is there an initialiser? - initialiser has the same name as the dll file
ModelInit <- NULL
Outinit<- NULL
flist<-list(fmat=0,tmat=0,imat=0,ModelForc=NULL)
Ynames <- attr(y, "names")
if (!inherits(res, "CFunc"))
if(is.null(dllname)|| !is.character(dllname))
stop("`dllname' must be a name referring to a dll")
if (! is.null(initfunc)){
if (inherits(initfunc, "CFunc"))
ModelInit <- body(initfunc)[[2]]
else if (is.loaded(initfunc, PACKAGE = dllname,
type = "") || is.loaded(initfunc, PACKAGE = dllname,
type = "Fortran"))
{ModelInit <- getNativeSymbolInfo(initfunc, PACKAGE = dllname)$address
} else if (initfunc != dllname && ! is.null(initfunc))
stop(paste("cannot integrate: initfunc not loaded ",initfunc))
}
if (is.null(initfunc)) initfunc <- NA
if (! is.null(forcings))
flist <- checkforcings(forcings,times,dllname,initforc,TRUE,fcontrol)
## the function
if (inherits(res, "CFunc"))
Res <- body(res)[[2]]
else if (!is.character(res))
stop("`res' must be a *name* referring to a function in a dll")
else if (is.loaded(res, PACKAGE = dllname)) {
Res <- getNativeSymbolInfo(res, PACKAGE = dllname)$address
} else stop(paste("cannot run DLLres: res function not loaded: ",res))
storage.mode(y) <- storage.mode(dy) <- "double"
# out <- .Call("call_DLL", y, dy, as.double(times[1]), Res, ModelInit, #Outinit,
# as.double(parms),as.integer(nout),
# as.double(rpar),as.integer(ipar), 2L,
# flist, PACKAGE = "deSolve")
out <- .Call("call_DLL", y, dy, as.double(times[1]), Res, ModelInit, #Outinit,
parms, as.integer(nout),
as.double(rpar), as.integer(ipar), 2L,
flist, PACKAGE = "deSolve")
vout <- if (nout>0)
out[(n + 1):(n + nout)]
else NA
out <- list(delta = out[1:n], var = vout)
if (!is.null(Ynames)) names(out$delta) <-Ynames
if (! is.null(outnames)) names(out$var) <- outnames
return(out) # a list with the residual and output variables (var)
}
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