similar to: Repost: (apologies for HTML post) A question about multiple(?) out of order ReleaseObject

Apologies, I am resending this because my emails seem to go in HTML form. (I haven't as yet figured gmail web interface) Hello, This is a question that probably reveals my lack of understanding. In a C function (call it cfunc), i created a SEXP, called S, and then called R_PreserveObject on S. I returned the SEXP to the calling R function (call it rfunc). Note, I didn't call

Hello, This is a question that probably reveals my lack of understanding. In a C function (call it cfunc), i created a SEXP, called S, and then called R_PreserveObject on S. I returned the SEXP to the calling R function (call it rfunc). Note, I didn't call R_ReleaseObject on S. v <- .Call("cfunc") So, are the following statements correct 1. S is 'doubly' protected

Hello. This is my first post to the list, so first I'd like to thank everybody for making and mantaining such a great product as R. I'm writting a native binding to R from Dolphin Smalltalk. I've followed up the examples of the documentation showing how to run R embedded, and I got it partially working. However, I have a problem with the reference handling of the R objects.

Hello, We are currently making lots of changes to Rcpp (see the open Rcpp mailing list if interested [1] in the details). We are now using [2] R_PreserveObject and R_ReleaseObject to manage garbage collection instead of the PROTECT/UNPROTECT dance. This seems to work well, but I was wondering if there was documentation about it. In particular, if we preserve the same SEXP twice (or more),

[Disclaimer: what is below reflects my understanding from reading the R source, others will correct where deemed necessary] On 1/2/10 12:00 PM, r-devel-request at r-project.org wrote: > > Hello, > > We are currently making lots of changes to Rcpp (see the open Rcpp > mailing list if interested [1] in the details). > > We are now using [2] R_PreserveObject and R_ReleaseObject

Hello, I've been using R embedded in PL/R (R procedural language handler for PostgreSQL, http://www.joeconway.com/plr/) very successfully for several months now. A sincere "thank you" goes to the R development team for such a great product. I have a question I'm hoping someone here can help me with. In order to get the required functionality out of PL/R, I've had to

Hi! We?ve recently come across an example where a package (minqa) creates an Rcpp Function object in a static variable. This causes R_ReleaseObject to be called by the destructor at a very late point in time - as part of the system exit function: static Function cf("c"); I?m wondering if that is considered to be ?safe?? Is the R engine supposed to stay in a state where calls to API

Calling R_ReleaseObject in a C++ destructor is not reliable - it can be bypassed by a non-local return, such as an error. Generally in R one cannot use C++ destructors reliably for anything that the R runtime wouldn't do on its own in case of a non-local return. A destructor that calls just UNPROTECT, in a way that balances out the protection stack (e.g. Rcpp Shield), is safe because R

Dear list, While trying to identify the root of a problem I am having with garbage collected variables, I have come across the following oddity: depending on whether --verbose is set or not, I obtain different results. I have made a small standalone example to demonstrate it. The example is very artificial, but I had a hard time reproducing reliably the problem. So when I do: (the content of

Here's an update of my rawConnection() implementation. In addition to providing a raw version of textConnection(), this fixes two existing issues with textConnection(): one is that the current textConnection() implementation carries around unprotected SEXP pointers, the other is a performance problem due to prolific copying of the output buffer as output is accumulated line by line. This new

>>> On Nov 28, 2009, at 7:50 PM, Guillaume Yziquel wrote: >>> >>> FWIW what I think you should be really looking at is >>> R_PreserveObject/R_ReleaseObject. > > OK. Thanks. >>> I would suggest looking at the many other R embeddings in other >>> languages that already exist since I don't think you approach is >>> very viable

Hello, I submit a patch for review that implements code coverage tracing in the R interpreter. It records the lines that are actually executed and their associated frequency for which srcref information is available. I perfectly understands that this patch will not make its way inside R as it is, that they are many concerns of stability, compatibility, maintenance and so on. I would like to have

From: Joerg Roedel <jroedel at suse.de> The #VC handler needs special entry code because: 1. It runs on an IST stack 2. It needs to be able to handle nested #VC exceptions To make this work the entry code is implemented to pretend it doesn't use an IST stack. When entered from user-mode or early SYSCALL entry path it switches to the task stack, if entered from kernel-mode it tries

Bugs item #20346, was opened at 2008-05-24 12:02 You can respond by visiting: http://rubyforge.org/tracker/?func=detail&atid=218&aid=20346&group_id=35 Category: Compile/build Group: None Status: Open Resolution: None Priority: 3 Submitted By: Nobody (None) Assigned to: Nobody (None) Summary: can not run wxruby-1.9.7 under ruby1.9.0 in linux Initial Comment: superman minimal # ruby

Hi -- I am trying to get ruby 1.9 to run on my Windows Vista Ultimate computer with and Intel 32 bit processor and all OS updates applied. I installed ruby 1.9 on October 23, 2009 using the zip file (ruby-1.9.1-p129-i386-mswin32.zip) and the instructions located at: http://blog.orangecabin.com/2009/05/install-ruby-1-9-on-windows-using-zip-binary/. I was able to run several simple scripts. So far

Hi, I am trying to figure a way to allocate a string SEXP so that gc() won't ever collect it. Here is a little bit of a background. Suppose I want to write a .Call-callable function that upon each call returns the same value, say mkChar("foo"): SEXP getFoo() { return mkChar("foo"); } The above implementation doesn't take advantage of the fact that

hello everyone, original app: rails 3.1.1 ruby 1.9.2p180 (2011-02-18 revision 30909) [i686-linux] I try to host my app into speedyrails using capistrano. I host my sample application and running. I just get only one error like my assets were not precompiled. then i solve that by adding "load ''deploy/assets''" this code in my deploy receipt. and my

Martin, Well, thanks for jumping in! We need all the help we can get ;) I changed the execute bit as you suggested and recompiled, no luck, still the same error message. Below is the output you wanted me to look at, its a bit beyond me so I include both a brief grep summary and then the whole enchilada. I do note that my output is different from yours, but I'm not sure how to interpret. I

Martin, Well, thanks for jumping in! We need all the help we can get ;) I changed the execute bit as you suggested and recompiled, no luck, still the same error message. Below is the output you wanted me to look at, its a bit beyond me so I include both a brief grep summary and then the whole enchilada. I do note that my output is different from yours, but I'm not sure how to interpret. I

On Mon, Aug 24, 2020 at 10:54:43AM +0200, Joerg Roedel wrote: > @@ -446,6 +448,82 @@ _ASM_NOKPROBE(\asmsym) > SYM_CODE_END(\asmsym) > .endm > ifdeffery pls... > +/** > + * idtentry_vc - Macro to generate entry stub for #VC > + * @vector: Vector number > + * @asmsym: ASM symbol for the entry point > + * @cfunc: C function to be called > + * > + * The macro