Ok, thanks for the answers. On 10 nov 2010, at 13:23, Michel Fortin wrote:
> Le 2010-11-10 à 4:55, Jacob Carlborg a écrit : > >> I've been thinking about this and I'm trying to think of everything to get >> this right the first time so I have a couple of questions: >> >> * I though it might be a good idea to add support for running module >> constructors for dynamically loaded libraries (i.e. libraries loaded with >> dlopen). Then I was think I need to add the new module infos to the array of >> existing ones and when/if the library is unloaded remove the module infos >> added by the library. Now for the question: is an array still a good data >> structure for this or should we use an associative array or something else? > > The Objective-C runtime uses a linked list. I think the expectation is that > you won't have thousands of libraries open and that you won't unload them > often. But going with an AA doesn't look like a bad idea to me. > > >> * If we change to an associative array could the image received in the >> callback function registered by _dyld_register_func_for_add_image be used as >> the key in the associative array? > > That's what the Objective-C runtime does (it stores them in a linked list and > compare linearly all the entries in the unload callback). > > >> * This is a question about the _dyld_register_func_for_add_image function. >> Can I assume that all images sent to the registered callback functions are >> of the same architecture that I'm currently compiling? For example, I'm >> running a universal binary and it's running the 32bit part of the binary. >> Then I'm loading a universal dynamic library, it will only load the 32bit >> part since that's the part I'm running? > > I think you can. I see nowhere in the Objective-C runtime where this is > checked, and it'd just be quite strange if the dynamic linker did that. > > >> * What to name the function, where to put it and when to call it? > > It's called 'map_image' and 'unmap_image' in the Objective-C runtime. But I > don't know how they should be named in Druntime. > > > -- > Michel Fortin > [email protected] > http://michelf.com/ > > > > _______________________________________________ > phobos mailing list > [email protected] > http://lists.puremagic.com/mailman/listinfo/phobos -- /Jacob Carlborg _______________________________________________ phobos mailing list [email protected] http://lists.puremagic.com/mailman/listinfo/phobos
