Thank you (and Frank) for your responses. I was unable to build the source on CentOS 5 (because of missing PulseAudio), but did get it to build on Ubuntu 8.04, running as a vbox guest.
I have not spent a lot of time looking at the source, but have looked at the SDKRef.pdf. My immediate problems are 1. I was unable to find any functions that would allow a program to be launched within a guest from the host. Have I missed something, or is this not supported in the existing API. 2. The existing shared memory API requires the guest to share a "guest physical" memory block with the host. Is my understanding correct, that this will not allow guest to guest sharing of a memory block? I failed to state this requirement in my original question; but I need to be able to create a shared memory block, that is shared by the host and multiple guests. Thank you -----Original Message----- From: Sander van Leeuwen <[EMAIL PROTECTED]> Reply-To: VirtualBox developer's list <[email protected]> To: VirtualBox developer's list <[email protected]> Subject: Re: [vbox-dev] Shared memory API like mmap for fast IPC Date: Wed, 08 Oct 2008 13:22:52 +0200 There is unfortunately no documentation on HGCM right now. HGCM (which stands for host-guest communication manager) consists of two components: - guest client (e.g. clipboard: src\VBox\Additions\winnt\VBoxTray\VBoxClipboard.cpp - host server (e.g. clipboard: src\VBox\HostServices\SharedClipboard) The host server must register itself in the HGCM name space. The supported host services are currently hard coded in src\VBox\Main\VMMDevInterface.cpp (VMMDev::drvConstruct). We could make this more generic if required, but it's enough to start with. The guest client talks to the VBox guest additions driver to connect to the host service. Once connected they can talk to each other. Communication can be done using copying or sharing guest physical addresses. Hope that helps to get you started, Sander Nev wrote: > The following, is a post I made on the VirtualBox user forum. And > "sandervl" from Sun Microsystems, suggest I redirect my question here. > > I have an application that requires very fast communications between the > guest application and host application. Host is Linux, Centos 5, Guest > is XP. Current implementation is based on VMware workstation 6.0 using > VMCI shared memory interface, but this interface has been removed in > workstation 6.5 and replaced with a socket interface, which is way too > slow. I have searched, but unable to find any such interface in > VirtualBox. Is it possible to share memory with an existing interface, > that I have missed? > > sandervl suggested the HGCM interface is appropriate (with some > coding?), I have been unable to find any documentation on this > interface. Is it documented, or do I need to refer to the source? > > I have downloaded the source, but have not yet been able to satisfy the > Prerequisites. Current issue is missing PulseAudio. > > Any help would be appreciated > > Thank you > > > > _______________________________________________ > vbox-dev mailing list > [email protected] > http://vbox.innotek.de/mailman/listinfo/vbox-dev > _______________________________________________ vbox-dev mailing list [email protected] http://vbox.innotek.de/mailman/listinfo/vbox-dev
