site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com The top source code includes source for the library libtop. -- Terry Hi Terry, There are library routines for getting the type of information that lsof normally provides from the kernel; Thank you, Manish -----Original Message----- From: Terry Lambert [mailto:tlambert@apple.com] Sent: Thursday, May 15, 2008 4:53 AM To: Manish Chaturvedi Cc: darwin-kernel@lists.apple.com Subject: Re: Problem in reading struct file. Hi All, I am Implementing my own lsof on Mac10.3.0 to get the list of open files for process ( i.e. file descriptors, file name). Below is the code snippet describing the problem. There is no such thing as "struct file" in 10.3 (Tiger); there are several legacy forward declarations of the struct for use by pointers (which are not used), but there is no such thing. You are probably getting this error because it's the error you get any time you make a forward declaration of a structure with no implementation behind it, and then try to declare an instance of it. You'd get the same from attempting to compile: struct Manish; struct Manish ml; int main(int ac. char *av[]) { return 0; } There are library routines for getting the type of information that lsof normally provides from the kernel; they are considered unstable, however, and we may change them with every release, but they are less unstable than raw structure declarations. It's actually more stable to popen lsof itself. For the information that's there that lsof can't get via library routines, there's dtrace. -- Terry _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... In Mac OS X that isn't so old we didn't even have Intel machines when it was born (i.e. later than 10.3, which is very old), there are SPI in libSystem that don't have headers except as published as Darwin source code. Also note that in later versions of Mac OS X, there is no libkvm, and / dev/mem and /dev/kmem do not exist by default anyway. You are really plumbing the depths of ancient history here, are you absolutely certain your performance requires you to do this yourself? On May 14, 2008, at 10:54 PM, Manish Chaturvedi <manish_chaturvedi@persistent.co.in
wrote: Thanks for your valuable reply!
I am more incline to have my own lsof implementation(using API's of by using lsof source code) Where are these API in Mac10.3 ? because I am ok to patch my code in every release. It will be helpful to have APIs like libproc.h for Mac10.5.x to get the same information. Since they are unstable and undocumented (and may be hidden)I cannot get it after googling, Please do let me know if there are such API to get the Kernel information like list of open file descriptors and file name etc. On May 13, 2008, at 2:29 AM, Manish Chaturvedi wrote: This email sent to site_archiver@lists.apple.com