Python Programming Language :: Getting mount stats for filesystems


	Getting mount stats for filesystems Hi, I am trying to find a way to figure out whether a certain remote filesystem is mounted using tcp vs. udp in Python. I've looked at the statvfs call and module but they don't give me anything useful (the F_FLAGS field for both a tcp and a udp filesystem is the same. I could, of course, get the output of mount and parse that but I would prefer something more elegant. Thanks for your help! -- Mitko Haralanov m@qlogic.com Senior Software Engineer 650.934.8064 System Interconnect Group http://www.qlogic.com ========================================== Remember, UNIX spelled backwards is XINU. -- Mt. Mitko Haralanov schrieb: > Hi, I am trying to find a way to figure out whether a certain remote > filesystem is mounted using tcp vs. udp in Python. I've looked at the > statvfs call and module but they don't give me anything useful (the > F_FLAGS field for both a tcp and a udp filesystem is the same. > I could, of course, get the output of mount and parse that but I would > prefer something more elegant. I'm not quite sure what you want to achieve. You are on machine B, and you want to find out whether a remote file system (on machine A) is mounted remotely (say, from machine C)? How do you answer that question with mount(8)? Also, what is a tcp filesystem? Regards, Martin On Tue, 05 Jun 2007 09:19:08 +0200 "Martin v. Lwis" <mar@v.loewis.de> wrote: > I'm not quite sure what you want to achieve. You are on machine B, > and you want to find out whether a remote file system (on machine A) > is mounted remotely (say, from machine C)? Ok, let me try to explain: I am on machine A, which has a NFS mounted filesystem hosted on machine B. All I need to find out is whether the NFS filesystem is mounted using tcp or udp. -- Mitko Haralanov m@qlogic.com Senior Software Engineer 650.934.8064 System Interconnect Group http://www.qlogic.com ========================================== Paul: If rubbin' frozen dirt in your crotch is wrong, hey, I don't wanna be right. > I am on machine A, which has a NFS mounted filesystem hosted on machine > B. All I need to find out is whether the NFS filesystem is mounted > using tcp or udp. Ah, ok. I recommend to parse /proc/mounts. Regards, Martin On Tue, 05 Jun 2007 20:14:01 +0200 "Martin v. Lwis" <mar@v.loewis.de> wrote: > Ah, ok. I recommend to parse /proc/mounts. I was looking for something that reminded me less of Perl and more of C but haven't been able to find such a method. -- Mitko Haralanov m@qlogic.com Senior Software Engineer 650.934.8064 System Interconnect Group http://www.qlogic.com ========================================== ... A booming voice says, "Wrong, cretin!", and you notice that you have turned into a pile of dust. Mitko Haralanov schrieb: > On Tue, 05 Jun 2007 20:14:01 +0200 > "Martin v. Lwis" <mar@v.loewis.de> wrote: >> Ah, ok. I recommend to parse /proc/mounts. > I was looking for something that reminded me less of Perl and more of C > but haven't been able to find such a method. You could try to invoke getmntent(3). I'm not aware of a Python wrapper for it, so you either try to write one yourself in C, or use ctypes to write it in Python. Regards, Martin On Tue, 05 Jun 2007 21:32:21 +0200 "Martin v. Lwis" <mar@v.loewis.de> wrote: > You could try to invoke getmntent(3). I'm not aware of a Python wrapper > for it, so you either try to write one yourself in C, or use ctypes to > write it in Python. I am looking at ctypes and it might do what I need but I can't figure out a way to convert a Python File object to a C FILE pointer (which is the needed argument for getmntent). Any ideas? -- Mitko Haralanov m@qlogic.com Senior Software Engineer 650.934.8064 System Interconnect Group http://www.qlogic.com ========================================== Fry: That clover helped my rat-fink brother steal my dream of going into space. Now I'll never get there. Leela: You went there this morning for donuts. > I am looking at ctypes and it might do what I need but I can't figure > out a way to convert a Python File object to a C FILE pointer (which is > the needed argument for getmntent). > Any ideas? I think you are supposed to pass the pointer to getmntent that you obtained from setmntent (likely asking for read-only access). Regards, Martin