On Fri, Dec 26, 2008 at 10:34 AM, shark huang <[email protected]> wrote:
> Hi: > Thanks. > > On Fri, Dec 26, 2008 at 12:05 PM, ajit mote <[email protected]>wrote: > >> >> >> On Thu, Dec 25, 2008 at 7:39 AM, shark huang <[email protected]> wrote: >> >>> How can I know who own the semaphore at one moment? >>> >> >> ipcs -s >> > 'cat /proc/sysvipc/sem' should be same. > > >> >> >> >>> On Thu, Dec 25, 2008 at 12:26 AM, shark huang <[email protected]>wrote: >>> >>>> Hi: is the value of cuid and uid always same? Looks like they only are >>>> given a same value in function "ipc_addid", which means the value was >>>> initialized when the semaphore is created. >>>> >>> When performing the first task, the process which calls *semget* becomes the owner/creator, and Remember, ownership can be changed, but the creating process always remains the creator. So values of uid and cuid may not be always same. >>>> br >>>> shark >>>> >>>> Note: Please send mail to mailing list, this way everybody will be reading the thread > >>> >> >> >> -- >> Thanks & Regards, >> Ajit Subhash Mote >> >> > -- Thanks & Regards, Ajit Subhash Mote
