From: Mateusz_madi on 12 May 2010 07:57 On 12 Maj, 13:56, Mateusz_madi <madi.cz...(a)gmail.com> wrote: > On 12 Maj, 13:44, Ulrich Eckhardt <dooms...(a)knuut.de> wrote: > > > > > Mateusz_madi wrote: > > > Hi guys, i am wondering what is a diference between service and > > > process? > > > If you run a program, the running program is a process. If you dig further, > > a process has a memory space associated with it and at least one thread. > > Further, resources like e.g. open files are bound to a process. Note that > > the terms task and process are used interchangeably, with task being used a > > bit more often under Unix, I believe. > > > A service is a program that provides some service, like e.g. a timeserver, > > webserver etc. Note that under Unix, the term service isn't used as often, > > this is rather used in the MS Windows context. Under Unix, a service is > > rather called daemon. Common to them is that they don't have a user > > interface like e.g. a GUI or the standard input/output/error streams. > > Rather, they are controlled by IPC mechanisms like signals. > > > Uli > > So can i say that service is a "kind of" process witch , rather than > communicating with user communciates with other processes? And is running in background?
From: Ersek, Laszlo on 12 May 2010 12:21 On Wed, 12 May 2010, Rainer Weikusat wrote: > Mateusz_madi <madi.czadi(a)gmail.com> writes: >> Hi guys, i am wondering what is a diference between service and >> process?? > > -------- > #include <stdio.h> > > union discord { > unsigned char s[8]; > unsigned long long v; > }; > > static union discord service = { > .s = "service" > }; > > static union discord process = { > .s = "process" > }; > > int main(void) > { > printf("The answer is %llu\n", service.v - process.v); > return 0; > } > ------- > > [SCNR] Thanks ;D lacos
From: Chris Friesen on 12 May 2010 12:25 On 05/12/2010 05:57 AM, Mateusz_madi wrote: >> So can i say that service is a "kind of" process witch , rather than >> communicating with user communciates with other processes? > > And is running in background? Or started up on demand. Chris
From: rjw on 19 May 2010 20:52 On 2010-05-12, Chris Friesen <cbf123(a)mail.usask.ca> wrote: > On 05/12/2010 05:57 AM, Mateusz_madi wrote: >>> So can i say that service is a "kind of" process witch , rather than >>> communicating with user communciates with other processes? >> >> And is running in background? > > Or started up on demand. Or smells like home work? ~rjw
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