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fuzzy dependency ordering should be started, starting, stopped whilst checking runlevel, bootlevel, any at each stage.

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This commit is contained in:
Roy Marples 2008-06-10 15:19:46 +00:00
parent 9b1cb4e246
commit bf8f0da921
1 changed files with 26 additions and 33 deletions
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59
src/librc/librc-depend.c
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@ -271,7 +271,7 @@ get_provided(const RC_DEPINFO *depinfo, const char *runlevel, int options)
return providers;
}
/* If we're strict or startng, then only use what we have in our
/* If we're strict or starting, then only use what we have in our
* runlevel and bootlevel. If we starting then check cold-plugged too. */
if (options & RC_DEP_STRICT || options & RC_DEP_START) {
TAILQ_FOREACH(service, dt->services, entries)
@ -285,12 +285,15 @@ get_provided(const RC_DEPINFO *depinfo, const char *runlevel, int options)
}
/* OK, we're not strict or there were no services in our runlevel.
This is now where the logic gets a little fuzzy :)
If there is >1 running service then we return NULL.
We do this so we don't hang around waiting for inactive services and
our need has already been satisfied as it's not strict.
We apply this to our runlevel, coldplugged services, then bootlevel
and finally any running.*/
* This is now where the logic gets a little fuzzy :)
* If there is >1 running service then we return NULL.
* We do this so we don't hang around waiting for inactive services and
* our need has already been satisfied as it's not strict.
* We apply this to these states in order:-
* started, starting | stopping | inactive, stopped
* Our sub preference in each of these is in order:-
* runlevel, coldplugged, bootlevel, any
*/
#define DO \
if (TAILQ_FIRST(providers)) { \
if (TAILQ_NEXT(TAILQ_FIRST(providers), entries)) { \
@ -300,45 +303,35 @@ get_provided(const RC_DEPINFO *depinfo, const char *runlevel, int options)
return providers; \
}
/* Anything in the runlevel has to come first */
/* Anything running has to come first */
if (get_provided1(runlevel, providers, dt, runlevel, false, RC_SERVICE_STARTED))
{ DO }
if (get_provided1(runlevel, providers, dt, runlevel, false, RC_SERVICE_STARTING))
return providers;
if (get_provided1(runlevel, providers, dt, runlevel, false, RC_SERVICE_STOPPED))
return providers;
/* Check coldplugged services */
if (get_provided1(runlevel, providers, dt, NULL, true, RC_SERVICE_STARTED))
{ DO }
if (get_provided1(runlevel, providers, dt, NULL, true, RC_SERVICE_STARTING))
return providers;
/* Check bootlevel if we're not in it */
if (bootlevel && strcmp(runlevel, bootlevel) != 0)
{
if (get_provided1(runlevel, providers, dt, bootlevel, false, RC_SERVICE_STARTED))
{ DO }
if (get_provided1(runlevel, providers, dt, bootlevel, false, RC_SERVICE_STARTING))
return providers;
}
/* Check coldplugged services */
if (get_provided1(runlevel, providers, dt, NULL, true, RC_SERVICE_STOPPED))
if (bootlevel && strcmp(runlevel, bootlevel) != 0 &&
get_provided1(runlevel, providers, dt, bootlevel, false, RC_SERVICE_STARTED))
{ DO }
/* Check manually started */
if (get_provided1(runlevel, providers, dt, NULL, false, RC_SERVICE_STARTED))
{ DO }
/* Check starting services */
if (get_provided1(runlevel, providers, dt, runlevel, false, RC_SERVICE_STARTING))
return providers;
if (get_provided1(runlevel, providers, dt, NULL, true, RC_SERVICE_STARTING))
return providers;
if (bootlevel && strcmp(runlevel, bootlevel) != 0 &&
get_provided1(runlevel, providers, dt, bootlevel, false, RC_SERVICE_STARTING))
return providers;
if (get_provided1(runlevel, providers, dt, NULL, false, RC_SERVICE_STARTING))
return providers;
/* Nothing started then. OK, lets get the stopped services */
if (get_provided1(runlevel, providers, dt, runlevel, false, RC_SERVICE_STOPPED))
return providers;
if (bootlevel && (strcmp(runlevel, bootlevel) != 0)
&& (get_provided1(runlevel, providers, dt, bootlevel, false, RC_SERVICE_STOPPED)))
if (get_provided1(runlevel, providers, dt, NULL, true, RC_SERVICE_STOPPED))
{ DO }
if (bootlevel && (strcmp(runlevel, bootlevel) != 0) &&
get_provided1(runlevel, providers, dt, bootlevel, false, RC_SERVICE_STOPPED))
return providers;
/* Still nothing? OK, list all services */