chiark / gitweb /
add minimal logging framework
[elogind.git] / manager.c
index a870db6cce69a89d5afaa242bf5c301e4871c4f3..a104e2f401c8689ec572558206ad37699a776020 100644 (file)
--- a/manager.c
+++ b/manager.c
@@ -8,7 +8,6 @@
 #include "hashmap.h"
 #include "macro.h"
 #include "strv.h"
-#include "load-fragment.h"
 
 Manager* manager_new(void) {
         Manager *m;
@@ -122,7 +121,7 @@ static int types_merge(JobType *a, JobType b) {
         return -EEXIST;
 }
 
-static void manager_merge_and_delete_prospective_job(Manager *m, Job *j, Job *other, JobType t) {
+static void transaction_merge_and_delete_job(Manager *m, Job *j, Job *other, JobType t) {
         JobDependency *l, *last;
 
         assert(j);
@@ -191,17 +190,17 @@ static int transaction_merge_jobs(Manager *m) {
 
                 while ((k = j->transaction_next)) {
                         if (j->linked) {
-                                manager_merge_and_delete_prospective_job(m, k, j, t);
+                                transaction_merge_and_delete_job(m, k, j, t);
                                 j = k;
                         } else
-                                manager_merge_and_delete_prospective_job(m, j, k, t);
+                                transaction_merge_and_delete_job(m, j, k, t);
                 }
 
                 assert(!j->transaction_next);
                 assert(!j->transaction_prev);
         }
 
-        return r;
+        return 0;
 }
 
 static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned generation) {
@@ -212,12 +211,12 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
         assert(m);
         assert(j);
 
-        /* Did we find a loop? */
+        /* Did we find a cycle? */
         if (j->marker && j->generation == generation) {
                 Job *k;
 
                 /* So, we already have been here. We have a
-                 * loop. Let's try to break it. We go backwards in our
+                 * cycle. Let's try to break it. We go backwards in our
                  * path and try to find a suitable job to remove. */
 
                 for (k = from; k; k = (k->generation == generation ? k->marker : NULL)) {
@@ -227,7 +226,7 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned
                         }
 
                         /* Check if this in fact was the beginning of
-                         * the loop */
+                         * the cycle */
                         if (k == j)
                                 break;
                 }
@@ -275,7 +274,7 @@ static int transaction_verify_order(Manager *m, unsigned *generation) {
 
                         if ((r = transaction_verify_order_one(m, j, NULL, (*generation)++)) < 0)  {
 
-                                /* There was a loop, but it was fixed,
+                                /* There was a cycleq, but it was fixed,
                                  * we need to restart our algorithm */
                                 if (r == -EAGAIN) {
                                         again = true;
@@ -421,7 +420,7 @@ rollback:
         return r;
 }
 
-static Job* transaction_add_job(Manager *m, JobType type, Name *name, bool *is_new) {
+static Job* transaction_add_one_job(Manager *m, JobType type, Name *name, bool *is_new) {
         Job *j, *f;
         int r;
 
@@ -491,7 +490,7 @@ void manager_transaction_delete_job(Manager *m, Job *j) {
                 job_dependency_free(j->object_list);
 }
 
-static int real_add_job(Manager *m, JobType type, Name *name, Job *by, bool matters, bool force, Job **_ret) {
+static int transaction_add_job_and_dependencies(Manager *m, JobType type, Name *name, Job *by, bool matters, bool force, Job **_ret) {
         Job *ret;
         void *state;
         Name *dep;
@@ -503,7 +502,7 @@ static int real_add_job(Manager *m, JobType type, Name *name, Job *by, bool matt
         assert(name);
 
         /* First add the job. */
-        if (!(ret = transaction_add_job(m, type, name, &is_new)))
+        if (!(ret = transaction_add_one_job(m, type, name, &is_new)))
                 return -ENOMEM;
 
         /* Then, add a link to the job. */
@@ -514,28 +513,28 @@ static int real_add_job(Manager *m, JobType type, Name *name, Job *by, bool matt
                 /* Finally, recursively add in all dependencies. */
                 if (type == JOB_START || type == JOB_RELOAD_OR_START) {
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_REQUIRES], state)
-                                if ((r = real_add_job(m, JOB_START, dep, ret, true, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, force, NULL)) < 0)
                                         goto fail;
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_SOFT_REQUIRES], state)
-                                if ((r = real_add_job(m, JOB_START, dep, ret, !force, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !force, force, NULL)) < 0)
                                         goto fail;
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_WANTS], state)
-                                if ((r = real_add_job(m, JOB_START, dep, ret, false, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, false, force, NULL)) < 0)
                                         goto fail;
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_REQUISITE], state)
-                                if ((r = real_add_job(m, JOB_VERIFY_STARTED, dep, ret, true, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_STARTED, dep, ret, true, force, NULL)) < 0)
                                         goto fail;
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_SOFT_REQUISITE], state)
-                                if ((r = real_add_job(m, JOB_VERIFY_STARTED, dep, ret, !force, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_STARTED, dep, ret, !force, force, NULL)) < 0)
                                         goto fail;
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_CONFLICTS], state)
-                                if ((r = real_add_job(m, JOB_STOP, dep, ret, true, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, force, NULL)) < 0)
                                         goto fail;
 
                 } else if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) {
 
                         SET_FOREACH(dep, ret->name->meta.dependencies[NAME_REQUIRED_BY], state)
-                                if ((r = real_add_job(m, type, dep, ret, true, force, NULL)) < 0)
+                                if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, force, NULL)) < 0)
                                         goto fail;
                 }
 
@@ -557,7 +556,7 @@ int manager_add_job(Manager *m, JobType type, Name *name, JobMode mode, bool for
         assert(name);
         assert(mode < _JOB_MODE_MAX);
 
-        if ((r = real_add_job(m, type, name, NULL, true, force, &ret))) {
+        if ((r = transaction_add_job_and_dependencies(m, type, name, NULL, true, force, &ret))) {
                 transaction_abort(m);
                 return r;
         }
@@ -584,121 +583,6 @@ Name *manager_get_name(Manager *m, const char *name) {
         return hashmap_get(m->names, name);
 }
 
-static int verify_type(Name *name) {
-        char *n;
-        void *state;
-
-        assert(name);
-
-        /* Checks that all aliases of this name have the same and valid type */
-
-        SET_FOREACH(n, name->meta.names, state) {
-                NameType t;
-
-                if ((t = name_type_from_string(n)) == _NAME_TYPE_INVALID)
-                        return -EINVAL;
-
-                if (name->meta.type == _NAME_TYPE_INVALID) {
-                        name->meta.type = t;
-                        continue;
-                }
-
-                if (name->meta.type != t)
-                        return -EINVAL;
-        }
-
-        if (name->meta.type == _NAME_TYPE_INVALID)
-                return -EINVAL;
-
-        return 0;
-}
-
-static int service_load_sysv(Service *s) {
-        assert(s);
-
-        /* Load service data from SysV init scripts, preferably with
-         * LSB headers ... */
-
-        return 0;
-}
-
-static int name_load_fstab(Name *n) {
-        assert(n);
-        assert(n->meta.type == NAME_MOUNT || n->meta.type == NAME_AUTOMOUNT);
-
-        /* Load mount data from /etc/fstab */
-
-        return 0;
-}
-
-static int snapshot_load(Snapshot *s) {
-        assert(s);
-
-        /* Load snapshots from disk */
-
-        return 0;
-}
-
-static int name_load_dropin(Name *n) {
-        assert(n);
-
-        /* Load dependencies from drop-in directories */
-
-        return 0;
-}
-
-static int load(Name *name) {
-        int r;
-
-        assert(name);
-
-        if (name->meta.state != NAME_STUB)
-                return 0;
-
-        if ((r = verify_type(name)) < 0)
-                return r;
-
-        if (name->meta.type == NAME_SERVICE) {
-
-                /* Load a .service file */
-                if ((r = name_load_fragment(name)) == 0)
-                        goto finish;
-
-                /* Load a classic init script */
-                if (r == -ENOENT)
-                        if ((r = service_load_sysv(SERVICE(name))) == 0)
-                                goto finish;
-
-        } else if (name->meta.type == NAME_MOUNT ||
-                   name->meta.type == NAME_AUTOMOUNT) {
-
-                if ((r = name_load_fstab(name)) == 0)
-                        goto finish;
-
-        } else if (name->meta.type == NAME_SNAPSHOT) {
-
-                if ((r = snapshot_load(SNAPSHOT(name))) == 0)
-                        goto finish;
-
-        } else {
-                if ((r = name_load_fragment(name)) == 0)
-                        goto finish;
-        }
-
-        name->meta.state = NAME_FAILED;
-        return r;
-
-finish:
-        if ((r = name_load_dropin(name)) < 0)
-                return r;
-
-        if ((r = name_link_names(name, true)) < 0)
-                return r;
-
-        name->meta.state = NAME_LOADED;
-        return 0;
-}
-
 static int dispatch_load_queue(Manager *m) {
         Meta *meta;
 
@@ -714,7 +598,7 @@ static int dispatch_load_queue(Manager *m) {
          * tries to load its data until the queue is empty */
 
         while ((meta = m->load_queue)) {
-                load(NAME(meta));
+                name_load(NAME(meta));
                 LIST_REMOVE(Meta, m->load_queue, meta);
         }
 
@@ -778,7 +662,7 @@ finish:
         return 0;
 }
 
-void manager_dump_jobs(Manager *s, FILE *f) {
+void manager_dump_jobs(Manager *s, FILE *f, const char *prefix) {
         void *state;
         Job *j;
 
@@ -786,10 +670,10 @@ void manager_dump_jobs(Manager *s, FILE *f) {
         assert(f);
 
         HASHMAP_FOREACH(j, s->jobs, state)
-                job_dump(j, f);
+                job_dump(j, f, prefix);
 }
 
-void manager_dump_names(Manager *s, FILE *f) {
+void manager_dump_names(Manager *s, FILE *f, const char *prefix) {
         void *state;
         Name *n;
         const char *t;
@@ -799,5 +683,16 @@ void manager_dump_names(Manager *s, FILE *f) {
 
         HASHMAP_FOREACH_KEY(n, t, s->names, state)
                 if (name_id(n) == t)
-                        name_dump(n, f);
+                        name_dump(n, f, prefix);
+}
+
+void manager_clear_jobs(Manager *m) {
+        Job *j;
+
+        assert(m);
+
+        transaction_abort(m);
+
+        while ((j = hashmap_first(m->jobs)))
+                job_free(j);
 }