save works

src/scheduler/src/scheduler.c

@@ -7,6 +7,7 @@
 
 #include "client.h"
 #include "controller.capnp.h"
+#include "decision.h"
 #include "kvmgr.h"
 #include "objmgr.h"
 #include "plugin.h"
@@ -29,7 +30,37 @@ static void* sched_job_picker(void* arg)
 
 static xce_decision_t* calc_decision(xce_scheduler_t* sched, uint64_t jobid)
 {
-    return NULL;
+    xce_sched_job_t*    job    = sched_get_job(sched, jobid);
+    xce_sched_plugin_t* plugin = NULL;
+    xce_job_alloc_t*    alloc  = NULL;
+
+    if (job == NULL) {
+        ERROR("%s job %lu can not be found", __func__, jobid);
+        return NULL;
+    }
+
+    if (job->allocator == NULL) {
+        ERROR("%s job %lu has invalid allocator", __func__, jobid);
+        return NULL;
+    }
+
+    plugin = (xce_sched_plugin_t*)job->allocator;
+    if (plugin->job_alloc_fn == NULL) {
+        ERROR("%s plugin %s has no allocation function", __func__,
+              plugin->name);
+        return NULL;
+    }
+
+    alloc = plugin->job_alloc_fn(job->allocator, jobid);
+    if (alloc == NULL) {
+        return make_pend_decision(jobid);
+    }
+
+    return make_dispatch_decision(alloc);
+}
+
+static int commit_decision(xce_scheduler_t *sched, xce_decision_t *decision) {
+    return sched_commit_decision(sched, decision);
 }
 
 static void* sched_allocator(void* arg)
@@ -54,6 +85,8 @@ static void* sched_allocator(void* arg)
         /* calculate decision for jobid */
         decision = calc_decision(sched, jobid);
 
+        commit_decision(sched, decision);
+        
         cbuf_put(&(sched->decisions), &decision);
     }
 
@@ -98,6 +131,7 @@ static void sched_pend_update_killer(data_item_t* it)
 static int sched_register_plugins(xce_scheduler_t* sched)
 {
     register_fcfs(sched);
+    register_default_allocator(sched);
 
     return 0;
 }
@@ -366,3 +400,7 @@ xce_sched_project_t* sched_get_project(xce_scheduler_t* sched, char* name)
 int sched_job_is_ready(xce_sched_job_t* j) { return 1; }
 
 int sched_queue_is_ready(xce_sched_queue_t* q) { return 1; }
+
+int sched_commit_decision(xce_scheduler_t *sched, xce_decision_t *decision) {
+    return 0;
+}