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feat(scheduler-core): add picker configuration fields (task 1.3)

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Adds xce_scheduler_t.job_pick_plugin (global picker name), and on
xce_sched_queue_t: project_name + job_pick_plugin (per-queue override,
NULL = inherit global). Adds xce_sched_project_t.priority (scaffolding
only, no quota logic). sched_set_default_job_pick_plugin() is added but
not yet wired into sched_init() -- task 2.4 owns that, alongside
replacing the hardcoded "xce_sched_fcfs" literal.

Requirements: 2.1, 2.2, 2.3, 2.4
This commit is contained in:
Rongsong Shen 2026-08-03 05:45:53 +00:00
parent 4d8d72142e
commit 0d63a789a1
6 changed files with 398 additions and 2 deletions
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18
src/scheduler/include/sched/types.h
View file

@ -64,7 +64,12 @@ typedef struct {
} xce_sched_user_t;
typedef struct {
char* name;
char* name;
/* Req 2 AC (scheduler-core spec, task 1.3): inter-project ordering
* scaffolding for a future spec (project-resource-ownership). No
* quota/usage/hierarchy fields yet -- see design.md's "Out of Scope".
* Defaults to 0 (make_sched_project, schedobj.c). */
int32_t priority;
} xce_sched_project_t;
typedef struct {
@ -75,6 +80,17 @@ typedef struct {
int32_t accept_interval;
int32_t sched_delay;
char* resreq;
/* Req 2 AC 3 (scheduler-core spec, task 1.3): owning project name,
* establishing the queue->project relationship. Scaffolding only --
* xce_queue_t (the raw config struct) has no project field yet, so
* make_sched_queue (schedobj.c) leaves this NULL; the picker plugin
* may use it internally for project-scoped iteration (v2). */
char* project_name;
/* Req 2 AC 2: per-queue picker-plugin override. NULL means "inherit
* sched->job_pick_plugin" (the global default). Non-NULL means jobs in
* this queue use this picker instead -- how a picker plugin *uses* the
* override is the plugin's concern, not the core loop's (task 2.4+). */
char* job_pick_plugin;
} xce_sched_queue_t;
typedef struct xce_sched_job_ {

12
src/scheduler/include/scheduler.h
View file

@ -91,6 +91,14 @@ typedef struct {
uint64_t nextid;
xce_conf4sched_t* config;
uint64_t configver;
/* Req 2 AC 1 (scheduler-core spec, task 1.3): global picker plugin
* name. NULL until sched_set_default_job_pick_plugin() (schedobj.c)
* applies the "builtin_fcfs" default, or a future config-driven
* assignment sets it explicitly. This field only carries the *name* --
* resolving it against the plugin registry (plugin_register/key_find)
* and failing startup loudly on an unregistered name (Req 2 AC 5) is
* task 2.4's job. */
char* job_pick_plugin;
var plugins;
void* seqjob_allocator;
void* parjob_allocator;
@ -125,6 +133,10 @@ extern int sched_init(xce_scheduler_t*, xce_client_config_t*,
const xce_cluster_config_t*, xce_request_handler_t);
extern void sched_fini(xce_scheduler_t*);
extern int sched_init_config(xce_scheduler_t* sched, xce_conf4sched_t*);
/* Req 2 AC 1 (scheduler-core spec, task 1.3): applies the "builtin_fcfs"
* default to sched->job_pick_plugin when unset. See the field comment on
* xce_scheduler_t above -- this does NOT resolve/register the name. */
extern void sched_set_default_job_pick_plugin(xce_scheduler_t*);
extern int sched_update(xce_scheduler_t*);
extern void sched_go(xce_scheduler_t*);
extern void sched_begin_session(xce_scheduler_t*);