manager.h

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   2
   3 #ifndef foomanagerhfoo
   4 #define foomanagerhfoo
   5
   6 #include <stdbool.h>
   7 #include <inttypes.h>
   8 #include <stdio.h>
   9
  10 typedef struct Manager Manager;
  11 typedef enum ManagerEventType ManagerEventType;
  12
  13 #include "name.h"
  14 #include "job.h"
  15 #include "hashmap.h"
  16 #include "list.h"
  17 #include "set.h"
  18
  19 enum ManagerEventType {
  20         MANAGER_SIGNAL,
  21         MANAGER_FD,
  22         MANAGER_TIMER
  23 };
  24
  25 struct Manager {
  26         uint32_t current_job_id;
  27
  28         /* Note that the set of names we know of is allowed to be
  29          * incosistent. However the subset of it that is loaded may
  30          * not, and the list of jobs may neither. */
  31
  32         /* Active jobs and names */
  33         Hashmap *names;  /* name string => Name object n:1 */
  34         Hashmap *jobs;   /* job id => Job object 1:1 */
  35
  36         /* Names that need to be loaded */
  37         LIST_HEAD(Meta, load_queue); /* this is actually more a stack than a queue, but uh. */
  38
  39         /* Jobs that need to be run */
  40         LIST_HEAD(Job, run_queue);   /* more a stack than a queue, too */
  41
  42         /* Jobs to be added */
  43         Hashmap *transaction_jobs;      /* Name object => Job object list 1:1 */
  44         JobDependency *transaction_anchor;
  45
  46         bool dispatching_load_queue:1;
  47         bool dispatching_run_queue:1;
  48
  49         Hashmap *watch_pids;  /* pid => Name object n:1 */
  50
  51         int epoll_fd;
  52         int signal_fd;
  53 };
  54
  55 Manager* manager_new(void);
  56 void manager_free(Manager *m);
  57
  58 Job *manager_get_job(Manager *m, uint32_t id);
  59 Name *manager_get_name(Manager *m, const char *name);
  60
  61 int manager_load_name(Manager *m, const char *name, Name **_ret);
  62 int manager_add_job(Manager *m, JobType type, Name *name, JobMode mode, bool force, Job **_ret);
  63
  64 void manager_dump_names(Manager *s, FILE *f, const char *prefix);
  65 void manager_dump_jobs(Manager *s, FILE *f, const char *prefix);
  66
  67 void manager_transaction_unlink_job(Manager *m, Job *j);
  68
  69 void manager_clear_jobs(Manager *m);
  70
  71 void manager_dispatch_run_queue(Manager *m);
  72 int manager_loop(Manager *m);
  73
  74 #endif