Some more code around state

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/server/state.h b/src/server/state.h
new file mode 100644
index 0000000..f0149bc
--- /dev/null
+++ b/src/server/state.h
@@ -0,0 +1,45 @@
+/* ISC license. */
+
+#ifndef S6RCD_STATE_H
+#define S6RCD_STATE_H
+
+#include <skalibs/genalloc.h>
+
+#include <s6-rc/db.h>
+
+
+ /* Service states, instances, machine state */
+
+typedef struct stateatom_s stateatom_t, *stateatom_t_ref ;
+struct stateatom_s
+{
+  uint8_t wanted : 1 ;
+  uint8_t current : 1 ;
+  uint8_t transitioning : 1 ;
+} ;
+
+typedef struct instance_s instance_t, *instance_t_ref ;
+struct instance_s
+{
+  char const *param ;
+  stateatom_t state ;
+} ;
+
+typedef struct state_s state_t, *state_t_ref ;
+struct state_s
+{
+  stateatom_t *sta[S6RC_STYPE_PHAIL] ;
+  genalloc *dyn[S6RC_STYPE_PHAIL] ;  /* every genalloc is a list of instance_t */
+} ;
+
+extern void state_free (state_t *, uint32_t const *) ;
+extern int state_ready (state_t *, uint32_t const *) ;
+
+extern int state_write (char const *, state_t const *, uint32_t const *) ;
+extern int state_read (char const *, state_t *, uint32_t const *) ;
+
+
+extern stateatom_t *state_atom (s6rc_db_t const *, state_t const *, s6rc_sid_t const *) ;
+
+
+#endif