Some more code around state

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

2 files changed, 52 insertions, 0 deletions

diff --git a/src/libs6rc/s6rc_service_common.c b/src/libs6rc/s6rc_service_common.c
new file mode 100644
index 0000000..f3146be
--- /dev/null
+++ b/src/libs6rc/s6rc_service_common.c
@@ -0,0 +1,19 @@
+/* ISC license. */
+
+#include <stdint.h>
+
+#include <s6-rc/db.h>
+
+s6rc_common_t const *s6rc_service_common (s6rc_db_t const *db, s6rc_sid_t const *id)
+{
+  uint32_t i = id->i + (id->param ? db->n[id->stype] : 0) ;
+  switch (id->stype)
+  {
+    case STYPE_LONGRUN :  return &db->longruns[i].common ;
+    case STYPE_ONESHOT :  return &db->oneshots[i].common ;
+    case STYPE_EXTERNAL : return &db->externals[i].common ;
+    case STYPE_BUNDLE :   return &db->bundles[i].common ;
+    case STYPE_VIRTUAL :  return &db->virtuals[i].common ;
+    default : return 0 ;
+  }
+}
diff --git a/src/libs6rc/s6rc_service_resolve.c b/src/libs6rc/s6rc_service_resolve.c
new file mode 100644
index 0000000..858f67c
--- /dev/null
+++ b/src/libs6rc/s6rc_service_resolve.c
@@ -0,0 +1,33 @@
+/* ISC license. */
+
+#include <string.h>
+#include <errno.h>
+
+#include <skalibs/uint32.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/cdb.h>
+
+#include <s6-rc/db.h>
+
+int s6rc_service_resolve (cdb_t *c, s6rc_sid_t *id, char const *s)
+{
+  size_t len = strlen(s) ;
+  char const *param = 0 ;
+  char pack[5] ;
+  int r = cdb_find(c, s, len) ;
+  if (r < 0) return r ;
+  if (!r)
+  {
+    size_t at = byte_chr(s, len, '@') ;
+    if (at == len) return 0 ;
+    if (at == len - 1) return (errno = EINVAL, -1) ;
+    r = cdb_find(c, s, at + 1) ;
+    if (r <= 0) return r ;
+    param = s + at + 1 ;
+  }
+  if (cdb_read(c, pack, 5, cdb_datapos(c)) < 0) return -1 ;
+  id->stype = pack[0] ;
+  uint32_unpack_big(pack + 1, &id->i) ;
+  id->param = param ;
+  return 1 ;
+}