1 files changed, 38 insertions, 0 deletions
diff --git a/src/libs6/s6lock_acquire.c b/src/libs6/s6lock_acquire.c
new file mode 100644
index 0000000..b0fef54
--- /dev/null
+++ b/src/libs6/s6lock_acquire.c
@@ -0,0 +1,38 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/uint16.h>
+#include <skalibs/uint32.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/siovec.h>
+#include <skalibs/tai.h>
+#include <skalibs/gensetdyn.h>
+#include <skalibs/skaclient.h>
+#include <s6/s6lock.h>
+
+int s6lock_acquire (s6lock_t *a, uint16 *u, char const *path, uint32 options, tain_t const *limit, tain_t const *deadline, tain_t *stamp)
+{
+  unsigned int pathlen = str_len(path) ;
+  char err ;
+  char tmp[23] = "--<" ;
+  siovec_t v[2] = { { .s = tmp, .len = 23 }, { .s = (char *)path, .len = pathlen + 1 } } ;
+  unsigned int i ;
+  if (!gensetdyn_new(&a->data, &i)) return 0 ;
+  uint16_pack_big(tmp, (uint16)i) ;
+  uint32_pack_big(tmp+3, options) ;
+  tain_pack(tmp+7, limit) ;
+  uint32_pack_big(tmp+19, (uint32)pathlen) ;
+  if (!skaclient_sendv(&a->connection, v, 2, &skaclient_default_cb, &err, deadline, stamp))
+  {
+    gensetdyn_delete(&a->data, i) ;
+    return 0 ;
+  }
+  if (err)
+  {
+    gensetdyn_delete(&a->data, i) ;
+    return (errno = err, 0) ;
+  }
+  *GENSETDYN_P(char, &a->data, i) = EAGAIN ;
+  *u = i ;
+  return 1 ;
+}