1 files changed, 26 insertions, 0 deletions
diff --git a/src/libs6/ftrigr_peek.c b/src/libs6/ftrigr_peek.c
new file mode 100644
index 0000000..155fce3
--- /dev/null
+++ b/src/libs6/ftrigr_peek.c
@@ -0,0 +1,26 @@
+/* ISC license. */
+
+#include <sys/uio.h>
+#include <errno.h>
+
+#include <skalibs/genalloc.h>
+
+#include <s6/ftrigr.h>
+#include "ftrigr-internal.h"
+
+int ftrigr_peek (ftrigr *a, uint32_t id, struct iovec *v)
+{
+  ftrigr_data *p = genalloc_s(ftrigr_data, &a->data) + id ;
+  switch (p->status)
+  {
+    case EAGAIN : return 0 ;
+    case 0 :
+    {
+      v->iov_base = p->sa.s ;
+      v->iov_len = p->sa.len ;
+      return 1 ;
+    }
+    default: break ;
+  }
+  return (errno = p->status, -1) ;
+}