From 4b2cbddf2fdd394d4a91735237b266f9b026123c Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 3 Sep 2026 22:42:12 +0000
Subject:  Add waitpids, waitpids_nohang, refactor wait stuff

 Also fix fd_cat doc
---
 src/libstddjb/waitpids.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/libstddjb/waitpids.c

(limited to 'src/libstddjb/waitpids.c')

diff --git a/src/libstddjb/waitpids.c b/src/libstddjb/waitpids.c
new file mode 100644
index 0000000..47c9c34
--- /dev/null
+++ b/src/libstddjb/waitpids.c
@@ -0,0 +1,20 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include <skalibs/djbunix.h>
+
+ /*
+   waitpids: blocking wait, don't reap anything unlisted
+ */
+
+size_t waitpids (pid_t const *pids, size_t len, int *wstat)
+{
+  for (size_t i = 0 ; i < len ; i++)
+  {
+    pid_t r = wait_pid(pids[i], wstat) ;
+    if (r == (pid_t)-1) return i ;
+  }
+  return len ;
+}
-- 
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