From 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 10 Apr 2024 22:49:52 +0200
Subject: Adding upstream version 255.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 man/journal-iterate-poll.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 man/journal-iterate-poll.c

(limited to 'man/journal-iterate-poll.c')

diff --git a/man/journal-iterate-poll.c b/man/journal-iterate-poll.c
new file mode 100644
index 0000000..d377324
--- /dev/null
+++ b/man/journal-iterate-poll.c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: MIT-0 */
+
+#include <poll.h>
+#include <time.h>
+#include <systemd/sd-journal.h>
+
+int wait_for_changes(sd_journal *j) {
+  uint64_t t;
+  int msec;
+  struct pollfd pollfd;
+
+  sd_journal_get_timeout(j, &t);
+  if (t == (uint64_t) -1)
+    msec = -1;
+  else {
+    struct timespec ts;
+    uint64_t n;
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+    n = (uint64_t) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
+    msec = t > n ? (int) ((t - n + 999) / 1000) : 0;
+  }
+
+  pollfd.fd = sd_journal_get_fd(j);
+  pollfd.events = sd_journal_get_events(j);
+  poll(&pollfd, 1, msec);
+  return sd_journal_process(j);
+}
-- 
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