From d27672b7a3e3d35997dd73139ebbcfbd331f1f1c Mon Sep 17 00:00:00 2001
From: Andrew Wood <andrew.wood@ivarch.com>
Date: Tue, 21 Oct 2025 22:10:38 +0100
Subject: [PATCH] Declare pv_open_controlfile so it can be used for the query
 action (#101).

---
 src/include/pv.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/include/pv.h b/src/include/pv.h
index a3e04d2..5554039 100644
--- a/src/include/pv.h
+++ b/src/include/pv.h
@@ -13,6 +13,7 @@
 #include "config.h"
 #endif
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <signal.h>
@@ -268,6 +269,14 @@ extern void pv_sig_init(pvstate_t);
 extern bool pv_sigusr2_received(pvstate_t, pid_t *);
 #endif
 
+/*
+ * Return a stream pointer for a control file associated with a particular
+ * process ID and signal.
+ */
+/*@null@ */
+/*@dependent@ */
+extern FILE *pv_open_controlfile(char *, size_t, pid_t, int, bool);
+
 /*
  * Enter the main transfer loop, transferring all input files to the output.
  */