From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 31 Oct 2021 13:12:26 +0000 (+0200)
Subject: Check for closed handles when changing Pipe flags
X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=commitdiff_plain;h=26a5878092f6547e701fd1a33abbf1878d26ab70

Check for closed handles when changing Pipe flags
---

diff --git a/source/io/pipe.cpp b/source/io/pipe.cpp
index 01bf20a..f6bc335 100644
--- a/source/io/pipe.cpp
+++ b/source/io/pipe.cpp
@@ -43,15 +43,19 @@ void Pipe::set_mode(Mode m)
 void Pipe::set_block(bool b)
 {
 	adjust_mode(mode, M_NONBLOCK, !b);
-	sys_set_blocking(read_handle, b);
-	sys_set_blocking(write_handle, b);
+	if(read_handle)
+		sys_set_blocking(read_handle, b);
+	if(write_handle)
+		sys_set_blocking(write_handle, b);
 }
 
 void Pipe::set_inherit(bool i)
 {
 	adjust_mode(mode, M_INHERIT, i);
-	sys_set_inherit(read_handle, i);
-	sys_set_inherit(write_handle, i);
+	if(read_handle)
+		sys_set_inherit(read_handle, i);
+	if(write_handle)
+		sys_set_inherit(write_handle, i);
 }
 
 size_t Pipe::do_write(const char *buf, size_t size)