MFH: - Fixed bug #41815 (Concurrent read/write fails when EOF is reached)

NEWS

@@ -18,6 +18,7 @@ PHP                                                                        NEWS
   (Dmitry, Andrei Nigmatulin)
 - Changed mail() function to be always available. (Johannes)
 
+- Added check for unknown options passed to configure. (Jani)
 - Added persistent connection status checker to pdo_pgsql.
   (Elvis Pranskevichus, Ilia)
 - Added support for ATTR_TIMEOUT inside pdo_pgsql driver. (Ilia)
@@ -74,6 +75,7 @@ PHP                                                                        NEWS
   a node's siblings). (Rob)
 - Fixed bug #41845 (pgsql extension does not compile with PostgreSQL <7.4).
   (Ilia)
+- Fixed bug #41815 (Concurrent read/write fails when EOF is reached). (Sascha)
 - Fixed bug #41813 (segmentation fault when using string offset as an object).
   (judas dot iscariote at gmail dot com, Tony)
 - Fixed bug #41795 (checkdnsrr does not support DNS_TXT type). 

ext/standard/tests/file/bug41815.phpt

@@ -0,0 +1,24 @@
+--TEST--
+Bug #41815 (Concurrent read/write fails when EOF is reached)
+--FILE--
+<?php
+
+$filename = dirname(__FILE__)."/concur_rw.txt";
+
+@unlink($filename);
+$writer = fopen($filename, "w");
+$reader = fopen($filename, "r");
+fread($reader, 1);
+fwrite($writer, "foo");
+
+if (strlen(fread($reader, 10)) > 0) {
+	echo "OK\n";
+}
+
+@unlink($filename);
+
+echo "Done\n";
+?>
+--EXPECTF--	
+OK
+Done

main/streams/plain_wrapper.c

@@ -329,9 +329,6 @@ static size_t php_stdiop_read(php_stream *stream, char *buf, size_t count TSRMLS
 	assert(data != NULL);
 
 	if (data->fd >= 0) {
-		if (stream->eof && !data->is_pipe) {
-			return 0;
-		}
 		ret = read(data->fd, buf, count);
 
 		if (ret == (size_t)-1 && errno == EINTR) {