virtualprotect.diff

 ext/opcache/ZendAccelerator.c   | 10 ++++++++--
 ext/opcache/zend_shared_alloc.c | 18 ++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
index 7879de866f..802e7ed23b 100644
--- a/ext/opcache/ZendAccelerator.c
+++ b/ext/opcache/ZendAccelerator.c
@@ -133,8 +133,14 @@ static void preload_activate(void);
 static void preload_restart(void);
 
 #ifdef ZEND_WIN32
-# define INCREMENT(v) InterlockedIncrement64(&ZCSG(v))
-# define DECREMENT(v) InterlockedDecrement64(&ZCSG(v))
+# define INCREMENT(v) \
+	SHM_UNPROTECT(); \
+	InterlockedIncrement64(&ZCSG(v)); \
+	SHM_PROTECT()
+# define DECREMENT(v) \
+	SHM_UNPROTECT(); \
+	InterlockedDecrement64(&ZCSG(v)); \
+	SHM_PROTECT()
 # define LOCKVAL(v)   (ZCSG(v))
 #endif
 
diff --git a/ext/opcache/zend_shared_alloc.c b/ext/opcache/zend_shared_alloc.c
index 177cbcc46f..72ff6fa033 100644
--- a/ext/opcache/zend_shared_alloc.c
+++ b/ext/opcache/zend_shared_alloc.c
@@ -594,6 +594,24 @@ void zend_accel_shared_protect(int mode)
 	for (i = 0; i < ZSMMG(shared_segments_count); i++) {
 		mprotect(ZSMMG(shared_segments)[i]->p, ZSMMG(shared_segments)[i]->size, mode);
 	}
+#elif defined(ZEND_WIN32)
+	int i;
+
+	if (!smm_shared_globals) {
+		return;
+	}
+
+	if (mode) {
+		mode = PAGE_READONLY;
+	} else {
+		mode = PAGE_READWRITE;
+	}
+
+	for (i = 0; i < ZSMMG(shared_segments_count); i++) {
+		DWORD oldProtect;
+
+		VirtualProtect((LPVOID)ZSMMG(shared_segments)[i]->p, ZSMMG(shared_segments)[i]->size, mode, &oldProtect);
+	}
 #endif
 }