[libvirt] [libvirt-php PATCH 4/7] fix libvirt_doman_get_connect implementation.

[Dawid Zamirski]

This function must bump refcount of the returned resource because it
just returns the one that was registered with libvirt_connect call,
otherwise it would sefgault if calling code called this function more
than once and the return of the first call would be GCd before the 2nd
call.
---
 src/libvirt-php.c | 18 ++++++------------
 src/libvirt-php.h | 14 +++++++++-----
 2 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/src/libvirt-php.c b/src/libvirt-php.c
index 73466f1..89b17bb 100644
--- a/src/libvirt-php.c
+++ b/src/libvirt-php.c
@@ -2177,13 +2177,8 @@ PHP_FUNCTION(libvirt_connect)
     resource_change_counter(INT_RESOURCE_CONNECTION, NULL, conn->conn, 1 TSRMLS_CC);
     DPRINTF("%s: Connection to %s established, returning %p\n", PHPFUNC, url, conn->conn);
 
-#if PHP_MAJOR_VERSION >= 7
-    conn->resource_id = zend_register_resource(conn, le_libvirt_connection);
-    ZVAL_RES(return_value, conn->resource_id);
-#else
-    ZEND_REGISTER_RESOURCE(return_value, conn, le_libvirt_connection);
-    conn->resource_id = Z_LVAL_P(return_value);
-#endif
+    VIRT_REGISTER_RESOURCE(conn, le_libvirt_connection);
+    conn->resource = VIRT_RESOURCE_HANDLE(return_value);
 }
 
 /*
@@ -7216,11 +7211,10 @@ PHP_FUNCTION(libvirt_domain_get_connect)
     conn = domain->conn;
     if (conn->conn == NULL)
         RETURN_FALSE;
-#if PHP_MAJOR_VERSION >= 7
-    ZVAL_RES(return_value, conn->resource_id);
-#else
-    RETURN_RESOURCE(conn->resource_id);
-#endif
+
+    VIRT_RETURN_RESOURCE(conn->resource);
+    /* since we're returning already registered resource, bump refcount */
+    Z_ADDREF_P(return_value);
 }
 
 /*
diff --git a/src/libvirt-php.h b/src/libvirt-php.h
index 0422661..ed6a8bc 100644
--- a/src/libvirt-php.h
+++ b/src/libvirt-php.h
@@ -122,6 +122,7 @@ typedef uint64_t arch_uint;
 #if PHP_MAJOR_VERSION >= 7
 typedef size_t strsize_t;
 typedef zend_resource virt_resource;
+typedef virt_resource *virt_resource_handle;
 
 #define VIRT_RETURN_RESOURCE(_resource) \
     RETVAL_RES(_resource)
@@ -135,6 +136,9 @@ typedef zend_resource virt_resource;
     add_next_index_zval(return_value, &zret); \
     } while(0)
 
+#define VIRT_RESOURCE_HANDLE(_resource) \
+    Z_RES_P(_resource)
+
 #define VIRT_FETCH_RESOURCE(_state, _type, _zval, _name, _le) \
     if ((_state = (_type)zend_fetch_resource(Z_RES_P(*_zval), _name, _le)) == NULL) { \
         RETURN_FALSE; \
@@ -179,6 +183,7 @@ typedef int strsize_t;
 typedef long zend_long;
 typedef unsigned long zend_ulong;
 typedef zend_rsrc_list_entry virt_resource;
+typedef long virt_resource_handle;
 
 #define VIRT_RETURN_RESOURCE(_resource) \
     RETVAL_RESOURCE((long) _resource)
@@ -193,6 +198,9 @@ typedef zend_rsrc_list_entry virt_resource;
     add_next_index_zval(return_value, zret); \
     } while(0)
 
+#define VIRT_RESOURCE_HANDLE(_resource) \
+    Z_LVAL_P(_resource)
+
 #define VIRT_FETCH_RESOURCE(_state, _type, _zval, _name, _le) \
     ZEND_FETCH_RESOURCE(_state, _type, _zval, -1, _name, _le);
 
@@ -298,11 +306,7 @@ typedef struct tVMNetwork {
 /* Libvirt-php types */
 typedef struct _php_libvirt_connection {
     virConnectPtr conn;
-#if PHP_MAJOR_VERSION >= 7
-    zend_resource *resource_id;
-#else
-    long resource_id;
-#endif
+    virt_resource_handle resource;
 } php_libvirt_connection;
 
 typedef struct _php_libvirt_stream {
-- 
2.13.0