[PATCH 06/32] glib-compat: add fallback for g_clear_fd/g_autofd

[Marc-André Lureau]

Those helpers were added in glib 2.76.

Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
---
 include/glib-compat.h | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/include/glib-compat.h b/include/glib-compat.h
index 2e32b90f051..32ee2afdcdf 100644
--- a/include/glib-compat.h
+++ b/include/glib-compat.h
@@ -30,6 +30,7 @@
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 
 #include <glib.h>
+#include <glib/gstdio.h>
 #if defined(G_OS_UNIX)
 #include <glib-unix.h>
 #include <sys/types.h>
@@ -129,6 +130,34 @@ qemu_g_test_slow(void)
 #define g_test_thorough() qemu_g_test_slow()
 #define g_test_quick() (!qemu_g_test_slow())
 
+static inline gboolean g_clear_fd_qemu(int *fd_ptr, GError **error)
+{
+#if GLIB_CHECK_VERSION(2, 76, 0)
+    return g_clear_fd(fd_ptr, error);
+#else
+    int fd = *fd_ptr;
+
+    *fd_ptr = -1;
+
+    if (fd < 0) {
+        return TRUE;
+    }
+
+    return g_close(fd, error);
+#endif
+}
+#define g_clear_fd(fd, err) g_clear_fd_qemu(fd, err)
+
+#if !GLIB_CHECK_VERSION(2, 76, 0)
+static inline void _g_clear_fd_ignore_error(int *fd_ptr)
+{
+    int errsv = errno;
+    g_clear_fd(fd_ptr, NULL);
+    errno = errsv;
+}
+#define g_autofd __attribute__((cleanup(_g_clear_fd_ignore_error)))
+#endif
+
 #pragma GCC diagnostic pop
 
 #ifndef G_NORETURN

-- 
2.54.0