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glib-compat: add fallback for g_clear_fd/g_autofd

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Those helpers were added in glib 2.76.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20260623-b4-ui-v4-7-4656aec3398d@redhat.com>
This commit is contained in:
Marc-André Lureau
2026-06-23 11:44:22 +04:00
parent a161949de8
commit 1599015a7a
1 changed files with 29 additions and 0 deletions
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29
include/glib-compat.h
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@@ -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