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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2022 Intel Corporation
*/
#ifndef IGT_TYPES_H
#define IGT_TYPES_H
/*
* GCC can automatically cleanup variables that go out of scope, but only
* through normal means. Breaking out of scope using longjmp (i.e. igt_skip)
* is not handled automatically by GCC. Such scoped variables must be tracked
* in an outer scope to the skipping subtest.
*
* BAD:
* igt_subtest("bad") {
* igt_fd_t(fd);
*
* fd = drm_open_driver();
* }
*
* GOOD:
* igt_subtest_group() {
* igt_fd_t(fd);
*
* igt_fixture {
* fd = drm_open_driver();
* }
*
* igt_subtest("good")
* ;
* }
*
* A rule of thumb is that anything that is initialised through a fixture can
* be combined with automatic cleanup.
*/
#define cleanup_with(fn) __attribute__((__cleanup__(fn)))
/* Prevent use within the inner scope subtests, it will be broken by igt_skip */
#define IGT_OUTER_SCOPE_INIT(x) ({ __igt_assert_in_outer_scope(); x; })
void igt_cleanup_fd(volatile int *fd);
#define igt_fd_t(x__) \
volatile int x__ cleanup_with(igt_cleanup_fd) = IGT_OUTER_SCOPE_INIT(-1)
#endif /* IGT_TYPES_H */
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