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lib/igt_debugfs: implement a singleton igt_debugfs_t instance

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Allows us to remove every so little bit of boilerplate from
tests, once it's all rolled out.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-03-16 14:40:32 +01:00
parent 8fe0c50871
commit 28b6e41142
1 changed files with 16 additions and 0 deletions
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16
lib/igt_debugfs.c
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@ -121,6 +121,22 @@ void igt_debugfs_init(igt_debugfs_t *debugfs)
igt_assert(__igt_debugfs_init(debugfs));
}
static igt_debugfs_t *__igt_debugfs_singleton(void)
{
static igt_debugfs_t singleton;
static bool init_done = false;
if (init_done)
return &singleton;
if (__igt_debugfs_init(&singleton)) {
init_done = true;
return &singleton;
} else {
return NULL;
}
}
/**
* igt_debugfs_open:
* @debugfs: debugfs access structure