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shm: add shm_purge()

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Destroys *all* buffers associated with the specified cookie.
This commit is contained in:
Daniel Eklöf 2019-11-02 00:49:00 +01:00
parent 4d3251a93b
commit 8e5d386afc
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GPG key ID: 5BBD4992C116573F
2 changed files with 19 additions and 0 deletions
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17
shm.c
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@ -182,3 +182,20 @@ shm_fini(void)
tll_remove(buffers, it);
}
}
void
shm_purge(struct wl_shm *shm, unsigned long cookie)
{
LOG_DBG("cookie=%lx: purging all buffers", cookie);
/* Purge old buffers associated with this cookie */
tll_foreach(buffers, it) {
if (it->item.cookie != cookie)
continue;
assert(!it->item.busy);
buffer_destroy(&it->item);
tll_remove(buffers, it);
}
}

2
shm.h
View file

@ -24,3 +24,5 @@ struct buffer {
struct buffer *shm_get_buffer(
struct wl_shm *shm, int width, int height, unsigned long cookie);
void shm_fini(void);
void shm_purge(struct wl_shm *shm, unsigned long cookie);