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bloblist: Provide a way to remove a blob

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Add a function to remove a blob of a particular type.

Signed-off-by: Simon Glass <sjg@chromium.org>
Co-developed-by: Claude <noreply@anthropic.com>
This commit is contained in:
Simon Glass
2025-10-18 08:04:29 +01:00
parent c0e473d29b
commit 8434d55382
3 changed files with 108 additions and 0 deletions
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64
test/common/bloblist.c
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@@ -605,3 +605,67 @@ static int bloblist_test_blob_maxsize(struct unit_test_state *uts)
return 0;
}
BLOBLIST_TEST(bloblist_test_blob_maxsize, UFT_BLOBLIST);
/* Test removing a blob */
static int bloblist_test_remove(struct unit_test_state *uts)
{
const uint small_size = 0x20;
struct bloblist_hdr *hdr;
void *blob1, *blob2, *blob3;
ulong used_before, used_after;
clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0, 0));
hdr = map_sysmem(TEST_ADDR, TEST_BLOBLIST_SIZE);
/* Create three blobs */
blob1 = bloblist_add(TEST_TAG, small_size, 0);
ut_assertnonnull(blob1);
strcpy(blob1, test1_str);
blob2 = bloblist_add(TEST_TAG2, small_size, 0);
ut_assertnonnull(blob2);
strcpy(blob2, test2_str);
blob3 = bloblist_add(TEST_TAG_MISSING, small_size, 0);
ut_assertnonnull(blob3);
used_before = hdr->used_size;
/* Remove the middle blob */
ut_assertok(bloblist_remove(TEST_TAG2));
/* Check that the blob is gone */
ut_assertnull(bloblist_find(TEST_TAG2, 0));
/* Check that the first blob is still there and intact */
ut_asserteq_ptr(blob1, bloblist_find(TEST_TAG, small_size));
ut_asserteq_str(test1_str, blob1);
/* Check that the third blob is still there */
ut_assertnonnull(bloblist_find(TEST_TAG_MISSING, small_size));
/* Check that used_size was reduced */
used_after = hdr->used_size;
ut_assert(used_after < used_before);
/* Try to remove a non-existent blob */
ut_asserteq(-ENOENT, bloblist_remove(TEST_TAG2));
/* Remove the first blob */
ut_assertok(bloblist_remove(TEST_TAG));
ut_assertnull(bloblist_find(TEST_TAG, 0));
/* The third blob should still be accessible */
ut_assertnonnull(bloblist_find(TEST_TAG_MISSING, small_size));
/* Remove the last blob */
ut_assertok(bloblist_remove(TEST_TAG_MISSING));
ut_assertnull(bloblist_find(TEST_TAG_MISSING, 0));
/* Check that we're back to just the header */
ut_asserteq(sizeof(struct bloblist_hdr), hdr->used_size);
return 0;
}
BLOBLIST_TEST(bloblist_test_remove, UFT_BLOBLIST);