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Commit 3a69cc70 authored by Josh Gao's avatar Josh Gao Committed by Automerger Merge Worker
Browse files

adb: fix front_size, front_data. am: 4da40a9a 

Change-Id: Ia54083330d8e8bde1f86821d9900644d73329bed
parents 0864b999 4da40a9a

adb/types.cpp

+1 −1
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ void IOVector::drop_front(IOVector::size_type len) { 
    auto dropped = 0u;

    while (dropped < len) {

        const auto next = chain_[start_index_].size() - begin_offset_;

        if (dropped + next < len) {

        if (dropped + next <= len) {

            pop_front_block();

            dropped += next;

        } else {

adb/types.h

+2 −2
Original line number Diff line number Diff line
@@ -155,7 +155,7 @@ struct IOVector { 
            return nullptr;

        }



        return chain_.front().data() + begin_offset_;

        return chain_[start_index_].data() + begin_offset_;

    }



    size_type front_size() const {
@@ -163,7 +163,7 @@ struct IOVector { 
            return 0;

        }



        return chain_.front().size() - begin_offset_;

        return chain_[start_index_].size() - begin_offset_;

    }



    size_type size() const { return chain_length_ - begin_offset_; }

adb/types_test.cpp

+17 −0
Original line number Diff line number Diff line
@@ -117,3 +117,20 @@ TEST(IOVector, misaligned_split) { 
    ASSERT_EQ(1ULL, bc.size());

    ASSERT_EQ(create_block("x"), bc.coalesce());

}



TEST(IOVector, drop_front) {

    IOVector vec;



    vec.append(create_block('x', 2));

    vec.append(create_block('y', 1000));

    ASSERT_EQ(2U, vec.front_size());

    ASSERT_EQ(1002U, vec.size());



    vec.drop_front(1);

    ASSERT_EQ(1U, vec.front_size());

    ASSERT_EQ(1001U, vec.size());



    vec.drop_front(1);

    ASSERT_EQ(1000U, vec.front_size());

    ASSERT_EQ(1000U, vec.size());

}