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Commit 97e2bcd7 authored by Dianne Hackborn's avatar Dianne Hackborn
Browse files

Rewrite battery history storage. 

We now write battery history directly into a buffer, instead of
creating objects.  This allows for more efficient storage; later
it can be even better because we can only write deltas.

The old code is still there temporarily for validation.

Change-Id: I9707d4d8ff30855be8ebdc93bc078911040d8e0b
parent 4849bc5b

libs/binder/Parcel.cpp

+11 −7
Original line number Diff line number Diff line
@@ -338,7 +338,7 @@ void Parcel::setDataPosition(size_t pos) const 


status_t Parcel::setDataCapacity(size_t size)

{

    if (size > mDataSize) return continueWrite(size);

    if (size > mDataCapacity) return continueWrite(size);

    return NO_ERROR;

}
@@ -386,11 +386,13 @@ status_t Parcel::appendFrom(Parcel *parcel, size_t offset, size_t len) 
    }

    int numObjects = lastIndex - firstIndex + 1;



    if ((mDataSize+len) > mDataCapacity) {

        // grow data

        err = growData(len);

        if (err != NO_ERROR) {

            return err;

        }

    }



    // append data

    memcpy(mData + mDataPos, data + offset, len);
@@ -1384,8 +1386,10 @@ status_t Parcel::continueWrite(size_t desired) 
                return NO_MEMORY;

            }

        } else {

            if (mDataSize > desired) {

                mDataSize = desired;

                LOGV("continueWrite Setting data size of %p to %d\n", this, mDataSize);

            }

            if (mDataPos > desired) {

                mDataPos = desired;

                LOGV("continueWrite Setting data pos of %p to %d\n", this, mDataPos);