int WaypointMessageHelper::readWaypointMessageForTarget (const void *pWaypointMsgPayload,
uint32 ui32Offset, uint32 ui32TotalLen,
PreviousMessageIds &previouMessagesSentToTargets,
uint32 &ui32WaypointMsgPayloadLen)
{
ui32WaypointMsgPayloadLen = ui32TotalLen;
BufferReader br (pWaypointMsgPayload, ui32TotalLen);
br.setPosition (ui32Offset);
uint32 ui32LatestMessageSentLen = 0;
if (br.read32 (&ui32LatestMessageSentLen) < 0) {
return -1;
}
ui32WaypointMsgPayloadLen -= 4;
if (ui32LatestMessageSentLen > 0) {
static const uint16 BUF_LEN = 1024;
char buf[BUF_LEN];
if ((ui32LatestMessageSentLen + 1) > BUF_LEN) {
return -2;
}
if (br.readBytes (buf, ui32LatestMessageSentLen) < 0) {
return -3;
}
buf[ui32LatestMessageSentLen] = '\0';
previouMessagesSentToTargets = buf;
ui32WaypointMsgPayloadLen -= ui32LatestMessageSentLen;
}
return 0;
}
