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SerialRB now inherits from RingBuffer

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This commit is contained in:
Geoffrey Merck
2020-05-09 19:57:40 +02:00
parent 05d21c0a14
commit b0ba3b5dd8
3 changed files with 9 additions and 99 deletions
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SerialRB.cpp
+6 -70
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@@ -21,80 +21,16 @@ Boston, MA 02110-1301, USA.
#include "SerialRB.h"
CSerialRB::CSerialRB(uint16_t length) :
m_length(length),
m_head(0U),
m_tail(0U),
m_full(false)
CRingBuffer<uint8_t>(length)
{
m_buffer = new uint8_t[length];
}
void CSerialRB::reset()
{
m_head = 0U;
m_tail = 0U;
m_full = false;
}
uint16_t CSerialRB::getSpace() const
{
uint16_t n = 0U;
if (m_tail == m_head)
n = m_full ? 0U : m_length;
else if (m_tail < m_head)
n = m_length - m_head + m_tail;
else
n = m_tail - m_head;
if (n > m_length)
n = 0U;
return n;
}
uint16_t CSerialRB::getData() const
{
if (m_tail == m_head)
return m_full ? m_length : 0U;
else if (m_tail < m_head)
return m_head - m_tail;
else
return m_length - m_tail + m_head;
}
bool CSerialRB::put(uint8_t c)
{
if (m_full)
return false;
m_buffer[m_head] = c;
m_head++;
if (m_head >= m_length)
m_head = 0U;
if (m_head == m_tail)
m_full = true;
return true;
}
uint8_t CSerialRB::peek() const
{
return m_buffer[m_tail];
}
uint8_t CSerialRB::get()
{
uint8_t value = m_buffer[m_tail];
m_full = false;
m_tail++;
if (m_tail >= m_length)
m_tail = 0U;
return value;
uint8_t value;
if(CRingBuffer<uint8_t>::get(value))
return value;
return 0U;
}