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Added ringbuffer test.

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This commit is contained in:
Branimir Karadžić
2017-03-08 21:46:53 -08:00
parent 2b46499044
commit 7414d14300
2 changed files with 22 additions and 2 deletions
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4
include/bx/inline/ringbuffer.inl
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@@ -38,13 +38,13 @@ namespace bx
return size;
}
inline uint32_t RingBufferControl::reserve(uint32_t _size)
inline uint32_t RingBufferControl::reserve(uint32_t _size, bool _mustSucceed)
{
const uint32_t dist = distance(m_write, m_read)-1;
const uint32_t maxSize = uint32_sels(dist, m_size-1, dist);
const uint32_t sizeNoSign = uint32_and(_size, 0x7fffffff);
const uint32_t test = uint32_sub(sizeNoSign, maxSize);
const uint32_t size = uint32_sels(test, _size, maxSize);
const uint32_t size = uint32_sels(test, _size, _mustSucceed ? 0 : maxSize);
const uint32_t advance = uint32_add(m_write, size);
const uint32_t write = uint32_mod(advance, m_size);
m_write = write;

20
tests/ringbuffer_test.cpp Normal file
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@@ -0,0 +1,20 @@
/*
* Copyright 2010-2017 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bx#license-bsd-2-clause
*/
#include "test.h"
#include <bx/ringbuffer.h>
TEST_CASE("RingBufferControl", "")
{
bx::RingBufferControl control(16);
REQUIRE(1 == control.reserve(1) );
REQUIRE(0 == control.reserve(16, true) );
REQUIRE(14 == control.reserve(16) );
REQUIRE(15 == control.commit(15) );
REQUIRE(15 == control.available() );
REQUIRE(15 == control.consume(15) );
REQUIRE(0 == control.available() );
}