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-rw-r--r--src/ByteBuffer.cpp98
1 files changed, 54 insertions, 44 deletions
diff --git a/src/ByteBuffer.cpp b/src/ByteBuffer.cpp
index d2d3beb97..1893d89a8 100644
--- a/src/ByteBuffer.cpp
+++ b/src/ByteBuffer.cpp
@@ -44,10 +44,10 @@
-#if 0
+#ifdef SELF_TEST
/// Self-test of the VarInt-reading and writing code
-class cByteBufferSelfTest
+static class cByteBufferSelfTest
{
public:
cByteBufferSelfTest(void)
@@ -62,11 +62,11 @@ public:
cByteBuffer buf(50);
buf.Write("\x05\xac\x02\x00", 4);
UInt32 v1;
- assert(buf.ReadVarInt(v1) && (v1 == 5));
+ assert_test(buf.ReadVarInt(v1) && (v1 == 5));
UInt32 v2;
- assert(buf.ReadVarInt(v2) && (v2 == 300));
+ assert_test(buf.ReadVarInt(v2) && (v2 == 300));
UInt32 v3;
- assert(buf.ReadVarInt(v3) && (v3 == 0));
+ assert_test(buf.ReadVarInt(v3) && (v3 == 0));
}
void TestWrite(void)
@@ -77,8 +77,8 @@ public:
buf.WriteVarInt(0);
AString All;
buf.ReadAll(All);
- assert(All.size() == 4);
- assert(memcmp(All.data(), "\x05\xac\x02\x00", All.size()) == 0);
+ assert_test(All.size() == 4);
+ assert_test(memcmp(All.data(), "\x05\xac\x02\x00", All.size()) == 0);
}
void TestWrap(void)
@@ -86,18 +86,18 @@ public:
cByteBuffer buf(3);
for (int i = 0; i < 1000; i++)
{
- int FreeSpace = buf.GetFreeSpace();
- assert(buf.GetReadableSpace() == 0);
- assert(FreeSpace > 0);
- assert(buf.Write("a", 1));
- assert(buf.CanReadBytes(1));
- assert(buf.GetReadableSpace() == 1);
+ size_t FreeSpace = buf.GetFreeSpace();
+ assert_test(buf.GetReadableSpace() == 0);
+ assert_test(FreeSpace > 0);
+ assert_test(buf.Write("a", 1));
+ assert_test(buf.CanReadBytes(1));
+ assert_test(buf.GetReadableSpace() == 1);
unsigned char v = 0;
- assert(buf.ReadByte(v));
- assert(v == 'a');
- assert(buf.GetReadableSpace() == 0);
+ assert_test(buf.ReadByte(v));
+ assert_test(v == 'a');
+ assert_test(buf.GetReadableSpace() == 0);
buf.CommitRead();
- assert(buf.GetFreeSpace() == FreeSpace); // We're back to normal
+ assert_test(buf.GetFreeSpace() == FreeSpace); // We're back to normal
}
}
@@ -171,21 +171,22 @@ cByteBuffer::~cByteBuffer()
-bool cByteBuffer::Write(const char * a_Bytes, int a_Count)
+bool cByteBuffer::Write(const char * a_Bytes, size_t a_Count)
{
CHECK_THREAD;
CheckValid();
// Store the current free space for a check after writing:
- int CurFreeSpace = GetFreeSpace();
- int CurReadableSpace = GetReadableSpace();
- int WrittenBytes = 0;
+ size_t CurFreeSpace = GetFreeSpace();
+ size_t CurReadableSpace = GetReadableSpace();
+ size_t WrittenBytes = 0;
if (CurFreeSpace < a_Count)
{
return false;
}
- int TillEnd = m_BufferSize - m_WritePos;
+ ASSERT(m_BufferSize >= m_WritePos);
+ size_t TillEnd = m_BufferSize - m_WritePos;
if (TillEnd <= a_Count)
{
// Need to wrap around the ringbuffer end
@@ -216,16 +217,20 @@ bool cByteBuffer::Write(const char * a_Bytes, int a_Count)
-int cByteBuffer::GetFreeSpace(void) const
+size_t cByteBuffer::GetFreeSpace(void) const
{
CHECK_THREAD;
CheckValid();
if (m_WritePos >= m_DataStart)
{
// Wrap around the buffer end:
+ ASSERT(m_BufferSize >= m_WritePos);
+ ASSERT((m_BufferSize - m_WritePos + m_DataStart) >= 1);
return m_BufferSize - m_WritePos + m_DataStart - 1;
}
// Single free space partition:
+ ASSERT(m_BufferSize >= m_WritePos);
+ ASSERT(m_BufferSize - m_WritePos >= 1);
return m_DataStart - m_WritePos - 1;
}
@@ -234,10 +239,12 @@ int cByteBuffer::GetFreeSpace(void) const
/// Returns the number of bytes that are currently in the ringbuffer. Note GetReadableBytes()
-int cByteBuffer::GetUsedSpace(void) const
+size_t cByteBuffer::GetUsedSpace(void) const
{
CHECK_THREAD;
CheckValid();
+ ASSERT(m_BufferSize >= GetFreeSpace());
+ ASSERT((m_BufferSize - GetFreeSpace()) >= 1);
return m_BufferSize - GetFreeSpace() - 1;
}
@@ -246,16 +253,18 @@ int cByteBuffer::GetUsedSpace(void) const
/// Returns the number of bytes that are currently available for reading (may be less than UsedSpace due to some data having been read already)
-int cByteBuffer::GetReadableSpace(void) const
+size_t cByteBuffer::GetReadableSpace(void) const
{
CHECK_THREAD;
CheckValid();
if (m_ReadPos > m_WritePos)
{
// Wrap around the buffer end:
+ ASSERT(m_BufferSize >= m_ReadPos);
return m_BufferSize - m_ReadPos + m_WritePos;
}
// Single readable space partition:
+ ASSERT(m_WritePos >= m_ReadPos);
return m_WritePos - m_ReadPos ;
}
@@ -263,7 +272,7 @@ int cByteBuffer::GetReadableSpace(void) const
-bool cByteBuffer::CanReadBytes(int a_Count) const
+bool cByteBuffer::CanReadBytes(size_t a_Count) const
{
CHECK_THREAD;
CheckValid();
@@ -274,7 +283,7 @@ bool cByteBuffer::CanReadBytes(int a_Count) const
-bool cByteBuffer::CanWriteBytes(int a_Count) const
+bool cByteBuffer::CanWriteBytes(size_t a_Count) const
{
CHECK_THREAD;
CheckValid();
@@ -450,7 +459,7 @@ bool cByteBuffer::ReadVarUTF8String(AString & a_Value)
}
if (Size > MAX_STRING_SIZE)
{
- LOGWARNING("%s: String too large: %llu (%llu KiB)", __FUNCTION__, Size, Size / 1024);
+ LOGWARNING("%s: String too large: %u (%u KiB)", __FUNCTION__, Size, Size / 1024);
}
return ReadString(a_Value, (int)Size);
}
@@ -650,15 +659,14 @@ bool cByteBuffer::WriteLEInt(int a_Value)
-bool cByteBuffer::ReadBuf(void * a_Buffer, int a_Count)
+bool cByteBuffer::ReadBuf(void * a_Buffer, size_t a_Count)
{
CHECK_THREAD;
CheckValid();
- ASSERT(a_Count >= 0);
NEEDBYTES(a_Count);
char * Dst = (char *)a_Buffer; // So that we can do byte math
- int BytesToEndOfBuffer = m_BufferSize - m_ReadPos;
- ASSERT(BytesToEndOfBuffer >= 0); // Sanity check
+ ASSERT(m_BufferSize >= m_ReadPos);
+ size_t BytesToEndOfBuffer = m_BufferSize - m_ReadPos;
if (BytesToEndOfBuffer <= a_Count)
{
// Reading across the ringbuffer end, read the first part and adjust parameters:
@@ -684,14 +692,14 @@ bool cByteBuffer::ReadBuf(void * a_Buffer, int a_Count)
-bool cByteBuffer::WriteBuf(const void * a_Buffer, int a_Count)
+bool cByteBuffer::WriteBuf(const void * a_Buffer, size_t a_Count)
{
CHECK_THREAD;
CheckValid();
- ASSERT(a_Count >= 0);
PUTBYTES(a_Count);
char * Src = (char *)a_Buffer; // So that we can do byte math
- int BytesToEndOfBuffer = m_BufferSize - m_WritePos;
+ ASSERT(m_BufferSize >= m_ReadPos);
+ size_t BytesToEndOfBuffer = m_BufferSize - m_WritePos;
if (BytesToEndOfBuffer <= a_Count)
{
// Reading across the ringbuffer end, read the first part and adjust parameters:
@@ -714,22 +722,22 @@ bool cByteBuffer::WriteBuf(const void * a_Buffer, int a_Count)
-bool cByteBuffer::ReadString(AString & a_String, int a_Count)
+bool cByteBuffer::ReadString(AString & a_String, size_t a_Count)
{
CHECK_THREAD;
CheckValid();
- ASSERT(a_Count >= 0);
NEEDBYTES(a_Count);
a_String.clear();
a_String.reserve(a_Count);
- int BytesToEndOfBuffer = m_BufferSize - m_ReadPos;
- ASSERT(BytesToEndOfBuffer >= 0); // Sanity check
+ ASSERT(m_BufferSize >= m_ReadPos);
+ size_t BytesToEndOfBuffer = m_BufferSize - m_ReadPos;
if (BytesToEndOfBuffer <= a_Count)
{
// Reading across the ringbuffer end, read the first part and adjust parameters:
if (BytesToEndOfBuffer > 0)
{
a_String.assign(m_Buffer + m_ReadPos, BytesToEndOfBuffer);
+ ASSERT(a_Count >= BytesToEndOfBuffer);
a_Count -= BytesToEndOfBuffer;
}
m_ReadPos = 0;
@@ -759,7 +767,7 @@ bool cByteBuffer::ReadUTF16String(AString & a_String, int a_NumChars)
{
return false;
}
- RawBEToUTF8((short *)(RawData.data()), a_NumChars, a_String);
+ RawBEToUTF8(RawData.data(), a_NumChars, a_String);
return true;
}
@@ -767,11 +775,10 @@ bool cByteBuffer::ReadUTF16String(AString & a_String, int a_NumChars)
-bool cByteBuffer::SkipRead(int a_Count)
+bool cByteBuffer::SkipRead(size_t a_Count)
{
CHECK_THREAD;
CheckValid();
- ASSERT(a_Count >= 0);
if (!CanReadBytes(a_Count))
{
return false;
@@ -809,6 +816,7 @@ bool cByteBuffer::ReadToByteBuffer(cByteBuffer & a_Dst, size_t a_NumBytes)
size_t num = (a_NumBytes > sizeof(buf)) ? sizeof(buf) : a_NumBytes;
VERIFY(ReadBuf(buf, num));
VERIFY(a_Dst.Write(buf, num));
+ ASSERT(a_NumBytes >= num);
a_NumBytes -= num;
}
return true;
@@ -846,13 +854,15 @@ void cByteBuffer::ReadAgain(AString & a_Out)
// Used by ProtoProxy to repeat communication twice, once for parsing and the other time for the remote party
CHECK_THREAD;
CheckValid();
- int DataStart = m_DataStart;
+ size_t DataStart = m_DataStart;
if (m_ReadPos < m_DataStart)
{
// Across the ringbuffer end, read the first part and adjust next part's start:
+ ASSERT(m_BufferSize >= m_DataStart);
a_Out.append(m_Buffer + m_DataStart, m_BufferSize - m_DataStart);
DataStart = 0;
}
+ ASSERT(m_ReadPos >= DataStart);
a_Out.append(m_Buffer + DataStart, m_ReadPos - DataStart);
}
@@ -860,7 +870,7 @@ void cByteBuffer::ReadAgain(AString & a_Out)
-void cByteBuffer::AdvanceReadPos(int a_Count)
+void cByteBuffer::AdvanceReadPos(size_t a_Count)
{
CHECK_THREAD;
CheckValid();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 20:20:13 +0100