Port to CMake, get rid of os_int.h.

[stg.git] / stglibs / common.lib / blockio.cpp

diff --git a/stglibs/common.lib/blockio.cpp b/stglibs/common.lib/blockio.cpp
deleted file mode 100644 (file)
index 04fd1d8..0000000
--- a/stglibs/common.lib/blockio.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-#include "stg/blockio.h"
-
-namespace
-{
-
-void* adjust(void* base, size_t shift)
-{
-    char* ptr = static_cast<char*>(base);
-    return ptr + shift;
-}
-
-} // namspace anonymous
-
-using STG::BlockReader;
-using STG::BlockWriter;
-
-BlockReader::BlockReader(const IOVec& ioVec)
-    : m_dest(ioVec),
-      m_remainder(0)
-{
-    for (size_t i = 0; i < m_dest.size(); ++i)
-        m_remainder += m_dest[i].iov_len;
-}
-
-bool BlockReader::read(int socket)
-{
-    if (m_remainder == 0)
-        return true;
-
-    size_t offset = m_dest.size() - 1;
-    size_t toRead = m_remainder;
-    while (offset > 0) {
-        if (toRead < m_dest[offset].iov_len)
-            break;
-        toRead -= m_dest[offset].iov_len;
-        --offset;
-    }
-
-    IOVec dest(m_dest.size() - offset);
-    for (size_t i = 0; i < dest.size(); ++i) {
-        if (i == 0) {
-            dest[0].iov_len = toRead;
-            dest[0].iov_base = adjust(m_dest[offset].iov_base, m_dest[offset].iov_len - toRead);
-        } else {
-            dest[i] = m_dest[offset + i];
-        }
-    }
-
-    ssize_t res = readv(socket, dest.data(), dest.size());
-    if (res < 0)
-        return false;
-    if (res == 0)
-        return m_remainder == 0;
-    if (res < static_cast<ssize_t>(m_remainder))
-        m_remainder -= res;
-    else
-        m_remainder = 0;
-    return true;
-}
-
-BlockWriter::BlockWriter(const IOVec& ioVec)
-    : m_source(ioVec),
-      m_remainder(0)
-{
-    for (size_t i = 0; i < m_source.size(); ++i)
-        m_remainder += m_source[i].iov_len;
-}
-
-bool BlockWriter::write(int socket)
-{
-    if (m_remainder == 0)
-        return true;
-
-    size_t offset = m_source.size() - 1;
-    size_t toWrite = m_remainder;
-    while (offset > 0) {
-        if (toWrite < m_source[offset].iov_len)
-            break;
-        toWrite -= m_source[offset].iov_len;
-        --offset;
-    }
-
-    IOVec source(m_source.size() - offset);
-    for (size_t i = 0; i < source.size(); ++i) {
-        if (i == 0) {
-            source[0].iov_len = toWrite;
-            source[0].iov_base = adjust(m_source[offset].iov_base, m_source[offset].iov_len - toWrite);
-        } else {
-            source[i] = m_source[offset + i];
-        }
-    }
-    ssize_t res = writev(socket, source.data(), source.size());
-    if (res < 0)
-        return false;
-    if (res == 0)
-        return m_remainder == 0;
-    if (res < static_cast<ssize_t>(m_remainder))
-        m_remainder -= res;
-    else
-        m_remainder = 0;
-    return true;
-}