Move most platform-specific code into overlay directories

[libs/core.git] / source / io / eventreader.cpp

diff --git a/source/io/eventreader.cpp b/source/io/eventreader.cpp
deleted file mode 100644 (file)
index 370ddf2..0000000
--- a/source/io/eventreader.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-#ifdef WIN32
-#include <windows.h>
-#endif
-#include <algorithm>
-#include <msp/core/systemerror.h>
-#include "eventreader.h"
-#include "handle_private.h"
-
-using namespace std;
-
-namespace Msp {
-namespace IO {
-
-struct EventReader::Private
-{
-#ifdef WIN32
-       OVERLAPPED *overlapped;
-       Handle event;
-       unsigned buf_size;
-       char *buffer;
-       unsigned buf_avail;
-       char *buf_next;
-#endif
-};
-
-
-EventReader::EventReader(Handle &h, unsigned size):
-       handle(h),
-       priv(0)
-{
-#ifdef WIN32
-       priv = new Private;
-
-       priv->overlapped = 0;
-       *priv->event = CreateEvent(0, true, false, 0);
-       priv->buf_size = size;
-       priv->buffer = new char[priv->buf_size];
-       priv->buf_avail = 0;
-       priv->buf_next = priv->buffer;
-#else
-       (void)size;
-#endif
-}
-
-EventReader::~EventReader()
-{
-#ifdef WIN32
-       CloseHandle(*priv->event);
-       delete priv->overlapped;
-       delete[] priv->buffer;
-#endif
-       delete priv;
-}
-
-const Handle &EventReader::get_event()
-{
-#ifdef WIN32
-       start();
-       return priv->event;
-#else
-       return handle;
-#endif
-}
-
-void EventReader::start()
-{
-#ifdef WIN32
-       if(priv->buf_avail || priv->overlapped)
-               return;
-
-       priv->overlapped = new OVERLAPPED;
-       memset(priv->overlapped, 0, sizeof(OVERLAPPED));
-       priv->overlapped->hEvent = *priv->event;
-
-       DWORD ret;
-       priv->buf_next = priv->buffer;
-       if(!ReadFile(*handle, priv->buffer, priv->buf_size, &ret, priv->overlapped))
-       {
-               unsigned err = GetLastError();
-               if(err!=ERROR_IO_PENDING)
-                       throw system_error("ReadFile");
-       }
-       else
-       {
-               priv->buf_avail = ret;
-               delete priv->overlapped;
-               priv->overlapped = 0;
-               SetEvent(*priv->event);
-       }
-#endif
-}
-
-void EventReader::wait()
-{
-#ifdef WIN32
-       if(!priv->overlapped)
-               return;
-
-       DWORD ret;
-       if(!GetOverlappedResult(*handle, priv->overlapped, &ret, true))
-               throw system_error("GetOverlappedResult");
-       else
-       {
-               priv->buf_avail = ret;
-               delete priv->overlapped;
-               priv->overlapped = 0;
-       }
-#endif
-}
-
-unsigned EventReader::read(char *buf, unsigned len)
-{
-#ifdef WIN32
-       if(!priv->buf_avail)
-       {
-               // No data in buffer, try to get some
-               start();
-               wait();
-       }
-
-       len = min(len, priv->buf_avail);
-       memcpy(buf, priv->buf_next, len);
-       priv->buf_next += len;
-       priv->buf_avail -= len;
-
-       if(!priv->buf_avail)
-       {
-               ResetEvent(*priv->event);
-               start();
-       }
-
-       return len;
-#else
-       return sys_read(handle, buf, len);
-#endif
-}
-
-} // namespace IO
-} // namespace Msp