1 files changed, 111 insertions, 0 deletions
diff --git a/src/stdiodevice.cc b/src/stdiodevice.cc
new file mode 100644
index 0000000..9eb5f9c
--- /dev/null
+++ b/src/stdiodevice.cc
@@ -0,0 +1,111 @@
+/**  --------------------------------------------------------------------
+ *  @file stdiodevice.cc
+ *  @brief Implementation of the StdIODevice class
+ *  @author Andreas Aardal Hanssen
+ *  @date 2003/2023
+ *  ----------------------------------------------------------------  **/
+#include "stdiodevice.h"
+#include <string>
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <errno.h>
+
+using namespace ::std;
+using namespace ::Binc;
+
+//------------------------------------------------------------------------
+StdIODevice::StdIODevice(int f) : IODevice(f)
+{
+}
+
+//------------------------------------------------------------------------
+StdIODevice::~StdIODevice(void)
+{
+}
+
+//------------------------------------------------------------------------
+string StdIODevice::service(void) const
+{
+  return "client";
+}
+
+//------------------------------------------------------------------------
+bool StdIODevice::canRead(void) const
+{
+  size_t bytes;
+  return ioctl(fileno(stdin), FIONREAD, (char *) &bytes) > 0;
+}
+
+//------------------------------------------------------------------------
+bool StdIODevice::waitForWrite(void) const
+{
+  fd_set writeMask;
+  FD_ZERO(&writeMask);
+  FD_SET(fileno(stdout), &writeMask);
+
+  struct timeval tv;
+  tv.tv_sec = timeout;
+  tv.tv_usec = 0;
+
+  int result = select(fileno(stdout) + 1, 0, &writeMask, 0, timeout ? &tv : 0);
+  if (result == 0) error = Timeout;
+  return result > 0;
+}
+
+//------------------------------------------------------------------------
+bool StdIODevice::waitForRead(void) const
+{
+  fd_set readMask;
+  FD_ZERO(&readMask);
+  FD_SET(fileno(stdin), &readMask);
+
+  struct timeval tv;
+  tv.tv_sec = timeout;
+  tv.tv_usec = 0;
+
+  int result = select(fileno(stdin) + 1, &readMask, 0, 0, timeout ? &tv : 0);
+  if (result == 0) error = Timeout;
+  return result > 0;
+}
+
+//------------------------------------------------------------------------
+IODevice::WriteResult StdIODevice::write(void)
+{
+  for (;;) {
+    ssize_t wrote = ::write(fileno(stdout), outputBuffer.str().c_str(),
+                            outputBuffer.getSize());
+
+    if (wrote == -1) {
+      if (errno == EINTR)
+        continue;
+      else
+        return WriteError;
+    }
+
+    outputBuffer.popString(wrote);
+
+    if (wrote == (ssize_t) outputBuffer.getSize())
+      return WriteDone;
+    return WriteWait;
+  }
+}
+
+//------------------------------------------------------------------------
+bool StdIODevice::fillInputBuffer(void)
+{
+  if (!waitForRead())
+    return false;
+
+  char buf[4096];
+  ssize_t red = read(fileno(stdin), buf, sizeof(buf) - 1);
+  if (red <= 0)
+    return false;
+
+  buf[red] = '\0';
+  inputBuffer << buf;
+  return true;
+}