daily_automated

trunk/Arduino/hardware/custom/avr/zzz.libraries.old/SdFat/SdStream.cpp

@@ -0,0 +1,151 @@
+/* Arduino SdFat Library
+ * Copyright (C) 2012 by William Greiman
+ *
+ * This file is part of the Arduino SdFat Library
+ *
+ * This Library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Arduino SdFat Library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include <SdFat.h>
+
+//==============================================================================
+  /// @cond SHOW_PROTECTED
+int16_t SdStreamBase::getch() {
+  uint8_t c;
+  int8_t s = read(&c, 1);
+  if (s != 1) {
+    if (s < 0) {
+      setstate(badbit);
+    } else {
+      setstate(eofbit);
+    }
+    return -1;
+  }
+  if (c != '\r' || (getmode() & ios::binary)) return c;
+  s = read(&c, 1);
+  if (s == 1 && c == '\n') return c;
+  if (s == 1) seekCur(-1);
+  return '\r';
+}
+//------------------------------------------------------------------------------
+void SdStreamBase::open(const char* path, ios::openmode mode) {
+uint8_t flags;
+  switch (mode & (app | in | out | trunc)) {
+    case app | in:
+    case app | in | out:
+      flags = O_RDWR | O_APPEND | O_CREAT;
+      break;
+
+    case app:
+    case app | out:
+      flags = O_WRITE | O_APPEND | O_CREAT;
+      break;
+
+    case in:
+      flags = O_READ;
+      break;
+
+    case in | out:
+      flags = O_RDWR;
+      break;
+
+    case in | out | trunc:
+      flags = O_RDWR | O_TRUNC | O_CREAT;
+      break;
+
+    case out:
+    case out | trunc:
+      flags = O_WRITE | O_TRUNC | O_CREAT;
+      break;
+
+    default:
+      goto fail;
+  }
+  if (mode & ios::ate) flags |= O_AT_END;
+  if (!SdBaseFile::open(path, flags)) goto fail;
+  setmode(mode);
+  clear();
+  return;
+
+ fail:
+  SdBaseFile::close();
+  setstate(failbit);
+  return;
+}
+//------------------------------------------------------------------------------
+void SdStreamBase::putch(char c) {
+  if (c == '\n' && !(getmode() & ios::binary)) {
+    write('\r');
+  }
+  write(c);
+  if (writeError) setstate(badbit);
+}
+//------------------------------------------------------------------------------
+void SdStreamBase::putstr(const char* str) {
+  size_t n = 0;
+  while (1) {
+    char c = str[n];
+    if (c == '\0' || (c == '\n' && !(getmode() & ios::binary))) {
+      if (n > 0) write(str, n);
+      if (c == '\0') break;
+      write('\r');
+      str += n;
+      n = 0;
+    }
+    n++;
+  }
+  if (writeError) setstate(badbit);
+}
+//------------------------------------------------------------------------------
+/** Internal do not use
+ * \param[in] off
+ * \param[in] way
+ */
+bool SdStreamBase::seekoff(off_type off, seekdir way) {
+  pos_type pos;
+  switch (way) {
+    case beg:
+      pos = off;
+      break;
+
+    case cur:
+      pos = curPosition() + off;
+      break;
+
+    case end:
+      pos = fileSize() + off;
+      break;
+
+    default:
+      return false;
+  }
+  return seekpos(pos);
+}
+//------------------------------------------------------------------------------
+/** Internal do not use
+ * \param[in] pos
+ */
+bool SdStreamBase::seekpos(pos_type pos) {
+  return seekSet(pos);
+}
+//------------------------------------------------------------------------------
+int SdStreamBase::write(const void* buf, size_t n) {
+  return SdBaseFile::write(buf, n);
+}
+//------------------------------------------------------------------------------
+void SdStreamBase::write(char c) {
+  write(&c, 1);
+}
+/// @endcond