Diff: cpp/Stream.cpp

Revision:

0:fd0d7bdfcdc2

Child:

2:143cac498751

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cpp/Stream.cpp	Tue Nov 20 17:24:08 2012 +0000
@@ -0,0 +1,117 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "Stream.h"
+
+#include <cstdarg>
+
+namespace mbed {
+
+Stream::Stream(void) {
+    /* open ourselves */
+    char buf[12]; /* :0x12345678 + null byte */
+    std::sprintf(buf, ":%p", this);
+    _file = std::fopen(buf, "w+");
+    setbuf(_file, NULL);
+}
+
+Stream::~Stream() {
+    fclose(_file);
+}
+
+int Stream::putc(int c) {
+    fflush(_file);
+    return std::fputc(c, _file);
+}
+int Stream::puts(const char *s) {
+    fflush(_file);
+    return std::fputs(s, _file);
+}
+int Stream::getc() {
+    fflush(_file);
+    return std::fgetc(_file);
+}
+char* Stream::gets(char *s, int size) {
+    fflush(_file);
+    return std::fgets(s,size,_file);
+}
+
+int Stream::close() {
+    return 0;
+}
+
+ssize_t Stream::write(const void* buffer, size_t length) {
+    const char* ptr = (const char*)buffer;
+    const char* end = ptr + length;
+    while (ptr != end) {
+        if (_putc(*ptr++) == EOF) {
+            break;
+        }
+    }
+    return ptr - (const char*)buffer;
+}
+
+ssize_t Stream::read(void* buffer, size_t length) {
+    char* ptr = (char*)buffer;
+    char* end = ptr + length;
+    while (ptr != end) {
+        int c = _getc();
+        if (c==EOF) break;
+        *ptr++ = c;
+    }
+    return ptr - (const char*)buffer;
+}
+
+off_t Stream::lseek(off_t offset, int whence) {
+    return 0;
+}
+
+int Stream::isatty() {
+    return 0;
+}
+
+int Stream::fsync() {
+    return 0;
+}
+
+off_t Stream::flen() {
+    return 0;
+}
+
+int Stream::printf(const char* format, ...) {
+    std::va_list arg;
+    va_start(arg, format);
+    fflush(_file);
+    int r = vfprintf(_file, format, arg);
+    va_end(arg);
+    return r;
+}
+
+int Stream::scanf(const char* format, ...) {
+    std::va_list arg;
+    va_start(arg, format);
+    fflush(_file);
+    int r = vfscanf(_file, format, arg);
+    va_end(arg);
+    return r;
+}
+
+} // namespace mbed