File content as of revision 0:fd0d7bdfcdc2:

/* 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