source: mainline/uspace/lib/libc/generic/io/stream.c@ 8ccd2ea

/*
 * Copyright (c) 2006 Josef Cejka
 * Copyright (c) 2006 Jakub Vana
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup libc
 * @{
 */
/** @file
 */

#include <io/io.h>
#include <io/stream.h>
#include <string.h>
#include <malloc.h>
#include <libc.h>
#include <ipc/ipc.h>
#include <ipc/ns.h>
#include <ipc/fb.h>
#include <ipc/services.h>
#include <console.h>
#include <unistd.h>
#include <async.h>
#include <sys/types.h>

static int console_phone = -1;

ssize_t write_stderr(const void *buf, size_t count)
{
        return count;
}

ssize_t read_stdin(void *buf, size_t count)
{
        ipcarg_t r0, r1;
        size_t i = 0;

        while (i < count) {
                if (async_req_0_2(console_phone, CONSOLE_GETCHAR, &r0,
                    &r1) < 0) {
                        return -1;
                }
                ((char *) buf)[i++] = r0;
        }
        return i;
}

ssize_t write_stdout(const void *buf, size_t count)
{
        int i;

        for (i = 0; i < count; i++)
                async_msg_1(console_phone, CONSOLE_PUTCHAR,
                    ((const char *) buf)[i]);
        
        return count;
}

void open_stdin(void)
{
        if (console_phone < 0) {
                while ((console_phone = ipc_connect_me_to(PHONE_NS,
                    SERVICE_CONSOLE, 0, 0)) < 0) {
                        usleep(10000);
                }
        }
}

void open_stdout(void)
{
        if (console_phone < 0) {
                while ((console_phone = ipc_connect_me_to(PHONE_NS,
                    SERVICE_CONSOLE, 0, 0)) < 0) {
                        usleep(10000);
                }
        }
}

int get_cons_phone(void)
{
        return console_phone;
}

/** @}
 */