Subversion Repositories HelenOS

Rev

Rev 3386 | Rev 4327 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3386 Rev 4263
1 
/*
 1 
/*
2 
 * Copyright (c) 2006 Josef Cejka
 2 
 * Copyright (c) 2006 Josef Cejka
3 
 * All rights reserved.
 3 
 * All rights reserved.
4 
 *
 4 
 *
5 
 * Redistribution and use in source and binary forms, with or without
 5 
 * Redistribution and use in source and binary forms, with or without
6 
 * modification, are permitted provided that the following conditions
 6 
 * modification, are permitted provided that the following conditions
7 
 * are met:
 7 
 * are met:
8 
 *
 8 
 *
9 
 * - Redistributions of source code must retain the above copyright
 9 
 * - Redistributions of source code must retain the above copyright
10 
 *   notice, this list of conditions and the following disclaimer.
 10 
 *   notice, this list of conditions and the following disclaimer.
11 
 * - Redistributions in binary form must reproduce the above copyright
 11 
 * - Redistributions in binary form must reproduce the above copyright
12 
 *   notice, this list of conditions and the following disclaimer in the
 12 
 *   notice, this list of conditions and the following disclaimer in the
13 
 *   documentation and/or other materials provided with the distribution.
 13 
 *   documentation and/or other materials provided with the distribution.
14 
 * - The name of the author may not be used to endorse or promote products
 14 
 * - The name of the author may not be used to endorse or promote products
15 
 *   derived from this software without specific prior written permission.
 15 
 *   derived from this software without specific prior written permission.
16 
 *
 16 
 *
17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
 27 
 */
28 
 
 28 
 
29 
/** @addtogroup libc
 29 
/** @addtogroup libc
30 
 * @{
 30 
 * @{
31 
 */
 31 
 */
32 
/** @file
 32 
/** @file
33 
 */
 33 
 */
34 
 
 34 
 
35 
#include <stdarg.h>
 35 
#include <stdarg.h>
36 
#include <stdio.h>
 36 
#include <stdio.h>
37 
#include <unistd.h>
 37 
#include <unistd.h>
38 
#include <io/printf_core.h>
 38 
#include <io/printf_core.h>
39 
#include <futex.h>
 39 
#include <futex.h>
40 
#include <async.h>
 40 
#include <async.h>
41 
 
 41 
 
42 
static atomic_t printf_futex = FUTEX_INITIALIZER;
 42 
static atomic_t printf_futex = FUTEX_INITIALIZER;
43 
 
 43 
 
44 
static int vprintf_write(const char *str, size_t count, void *unused)
 44 
static int vprintf_str_write(const char *str, size_t size, void *data)
45 
{
 45 
{
- 
 
 46 
    size_t offset = 0;
- 
 
 47 
    size_t prev;
- 
 
 48 
    count_t chars = 0;
- 
 
 49 
   
- 
 
 50 
    while (offset < size) {
- 
 
 51 
        prev = offset;
- 
 
 52 
        str_decode(str, &offset, size);
46 
    return write_stdout(str, count);
 53 
        write_stdout(str + prev, offset - prev);
- 
 
 54 
        chars++;
- 
 
 55 
    }
- 
 
 56 
   
- 
 
 57 
    return chars;
47 
}
 58 
}
48 
 
 59 
 
- 
 
 60 
static int vprintf_wstr_write(const wchar_t *str, size_t size, void *data)
- 
 
 61 
{
- 
 
 62 
    size_t offset = 0;
- 
 
 63 
    size_t boff;
- 
 
 64 
    count_t chars = 0;
- 
 
 65 
    char buf[4];
- 
 
 66 
   
- 
 
 67 
    while (offset < size) {
- 
 
 68 
        boff = 0;
- 
 
 69 
        chr_encode(str[chars], buf, &boff, 4);
- 
 
 70 
        write_stdout(buf, boff);
- 
 
 71 
        chars++;
- 
 
 72 
        offset += sizeof(wchar_t);
- 
 
 73 
    }
- 
 
 74 
   
- 
 
 75 
    return chars;
- 
 
 76 
}
- 
 
 77 
 
- 
 
 78 
 
49 
/** Print formatted text.
 79 
/** Print formatted text.
50 
 * @param fmt   format string
 80 
 * @param fmt   format string
51 
 * @param ap    format parameters
 81 
 * @param ap    format parameters
52 
 * \see For more details about format string see printf_core.
 82 
 * \see For more details about format string see printf_core.
53 
 */
 83 
 */
54 
int vprintf(const char *fmt, va_list ap)
 84 
int vprintf(const char *fmt, va_list ap)
55 
{
 85 
{
56 
    struct printf_spec ps = {
 86 
    struct printf_spec ps = {
- 
 
 87 
        vprintf_str_write,
57 
        (int (*)(void *, size_t, void *)) vprintf_write,
 88 
        vprintf_wstr_write,
58 
         NULL
 89 
         NULL
59 
    };
 90 
    };
60 
    /*
 91 
    /*
61 
     * Prevent other threads to execute printf_core()
 92 
     * Prevent other threads to execute printf_core()
62 
     */
 93 
     */
63 
    futex_down(&printf_futex);
 94 
    futex_down(&printf_futex);
64 
    /*
 95 
    /*
65 
     * Prevent other pseudo threads of the same thread
 96 
     * Prevent other pseudo threads of the same thread
66 
     * to execute printf_core()
 97 
     * to execute printf_core()
67 
     */
 98 
     */
68 
    async_serialize_start();
 99 
    async_serialize_start();
69 
    int ret = printf_core(fmt, &ps, ap);
 100 
    int ret = printf_core(fmt, &ps, ap);
70 
    async_serialize_end();
 101 
    async_serialize_end();
71 
    futex_up(&printf_futex);
 102 
    futex_up(&printf_futex);
72 
    return ret;
 103 
    return ret;
73 
}
 104 
}
74 
 
 105 
 
75 
/** @}
 106 
/** @}
76 
 */
 107 
 */
77 
 
 108