WebSVN – HelenOS – Diff – /branches/dynload/uspace/lib/libc/generic/io/stream.c


/*
 * 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)
{
    open_console();
    if (console_phone >= 0) {
        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;
    } else {
        return -1;
    }
}
 
ssize_t write_stdout(const void *buf, size_t count)
{
    open_console();
    if (console_phone >= 0) {
        int i;
   
        for (i = 0; i < count; i++)
            async_msg_1(console_phone, CONSOLE_PUTCHAR,
                ((const char *) buf)[i]);
       
        return count;
    } else
        return __SYSCALL3(SYS_KLOG, 1, (sysarg_t) buf, count);
}
 
void open_console(void)
{
    if (console_phone < 0) {
        int phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0, 0);
        if (phone >= 0)
            console_phone = phone;
    }
}
 
void klog_update(void)
{
    (void) __SYSCALL3(SYS_KLOG, 1, NULL, 0);
}
 
int get_cons_phone(void)
{
    open_console();
    return console_phone;
}
 
/** @}
 */
 

Rev 3150	Rev 3153
1	/*	1	/*
2	* Copyright (c) 2006 Josef Cejka	2	* Copyright (c) 2006 Josef Cejka
3	* Copyright (c) 2006 Jakub Vana	3	* Copyright (c) 2006 Jakub Vana
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	/** @addtogroup libc	30	/** @addtogroup libc
31	* @{	31	* @{
32	*/	32	*/
33	/** @file	33	/** @file
34	*/	34	*/
35		35
36	#include <io/io.h>	36	#include <io/io.h>
37	#include <io/stream.h>	37	#include <io/stream.h>
38	#include <string.h>	38	#include <string.h>
39	#include <malloc.h>	39	#include <malloc.h>
40	#include <libc.h>	40	#include <libc.h>
41	#include <ipc/ipc.h>	41	#include <ipc/ipc.h>
42	#include <ipc/ns.h>	42	#include <ipc/ns.h>
43	#include <ipc/fb.h>	43	#include <ipc/fb.h>
44	#include <ipc/services.h>	44	#include <ipc/services.h>
45	#include <console.h>	45	#include <console.h>
46	#include <unistd.h>	46	#include <unistd.h>
47	#include <async.h>	47	#include <async.h>
48	#include <sys/types.h>	48	#include <sys/types.h>
49		49
50	static int console_phone = -1;	50	static int console_phone = -1;
51		51
52	ssize_t write_stderr(const void *buf, size_t count)	52	ssize_t write_stderr(const void *buf, size_t count)
53	{	53	{
54	return count;	54	return count;
55	}	55	}
56		56
57	ssize_t read_stdin(void *buf, size_t count)	57	ssize_t read_stdin(void *buf, size_t count)
58	{	58	{
59	open_console();	59	open_console();
60	if (console_phone >= 0) {	60	if (console_phone >= 0) {
61	ipcarg_t r0, r1;	61	ipcarg_t r0, r1;
62	size_t i = 0;	62	size_t i = 0;
63		63
64	while (i < count) {	64	while (i < count) {
65	if (async_req_0_2(console_phone, CONSOLE_GETCHAR, &r0, &r1) < 0)	65	if (async_req_0_2(console_phone, CONSOLE_GETCHAR, &r0, &r1) < 0)
66	return -1;	66	return -1;
67	((char *) buf)[i++] = r0;	67	((char *) buf)[i++] = r0;
68	}	68	}
69	return i;	69	return i;
-		70	} else {
-		71	return -1;
70	}	72	}
71	}	73	}
72		74
73	ssize_t write_stdout(const void *buf, size_t count)	75	ssize_t write_stdout(const void *buf, size_t count)
74	{	76	{
75	open_console();	77	open_console();
76	if (console_phone >= 0) {	78	if (console_phone >= 0) {
77	int i;	79	int i;
78		80
79	for (i = 0; i < count; i++)	81	for (i = 0; i < count; i++)
80	async_msg_1(console_phone, CONSOLE_PUTCHAR,	82	async_msg_1(console_phone, CONSOLE_PUTCHAR,
81	((const char *) buf)[i]);	83	((const char *) buf)[i]);
82		84
83	return count;	85	return count;
84	} else	86	} else
85	return __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, count);	87	return __SYSCALL3(SYS_KLOG, 1, (sysarg_t) buf, count);
86	}	88	}
87		89
88	void open_console(void)	90	void open_console(void)
89	{	91	{
90	if (console_phone < 0) {	92	if (console_phone < 0) {
91	int phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0, 0);	93	int phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0, 0);
92	if (phone >= 0)	94	if (phone >= 0)
93	console_phone = phone;	95	console_phone = phone;
94	}	96	}
95	}	97	}
-		98
-		99	void klog_update(void)
-		100	{
-		101	(void) __SYSCALL3(SYS_KLOG, 1, NULL, 0);
-		102	}
96		103
97	int get_cons_phone(void)	104	int get_cons_phone(void)
98	{	105	{
99	open_console();	106	open_console();
100	return console_phone;	107	return console_phone;
101	}	108	}
102		109
103	/** @}	110	/** @}
104	*/	111	*/
105		112

Subversion Repositories HelenOS

(root)/branches/dynload/uspace/lib/libc/generic/io/stream.c – Rev 3150 → 3153