aboutsummaryrefslogtreecommitdiff
path: root/src/libeinfo/einfo.h
blob: 6d39c364a4433e8d5fe7bab3cbfc0e1f5b68f05c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/*
 * Copyright 2007-2008 Roy Marples
 * All rights reserved

 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
 */

#ifndef __EINFO_H__
#define __EINFO_H__

#if defined(__GNUC__)
# define __EINFO_PRINTF  __attribute__ ((__format__ (__printf__, 1, 2)))
# define __EINFO_XPRINTF __attribute__ ((__noreturn__, __format__ (__printf__, 1, 2)))
# define __EEND_PRINTF   __attribute__ ((__format__ (__printf__, 2, 3)))
#else
# define __EINFO_PRINTF
# define __EINFO_XPRINTF
# define __EEND_PRINTF
#endif

#include <sys/types.h>
#include <stdbool.h>

/* Although OpenRC requires C99, linking to us should not. */
#ifdef restrict
# define __EINFO_RESTRICT restrict
#else
# ifdef __restrict
#  define __EINFO_RESTRICT __restrict
# else
#  define __EINFO_RESTRICT
# endif
#endif

/*! @brief Color types to use */
typedef enum
{
	ECOLOR_NORMAL	= 1,
	ECOLOR_GOOD	= 2,
	ECOLOR_WARN	= 3,
	ECOLOR_BAD	= 4,
	ECOLOR_HILITE	= 5,
	ECOLOR_BRACKET	= 6
} ECOLOR;

/*! @brief Returns the ASCII code for the color */
const char *ecolor(ECOLOR);

/*! @brief Writes to syslog. */
void elog(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;

/*!
 * @brief Display informational messages.
 *
 * The einfo family of functions display messages in a consistent manner
 * across applications. Basically they prefix the message with
 * " * ". If the terminal can handle color then we color the * based on
 * the command used. Otherwise we are identical to the printf function.
 *
 * - einfo  - green
 * - ewarn  - yellow
 * - eerror - red
 *
 * The n suffix denotes that no new line should be printed.
 * The v suffix means only print if EINFO_VERBOSE is yes.
 */
/*@{*/
int einfon(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int ewarnn(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int eerrorn(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int einfo(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int ewarn(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
void ewarnx(const char * __EINFO_RESTRICT, ...) __EINFO_XPRINTF;
int eerror(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
void eerrorx(const char * __EINFO_RESTRICT, ...) __EINFO_XPRINTF;

int einfovn(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int ewarnvn(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int ebeginvn(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int eendvn(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;
int ewendvn(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;
int einfov(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int ewarnv(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
/*@}*/

/*! @ingroup ebegin
 * @brief Display informational messages that may take some time.
 *
 * Similar to einfo, but we add ... to the end of the message */
/*@{*/
int ebeginv(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
int ebegin(const char * __EINFO_RESTRICT, ...) __EINFO_PRINTF;
/*@}*/

/*! @ingroup eend
 * @brief End an ebegin.
 *
 * If you ebegin, you should eend also.
 * eend places [ ok ] or [ !! ] at the end of the terminal line depending on
 * retval (0 or ok, anything else for !!)
 *
 * ebracket allows you to specifiy the position, color and message */
/*@{*/
int eend(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;
int ewend(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;
void ebracket(int, ECOLOR, const char * __EINFO_RESTRICT);

int eendv(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;
int ewendv(int, const char * __EINFO_RESTRICT, ...) __EEND_PRINTF;
/*@}*/

/*! @ingroup eindent
 * @brief Indents the einfo lines.
 *
 * For each indent you should outdent when done */
/*@{*/
void eindent(void);
void eoutdent(void);
void eindentv(void);
void eoutdentv(void);

/*! @brief Prefix each einfo line with something */
void eprefix(const char * __EINFO_RESTRICT);

#endif