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/*
* Copyright (C) 2004 NVIDIA Corporation.
*
* 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.
*/
#ifndef __MSG_H__
#define __MSG_H__
#include <stdarg.h>
#include <stdio.h>
/*
* Define a printf format attribute macro. This definition is based on the one
* from Xfuncproto.h, available in the 'xproto' package at
* http://xorg.freedesktop.org/releases/individual/proto/
*/
#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 203)
# define NV_ATTRIBUTE_PRINTF(x,y) __attribute__((__format__(__printf__,x,y)))
#else /* not gcc >= 2.3 */
# define NV_ATTRIBUTE_PRINTF(x,y)
#endif
/*
* NV_VSNPRINTF(): macro that assigns buf using vsnprintf(). This is
* correct for differing semantics of the vsnprintf() return value:
*
* -1 when the buffer is not long enough (glibc < 2.1)
*
* or
*
* the length the string would have been if the buffer had been large
* enough (glibc >= 2.1)
*
* This macro allocates memory for buf; the caller should free it when
* done.
*/
#define NV_FMT_BUF_LEN 256
#define NV_VSNPRINTF(buf, fmt) \
do { \
if (!fmt) { \
(buf) = NULL; \
} else { \
va_list ap; \
int len, current_len = NV_FMT_BUF_LEN; \
\
while (1) { \
(buf) = nvalloc(current_len); \
\
va_start(ap, fmt); \
len = vsnprintf((buf), current_len, (fmt), ap); \
va_end(ap); \
\
if ((len > -1) && (len < current_len)) { \
break; \
} else if (len > -1) { \
current_len = len + 1; \
} else { \
current_len += NV_FMT_BUF_LEN; \
} \
\
nvfree(buf); \
} \
} \
} while (0)
/*
* verbosity, controls output of errors, warnings and other
* information.
*/
typedef enum {
NV_VERBOSITY_NONE = 0, /* no errors, warnings or info */
NV_VERBOSITY_ERROR, /* errors only */
NV_VERBOSITY_DEPRECATED, /* errors and deprecation messages */
NV_VERBOSITY_WARNING, /* errors and all warnings */
NV_VERBOSITY_ALL, /* errors, all warnings and other info */
NV_VERBOSITY_DEFAULT = NV_VERBOSITY_ALL
} NvVerbosity;
NvVerbosity nv_get_verbosity(void);
void nv_set_verbosity(NvVerbosity level);
/*
* Formatted I/O functions
*/
void reset_current_terminal_width(unsigned short new_val);
void nv_error_msg(const char *fmt, ...) NV_ATTRIBUTE_PRINTF(1, 2);
void nv_deprecated_msg(const char *fmt, ...) NV_ATTRIBUTE_PRINTF(1, 2);
void nv_warning_msg(const char *fmt, ...) NV_ATTRIBUTE_PRINTF(1, 2);
void nv_info_msg(const char *prefix,
const char *fmt, ...) NV_ATTRIBUTE_PRINTF(2, 3);
void nv_info_msg_to_file(FILE *stream,
const char *prefix,
const char *fmt, ...) NV_ATTRIBUTE_PRINTF(3, 4);
void nv_msg(const char *prefix, const char *fmt, ...) NV_ATTRIBUTE_PRINTF(2, 3);
void nv_msg_preserve_whitespace(const char *prefix,
const char *fmt, ...) NV_ATTRIBUTE_PRINTF(2, 3);
/*
* TextRows structure and helper functions
*/
typedef struct {
char **t; /* the text rows */
int n; /* number of rows */
int m; /* maximum row length */
} TextRows;
TextRows *nv_format_text_rows(const char *prefix, const char *str, int width,
int word_boundary);
void nv_text_rows_append(TextRows *t, const char *msg);
void nv_concat_text_rows(TextRows *t0, TextRows *t1);
void nv_free_text_rows(TextRows *t);
#endif /* __MSG_H__ */
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