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/*
* Copyright (C) 2010-2012 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses>.
*/
#ifndef __COMMON_UTILS_H__
#define __COMMON_UTILS_H__
#include <stdio.h>
#include <stdarg.h>
#if !defined(TRUE)
#define TRUE 1
#endif
#if !defined(FALSE)
#define FALSE 0
#endif
#define ARRAY_LEN(_arr) (sizeof(_arr) / sizeof(_arr[0]))
#define TAB " "
#define BIGTAB " "
typedef struct {
char **t; /* the text rows */
int n; /* number of rows */
int m; /* maximum row length */
} TextRows;
void *nvalloc(size_t size);
char *nvstrcat(const char *str, ...);
void *nvrealloc(void *ptr, size_t size);
char *nvstrdup(const char *s);
char *nvstrndup(const char *s, size_t n);
char *nvstrtolower(char *s);
void nvfree(void *s);
char *tilde_expansion(const char *str);
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);
void reset_current_terminal_width(unsigned short new_val);
void silence_fmt(int val);
void fmtout(const char *fmt, ...);
void fmtoutp(const char *prefix, const char *fmt, ...);
void fmterr(const char *fmt, ...);
void fmtwarn(const char *fmt, ...);
void fmt(FILE *stream, const char *prefix, const char *fmt, ...);
/*
* 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; \
\
(buf) = malloc(current_len); \
\
while (1) { \
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; \
} \
free(buf); \
(buf) = malloc(current_len); \
} \
} \
} while (0)
#endif /* __COMMON_UTILS_H__ */
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