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Diffstat (limited to 'include/cdio/util.h')
-rw-r--r-- | include/cdio/util.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/cdio/util.h b/include/cdio/util.h new file mode 100644 index 00000000..81557dc7 --- /dev/null +++ b/include/cdio/util.h @@ -0,0 +1,117 @@ +/* + $Id: util.h,v 1.12 2008/03/25 15:59:10 karl Exp $ + + Copyright (C) 2004, 2005, 2006, 2008 Rocky Bernstein <rocky@gnu.org> + Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + 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 __CDIO_UTIL_H__ +#define __CDIO_UTIL_H__ + +/*! + \file util.h + \brief Miscellaneous utility functions. + + Warning: this will probably get removed/replaced by using glib.h +*/ +#include <stdlib.h> + +#undef MAX +#define MAX(a, b) (((a) > (b)) ? (a) : (b)) + +#undef MIN +#define MIN(a, b) (((a) < (b)) ? (a) : (b)) + +#undef IN +#define IN(x, low, high) ((x) >= (low) && (x) <= (high)) + +#undef CLAMP +#define CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x))) + +static inline uint32_t +_cdio_len2blocks (uint32_t i_len, uint16_t i_blocksize) +{ + uint32_t i_blocks; + + i_blocks = i_len / (uint32_t) i_blocksize; + if (i_len % i_blocksize) + i_blocks++; + + return i_blocks; +} + +/* round up to next block boundary */ +static inline unsigned +_cdio_ceil2block (unsigned offset, uint16_t i_blocksize) +{ + return _cdio_len2blocks (offset, i_blocksize) * i_blocksize; +} + +static inline unsigned int +_cdio_ofs_add (unsigned offset, unsigned length, uint16_t i_blocksize) +{ + if (i_blocksize - (offset % i_blocksize) < length) + offset = _cdio_ceil2block (offset, i_blocksize); + + offset += length; + + return offset; +} + +static inline const char * +_cdio_bool_str (bool b) +{ + return b ? "yes" : "no"; +} + +#ifdef __cplusplus +extern "C" { +#endif + +void * +_cdio_memdup (const void *mem, size_t count); + +char * +_cdio_strdup_upper (const char str[]); + +void +_cdio_strfreev(char **strv); + +size_t +_cdio_strlenv(char **str_array); + +char ** +_cdio_strsplit(const char str[], char delim); + +uint8_t cdio_to_bcd8(uint8_t n); +uint8_t cdio_from_bcd8(uint8_t p); + +void cdio_follow_symlink (const char * src, char * dst); + +#ifdef __cplusplus +} +#endif + +#endif /* __CDIO_UTIL_H__ */ + + +/* + * Local variables: + * c-file-style: "gnu" + * tab-width: 8 + * indent-tabs-mode: nil + * End: + */ |