190 lines
6.8 KiB
C
190 lines
6.8 KiB
C
/******************************************************************************
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* $Id$
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*
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* Copyright (c) 2005-2007 Transmission authors and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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#ifndef TR_UTILS_H
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#define TR_UTILS_H 1
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#include <inttypes.h>
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#include <stdarg.h>
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#include <stddef.h> /* for size_t */
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#include <stdio.h> /* FILE* */
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void tr_msgInit( void );
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#define tr_err( a... ) tr_msg( TR_MSG_ERR, ## a )
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#define tr_inf( a... ) tr_msg( TR_MSG_INF, ## a )
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#define tr_dbg( a... ) tr_msg( TR_MSG_DBG, ## a )
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void tr_msg ( int level, char * msg, ... );
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FILE* tr_getLog( void );
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int tr_rand ( int );
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void * tr_memmem( const void *, size_t, const void *, size_t );
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/***********************************************************************
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* tr_mkdirp
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***********************************************************************
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* Create a directory and any needed parent directories.
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* Note that the string passed in must be writable!
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**********************************************************************/
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int tr_mkdirp( char * path, int permissions );
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int tr_mkdir( const char * path, int permissions );
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/***********************************************************************
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* tr_strcasecmp
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***********************************************************************
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* A case-insensitive strncmp()
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**********************************************************************/
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#define tr_strcasecmp( ff, ss ) ( tr_strncasecmp( (ff), (ss), ULONG_MAX ) )
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int tr_strncasecmp( const char * first, const char * second, size_t len );
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/***********************************************************************
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* tr_sprintf
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***********************************************************************
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* Appends to the end of a buffer using printf formatting,
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* growing the buffer if needed
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**********************************************************************/
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int tr_sprintf( char ** buf, int * used, int * max,
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const char * format, ... );
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/* gee, it sure would be nice if BeOS had va_copy() */
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int tr_vsprintf( char **, int *, int *, const char *, va_list, va_list );
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/* this concatenates some binary data onto the end of a buffer */
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int tr_concat( char ** buf, int * used, int * max,
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const char * data, int len );
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/* creates a filename from a series of elements using the
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correct separator for filenames. */
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void tr_buildPath ( char* buf, size_t buflen,
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const char * first_element, ... );
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struct timeval timevalSec ( int seconds );
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struct timeval timevalMsec ( int milliseconds );
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int tr_ioErrorFromErrno( void );
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char * tr_errorString( int code );
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/* return the current date in milliseconds */
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uint64_t tr_date( void );
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/* wait the specified number of milliseconds */
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void tr_wait( uint64_t delay_milliseconds );
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/***********************************************************************
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* strlcat_utf8
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***********************************************************************
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* According to the official specification, all strings in the torrent
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* file are supposed to be UTF-8 encoded. However, there are
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* non-compliant torrents around... If we encounter an invalid UTF-8
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* character, we assume it is ISO 8859-1 and convert it to UTF-8.
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**********************************************************************/
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void strlcat_utf8( void *, const void *, size_t, char );
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size_t bufsize_utf8( const void *, int * );
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/***
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****
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***/
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/* Sometimes the system defines MAX/MIN, sometimes not. In the latter
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case, define those here since we will use them */
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#ifndef MAX
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#define MAX(a,b) ((a)>(b)?(a):(b))
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#endif
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#ifndef MIN
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#define MIN(a,b) ((a)>(b)?(b):(a))
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#endif
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/***
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****
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***/
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#define tr_new(struct_type, n_structs) \
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((struct_type *) tr_malloc (((size_t) sizeof (struct_type)) * ((size_t) (n_structs))))
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#define tr_new0(struct_type, n_structs) \
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((struct_type *) tr_malloc0 (((size_t) sizeof (struct_type)) * ((size_t) (n_structs))))
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#define tr_renew(struct_type, mem, n_structs) \
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((struct_type *) realloc ((mem), ((size_t) sizeof (struct_type)) * ((size_t) (n_structs))))
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void* tr_malloc ( size_t );
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void* tr_malloc0 ( size_t );
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void* tr_calloc ( size_t nmemb, size_t size );
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void tr_free ( void* );
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char* tr_strdup( const char * str );
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char* tr_strndup( const char * str, int len );
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/***
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****
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***/
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typedef void (tr_set_func)(void * element, void * userData );
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void tr_set_compare( const void * a, size_t aCount,
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const void * b, size_t bCount,
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int compare( const void * a, const void * b ),
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size_t elementSize,
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tr_set_func in_a_cb,
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tr_set_func in_b_cb,
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tr_set_func in_both_cb,
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void * userData );
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int tr_compareUint8 ( uint8_t a, uint8_t b );
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int tr_compareUint16( uint16_t a, uint16_t b );
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int tr_compareUint32( uint32_t a, uint32_t b );
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int tr_compareUint64( uint64_t a, uint64_t b );
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/***
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****
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***/
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struct tr_bitfield
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{
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uint8_t * bits;
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size_t len;
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};
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typedef struct tr_bitfield tr_bitfield;
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typedef struct tr_bitfield tr_bitfield_t;
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tr_bitfield* tr_bitfieldNew( size_t bitcount );
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tr_bitfield* tr_bitfieldDup( const tr_bitfield* );
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void tr_bitfieldFree( tr_bitfield*);
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void tr_bitfieldClear( tr_bitfield* );
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void tr_bitfieldAdd( tr_bitfield*, size_t bit );
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void tr_bitfieldRem( tr_bitfield*, size_t bit );
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void tr_bitfieldAddRange( tr_bitfield *, size_t begin, size_t end );
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void tr_bitfieldRemRange ( tr_bitfield*, size_t begin, size_t end );
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int tr_bitfieldHas( const tr_bitfield*, size_t bit );
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int tr_bitfieldIsEmpty( const tr_bitfield* );
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size_t tr_bitfieldCountTrueBits( const tr_bitfield* );
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tr_bitfield* tr_bitfieldNegate( tr_bitfield* );
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tr_bitfield* tr_bitfieldAnd( tr_bitfield*, const tr_bitfield* );
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#endif
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