1 /* 2 Copyright (c) 2010, 2013, 2018 Genome Research Ltd. 3 Author: Andrew Whitwham <aw7@sanger.ac.uk> 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions are met: 7 8 1. Redistributions of source code must retain the above copyright notice, 9 this list of conditions and the following disclaimer. 10 11 2. Redistributions in binary form must reproduce the above copyright notice, 12 this list of conditions and the following disclaimer in the documentation 13 and/or other materials provided with the distribution. 14 15 3. Neither the names Genome Research Ltd and Wellcome Trust Sanger 16 Institute nor the names of its contributors may be used to endorse or promote 17 products derived from this software without specific prior written permission. 18 19 THIS SOFTWARE IS PROVIDED BY GENOME RESEARCH LTD AND CONTRIBUTORS "AS IS" AND 20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 DISCLAIMED. IN NO EVENT SHALL GENOME RESEARCH LTD OR CONTRIBUTORS BE LIABLE 23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 25 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef STRING_ALLOC_H 32 #define STRING_ALLOC_H 33 34 #include <stdlib.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /* 41 * A pooled string allocator intended to cut down on the 42 * memory overhead of many small string allocations. 43 * 44 * Andrew Whitwham, September 2010. 45 */ 46 47 typedef struct { 48 char *str; 49 size_t used; 50 } string_t; 51 52 typedef struct { 53 size_t max_length; 54 size_t nstrings; 55 size_t max_strings; 56 string_t *strings; 57 } string_alloc_t; 58 59 string_alloc_t *string_pool_create(size_t max_length); 60 void string_pool_destroy(string_alloc_t *a_str); 61 char *string_alloc(string_alloc_t *a_str, size_t length); 62 char *string_dup(string_alloc_t *a_str, const char *instr); 63 char *string_ndup(string_alloc_t *a_str, const char *instr, size_t len); 64 65 #ifdef __cplusplus 66 } 67 #endif 68 69 #endif 70