1 /* 2 * ***************************************************************************** 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2018-2021 Gavin D. Howard and contributors. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * * Redistributions of source code must retain the above copyright notice, this 12 * list of conditions and the following disclaimer. 13 * 14 * * Redistributions in binary form must reproduce the above copyright notice, 15 * this list of conditions and the following disclaimer in the documentation 16 * and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 * 30 * ***************************************************************************** 31 * 32 * Definitions for implementing buffered I/O on my own terms. 33 * 34 */ 35 36 #ifndef BC_FILE_H 37 #define BC_FILE_H 38 39 #include <stdarg.h> 40 41 #include <vector.h> 42 43 #define BC_FILE_ULL_LENGTH (21) 44 45 typedef struct BcFile { 46 47 int fd; 48 char *buf; 49 size_t len; 50 size_t cap; 51 52 } BcFile; 53 54 #if BC_ENABLE_HISTORY 55 typedef enum BcFlushType { 56 57 BC_FLUSH_NO_EXTRAS_NO_CLEAR, 58 BC_FLUSH_SAVE_EXTRAS_NO_CLEAR, 59 BC_FLUSH_NO_EXTRAS_CLEAR, 60 BC_FLUSH_SAVE_EXTRAS_CLEAR, 61 62 } BcFlushType; 63 #else // BC_ENABLE_HISTORY 64 #define bc_file_putchar(f, t, c) bc_file_putchar(f, c) 65 #define bc_file_flushErr(f, t) bc_file_flushErr(f) 66 #define bc_file_flush(f, t) bc_file_flush(f) 67 #define bc_file_write(f, t, b, n) bc_file_write(f, b, n) 68 #define bc_file_puts(f, t, s) bc_file_puts(f, s) 69 #endif // BC_ENABLE_HISTORY 70 71 void bc_file_init(BcFile *f, int fd, char *buf, size_t cap); 72 void bc_file_free(BcFile *f); 73 74 void bc_file_putchar(BcFile *restrict f, BcFlushType type, uchar c); 75 BcStatus bc_file_flushErr(BcFile *restrict f, BcFlushType type); 76 void bc_file_flush(BcFile *restrict f, BcFlushType type); 77 void bc_file_write(BcFile *restrict f, BcFlushType type, 78 const char *buf, size_t n); 79 void bc_file_printf(BcFile *restrict f, const char *fmt, ...); 80 void bc_file_vprintf(BcFile *restrict f, const char *fmt, va_list args); 81 void bc_file_puts(BcFile *restrict f, BcFlushType type, const char *str); 82 83 #if BC_ENABLE_HISTORY 84 extern const BcFlushType bc_flush_none; 85 extern const BcFlushType bc_flush_err; 86 extern const BcFlushType bc_flush_save; 87 #endif // BC_ENABLE_HISTORY 88 89 #endif // BC_FILE_H 90