| 1 | // lognestmonster Copyright (c) 2019 Joshua 'joshuas3' Stockin |
| 2 | // lognestmonster.h |
| 3 | // C header file for implementation of the lognestmonster logging library |
| 4 |
|
| 5 | // <https://github.com/JoshuaS3/lognestmonster/>. |
| 6 |
|
| 7 |
|
| 8 | // This file is part of lognestmonster. |
| 9 |
|
| 10 | // lognestmonster is free software: you can redistribute it and/or modify |
| 11 | // it under the terms of the GNU General Public License as published by |
| 12 | // the Free Software Foundation, either version 3 of the License, or |
| 13 | // (at your option) any later version. |
| 14 |
|
| 15 | // lognestmonster is distributed in the hope that it will be useful, |
| 16 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | // GNU General Public License for more details. |
| 19 |
|
| 20 | // You should have received a copy of the GNU General Public License |
| 21 | // along with lognestmonster. If not, see <https://www.gnu.org/licenses/>. |
| 22 |
|
| 23 | #ifndef __LOGNESTMONSTER__ |
| 24 | #define __LOGNESTMONSTER__ 1 |
| 25 |
|
| 26 | // SEMANTICS |
| 27 | // internal definitions: lnm_lower_camel_case |
| 28 | // public definitions: lnmUpperCamelCase |
| 29 |
|
| 30 | // stdc inclusions |
| 31 |
|
| 32 | #include <stdint.h> |
| 33 | #include <stdlib.h> |
| 34 | #include <string.h> |
| 35 |
|
| 36 |
|
| 37 | // Base definitions |
| 38 |
|
| 39 | enum lnmVerbosityLevel {lnmInfo, lnmDebug, lnmVerbose, lnmVeryVerbose, lnmWarning, lnmError}; |
| 40 |
|
| 41 |
|
| 42 | // Pushable structure |
| 43 |
|
| 44 | typedef uint8_t * lnm_log_item; |
| 45 |
|
| 46 | typedef struct { |
| 47 | uint16_t length; |
| 48 | lnm_log_item * pushed; |
| 49 | } lnm_pushable; |
| 50 |
|
| 51 | lnm_pushable * lnm_new_pushable() { |
| 52 | lnm_pushable * new_pushable = malloc(sizeof(lnm_pushable)); |
| 53 | new_pushable->length = 0; |
| 54 | new_pushable->pushed = malloc(0); |
| 55 | return new_pushable; |
| 56 | } |
| 57 | void lnm_pushable_push(lnm_pushable * pushable, lnm_log_item item) { |
| 58 | pushable->pushed = realloc(pushable->pushed, sizeof(lnm_log_item)*(pushable->length+1)); // reallocate with size: length+1 |
| 59 | pushable->pushed[pushable->length] = item; |
| 60 | pushable->length += 1; |
| 61 | } |
| 62 |
|
| 63 |
|
| 64 | // Statement and event structure definitions |
| 65 |
|
| 66 | typedef struct { |
| 67 | uint8_t type; // Used internally; 0 = statement, 1 = event |
| 68 | lnm_pushable * pushed; // array of memory locations for lnm_event and lnm_log_statement structs |
| 69 | } lnm_log_event; |
| 70 |
|
| 71 | typedef struct { |
| 72 | uint8_t type:1; // Used internally; 0 = statement, 1 = event |
| 73 | uint8_t verbosity:3; // lnmVerbosityLevel, 0-5 |
| 74 | uint8_t tag_size; // character length of the tag |
| 75 | uint16_t message_size; // character length of the message |
| 76 | uint64_t timestamp; // 64-bit millisecond timestamp |
| 77 | char * log; // tag string + message string |
| 78 | } lnm_log_statement; |
| 79 |
|
| 80 |
|
| 81 | // Core library |
| 82 |
|
| 83 | lnm_log_item lnmStatement(uint8_t verbosity, char * tag, char * message) { |
| 84 | lnm_log_statement * new_statement = malloc(sizeof(lnm_log_statement)); |
| 85 | new_statement->type = 0; |
| 86 | new_statement->verbosity = verbosity; |
| 87 | new_statement->timestamp = 0; |
| 88 | int tlen = strlen(tag); |
| 89 | if (tlen > 255 || tlen < 0) { |
| 90 | printf("lognestmonster: tag length %i is longer than the cap 255 characters. exiting...\n", tlen); |
| 91 | exit(1); |
| 92 | } |
| 93 | int mlen = strlen(message); |
| 94 | if (mlen > 65535 || mlen < 0) { |
| 95 | printf("lognestmonster: message length %i is longer than the cap 65535 characters. exiting...\n", mlen); |
| 96 | exit(1); |
| 97 | } |
| 98 | new_statement->tag_size = tlen; |
| 99 | new_statement->message_size = mlen; |
| 100 | new_statement->log = malloc(tlen+mlen+1); |
| 101 | strcpy(new_statement->log, tag); |
| 102 | strcat(new_statement->log, message); |
| 103 | return (lnm_log_item)new_statement; |
| 104 | } |
| 105 |
|
| 106 | #endif |
| 107 |
|
Index