| 1 | #ifndef MACROS_H |
| 2 | #define MACROS_H |
| 3 |
|
| 4 |
|
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <stdarg.h> |
| 8 | #include <stdint.h> |
| 9 |
|
| 10 | #include <sys/time.h> |
| 11 |
|
| 12 | #define lnmCritical "CRITICAL" |
| 13 | #define lnmError "ERROR" |
| 14 | #define lnmWarn "WARN" |
| 15 | #define lnmInfo "INFO" |
| 16 | #define lnmDebug "DEBUG" |
| 17 | #define lnmTrace "TRACE" |
| 18 |
|
| 19 | #define lnm_line __LINE__ |
| 20 | #define lnm_file __FILE__ |
| 21 | #define lnm_func __func__ |
| 22 |
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| 23 |
|
| 24 | uint64_t lnm_getus(void) { |
| 25 | uint64_t us; |
| 26 | struct timeval lnm_current_time; |
| 27 | gettimeofday(&lnm_current_time, NULL); |
| 28 | us = (lnm_current_time.tv_sec * 1000000ULL + lnm_current_time.tv_usec); |
| 29 | return us; |
| 30 | } |
| 31 |
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| 32 |
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| 33 | void log_print(FILE* logger, const char* verbosity, const char* format, ...) { |
| 34 | va_list args; |
| 35 | va_start(args, format); |
| 36 |
|
| 37 | // calculate buffer length |
| 38 | size_t buffer_size = vsnprintf(NULL, 0, format, args); |
| 39 | if (buffer_size > UINT16_MAX) { |
| 40 | printf("too big\n"); |
| 41 | } |
| 42 | char* buffer = malloc(buffer_size + 1); |
| 43 | va_end(args); |
| 44 |
|
| 45 | // pass to vsnprintf |
| 46 | va_start(args, format); |
| 47 | vsnprintf(buffer, buffer_size + 1, format, args); |
| 48 | va_end(args); |
| 49 |
|
| 50 | uint64_t timestamp = lnm_getus(); |
| 51 | fprintf(logger, "[%s] [%lu.%06lu] ", verbosity, timestamp/1000000, timestamp%1000000); |
| 52 |
|
| 53 | fputs(buffer, logger); |
| 54 | fputc('\n', logger); |
| 55 | free(buffer); |
| 56 | } |
| 57 |
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| 58 |
|
| 59 | #endif // MACROS_H |
| 60 |
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