57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/stat.h>
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#include <stdio.h>
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/* Clamps x(value) between y(min) and z(max) in a nested ternary operation */
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#define LIGHT_CLAMP(val, min, max) (val < min ? light_log_clamp_min(min) : (val > max ? light_log_clamp_max(max) : val))
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/* Verbosity levels:
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* 0 - No output
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* 1 - Errors
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* 2 - Errors, warnings
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* 3 - Errors, warnings, notices
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*/
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typedef enum {
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LIGHT_ERROR_LEVEL = 1,
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LIGHT_WARN_LEVEL,
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LIGHT_NOTE_LEVEL
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} light_loglevel_t;
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light_loglevel_t light_loglevel;
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#define LIGHT_LOG(lvl, fp, fmt, args...)\
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if (light_loglevel >= lvl)\
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fprintf(fp, "%s:%d:" fmt "\n", __FILE__, __LINE__, ##args)
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#define LIGHT_NOTE(fmt, args...) LIGHT_LOG(LIGHT_NOTE_LEVEL, stdout, " Notice: " fmt, ##args)
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#define LIGHT_WARN(fmt, args...) LIGHT_LOG(LIGHT_WARN_LEVEL, stderr, " Warning: " fmt, ##args)
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#define LIGHT_ERR(fmt, args...) LIGHT_LOG(LIGHT_ERROR_LEVEL, stderr, " Error: " fmt, ##args)
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#define LIGHT_MEMERR() LIGHT_ERR("memory error");
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#define LIGHT_PERMLOG(act, log)\
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do {\
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log("could not open '%s' for " act, filename);\
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log("Verify it exists with the right permissions");\
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} while (0)
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#define LIGHT_PERMERR(x) LIGHT_PERMLOG(x, LIGHT_ERR)
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#define LIGHT_PERMWARN(x) LIGHT_PERMLOG(x, LIGHT_WARN)
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bool light_file_write_uint64 (char const *filename, uint64_t val);
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bool light_file_read_uint64 (char const *filename, uint64_t *val);
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bool light_file_exists (char const *filename);
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bool light_file_is_writable (char const *filename);
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bool light_file_is_readable (char const *filename);
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uint64_t light_log_clamp_min(uint64_t min);
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uint64_t light_log_clamp_max(uint64_t max);
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double light_percent_clamp(double percent);
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int light_mkpath(char *dir, mode_t mode);
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