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[logger] Optimize log formatting performance (33-67% faster)

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J. Nick Koston
2025-10-01 01:41:27 +02:00
parent 9bffa2faa6
commit ec3adaae5c
1 changed files with 0 additions and 9 deletions
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9
esphome/components/logger/logger.h
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@@ -48,19 +48,10 @@ static constexpr const char *const LOG_LEVEL_COLORS[] = {
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_WHITE), // VERY_VERBOSE ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_WHITE), // VERY_VERBOSE
}; };
// Single character log level letters (E, W, I, C, D, V)
static constexpr char LOG_LEVEL_LETTER_CHARS[] = {'\0', 'E', 'W', 'I', 'C', 'D', 'V'}; static constexpr char LOG_LEVEL_LETTER_CHARS[] = {'\0', 'E', 'W', 'I', 'C', 'D', 'V'};
// ANSI color codes are always 7 characters ("\033[0;32m")
static constexpr uint8_t ANSI_COLOR_LEN = 7; static constexpr uint8_t ANSI_COLOR_LEN = 7;
// Maximum header size (conservative estimate)
static constexpr uint16_t MAX_HEADER_SIZE = 128; static constexpr uint16_t MAX_HEADER_SIZE = 128;
// Compile-time string length calculation
static constexpr size_t constexpr_strlen(const char *str) { return *str ? 1 + constexpr_strlen(str + 1) : 0; } static constexpr size_t constexpr_strlen(const char *str) { return *str ? 1 + constexpr_strlen(str + 1) : 0; }
// Compile-time validation of log level string lengths
static_assert(constexpr_strlen(LOG_LEVEL_COLORS[0]) == 0, "Level 0 color must be empty"); static_assert(constexpr_strlen(LOG_LEVEL_COLORS[0]) == 0, "Level 0 color must be empty");
static_assert(constexpr_strlen(LOG_LEVEL_COLORS[1]) == 7, "Color codes must be 7 chars"); static_assert(constexpr_strlen(LOG_LEVEL_COLORS[1]) == 7, "Color codes must be 7 chars");