diff options
Diffstat (limited to 'src/basic/log.h')
| -rw-r--r-- | src/basic/log.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/basic/log.h b/src/basic/log.h index 726f035..4543556 100644 --- a/src/basic/log.h +++ b/src/basic/log.h @@ -35,9 +35,8 @@ typedef enum LogTarget{ * used as a regular log level. */ #define LOG_NULL (LOG_EMERG - 1) -/* Note to readers: << and >> have lower precedence (are evaluated earlier) than & and | */ -#define SYNTHETIC_ERRNO(num) (1 << 30 | (num)) -#define IS_SYNTHETIC_ERRNO(val) ((val) >> 30 & 1) +#define SYNTHETIC_ERRNO(num) (abs(num) | (1 << 30)) +#define IS_SYNTHETIC_ERRNO(val) (((val) >> 30) == 1) #define ERRNO_VALUE(val) (abs(val) & ~(1 << 30)) /* The callback function to be invoked when syntax warnings are seen @@ -57,7 +56,7 @@ int log_set_target_from_string(const char *e); LogTarget log_get_target(void) _pure_; void log_settle_target(void); -void log_set_max_level(int level); +int log_set_max_level(int level); int log_set_max_level_from_string(const char *e); int log_get_max_level(void) _pure_; int log_max_levels_to_string(int level, char **ret); @@ -492,6 +491,15 @@ size_t log_context_num_contexts(void); /* Returns the number of fields in all attached log contexts. */ size_t log_context_num_fields(void); +static inline void _reset_log_level(int *saved_log_level) { + assert(saved_log_level); + + log_set_max_level(*saved_log_level); +} + +#define LOG_CONTEXT_SET_LOG_LEVEL(level) \ + _cleanup_(_reset_log_level) _unused_ int _saved_log_level_ = log_set_max_level(level); + #define LOG_CONTEXT_PUSH(...) \ LOG_CONTEXT_PUSH_STRV(STRV_MAKE(__VA_ARGS__)) |