src/trace.c
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "trace.h" | ||
| 2 | #include "util/array.h" | ||
| 3 | #include "util/xstring.h" | ||
| 4 | |||
| 5 | #if TRACE_LOGGING_ENABLED | ||
| 6 | |||
| 7 | // NOLINTNEXTLINE(*-avoid-non-const-global-variables) | ||
| 8 | static TraceLoggingFlags trace_flags = 0; | ||
| 9 | |||
| 10 | static const char trace_names[][8] = { | ||
| 11 | "command", | ||
| 12 | "input", | ||
| 13 | "output", | ||
| 14 | }; | ||
| 15 | |||
| 16 | 24 | UNITTEST { | |
| 17 | 24 | CHECK_STRING_ARRAY(trace_names); | |
| 18 | 24 | } | |
| 19 | |||
| 20 | // Example valid input: "command,status,input" | ||
| 21 | 7 | TraceLoggingFlags trace_flags_from_str(const char *str) | |
| 22 | { | ||
| 23 |
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7 | if (!str || str[0] == '\0') { |
| 24 | return 0; | ||
| 25 | } | ||
| 26 | |||
| 27 | 6 | bool all = streq(str, "all"); | |
| 28 |
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6 | return all ? TRACEFLAGS_ALL : STR_TO_BITFLAGS(str, trace_names, true); |
| 29 | } | ||
| 30 | |||
| 31 | 1 | void set_trace_logging_flags(TraceLoggingFlags flags) | |
| 32 | { | ||
| 33 | 1 | BUG_ON(trace_flags); // Should be called at most once | |
| 34 | 1 | BUG_ON(!flags); // ... with non-zero flags | |
| 35 | 1 | BUG_ON(!log_level_enabled(LOG_LEVEL_TRACE)); // ... and only when enabled | |
| 36 | 1 | trace_flags = flags; | |
| 37 | 1 | } | |
| 38 | |||
| 39 | // Return true if *any* 1 bits in `flags` are enabled in `trace_flags` | ||
| 40 | 53 | bool log_trace_enabled(TraceLoggingFlags flags) | |
| 41 | { | ||
| 42 | 53 | return !!(trace_flags & flags); | |
| 43 | } | ||
| 44 | |||
| 45 | 51 | void log_trace(TraceLoggingFlags flags, const char *file, int line, const char *fmt, ...) | |
| 46 | { | ||
| 47 |
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51 | if (!log_trace_enabled(flags)) { |
| 48 | 9 | return; | |
| 49 | } | ||
| 50 | |||
| 51 | 42 | va_list ap; | |
| 52 | 42 | va_start(ap, fmt); | |
| 53 | 42 | log_msgv(LOG_LEVEL_TRACE, file, line, fmt, ap); | |
| 54 | 42 | va_end(ap); | |
| 55 | } | ||
| 56 | |||
| 57 | #endif // TRACE_LOGGING_ENABLED | ||
| 58 |