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Ues __extension__ to make runtime availability check

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Maksym Malyhin committed 2021-07-13 10:24:46 -04:00
1 parent f847b7cf58
commit 6050e2ac8f
2 files changed
+34 -15
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GoogleUtilities/Logger/GULSignpostLogger.m
+7 -3
View File
@@ -18,10 +18,14 @@ gul_os_log_t _gul_default_signpost_log(void) {
return _default_signpost_log;
}
void _gul_os_signpost_interval_begin(gul_os_log_t log, gul_os_signpost_id_t interval_id, const char *name, ...) {
gul_os_signpost_id_t gul_os_signpost_id_generate(gul_os_log_t log) {
#if __has_include(<os/signpost.h>)
if (@available(iOS 12.0, *)) {
os_signpost_interval_begin(log, interval_id, name, "" __VA_ARGS__);
return os_signpost_id_generate(log);
} else {
// Fallback on earlier versions
return 0;
}
#else // __has_include(<os/signpost.h>)
return 0;
#endif // __has_include(<os/signpost.h>)
}
GoogleUtilities/Logger/Public/GoogleUtilities/GULSignpostLogger.h
+27 -12
View File
@@ -13,36 +13,50 @@
typedef os_log_t gul_os_log_t;
typedef os_signpost_id_t gul_os_signpost_id_t;
// See `os_signpost_id_generate`.
#define gul_os_signpost_id_generate(log) \
os_signpost_id_generate(log)
// See `os_signpost_interval_begin`.
#define gul_os_signpost_interval_begin(log, interval_id, name, ...) \
_gul_os_signpost_interval_begin(log, interval_id, name, ##__VA_ARGS__)
__extension__({ \
if (@available(iOS 12.0, *)) { \
os_signpost_interval_begin(log, interval_id, name, "" __VA_ARGS__); \
} \
})
// See `os_signpost_interval_end`.
#define gul_os_signpost_interval_end(log, interval_id, name, ...) \
os_signpost_interval_end(log, interval_id, name, ##__VA_ARGS__)
__extension__({ \
if (@available(iOS 12.0, *)) { \
os_signpost_interval_end(log, interval_id, name, "" __VA_ARGS__); \
} \
})
// See `os_signpost_interval_end`.
#define gul_os_signpost_interval_emit(log, event_id, name, ...) \
os_signpost_interval_emit(log, event_id, name, ##__VA_ARGS__)
__extension__({ \
if (@available(iOS 12.0, *)) { \
os_signpost_interval_end(log, event_id, name, "" __VA_ARGS__); \
} \
})
// See `_gul_default_signpost_log`.
#define gul_default_signpost_log() \
_gul_default_signpost_log()
#define _gul_os_signpost_interval_begin(log, interval_id, name, ...) \
__extension__({ \
if (@available(iOS 12.0, *)) { \
os_signpost_interval_begin(log, interval_id, name, "" __VA_ARGS__); \
} \
})
#else // __has_include(<os/signpost.h>)
// Placeholders for the signpost API methods and types when it's not available.
typedef void gul_os_log_t;
typedef void gul_os_signpost_id_t;
typedef uint64_t gul_os_signpost_id_t;
#define gul_os_signpost_id_generate(log)
//#define gul_os_signpost_interval_begin(log, interval_id, name, ...)
#define gul_os_signpost_interval_begin(log, interval_id, name, ...)
#define gul_os_signpost_interval_end(log, interval_id, name, ...)
@@ -56,4 +70,5 @@ typedef void gul_os_signpost_id_t;
/// @return A default instance of `gul_os_log_t`.
gul_os_log_t _gul_default_signpost_log(void);
void _gul_os_signpost_interval_begin(gul_os_log_t log, gul_os_signpost_id_t interval_id, const char *name, ...);
// See `os_signpost_id_generate`.
gul_os_signpost_id_t gul_os_signpost_id_generate(gul_os_log_t log);