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util/log: Add support for logging once. 

These are not data-race safe (like many other once patterns in Mesa), so
they might not log exactly once, but it should be good enough for not
spamming the console.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14999>
This commit is contained in:
Emma Anholt 2022-02-18 10:49:24 -08:00 committed by Marge Bot
parent ad0fcaf1ee
commit 04cdd41fdc
1 changed files with 15 additions and 0 deletions
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15
src/util/log.h
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@ -68,6 +68,21 @@ mesa_log_v(enum mesa_log_level, const char *tag, const char *format,
#define mesa_logd_v(fmt, va) __mesa_log_use_args((fmt), (va))
#endif
#define mesa_log_once(level, fmt, ...) \
do \
{ \
static bool once; \
if (!once) { \
once = true; \
mesa_log(level, (MESA_LOG_TAG), fmt, ##__VA_ARGS__); \
} \
} while (0)
#define mesa_loge_once(fmt, ...) mesa_log_once(MESA_LOG_ERROR, fmt, ##__VA_ARGS__)
#define mesa_logw_once(fmt, ...) mesa_log_once(MESA_LOG_WARN, fmt, ##__VA_ARGS__)
#define mesa_logi_once(fmt, ...) mesa_log_once(MESA_LOG_INFO, fmt, ##__VA_ARGS__)
#define mesa_logd_once(fmt, ...) mesa_log_once(MESA_LOG_DEBUG, fmt, ##__VA_ARGS__)
struct log_stream {
char *msg;
const char *tag;