Similar to XLOG(...) except only log a message the first n times, exactly.
Declared in <folly/logging/xlog.h>
#define XLOG_FIRST_N(level, n, ...)
The internal counter is process-global and threadsafe and exchanges are atomic.
| Name | Description |
|---|---|
| level | The folly::LogLevel value at which to log. |
| n | The number of initial invocations to log. |