FAILED
#define FAILED -1
enum conn_states { INITIALIZING, CONNECTING, WRITING, READING, FAILED };
FAILED = 4
#define FAILED 2 /* operation failed for unexplained reason */
FAILED, /* health check failed, discard samples */
FAILED,
#define FAILED 1
#define FAILED 1
#define FAILED 4
#define FAILED 2 /* error was reported */
#define FAILED 2 /* error was reported */
#define FAILED 2 /* error was reported */
#define FAILED 2 /* error was reported */