#include <db_cxx.h>int DbLog::db_unregister(u_int32_t fid);
The DbLog::db_unregister method disassociates the file name to file identification number mapping for the file identification number specified by the fid parameter. The file identification number may then be reused.
The DbLog::db_unregister method either returns errno or throws an exception that encapsulates an errno on failure, and 0 on success.
The DbLog::db_unregister method may fail and throw an exception for any of the errors specified for the following Berkeley DB and C library functions: abort(3), close(3), dbenv->db_paniccall(3), fcntl(3), fflush(3), fprintf(3), free(3), fsync(3), getenv(3), getpid(3), getuid(3), isdigit(3), lseek(3), malloc(3), memcpy(3), memset(3), open(3), sigfillset(3), sigprocmask(3), snprintf(3), stat(3), strerror(3), strlen(3), time(3), unlink(3), vfprintf(3), vsnprintf(3), and write(3).
In addition, the DbLog::db_unregister method may fail and throw an exception or return errno for the following conditions: