Boost记录器附加到文件

Question

我已初始化了记录到文件的接收器:

logging::add_file_log
            (
            keywords::file_name = "sample_%N.log",                                        /*< file name pattern >*/
            keywords::rotation_size = 10 * 1024 * 1024,                                   /*< rotate files every 10 MiB... >*/
            keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0), /*< ...or at midnight >*/
            keywords::format = "[%TimeStamp%]: %Message%",                                 /*< log record format >*/
            keywords::auto_flush = true
            );

它看起来在程序重启期间重写文件.如何使其附加到文件？

Answer 1

文件说

open_mode描述文件打开模式的掩码.请参见std :: ios_base :: openmode.

keywords::open_modeappend 的openmode 是std::ios_base::app,所以看起来你需要添加它.