diff options
| -rw-r--r-- | lib/log.cc | 1 | ||||
| -rw-r--r-- | lib/log.h | 54 |
2 files changed, 54 insertions, 1 deletions
@@ -15,6 +15,7 @@ int logbuf::overflow(int c) { *ptr = '\0'; syslog(level, buf); ptr = buf; + len = 0; return 0; } if ((len + 2) >= sizeof(buf)) @@ -7,14 +7,66 @@ #include <ostream.h> #include <syslog.h> +/** + * A streambuffer, logging via syslog + * + * logbuf can be used, if you want to use syslog for + * logging but don't want to change all your nice + * C++-style output statements in your code. + * + * Here is an example showing the usage of logbuf: + * + * <PRE> + * openlog("myDaemon", LOG_CONS|LOG_PID, LOG_DAEMON); + * logbuf ebuf(LOG_ERR); + * ostream lerr(&ebuf); + * + * ... some code ... + * + * lerr << "Whoops, got an error" << endl; + * </PRE> + */ class logbuf : public streambuf { public: - logbuf(int); + + /** + * Constructs a new instance. + * + * @param level The log level for this instance. + * see syslog(3) for symbolic names to use. + */ + logbuf(int level); + + /** + * @internal Called by the associated + * ostream to write a character. + * Stores the character in a buffer + * and calls syslog(level, buffer) + * whenever a LF is seen. + */ int overflow(int c = EOF); + private: + + /** + * Pointer to next char in buffer. + */ char *ptr; + + /** + * Current length of buffer. + */ int len; + + /** + * The log level to use with syslog. + */ int level; + + /** + * The internal buffer for holding + * messages. + */ char buf[1024]; }; |