LOGFILE_ERROR = 1
LOGFILE_MESSAGE = 2
LOGFILE_TRACE = 4
What is written to file n, will be written to all files m, m>n. Applies to user log writes. Some internal messages are such that they apply to one specific file, such as enable/disable notifications.
/** No change in these */
bool skygw_logmanager_init(void** buf, int argc, char* argv[]);
void skygw_logmanager_done(void** buf);
void skygw_logmanager_exit(void);
int skygw_log_flush(logfile_id_t id);
/** writebuf remains unused, but formatted string is now possible and in case
* of formatted string, arbitrary long argument list is supported too. Max
* length for a log string is defined to BUFSIZ, whose value depends on the
* system but typically is 4/8KB.
*/
int skygw_log_write(void* writebuf, logfile_id_t id, char* format, ...);
int skygw_log_write_flush(void* writebuf, logfile_id_t id, char* format, ...);
makefile.inc includes new CFLAG : SS_PROF, which is set if PROF=Y on make command line or in build_gateway.inc .
ss_debug.h includes corresponding ss_prof(exp) macro which equals to exp if SS_PROF is defined and to empty if in other case.
mlist_t now includes datadel function which is a callback and it is executed for mlnode_data on node exit.
skygw_logmanager_init is still useful because it allows for providing memory address for log manager where it can store a list of preallocated write buffers. TBD.
Logmanager access is now protected with spinlock familiar from epoll/core/spinlock.c . It is modified to avoid trashing; misses are counted and every tenth subsequent lock acquiring attempt triggers short random sleep.
