156 lines
3.5 KiB
C
156 lines
3.5 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* log.c: Setting of loglevels, logging functions.
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*
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "util.h"
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#include "log.h"
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/* loglevels.h is autogenerated at make time */
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#include "loglevels.h"
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static uint64_t loglevel = 0;
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static bool verbose = false;
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static FILE *errorfile;
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char *errorfilename;
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/*
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* Initializes logging by creating an error logfile in /tmp (or
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* XDG_RUNTIME_DIR, see get_process_filename()).
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*
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*/
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void init_logging() {
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errorfilename = get_process_filename("errorlog");
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if (errorfilename == NULL) {
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ELOG("Could not initialize errorlog\n");
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return;
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}
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errorfile = fopen(errorfilename, "w");
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if (fcntl(fileno(errorfile), F_SETFD, FD_CLOEXEC)) {
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ELOG("Could not set close-on-exec flag\n");
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}
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}
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/*
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* Set verbosity of i3. If verbose is set to true, informative messages will
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* be printed to stdout. If verbose is set to false, only errors will be
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* printed.
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*
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*/
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void set_verbosity(bool _verbose) {
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verbose = _verbose;
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}
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/*
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* Enables the given loglevel.
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*
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*/
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void add_loglevel(const char *level) {
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/* Handle the special loglevel "all" */
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if (strcasecmp(level, "all") == 0) {
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loglevel = UINT64_MAX;
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return;
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}
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for (int i = 0; i < sizeof(loglevels) / sizeof(char*); i++) {
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if (strcasecmp(loglevels[i], level) != 0)
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continue;
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/* The position in the array (plus one) is the amount of times
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* which we need to shift 1 to the left to get our bitmask for
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* the specific loglevel. */
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loglevel |= (1 << (i+1));
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break;
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}
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}
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/*
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* Logs the given message to stdout while prefixing the current time to it.
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* This is to be called by *LOG() which includes filename/linenumber/function.
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*
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*/
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void vlog(char *fmt, va_list args) {
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static char timebuf[64];
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static struct tm result;
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/* Get current time */
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time_t t = time(NULL);
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/* Convert time to local time (determined by the locale) */
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struct tm *tmp = localtime_r(&t, &result);
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/* Generate time prefix */
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strftime(timebuf, sizeof(timebuf), "%x %X - ", tmp);
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#ifdef DEBUG_TIMING
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struct timeval tv;
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gettimeofday(&tv, NULL);
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printf("%s%d.%d - ", timebuf, tv.tv_sec, tv.tv_usec);
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#else
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printf("%s", timebuf);
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#endif
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vprintf(fmt, args);
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}
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/*
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* Logs the given message to stdout while prefixing the current time to it,
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* but only if verbose mode is activated.
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*
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*/
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void verboselog(char *fmt, ...) {
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va_list args;
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if (!verbose)
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return;
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va_start(args, fmt);
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vlog(fmt, args);
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va_end(args);
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}
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/*
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* Logs the given message to stdout while prefixing the current time to it.
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*
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*/
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void errorlog(char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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vlog(fmt, args);
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va_end(args);
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/* also log to the error logfile, if opened */
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va_start(args, fmt);
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vfprintf(errorfile, fmt, args);
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fflush(errorfile);
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va_end(args);
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}
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/*
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* Logs the given message to stdout while prefixing the current time to it,
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* but only if the corresponding debug loglevel was activated.
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* This is to be called by DLOG() which includes filename/linenumber
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*
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*/
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void debuglog(uint64_t lev, char *fmt, ...) {
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va_list args;
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if ((loglevel & lev) == 0)
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return;
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va_start(args, fmt);
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vlog(fmt, args);
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va_end(args);
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}
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