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Debug: Enhanced debugging capability

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- Change all #if DEBUG_XXX directives to #ifdef, thus making it
  possible to directly enable debugging options with CFLAGS
  (-DDEBUG_XXX).

- Print timestamp before event debugging messages.
This commit is contained in:
Richard Grenville
2012-09-12 09:08:15 +08:00
parent c905c882b4
commit f280750a03
2 changed files with 91 additions and 23 deletions
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73
src/compton.h
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@ -28,11 +28,19 @@
#endif
#define CAN_DO_USABLE 0
#define DEBUG_REPAINT 0
#define DEBUG_EVENTS 0
#define DEBUG_RESTACK 0
#define DEBUG_WINTYPE 0
#define MONITOR_REPAINT 0
// Debug options, enable them using -D in CFLAGS
// #define DEBUG_REPAINT 1
// #define DEBUG_EVENTS 1
// #define DEBUG_RESTACK 1
// #define DEBUG_WINTYPE 1
// #define MONITOR_REPAINT 1
#ifdef DEBUG_EVENTS
// For printing timestamps
#include <time.h>
extern struct timeval time_start;
#endif
#define OPAQUE 0xffffffff
#define REGISTER_PROP "_NET_WM_CM_S"
@ -173,6 +181,55 @@ static inline Bool array_wid_exists(const Window *arr,
return False;
}
#ifdef DEBUG_EVENTS
/*
* Subtracting two struct timeval values.
*
* Taken from glibc manual.
*
* Subtract the `struct timeval' values X and Y,
* storing the result in RESULT.
* Return 1 if the difference is negative, otherwise 0. */
int timeval_subtract (result, x, y)
struct timeval *result, *x, *y;
{
/* Perform the carry for the later subtraction by updating y. */
if (x->tv_usec < y->tv_usec) {
int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
y->tv_usec -= 1000000 * nsec;
y->tv_sec += nsec;
}
if (x->tv_usec - y->tv_usec > 1000000) {
int nsec = (x->tv_usec - y->tv_usec) / 1000000;
y->tv_usec += 1000000 * nsec;
y->tv_sec -= nsec;
}
/* Compute the time remaining to wait.
tv_usec is certainly positive. */
result->tv_sec = x->tv_sec - y->tv_sec;
result->tv_usec = x->tv_usec - y->tv_usec;
/* Return 1 if result is negative. */
return x->tv_sec < y->tv_sec;
}
/**
* Print time passed since program starts execution.
*
* Used for debugging.
*/
static inline void print_timestamp(void) {
struct timeval tm, diff;
if (gettimeofday(&tm, NULL))
return;
timeval_subtract(&diff, &tm, &time_start);
printf("[ %5ld.%02ld ] ", diff.tv_sec, diff.tv_usec / 10000);
}
#endif
static int
get_time_in_milliseconds();
@ -338,7 +395,11 @@ error(Display *dpy, XErrorEvent *ev);
static void
expose_root(Display *dpy, Window root, XRectangle *rects, int nrects);
#if DEBUG_EVENTS
#if defined(DEBUG_EVENTS) || defined(DEBUG_RESTACK)
static int window_get_name(Window w, char **name);
#endif
#ifdef DEBUG_EVENTS
static int
ev_serial(XEvent *ev);