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xwm: dump properties of type CARDINAL

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Add code to dump CARDINAL arrays from properties. Useful for debugging.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Reviewed-by: Ian Ray <ian.ray@ge.com>
This commit is contained in:
Pekka Paalanen 2018-05-04 12:53:54 +02:00
parent c63acc4cb8
commit b0a8317bcb
1 changed files with 65 additions and 1 deletions
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64
xwayland/window-manager.c
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@ -27,6 +27,7 @@
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
@ -377,6 +378,67 @@ xcb_cursor_library_load_cursor(struct weston_wm *wm, const char *file)
return cursor;
}
static unsigned
dump_cardinal_array_elem(FILE *fp, unsigned format,
void *arr, unsigned len, unsigned ind)
{
const char *comma;
/* If more than 16 elements, print 0-14, ..., last */
if (ind > 14 && ind < len - 1) {
fprintf(fp, ", ...");
return len - 1;
}
comma = ind ? ", " : "";
switch (format) {
case 32:
fprintf(fp, "%s%" PRIu32, comma, ((uint32_t *)arr)[ind]);
break;
case 16:
fprintf(fp, "%s%" PRIu16, comma, ((uint16_t *)arr)[ind]);
break;
case 8:
fprintf(fp, "%s%" PRIu8, comma, ((uint8_t *)arr)[ind]);
break;
default:
fprintf(fp, "%s???", comma);
}
return ind + 1;
}
static void
dump_cardinal_array(xcb_get_property_reply_t *reply)
{
unsigned i = 0;
FILE *fp;
void *arr;
char *str = NULL;
size_t size = 0;
assert(reply->type == XCB_ATOM_CARDINAL);
fp = open_memstream(&str, &size);
if (!fp)
return;
arr = xcb_get_property_value(reply);
fprintf(fp, "[");
while (i < reply->value_len)
i = dump_cardinal_array_elem(fp, reply->format,
arr, reply->value_len, i);
fprintf(fp, "]");
if (fclose(fp) != 0)
return;
wm_log_continue("%s\n", str);
free(str);
}
void
dump_property(struct weston_wm *wm,
xcb_atom_t property, xcb_get_property_reply_t *reply)
@ -424,6 +486,8 @@ dump_property(struct weston_wm *wm,
width += wm_log_continue("%s", name);
}
wm_log_continue("\n");
} else if (reply->type == XCB_ATOM_CARDINAL) {
dump_cardinal_array(reply);
} else {
wm_log_continue("huh?\n");
}