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wayland: Improve error message handling in cursor buffer code

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This commit is contained in:
Rob Bradford 2012-04-20 13:53:54 +01:00
parent 87cd49371a
commit 55261f4e3f
1 changed files with 22 additions and 15 deletions
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37
gdk/wayland/gdkcursor-wayland.c
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@ -35,6 +35,7 @@
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <sys/mman.h>
#include <errno.h>
#define GDK_TYPE_WAYLAND_CURSOR (_gdk_wayland_cursor_get_type ())
#define GDK_WAYLAND_CURSOR(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_CURSOR, GdkWaylandCursor))
@ -193,28 +194,34 @@ create_cursor(GdkWaylandDisplay *display, GdkPixbuf *pixbuf, int x, int y)
cursor->size = stride * cursor->height;
fd = g_file_open_tmp("wayland-shm-XXXXXX", &filename, &error);
if (fd < 0) {
fprintf(stderr, "g_file_open_tmp failed: %s\n", error->message);
g_error_free (error);
return NULL;
if (fd < 0)
{
g_critical (G_STRLOC ": Error opening temporary file for buffer: %s",
error->message);
g_error_free (error);
return NULL;
}
unlink (filename);
g_free (filename);
if (ftruncate(fd, cursor->size) < 0) {
fprintf(stderr, "ftruncate failed: %m\n");
close(fd);
return NULL;
}
if (ftruncate(fd, cursor->size) < 0)
{
g_critical (G_STRLOC ": Error truncating file for buffer: %s",
g_strerror (errno));
close(fd);
return NULL;
}
cursor->map = mmap(NULL, cursor->size,
PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (cursor->map == MAP_FAILED) {
fprintf(stderr, "mmap failed: %m\n");
close(fd);
return NULL;
}
PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (cursor->map == MAP_FAILED)
{
g_critical (G_STRLOC ": Error mmap'ing file for buffer: %s",
g_strerror (errno));
close(fd);
return NULL;
}
if (pixbuf)
set_pixbuf (cursor, pixbuf);