diff options
| -rw-r--r-- | examples/screenshot.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/examples/screenshot.c b/examples/screenshot.c index c163df75..7edb7327 100644 --- a/examples/screenshot.c +++ b/examples/screenshot.c @@ -121,12 +121,32 @@ static const struct wl_registry_listener registry_listener = { .global_remove = handle_global_remove, }; +static int backingfile(off_t size) { + static char template[] = "/tmp/wlroots-shared-XXXXXX"; + int fd, ret; + + fd = mkstemp(template); + if (fd < 0) { + return -1; + } + + while ((ret = ftruncate(fd, size)) == EINTR) {} + if (ret < 0) { + close(fd); + return -1; + } + + unlink(template); + return fd; +} + + static struct wl_buffer *create_shm_buffer(int width, int height, void **data_out) { int stride = width * 4; int size = stride * height; - int fd = os_create_anonymous_file(size); + int fd = backingfile(size); if (fd < 0) { fprintf(stderr, "creating a buffer file for %d B failed: %m\n", size); return NULL; |