diff options
Diffstat (limited to 'examples/screencopy.c')
| -rw-r--r-- | examples/screencopy.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/examples/screencopy.c b/examples/screencopy.c index 4e58cd3b..82edcb9c 100644 --- a/examples/screencopy.c +++ b/examples/screencopy.c @@ -21,8 +21,7 @@ * DEALINGS IN THE SOFTWARE. */ -#define _XOPEN_SOURCE 700 -#define _POSIX_C_SOURCE 199309L +#define _POSIX_C_SOURCE 200112L #include <errno.h> #include <fcntl.h> #include <limits.h> @@ -65,12 +64,17 @@ static const struct format formats[] = { {WL_SHM_FORMAT_ABGR8888, false}, }; -static int backingfile(off_t size) { - char template[] = "/tmp/wlroots-shared-XXXXXX"; - int fd = mkstemp(template); +static struct wl_buffer *create_shm_buffer(enum wl_shm_format fmt, + int width, int height, int stride, void **data_out) { + int size = stride * height; + + const char shm_name[] = "/wlroots-screencopy"; + int fd = shm_open(shm_name, O_RDWR | O_CREAT | O_EXCL, 0); if (fd < 0) { - return -1; + fprintf(stderr, "shm_open failed\n"); + return NULL; } + shm_unlink(shm_name); int ret; while ((ret = ftruncate(fd, size)) == EINTR) { @@ -78,20 +82,7 @@ static int backingfile(off_t size) { } if (ret < 0) { close(fd); - return -1; - } - - unlink(template); - return fd; -} - -static struct wl_buffer *create_shm_buffer(enum wl_shm_format fmt, - int width, int height, int stride, void **data_out) { - int size = stride * height; - - int fd = backingfile(size); - if (fd < 0) { - fprintf(stderr, "creating a buffer file for %d B failed: %m\n", size); + fprintf(stderr, "ftruncate failed\n"); return NULL; } |