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wayland: Improve error messages during SHM buffer creation

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Use g_critical rather than fprintf and and also grab the error messages from
errno and from Cairo
This commit is contained in:
Rob Bradford
2012-04-19 17:18:46 +01:00
parent d4c1b46a9e
commit b5845514ec
1 changed files with 26 additions and 17 deletions
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43
gdk/wayland/gdkwindow-wayland.c
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@ -34,6 +34,7 @@
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <errno.h>
#include <wayland-egl.h>
@ -440,33 +441,36 @@ create_shm_buffer (struct wl_shm *shm,
int fd, size, stride;
void *data;
fd = mkstemp(filename);
fd = mkstemp (filename);
if (fd < 0) {
fprintf(stderr, "open %s failed: %m\n", filename);
g_critical (G_STRLOC ": Unable to create temporary file (%s): %s",
filename, g_strerror (errno));
return NULL;
}
stride = width * 4;
size = stride * height;
if (ftruncate(fd, size) < 0) {
fprintf(stderr, "ftruncate failed: %m\n");
if (ftruncate (fd, size) < 0) {
g_critical (G_STRLOC ": Truncating temporary file failed: %s",
g_strerror (errno));
close(fd);
return NULL;
}
data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
unlink(filename);
data = mmap (NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
unlink (filename);
if (data == MAP_FAILED) {
fprintf(stderr, "mmap failed: %m\n");
g_critical (G_STRLOC ": mmap'ping temporary file failed: %s",
g_strerror (errno));
close(fd);
return NULL;
}
buffer = wl_shm_create_buffer(shm, fd,
width, height,
stride, format);
buffer = wl_shm_create_buffer (shm, fd,
width, height,
stride, format);
close(fd);
close (fd);
*data_out = data;
*buf_length = size;
@ -479,10 +483,10 @@ gdk_wayland_cairo_surface_destroy (void *p)
GdkWaylandCairoSurfaceData *data = p;
if (data->buffer)
wl_buffer_destroy(data->buffer);
wl_buffer_destroy (data->buffer);
munmap(data->buf, data->buf_length);
g_free(data);
munmap (data->buf, data->buf_length);
g_free (data);
}
static cairo_surface_t *
@ -490,7 +494,8 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
int width, int height)
{
GdkWaylandCairoSurfaceData *data;
cairo_surface_t *surface;
cairo_surface_t *surface = NULL;
cairo_status_t status;
data = g_new (GdkWaylandCairoSurfaceData, 1);
data->display = display;
@ -514,8 +519,12 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
cairo_surface_set_user_data (surface, &gdk_wayland_cairo_key,
data, gdk_wayland_cairo_surface_destroy);
if (cairo_surface_status (surface) != CAIRO_STATUS_SUCCESS)
fprintf (stderr, "create image surface failed\n");
status = cairo_surface_status (surface);
if (status != CAIRO_STATUS_SUCCESS)
{
g_critical (G_STRLOC ": Unable to create Cairo image surface: %s",
cairo_status_to_string (status));
}
return surface;
}