/**
* art_svp_diff: Compute the symmetric difference of two sorted vector paths.
* @svp1: One sorted vector path.
* @svp2: The other sorted vector path.
*
* Computes the symmetric of the two argument svp's. Given two svp's
* with winding numbers of 0 and 1 everywhere, the resulting winding
* number will be 1 where either, but not both, of the argument svp's
* has a winding number 1, 0 otherwise. The result is newly allocated.
*
* Currently, this routine has accuracy problems pending the
* implementation of the new intersector.
*
* Return value: The symmetric difference of @svp1 and @svp2.
**/
ArtSVP *
art_svp_diff (const ArtSVP *svp1, const ArtSVP *svp2)
{
#ifdef ART_USE_NEW_INTERSECTOR
ArtSVP *svp3, *svp_new;
ArtSvpWriter *swr;
svp3 = art_svp_merge (svp1, svp2);
swr = art_svp_writer_rewind_new (ART_WIND_RULE_ODDEVEN);
art_svp_intersector (svp3, swr);
svp_new = art_svp_writer_rewind_reap (swr);
art_free (svp3); /* shallow free because svp3 contains shared segments */
return svp_new;
#else
ArtSVP *svp3, *svp4, *svp_new;
svp3 = art_svp_merge_perturbed (svp1, svp2);
svp4 = art_svp_uncross (svp3);
art_svp_free (svp3);
svp_new = art_svp_rewind_uncrossed (svp4, ART_WIND_RULE_ODDEVEN);
art_svp_free (svp4);
return svp_new;
#endif
}
ArtSVP *
art_svp_minus (const ArtSVP *svp1, const ArtSVP *svp2)
{
ArtSVP *svp2_mod;
ArtSVP *svp3, *svp_new;
ArtSvpWriter *swr;
int i;
svp2_mod = (ArtSVP *) svp2; /* get rid of the const for a while */
/* First invert svp2 to "turn it inside out" */
for (i = 0; i < svp2_mod->n_segs; i++)
svp2_mod->segs[i].dir = !svp2_mod->segs[i].dir;
svp3 = art_svp_merge (svp1, svp2_mod);
swr = art_svp_writer_rewind_new (ART_WIND_RULE_POSITIVE);
art_svp_intersector (svp3, swr);
svp_new = art_svp_writer_rewind_reap (swr);
art_free (svp3); /* shallow free because svp3 contains shared segments */
/* Flip svp2 back to its original state */
for (i = 0; i < svp2_mod->n_segs; i++)
svp2_mod->segs[i].dir = !svp2_mod->segs[i].dir;
return svp_new;
}
static void
nr_typeface_w32_finalize (NRObject *object)
{
NRTypeFaceW32 *tfw32;
tfw32 = (NRTypeFaceW32 *) object;
nr_free (tfw32->otm);
DeleteFont (tfw32->hfont);
if (tfw32->slots) {
unsigned int i;
for (i = 0; i < tfw32->slots_length; i++) {
if (tfw32->slots[i].outline.path > 0) {
art_free (tfw32->slots[i].outline.path);
}
}
nr_free (tfw32->slots);
}
if (tfw32->hgidx) nr_free (tfw32->hgidx);
if (tfw32->vgidx) nr_free (tfw32->vgidx);
((NRObjectClass *) (parent_class))->finalize (object);
}
/**
* art_svp_intersect: Compute the intersection of two sorted vector paths.
* @svp1: One sorted vector path.
* @svp2: The other sorted vector path.
*
* Computes the intersection of the two argument svp's. Given two
* svp's with winding numbers of 0 and 1 everywhere, the resulting
* winding number will be 1 where both of the argument svp's has a
* winding number 1, 0 otherwise. The result is newly allocated.
*
* Currently, this routine has accuracy problems pending the
* implementation of the new intersector.
*
* Return value: The intersection of @svp1 and @svp2.
**/
ArtSVP *
art_svp_intersect (const ArtSVP *svp1, const ArtSVP *svp2)
{
#ifdef ART_USE_NEW_INTERSECTOR
ArtSVP *svp3, *svp_new;
ArtSvpWriter *swr;
#ifdef ROBIN_DEBUG
dump_svp("art_svp_intersect svp1", svp1);
dump_svp("art_svp_intersect svp2", svp2);
#endif
svp3 = art_svp_merge (svp1, svp2);
swr = art_svp_writer_rewind_new (ART_WIND_RULE_INTERSECT);
art_svp_intersector (svp3, swr);
svp_new = art_svp_writer_rewind_reap (swr);
art_free (svp3); /* shallow free because svp3 contains shared segments */
#ifdef ROBIN_DEBUG
dump_svp("art_svp_intersect svp_new", svp_new);
#endif
return svp_new;
#else
ArtSVP *svp3, *svp4, *svp_new;
svp3 = art_svp_merge_perturbed (svp1, svp2);
svp4 = art_svp_uncross (svp3);
art_svp_free (svp3);
svp_new = art_svp_rewind_uncrossed (svp4, ART_WIND_RULE_INTERSECT);
art_svp_free (svp4);
return svp_new;
#endif
}
static int
gnome_print_multipage_stroke (GnomePrintContext *pc, const ArtBpath *bpath)
{
GnomePrintMultipage *mp;
const ArtVpathDash *dash;
ArtBpath *p;
gint ret;
mp = GNOME_PRINT_MULTIPAGE (pc);
dash = gp_gc_get_dash (pc->gc);
p = art_bpath_affine_transform (bpath, mp->subpage->data);
gnome_print_setrgbcolor (mp->subpc, gp_gc_get_red (pc->gc), gp_gc_get_green (pc->gc), gp_gc_get_blue (pc->gc));
gnome_print_setopacity (mp->subpc, gp_gc_get_opacity (pc->gc));
gnome_print_setlinewidth (mp->subpc, gp_gc_get_linewidth (pc->gc));
gnome_print_setmiterlimit (mp->subpc, gp_gc_get_miterlimit (pc->gc));
gnome_print_setlinejoin (mp->subpc, gp_gc_get_linejoin (pc->gc));
gnome_print_setlinecap (mp->subpc, gp_gc_get_linecap (pc->gc));
gnome_print_setdash (mp->subpc, dash->n_dash, dash->dash, dash->offset);
ret = gnome_print_stroke_bpath (mp->subpc, p);
art_free (p);
return ret;
}
static void
free_seg (ArtSVPSeg *seg)
{
g_assert (seg != NULL);
g_assert (seg->points != NULL);
art_free (seg->points);
}
int create_instance_backing (ncInstance * instance)
{
int ret = ERROR;
virtualMachine * vm = &(instance->params);
artifact * sentinel = NULL;
// ensure instance directory exists
set_path (instance->instancePath, sizeof (instance->instancePath), instance, NULL);
if (ensure_directories_exist (instance->instancePath, 0, NULL, "root", BACKING_DIRECTORY_PERM) == -1)
goto out;
// set various instance-directory-relative paths in the instance struct
set_path (instance->xmlFilePath, sizeof (instance->xmlFilePath), instance, "instance.xml");
set_path (instance->libvirtFilePath, sizeof (instance->libvirtFilePath), instance, "libvirt.xml");
set_path (instance->consoleFilePath, sizeof (instance->consoleFilePath), instance, "console.log");
if (strstr (instance->platform, "windows")) {
// generate the floppy file for windows instances
if (makeWindowsFloppy (nc_state.home, instance->instancePath, instance->keyName, instance->instanceId)) {
logprintfl (EUCAERROR, "[%s] error: could not create windows bootup script floppy\n", instance->instanceId);
goto out;
} else {
set_path (instance->floppyFilePath, sizeof (instance->floppyFilePath), instance, "floppy");
}
}
char work_prefix [1024]; // {userId}/{instanceId}
set_id (instance, NULL, work_prefix, sizeof (work_prefix));
// compute tree of dependencies
sentinel = vbr_alloc_tree (vm, // the struct containing the VBR
FALSE, // for Xen and KVM we do not need to make disk bootable
TRUE, // make working copy of runtime-modifiable files
(instance->do_inject_key)?(instance->keyName):(NULL), // the SSH key
instance->instanceId); // ID is for logging
if (sentinel == NULL) {
logprintfl (EUCAERROR, "[%s] error: failed to prepare backing for instance\n", instance->instanceId);
goto out;
}
sem_p (disk_sem);
// download/create/combine the dependencies
int rc = art_implement_tree (sentinel, work_bs, cache_bs, work_prefix, INSTANCE_PREP_TIMEOUT_USEC);
sem_v (disk_sem);
if (rc != OK) {
logprintfl (EUCAERROR, "[%s] error: failed to implement backing for instance\n", instance->instanceId);
goto out;
}
if (save_instance_struct (instance)) // update instance checkpoint now that the struct got updated
goto out;
ret = OK;
out:
if (sentinel)
art_free (sentinel);
return ret;
}
static void
test_dash (void)
{
ArtVpath *vpath, *vpath2;
double dash_data[] = { 10, 4, 1, 4};
ArtVpathDash dash;
dash.offset = 0;
dash.n_dash = 3;
dash.dash = dash_data;
vpath = randstar (50);
vpath2 = art_vpath_dash (vpath, &dash);
printf ("%%!\n");
print_vpath (vpath2);
printf ("showpage\n");
art_free (vpath);
art_free (vpath2);
}
/**
* art_uta_from_svp: Generate uta covering an svp.
* @svp: The source svp.
*
* Generates a uta covering @svp. The resulting uta is of course
* approximate, ie it may cover more pixels than covered by @svp.
*
* Note: I will want to replace this with a more direct
* implementation. But this gets the api in place.
*
* Return value: the new uta.
**/
ArtUta *
art_uta_from_svp (const ArtSVP *svp)
{
ArtVpath *vpath;
ArtUta *uta;
vpath = art_vpath_from_svp (svp);
uta = art_uta_from_vpath (vpath);
art_free (vpath);
return uta;
}
static ArtSVP *
art_svp_merge_perturbed (const ArtSVP *svp1, const ArtSVP *svp2)
{
ArtVpath *vpath1, *vpath2;
ArtVpath *vpath1_p, *vpath2_p;
ArtSVP *svp1_p, *svp2_p;
ArtSVP *svp_new;
vpath1 = art_vpath_from_svp (svp1);
vpath1_p = art_vpath_perturb (vpath1);
art_free (vpath1);
svp1_p = art_svp_from_vpath (vpath1_p);
art_free (vpath1_p);
vpath2 = art_vpath_from_svp (svp2);
vpath2_p = art_vpath_perturb (vpath2);
art_free (vpath2);
svp2_p = art_svp_from_vpath (vpath2_p);
art_free (vpath2_p);
svp_new = art_svp_merge (svp1_p, svp2_p);
#ifdef VERBOSE
print_ps_svp (svp1_p);
print_ps_svp (svp2_p);
print_ps_svp (svp_new);
#endif
art_free (svp1_p);
art_free (svp2_p);
return svp_new;
}
/**
* art_svp_vpath_stroke: Stroke a vector path.
* @vpath: #ArtVPath to stroke.
* @join: Join style.
* @cap: Cap style.
* @line_width: Width of stroke.
* @miter_limit: Miter limit.
* @flatness: Flatness.
*
* Computes an svp representing the stroked outline of @vpath. The
* width of the stroked line is @line_width.
*
* Lines are joined according to the @join rule. Possible values are
* ART_PATH_STROKE_JOIN_MITER (for mitered joins),
* ART_PATH_STROKE_JOIN_ROUND (for round joins), and
* ART_PATH_STROKE_JOIN_BEVEL (for bevelled joins). The mitered join
* is converted to a bevelled join if the miter would extend to a
* distance of more than @miter_limit * @line_width from the actual
* join point.
*
* If there are open subpaths, the ends of these subpaths are capped
* according to the @cap rule. Possible values are
* ART_PATH_STROKE_CAP_BUTT (squared cap, extends exactly to end
* point), ART_PATH_STROKE_CAP_ROUND (rounded half-circle centered at
* the end point), and ART_PATH_STROKE_CAP_SQUARE (squared cap,
* extending half @line_width past the end point).
*
* The @flatness parameter controls the accuracy of the rendering. It
* is most important for determining the number of points to use to
* approximate circular arcs for round lines and joins. In general, the
* resulting vector path will be within @flatness pixels of the "ideal"
* path containing actual circular arcs. I reserve the right to use
* the @flatness parameter to convert bevelled joins to miters for very
* small turn angles, as this would reduce the number of points in the
* resulting outline path.
*
* The resulting path is "clean" with respect to self-intersections, i.e.
* the winding number is 0 or 1 at each point.
*
* Return value: Resulting stroked outline in svp format.
**/
ArtSVP *
art_svp_vpath_stroke (ArtVpath *vpath,
ArtPathStrokeJoinType join,
ArtPathStrokeCapType cap,
double line_width,
double miter_limit,
double flatness)
{
ArtVpath *vpath_stroke, *vpath2;
ArtSVP *svp, *svp2, *svp3;
vpath_stroke = art_svp_vpath_stroke_raw (vpath, join, cap,
line_width, miter_limit, flatness);
#ifdef VERBOSE
print_ps_vpath (vpath_stroke);
#endif
vpath2 = art_vpath_perturb (vpath_stroke);
#ifdef VERBOSE
print_ps_vpath (vpath2);
#endif
art_free (vpath_stroke);
svp = art_svp_from_vpath (vpath2);
#ifdef VERBOSE
print_ps_svp (svp);
#endif
art_free (vpath2);
svp2 = art_svp_uncross (svp);
#ifdef VERBOSE
print_ps_svp (svp2);
#endif
art_svp_free (svp);
svp3 = art_svp_rewind_uncrossed (svp2, ART_WIND_RULE_NONZERO);
#ifdef VERBOSE
print_ps_svp (svp3);
#endif
art_svp_free (svp2);
return svp3;
}
static int
gnome_print_multipage_clip (GnomePrintContext *pc, const ArtBpath *bpath, ArtWindRule rule)
{
GnomePrintMultipage *mp;
ArtBpath *p;
gint ret;
mp = GNOME_PRINT_MULTIPAGE (pc);
p = art_bpath_affine_transform (bpath, mp->subpage->data);
ret = gnome_print_clip_bpath_rule (mp->subpc, p, rule);
art_free (p);
return ret;
}
static int
gnome_print_multipage_fill (GnomePrintContext *pc, const ArtBpath *bpath, ArtWindRule rule)
{
GnomePrintMultipage *mp;
ArtBpath *p;
gint ret;
mp = GNOME_PRINT_MULTIPAGE(pc);
p = art_bpath_affine_transform (bpath, mp->subpage->data);
gnome_print_setrgbcolor (mp->subpc, gp_gc_get_red (pc->gc), gp_gc_get_green (pc->gc), gp_gc_get_blue (pc->gc));
gnome_print_setopacity (mp->subpc, gp_gc_get_opacity (pc->gc));
ret = gnome_print_fill_bpath_rule (mp->subpc, p, rule);
art_free (p);
return ret;
}
gfxpoly_t* gfxpoly_intersect(gfxpoly_t*poly1, gfxpoly_t*poly2)
{
ArtSvpWriter *swr;
static int counter = 0;
ArtSVP* svp1 = (ArtSVP*)poly1;
ArtSVP* svp2 = (ArtSVP*)poly2;
msg("<verbose> Intersecting two polygons of %d and %d segments", svp1->n_segs, svp2->n_segs);
#ifdef DEBUG
char filename[80];
sprintf(filename, "isvp%d_src1.ps", counter);
write_svp_postscript(filename, svp1);
sprintf(filename, "isvp%d_src2.ps", counter);
write_svp_postscript(filename, svp2);
#endif
ArtSVP* svp3 = art_svp_merge (svp1, svp2);
#ifdef DEBUG
sprintf(filename, "isvp%d_src.ps", counter);
write_svp_postscript(filename, svp3);
#endif
//write_svp_postscript("svp.ps", svp3);
ArtSVP*svp_new = run_intersector(svp3, ART_WIND_RULE_INTERSECT);
art_free (svp3); /* shallow free because svp3 contains shared segments */
#ifdef DEBUG
sprintf(filename, "isvp%d.ps", counter);
write_svp_postscript(filename, svp_new);
#endif
counter++;
//write_svp_postscript("svp_new.ps", svp_new);
return (gfxpoly_t*)svp_new;
}
static void
nr_typeface_gnome_finalize (NRObject *object)
{
NRTypeFace *tf;
NRTypeFaceGnome *tfg;
tf = (NRTypeFace *) object;
tfg = (NRTypeFaceGnome *) object;
if (tfg->voutlines) {
int i;
for (i = 0; i < tf->nglyphs; i++) {
if (tfg->voutlines[i].path) art_free (tfg->voutlines[i].path);
}
nr_free (tfg->voutlines);
}
gnome_font_face_unref (tfg->face);
((NRObjectClass *) (parent_class))->finalize (object);
}
static void
make_testpat (void)
{
ArtVpath *vpath, *vpath2, *vpath3;
ArtSVP *svp, *svp2;
ArtSVP *svp3;
art_u8 buf[512 * 512 * BYTES_PP];
int i, j;
int iter;
art_u8 colorimg[256][256][3];
art_u8 rgbaimg[256][256][4];
art_u8 bitimg[16][2];
int x, y;
double affine[6];
double affine2[6];
double affine3[6];
ArtAlphaGamma *alphagamma;
double dash_data[] = { 20 };
ArtVpathDash dash;
dash.offset = 0;
dash.n_dash = 1;
dash.dash = dash_data;
#ifdef TEST_AFFINE
test_affine ();
exit (0);
#endif
vpath = randstar (50);
svp = art_svp_from_vpath (vpath);
art_free (vpath);
vpath2 = randstar (50);
#if 1
vpath3 = art_vpath_dash (vpath2, &dash);
art_free (vpath2);
svp2 = art_svp_vpath_stroke (vpath3,
ART_PATH_STROKE_JOIN_MITER,
ART_PATH_STROKE_CAP_BUTT,
15,
4,
0.5);
art_free (vpath3);
#else
svp2 = art_svp_from_vpath (vpath2);
#endif
#if 1
svp3 = art_svp_intersect (svp, svp2);
#else
svp3 = svp2;
#endif
#if 0
print_svp (svp);
#endif
for (y = 0; y < 256; y++)
for (x = 0; x < 256; x++)
{
colorimg[y][x][0] = (x + y) >> 1;
colorimg[y][x][1] = (x + (255 - y)) >> 1;
colorimg[y][x][2] = ((255 - x) + y) >> 1;
rgbaimg[y][x][0] = (x + y) >> 1;
rgbaimg[y][x][1] = (x + (255 - y)) >> 1;
rgbaimg[y][x][2] = ((255 - x) + y) >> 1;
rgbaimg[y][x][3] = y;
}
for (y = 0; y < 16; y++)
for (x = 0; x < 2; x++)
bitimg[y][x] = (x << 4) | y;
affine[0] = 0.5;
affine[1] = .2;
affine[2] = -.2;
affine[3] = 0.5;
affine[4] = 64;
affine[5] = 64;
affine2[0] = 1;
affine2[1] = -.2;
affine2[2] = .2;
affine2[3] = 1;
affine2[4] = 128;
affine2[5] = 128;
affine3[0] = 5;
affine3[1] = -.2;
affine3[2] = .2;
affine3[3] = 5;
affine3[4] = 384;
affine3[5] = 32;
#if 0
alphagamma = art_alphagamma_new (1.8);
#else
alphagamma = NULL;
#endif
#ifdef COLOR
printf ("P6\n512 512\n255\n");
#else
printf ("P5\n512 512\n255\n");
#endif
for (iter = 0; iter < NUM_ITERS; iter++)
for (j = 0; j < 512; j += TILE_SIZE)
for (i = 0; i < 512; i += TILE_SIZE)
{
#ifdef COLOR
art_rgb_svp_aa (svp, i, j, i + TILE_SIZE, j + TILE_SIZE,
0xffe0a0, 0x100040,
buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP,
alphagamma);
art_rgb_svp_alpha (svp2, i, j, i + TILE_SIZE, j + TILE_SIZE,
0xff000080,
buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP,
alphagamma);
art_rgb_svp_alpha (svp3, i, j, i + TILE_SIZE, j + TILE_SIZE,
0x00ff0080,
buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP,
alphagamma);
art_rgb_affine (buf + (j * 512 + i) * BYTES_PP,
i, j, i + TILE_SIZE, j + TILE_SIZE, 512 * BYTES_PP,
(art_u8 *)colorimg, 256, 256, 256 * 3,
affine,
ART_FILTER_NEAREST, alphagamma);
art_rgb_rgba_affine (buf + (j * 512 + i) * BYTES_PP,
i, j, i + TILE_SIZE, j + TILE_SIZE,
512 * BYTES_PP,
(art_u8 *)rgbaimg, 256, 256, 256 * 4,
affine2,
ART_FILTER_NEAREST, alphagamma);
art_rgb_bitmap_affine (buf + (j * 512 + i) * BYTES_PP,
i, j, i + TILE_SIZE, j + TILE_SIZE,
512 * BYTES_PP,
(art_u8 *)bitimg, 16, 16, 2,
0xffff00ff,
affine3,
ART_FILTER_NEAREST, alphagamma);
#else
art_gray_svp_aa (svp, i, j, i + TILE_SIZE, j + TILE_SIZE,
buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP);
#endif
}
art_svp_free (svp2);
art_svp_free (svp3);
art_svp_free (svp);
#if 1
fwrite (buf, 1, 512 * 512 * BYTES_PP, stdout);
#endif
}
void art_draw_poly(art_buffer_p buffer, art_context_p context, int filled,
float *x, float *y, int n, int closed)
{
ArtVpath *vec, *vec2;
ArtSVP *svp;
double dash_data[2];
ArtVpathDash dash;
ArtDRect drect;
ArtIRect irect;
int i, mark = 0;
vec = art_new(ArtVpath, n + 1 + closed);
for(i = 0; i < n; i++) {
vec[mark].code = i ? ART_LINETO : ART_MOVETO;
if(i == 0 || i == n - 1 || hypot(x[i] - vec[mark - 1].x,
(buffer->height - y[i]) -
vec[mark - 1].y) > 1.0) {
vec[mark].x = x[i];
vec[mark].y = buffer->height - y[i];
mark++;
}
}
n = mark;
if(closed) {
vec[n].code = ART_LINETO;
vec[n].x = vec[0].x;
vec[n].y = vec[0].y;
}
vec[n + closed].code = ART_END;
vec[n + closed].x = 0;
vec[n + closed].y = 0;
if(context->current_dash_on > 0) {
dash.offset = 0;
dash_data[0] = context->current_dash_on;
dash_data[1] = context->current_dash_off;
dash.n_dash = 2;
dash.dash = dash_data;
vec2 = art_vpath_dash(vec, &dash);
art_free(vec);
vec = vec2;
}
if(filled)
svp = art_svp_from_vpath(vec);
else
svp = art_svp_vpath_stroke(vec, context->current_jointype,
context->current_captype,
context->current_linewidth,
context->current_miterlimit,
context->current_flatness);
art_free(vec);
art_drect_svp(&drect, svp);
art_drect_to_irect(&irect, &drect);
if(irect.x1 > buffer->width)
irect.x1 = buffer->width;
if(irect.y1 > buffer->height)
irect.y1 = buffer->height;
if(irect.x0 < 0)
irect.x0 = 0;
if(irect.y0 < 0)
irect.y0 = 0;
art_rgb_svp_alpha(svp, irect.x0, irect.y0, irect.x1, irect.y1,
context->current_color,
buffer->buffer + (irect.y0 * buffer->width + irect.x0) * 3,
buffer->width * 3, NULL);
art_svp_free(svp);
}
//!
//! Implement the backing store for a given instance
//!
//! @param[in] instance pointer to the instance
//! @param[in] is_migration_dest
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure
//!
//! @pre The instance parameter must not be NULL.
//!
//! @post
//!
int create_instance_backing(ncInstance * instance, boolean is_migration_dest)
{
int rc = 0;
int ret = EUCA_ERROR;
virtualMachine *vm = &(instance->params);
artifact *sentinel = NULL;
char work_prefix[1024] = { 0 }; // {userId}/{instanceId}
// set various instance-directory-relative paths in the instance struct
set_instance_paths(instance);
// ensure instance directory exists
if (ensure_directories_exist(instance->instancePath, 0, NULL, "root", BACKING_DIRECTORY_PERM) == -1)
goto out;
if (strstr(instance->platform, "windows")) {
// generate the floppy file for windows instances
if (makeWindowsFloppy(nc_state.home, instance->instancePath, instance->keyName, instance->instanceId)) {
LOGERROR("[%s] could not create windows bootup script floppy\n", instance->instanceId);
goto out;
} else {
set_path(instance->floppyFilePath, sizeof(instance->floppyFilePath), instance, "floppy");
}
} else if (strlen(instance->instancePk) > 0) { // TODO: credential floppy is limited to Linux instances ATM
LOGDEBUG("[%s] creating floppy for instance credential\n", instance->instanceId);
if (make_credential_floppy(nc_state.home, instance)) {
LOGERROR("[%s] could not create credential floppy\n", instance->instanceId);
goto out;
} else {
set_path(instance->floppyFilePath, sizeof(instance->floppyFilePath), instance, "floppy");
}
}
set_id(instance, NULL, work_prefix, sizeof(work_prefix));
// if this looks like a partition m1.small image, make it a bootable disk
virtualMachine *vm2 = NULL;
LOGDEBUG("vm->virtualBootRecordLen=%d\n", vm->virtualBootRecordLen);
if (vm->virtualBootRecordLen == 5) { // TODO: make this check more robust
// as an experiment, construct a new VBR, without swap and ephemeral
virtualMachine vm_copy;
vm2 = &vm_copy;
memcpy(vm2, vm, sizeof(virtualMachine));
bzero(vm2->virtualBootRecord, EUCA_MAX_VBRS * sizeof(virtualBootRecord));
vm2->virtualBootRecordLen = 0;
virtualBootRecord *emi_vbr = NULL;
for (int i = 0; i < EUCA_MAX_VBRS && i < vm->virtualBootRecordLen; i++) {
virtualBootRecord *vbr = &(vm->virtualBootRecord[i]);
if (vbr->type != NC_RESOURCE_KERNEL && vbr->type != NC_RESOURCE_RAMDISK && vbr->type != NC_RESOURCE_IMAGE)
continue;
if (vbr->type == NC_RESOURCE_IMAGE)
emi_vbr = vbr;
memcpy(vm2->virtualBootRecord + (vm2->virtualBootRecordLen++), vbr, sizeof(virtualBootRecord));
}
if (emi_vbr == NULL) {
LOGERROR("[%s] failed to find EMI among VBR entries\n", instance->instanceId);
goto out;
}
if (vbr_add_ascii("boot:none:104857600:ext3:sda2:none", vm2) != EUCA_OK) {
LOGERROR("[%s] could not add a boot partition VBR entry\n", instance->instanceId);
goto out;
}
if (vbr_parse(vm2, NULL) != EUCA_OK) {
LOGERROR("[%s] could not parse the boot partition VBR entry\n", instance->instanceId);
goto out;
}
// compute tree of dependencies
sentinel = vbr_alloc_tree(vm2, // the struct containing the VBR
TRUE, // we always make the disk bootable, for consistency
TRUE, // make working copy of runtime-modifiable files
is_migration_dest, // tree of an instance on the migration destination
(instance->do_inject_key) ? (instance->keyName) : (NULL), // the SSH key
instance->instanceId); // ID is for logging
if (sentinel == NULL) {
LOGERROR("[%s] failed to prepare backing for instance\n", instance->instanceId);
goto out;
}
LOGDEBUG("disk size prior to tree implementation is = %lld\n", sentinel->deps[0]->size_bytes);
long long right_disk_size = sentinel->deps[0]->size_bytes;
sem_p(disk_sem);
{
// download/create/combine the dependencies
rc = art_implement_tree(sentinel, work_bs, cache_bs, work_prefix, INSTANCE_PREP_TIMEOUT_USEC);
}
sem_v(disk_sem);
if (rc != EUCA_OK) {
LOGERROR("[%s] failed to implement backing for instance\n", instance->instanceId);
goto out;
}
LOGDEBUG("[%s] created the initial bootable disk\n", instance->instanceId);
/* option A starts */
assert(emi_vbr);
assert(sentinel->deps[0]);
strcpy(emi_vbr->guestDeviceName, "sda"); // switch 'sda1' to 'sda' now that we've built the disk
//emi_vbr->sizeBytes = sentinel->deps[0]->size_bytes; // update the size to match the disk
emi_vbr->sizeBytes = right_disk_size; // this is bad...
LOGDEBUG("at boot disk creation time emi_vbr->sizeBytes = %lld\n", emi_vbr->sizeBytes);
euca_strncpy(emi_vbr->id, sentinel->deps[0]->id, SMALL_CHAR_BUFFER_SIZE); // change to the ID of the disk
if (vbr_parse(vm, NULL) != EUCA_OK) {
LOGERROR("[%s] could not parse the boot partition VBR entry\n", instance->instanceId);
goto out;
}
emi_vbr->locationType = NC_LOCATION_NONE; // i.e., it should already exist
art_free(sentinel);
/* option A end */
/* option B starts *
memcpy(vm, vm2, sizeof(virtualMachine));
if (save_instance_struct(instance)) // update instance checkpoint now that the struct got updated
goto out;
ret = EUCA_OK;
goto out;
* option B ends */
}
// compute tree of dependencies
sentinel = vbr_alloc_tree(vm, // the struct containing the VBR
FALSE, // if image had to be made bootable, that was done above
TRUE, // make working copy of runtime-modifiable files
is_migration_dest, // tree of an instance on the migration destination
(instance->do_inject_key) ? (instance->keyName) : (NULL), // the SSH key
instance->instanceId); // ID is for logging
if (sentinel == NULL) {
LOGERROR("[%s] failed to prepare extended backing for instance\n", instance->instanceId);
goto out;
}
sem_p(disk_sem);
{
// download/create/combine the dependencies
rc = art_implement_tree(sentinel, work_bs, cache_bs, work_prefix, INSTANCE_PREP_TIMEOUT_USEC);
}
sem_v(disk_sem);
if (rc != EUCA_OK) {
LOGERROR("[%s] failed to implement backing for instance\n", instance->instanceId);
goto out;
}
if (save_instance_struct(instance)) // update instance checkpoint now that the struct got updated
goto out;
ret = EUCA_OK;
out:
if (sentinel)
art_free(sentinel);
return (ret);
}
static MateComponent_Canvas_ArtUTA *
impl_MateComponent_Canvas_Component_update (PortableServer_Servant servant,
const MateComponent_Canvas_State *state,
const MateComponent_Canvas_affine aff,
const MateComponent_Canvas_SVP *clip_path,
CORBA_long flags,
CORBA_double *x1,
CORBA_double *y1,
CORBA_double *x2,
CORBA_double *y2,
CORBA_Environment *ev)
{
Gcc *gcc = GCC (matecomponent_object_from_servant (servant));
MateCanvasItem *item = MATE_CANVAS_ITEM (gcc->priv->item);
double affine [6];
int i;
ArtSVP *svp = NULL;
MateComponent_Canvas_ArtUTA *cuta;
MateCanvasItemClass *gci_class = g_type_class_ref (
mate_canvas_item_get_type ());
restore_state (item, state);
for (i = 0; i < 6; i++)
affine [i] = aff [i];
if (clip_path->_length > 0) {
svp = art_alloc (sizeof (ArtSVP) + (clip_path->_length * sizeof (ArtSVPSeg)));
if (svp == NULL)
goto fail;
svp->n_segs = clip_path->_length;
for (i = 0; svp->n_segs; i++) {
gboolean ok;
ok = CORBA_SVP_Segment_to_SVPSeg (&clip_path->_buffer [i], &svp->segs [i]);
if (!ok) {
int j;
for (j = 0; j < i; j++) {
free_seg (&svp->segs [j]);
art_free (svp);
goto fail;
}
}
}
}
invoke_update (item, (double *)aff, svp, flags);
if (svp){
for (i = 0; i < svp->n_segs; i++)
free_seg (&svp->segs [i]);
art_free (svp);
}
fail:
if (getenv ("CC_DEBUG"))
printf ("%g %g %g %g\n", item->x1, item->x2, item->y1, item->y2);
*x1 = item->x1;
*x2 = item->x2;
*y1 = item->y1;
*y2 = item->y2;
cuta = CORBA_UTA (item->canvas->redraw_area);
if (cuta == NULL) {
CORBA_exception_set_system (ev, ex_CORBA_NO_MEMORY, CORBA_COMPLETED_NO);
return NULL;
}
/*
* Now, mark our canvas as fully up to date
*/
/* Clears flags for root item. */
(* gci_class->update) (item->canvas->root, affine, svp, flags);
if (item->canvas->redraw_area) {
art_uta_free (item->canvas->redraw_area);
item->canvas->redraw_area = NULL;
}
item->canvas->need_redraw = FALSE;
return cuta;
}
/**
* art_svp_vpath_stroke: Stroke a vector path.
* @vpath: #ArtVPath to stroke.
* @join: Join style.
* @cap: Cap style.
* @line_width: Width of stroke.
* @miter_limit: Miter limit.
* @flatness: Flatness.
*
* Computes an svp representing the stroked outline of @vpath. The
* width of the stroked line is @line_width.
*
* Lines are joined according to the @join rule. Possible values are
* ART_PATH_STROKE_JOIN_MITER (for mitered joins),
* ART_PATH_STROKE_JOIN_ROUND (for round joins), and
* ART_PATH_STROKE_JOIN_BEVEL (for bevelled joins). The mitered join
* is converted to a bevelled join if the miter would extend to a
* distance of more than @miter_limit * @line_width from the actual
* join point.
*
* If there are open subpaths, the ends of these subpaths are capped
* according to the @cap rule. Possible values are
* ART_PATH_STROKE_CAP_BUTT (squared cap, extends exactly to end
* point), ART_PATH_STROKE_CAP_ROUND (rounded half-circle centered at
* the end point), and ART_PATH_STROKE_CAP_SQUARE (squared cap,
* extending half @line_width past the end point).
*
* The @flatness parameter controls the accuracy of the rendering. It
* is most important for determining the number of points to use to
* approximate circular arcs for round lines and joins. In general, the
* resulting vector path will be within @flatness pixels of the "ideal"
* path containing actual circular arcs. I reserve the right to use
* the @flatness parameter to convert bevelled joins to miters for very
* small turn angles, as this would reduce the number of points in the
* resulting outline path.
*
* The resulting path is "clean" with respect to self-intersections, i.e.
* the winding number is 0 or 1 at each point.
*
* Return value: Resulting stroked outline in svp format.
**/
ArtSVP *
art_svp_vpath_stroke (ArtVpath *vpath,
ArtPathStrokeJoinType join,
ArtPathStrokeCapType cap,
double line_width,
double miter_limit,
double flatness)
{
#ifdef ART_USE_NEW_INTERSECTOR
ArtVpath *vpath_stroke;
ArtSVP *svp, *svp2;
ArtSvpWriter *swr;
vpath_stroke = art_svp_vpath_stroke_raw (vpath, join, cap,
line_width, miter_limit, flatness);
#ifdef VERBOSE
print_ps_vpath (vpath_stroke);
#endif
svp = art_svp_from_vpath (vpath_stroke);
#ifdef VERBOSE
print_ps_svp (svp);
#endif
art_free (vpath_stroke);
swr = art_svp_writer_rewind_new (ART_WIND_RULE_NONZERO);
art_svp_intersector (svp, swr);
svp2 = art_svp_writer_rewind_reap (swr);
#ifdef VERBOSE
print_ps_svp (svp2);
#endif
art_svp_free (svp);
return svp2;
#else
ArtVpath *vpath_stroke, *vpath2;
ArtSVP *svp, *svp2, *svp3;
vpath_stroke = art_svp_vpath_stroke_raw (vpath, join, cap,
line_width, miter_limit, flatness);
#ifdef VERBOSE
print_ps_vpath (vpath_stroke);
#endif
vpath2 = art_vpath_perturb (vpath_stroke);
#ifdef VERBOSE
print_ps_vpath (vpath2);
#endif
art_free (vpath_stroke);
svp = art_svp_from_vpath (vpath2);
#ifdef VERBOSE
print_ps_svp (svp);
#endif
art_free (vpath2);
svp2 = art_svp_uncross (svp);
#ifdef VERBOSE
print_ps_svp (svp2);
#endif
art_svp_free (svp);
svp3 = art_svp_rewind_uncrossed (svp2, ART_WIND_RULE_NONZERO);
#ifdef VERBOSE
print_ps_svp (svp3);
#endif
art_svp_free (svp2);
return svp3;
#endif
}
/**
* art_alphagamma_free: Free an #ArtAlphaGamma.
* @alphagamma: An #ArtAlphaGamma.
*
* Frees the #ArtAlphaGamma.
**/
void
art_alphagamma_free (ArtAlphaGamma *alphagamma)
{
art_free (alphagamma);
}
//!
//! Implement the backing store for a given instance
//!
//! @param[in] instance pointer to the instance
//! @param[in] is_migration_dest
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure
//!
//! @pre The instance parameter must not be NULL.
//!
//! @post
//!
int create_instance_backing(ncInstance * instance, boolean is_migration_dest)
{
int rc = 0;
int ret = EUCA_ERROR;
virtualMachine *vm = &(instance->params);
artifact *sentinel = NULL;
char work_prefix[1024] = { 0 }; // {userId}/{instanceId}
// set various instance-directory-relative paths in the instance struct
set_instance_paths(instance);
// ensure instance directory exists
if (ensure_directories_exist(instance->instancePath, 0, NULL, "root", BACKING_DIRECTORY_PERM) == -1)
goto out;
if (strstr(instance->platform, "windows")) {
// generate the floppy file for windows instances
if (makeWindowsFloppy(nc_state.home, instance->instancePath, instance->keyName, instance->instanceId)) {
LOGERROR("[%s] could not create windows bootup script floppy\n", instance->instanceId);
goto out;
} else {
set_path(instance->floppyFilePath, sizeof(instance->floppyFilePath), instance, "floppy");
}
}else if (instance->instancePk != NULL && strlen(instance->instancePk) > 0) { // TODO: credential floppy is limited to Linux instances ATM
LOGDEBUG("[%s] creating floppy for instance credential\n", instance->instanceId);
if (make_credential_floppy(nc_state.home, instance)) {
LOGERROR("[%s] could not create credential floppy\n", instance->instanceId);
goto out;
} else {
set_path(instance->floppyFilePath, sizeof(instance->floppyFilePath), instance, "floppy");
}
}
set_id(instance, NULL, work_prefix, sizeof(work_prefix));
// compute tree of dependencies
sentinel = vbr_alloc_tree(vm, // the struct containing the VBR
FALSE, // for Xen and KVM we do not need to make disk bootable
TRUE, // make working copy of runtime-modifiable files
is_migration_dest, // tree of an instance on the migration destination
(instance->do_inject_key) ? (instance->keyName) : (NULL), // the SSH key
instance->instanceId); // ID is for logging
if (sentinel == NULL) {
LOGERROR("[%s] failed to prepare backing for instance\n", instance->instanceId);
goto out;
}
sem_p(disk_sem);
{
// download/create/combine the dependencies
rc = art_implement_tree(sentinel, work_bs, cache_bs, work_prefix, INSTANCE_PREP_TIMEOUT_USEC);
}
sem_v(disk_sem);
if (rc != EUCA_OK) {
LOGERROR("[%s] failed to implement backing for instance\n", instance->instanceId);
goto out;
}
if (save_instance_struct(instance)) // update instance checkpoint now that the struct got updated
goto out;
ret = EUCA_OK;
out:
if (sentinel)
art_free(sentinel);
return (ret);
}
/**
* art_svp_from_vpath_raw: Stroke a vector path, raw version
* @vpath: #ArtVPath to stroke.
* @join: Join style.
* @cap: Cap style.
* @line_width: Width of stroke.
* @miter_limit: Miter limit.
* @flatness: Flatness.
*
* Exactly the same as art_svp_vpath_stroke(), except that the resulting
* stroke outline may self-intersect and have regions of winding number
* greater than 1.
*
* Return value: Resulting raw stroked outline in svp format.
**/
ArtVpath *
art_svp_vpath_stroke_raw (ArtVpath *vpath,
ArtPathStrokeJoinType join,
ArtPathStrokeCapType cap,
double line_width,
double miter_limit,
double flatness)
{
int begin_idx, end_idx;
int i;
ArtVpath *forw, *rev;
int n_forw, n_rev;
int n_forw_max, n_rev_max;
ArtVpath *result;
int n_result, n_result_max;
double half_lw = 0.5 * line_width;
int closed;
int last, this, next, second;
double dx, dy;
n_forw_max = 16;
forw = art_new (ArtVpath, n_forw_max);
n_rev_max = 16;
rev = art_new (ArtVpath, n_rev_max);
n_result = 0;
n_result_max = 16;
result = art_new (ArtVpath, n_result_max);
for (begin_idx = 0; vpath[begin_idx].code != ART_END; begin_idx = end_idx)
{
n_forw = 0;
n_rev = 0;
closed = (vpath[begin_idx].code == ART_MOVETO);
/* we don't know what the first point joins with until we get to the
last point and see if it's closed. So we start with the second
line in the path.
Note: this is not strictly true (we now know it's closed from
the opening pathcode), but why fix code that isn't broken?
*/
this = begin_idx;
/* skip over identical points at the beginning of the subpath */
for (i = this + 1; vpath[i].code == ART_LINETO; i++)
{
dx = vpath[i].x - vpath[this].x;
dy = vpath[i].y - vpath[this].y;
if (dx * dx + dy * dy > EPSILON_2)
break;
}
next = i;
second = next;
/* invariant: this doesn't coincide with next */
while (vpath[next].code == ART_LINETO)
{
last = this;
this = next;
/* skip over identical points after the beginning of the subpath */
for (i = this + 1; vpath[i].code == ART_LINETO; i++)
{
dx = vpath[i].x - vpath[this].x;
dy = vpath[i].y - vpath[this].y;
if (dx * dx + dy * dy > EPSILON_2)
break;
}
next = i;
if (vpath[next].code != ART_LINETO)
{
/* reached end of path */
/* make "closed" detection conform to PostScript
semantics (i.e. explicit closepath code rather than
just the fact that end of the path is the beginning) */
if (closed &&
vpath[this].x == vpath[begin_idx].x &&
vpath[this].y == vpath[begin_idx].y)
{
int j;
/* path is closed, render join to beginning */
render_seg (&forw, &n_forw, &n_forw_max,
&rev, &n_rev, &n_rev_max,
vpath, last, this, second,
join, half_lw, miter_limit, flatness);
#ifdef VERBOSE
printf ("%% forw %d, rev %d\n", n_forw, n_rev);
#endif
/* do forward path */
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_MOVETO, forw[n_forw - 1].x,
forw[n_forw - 1].y);
for (j = 0; j < n_forw; j++)
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_LINETO, forw[j].x,
forw[j].y);
/* do reverse path, reversed */
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_MOVETO, rev[0].x,
rev[0].y);
for (j = n_rev - 1; j >= 0; j--)
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_LINETO, rev[j].x,
rev[j].y);
}
else
{
/* path is open */
int j;
/* add to forw rather than result to ensure that
forw has at least one point. */
render_cap (&forw, &n_forw, &n_forw_max,
vpath, last, this,
cap, half_lw, flatness);
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_MOVETO, forw[0].x,
forw[0].y);
for (j = 1; j < n_forw; j++)
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_LINETO, forw[j].x,
forw[j].y);
for (j = n_rev - 1; j >= 0; j--)
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_LINETO, rev[j].x,
rev[j].y);
render_cap (&result, &n_result, &n_result_max,
vpath, second, begin_idx,
cap, half_lw, flatness);
art_vpath_add_point (&result, &n_result, &n_result_max,
ART_LINETO, forw[0].x,
forw[0].y);
}
}
else
render_seg (&forw, &n_forw, &n_forw_max,
&rev, &n_rev, &n_rev_max,
vpath, last, this, next,
join, half_lw, miter_limit, flatness);
}
end_idx = next;
}
art_free (forw);
art_free (rev);
#ifdef VERBOSE
printf ("%% n_result = %d\n", n_result);
#endif
art_vpath_add_point (&result, &n_result, &n_result_max, ART_END, 0, 0);
return result;
}
//!
//! Implement the backing store for a given instance
//!
//! @param[in] instance pointer to the instance
//! @param[in] is_migration_dest
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure
//!
//! @pre The instance parameter must not be NULL.
//!
//! @post
//!
int create_instance_backing(ncInstance * instance, boolean is_migration_dest)
{
int rc = 0;
int ret = EUCA_ERROR;
virtualMachine *vm = &(instance->params);
artifact *sentinel = NULL;
char work_prefix[1024] = { 0 }; // {userId}/{instanceId}
char base_path[EUCA_MAX_PATH];
char user_dir_path[EUCA_MAX_PATH];
// set various instance-directory-relative paths in the instance struct
set_instance_paths(instance);
set_path(base_path, sizeof(base_path), NULL, NULL);
snprintf(user_dir_path, sizeof(user_dir_path), "%s/%s", base_path, instance->userId);
// create backing directory
if ((check_path(user_dir_path) == 1) && (mkdir(user_dir_path, INSTANCE_DIRECTORY_PERM) == -1)) {
LOGERROR("[%s] could not create backing directory %s\n", instance->instanceId, user_dir_path);
goto out;
}
if (mkdir(instance->instancePath, INSTANCE_DIRECTORY_PERM) == -1) {
LOGERROR("[%s] could not create backing directory %s\n", instance->instanceId, instance->instancePath);
goto out;
}
if (strstr(instance->platform, "windows")) {
// generate the floppy file for windows instances
if (makeWindowsFloppy(nc_state.home, instance->instancePath, instance->keyName, instance->instanceId)) {
LOGERROR("[%s] could not create windows bootup script floppy\n", instance->instanceId);
goto out;
} else {
set_path(instance->floppyFilePath, sizeof(instance->floppyFilePath), instance, "floppy");
instance->hasFloppy = TRUE;
}
} else if (instance->credential && strlen(instance->credential)) {
LOGDEBUG("[%s] creating floppy for instance credential\n", instance->instanceId);
if (make_credential_floppy(nc_state.home, instance->instancePath, instance->credential)) {
LOGERROR("[%s] could not create credential floppy\n", instance->instanceId);
goto out;
} else {
set_path(instance->floppyFilePath, sizeof(instance->floppyFilePath), instance, "floppy");
instance->hasFloppy = TRUE;
}
} else if(instance->hasFloppy && is_migration_dest) {
LOGDEBUG("[%s] creating blank instance credential floppy\n", instance->instanceId);
char dest_path[1024] = "";
int fd = 0;
snprintf(dest_path, 1024, "%s/floppy", instance->instancePath);
if ((fd = open(dest_path, O_CREAT | O_TRUNC | O_RDWR, 0700)) < 0) {
LOGERROR("[%s] failed to create fake floppy\n", instance->instanceId);
goto out;
} else {
lseek(fd, 1024*2048-1, SEEK_SET);
write(fd, "\n", 1);
}
close(fd);
} else {
instance->hasFloppy = FALSE;
}
set_id(instance, NULL, work_prefix, sizeof(work_prefix));
// compute tree of dependencies
sentinel = vbr_alloc_tree(vm, // the struct containing the VBR
TRUE, // make working copy of runtime-modifiable files
is_migration_dest, // tree of an instance on the migration destination
(instance->do_inject_key) ? (instance->keyName) : (NULL), // the SSH key
&(instance->bail_flag), // flag indicating that provisioning should bail
instance->instanceId); // ID is for logging
if (sentinel == NULL) {
LOGERROR("[%s] failed to prepare extended backing for instance\n", instance->instanceId);
goto out;
}
sem_p(disk_sem);
{
// download/create/combine the dependencies
rc = art_implement_tree(sentinel, work_bs, cache_bs, work_prefix, INSTANCE_PREP_TIMEOUT_USEC);
}
sem_v(disk_sem);
if (rc != EUCA_OK) {
LOGERROR("[%s] failed to implement backing for instance\n", instance->instanceId);
goto out;
}
// copy EBS entries from VBR[] to volumes[]
for (int i = 0; ((i < EUCA_MAX_VBRS) && (i < instance->params.virtualBootRecordLen)); i++) {
virtualBootRecord *vbr = &(instance->params.virtualBootRecord[i]);
if (vbr->locationType == NC_LOCATION_SC) {
char *volumeId = vbr->id; // id is 'emi-XXXX', replace it with 'vol-XXXX'
ebs_volume_data *vol_data = NULL;
if (deserialize_volume(vbr->resourceLocation, &vol_data) == 0) {
volumeId = vol_data->volumeId;
}
if (save_volume(instance, volumeId, vbr->resourceLocation, // attachmentToken
vbr->preparedResourceLocation, // connect_string
vbr->guestDeviceName, VOL_STATE_ATTACHED, vbr->backingPath) == NULL) { // the XML
LOGERROR("[%s] failed to add record for volume %s\n", instance->instanceId, volumeId);
}
EUCA_FREE(vol_data);
}
}
if (save_instance_struct(instance)) // update instance checkpoint now that the struct got updated
goto out;
ret = EUCA_OK;
out:
if (sentinel)
art_free(sentinel);
return (ret);
}
//!
//! Main entry point of the application
//!
//! @param[in] argc the number of parameter passed on the command line
//! @param[in] argv the list of arguments
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure.
//!
int main(int argc, char *argv[])
{
int i = 0;
int ret = EUCA_OK;
int nparams = 0;
int ncmds = 0;
char *eq = NULL;
char *key = NULL;
char *val = NULL;
char euca_root[] = "";
char argv_str[4096] = "";
char *cmd_name = NULL;
char pid_file[EUCA_MAX_PATH] = "";
FILE *fp = NULL;
pid_t pid = 0;
artifact *root = NULL;
blobstore *work_bs = NULL;
blobstore *cache_bs = NULL;
imager_param *cmd_params = NULL;
log_fp_set(stderr); // imager logs to stderr so image data can be piped to stdout
set_debug(print_debug);
// initialize globals
artifacts_map = map_create(10);
// use $EUCALYPTUS env var if available
euca_home = getenv(EUCALYPTUS_ENV_VAR_NAME);
if (!euca_home) {
euca_home = euca_root;
}
// save the command line into a buffer so it's easier to rerun it by hand
argv_str[0] = '\0';
for (i = 0; i < argc; i++) {
strncat(argv_str, "\"", sizeof(argv_str) - strlen(argv_str) - 1);
strncat(argv_str, argv[i], sizeof(argv_str) - strlen(argv_str) - 1);
strncat(argv_str, "\" ", sizeof(argv_str) - strlen(argv_str) - 1);
}
// initialize dependencies
if (vmdk_init() == EUCA_OK) {
vddk_available = TRUE;
}
// parse command-line parameters
while (*(++argv)) {
eq = strstr(*argv, "="); // all params have '='s
if (eq == NULL) { // it's a command
// process previous command, if any
if (validate_cmd(ncmds, cmd_name, cmd_params, *argv) != NULL)
ncmds++; // increment only if there was a previous command
if (ncmds + 1 > MAX_REQS)
err("too many commands (max is %d)", MAX_REQS);
cmd_name = *argv;
cmd_params = NULL;
nparams = 0;
} else { // this is a parameter
if (strlen(eq) == 1)
usage("parameters must have non-empty values");
*eq = '\0'; // split key from value
if (strlen(*argv) == 1)
usage("parameters must have non-empty names");
key = *argv;
val = eq + 1;
if (key == NULL || val == NULL)
usage("syntax error in parameters");
if (key[0] == '-')
key++; // skip '-' if any
if (key[0] == '-')
key++; // skip second '-' if any
if (cmd_name == NULL) { // without a preceding command => global parameter
set_global_parameter(key, val);
continue;
}
if (cmd_params == NULL) {
cmd_params = calloc(MAX_PARAMS + 1, sizeof(imager_param)); // +1 for terminating NULL
if (!cmd_params)
err("calloc failed");
}
if (nparams + 1 > MAX_PARAMS)
err("too many parameters (max is %d)", MAX_PARAMS);
cmd_params[nparams].key = key;
cmd_params[nparams].val = val;
nparams++;
}
}
if (validate_cmd(ncmds, cmd_name, cmd_params, *argv) != NULL) // validate last command
ncmds++;
LOGINFO("verified all parameters for %d command(s)\n", ncmds);
if (print_argv) {
LOGDEBUG("argv[]: %s\n", argv_str);
}
// record PID, which may be used by VB to kill the imager process (e.g., in cancelBundling)
pid = getpid();
sprintf(pid_file, "%s/imager.pid", get_work_dir());
if ((fp = fopen(pid_file, "w")) == NULL) {
err("could not create pid file");
} else {
fprintf(fp, "%d", pid);
fclose(fp);
}
// invoke the requirements checkers in the same order as on command line,
// constructing the artifact tree originating at 'root'
for (i = 0; i < ncmds; i++) {
if (reqs[i].cmd->requirements != NULL) {
art_set_instanceId(reqs[i].cmd->name); // for logging
if ((root = reqs[i].cmd->requirements(&reqs[i], root)) == NULL) // pass results of earlier checkers to later checkers
err("failed while verifying requirements");
}
}
// it is OK for root to be NULL at this point
// see if work blobstore will be needed at any stage
// and open or create the work blobstore
if (root && tree_uses_blobstore(root)) {
// set the function that will catch blobstore errors
blobstore_set_error_function(&bs_errors);
if (ensure_directories_exist(get_work_dir(), 0, NULL, NULL, BLOBSTORE_DIRECTORY_PERM) == -1)
err("failed to open or create work directory %s", get_work_dir());
work_bs = blobstore_open(get_work_dir(), get_work_limit() / 512, BLOBSTORE_FLAG_CREAT, BLOBSTORE_FORMAT_FILES, BLOBSTORE_REVOCATION_NONE, BLOBSTORE_SNAPSHOT_ANY);
if (work_bs == NULL) {
err("failed to open work blobstore: %s", blobstore_get_error_str(blobstore_get_error()));
}
// no point in fscking the work blobstore as it was just created
}
// see if cache blobstore will be needed at any stage
if (root && tree_uses_cache(root)) {
if (ensure_directories_exist(get_cache_dir(), 0, NULL, NULL, BLOBSTORE_DIRECTORY_PERM) == -1)
err("failed to open or create cache directory %s", get_cache_dir());
cache_bs = blobstore_open(get_cache_dir(), get_cache_limit() / 512, BLOBSTORE_FLAG_CREAT, BLOBSTORE_FORMAT_DIRECTORY, BLOBSTORE_REVOCATION_LRU, BLOBSTORE_SNAPSHOT_ANY);
if (cache_bs == NULL) {
blobstore_close(work_bs);
err("failed to open cache blobstore: %s\n", blobstore_get_error_str(blobstore_get_error()));
}
if (blobstore_fsck(cache_bs, NULL)) //! @TODO: verify checksums?
err("cache blobstore failed integrity check: %s", blobstore_get_error_str(blobstore_get_error()));
if (stat_blobstore(get_cache_dir(), cache_bs))
err("blobstore is unreadable");
}
// implement the artifact tree
ret = EUCA_OK;
if (root) {
art_set_instanceId("imager"); // for logging
ret = art_implement_tree(root, work_bs, cache_bs, NULL, INSTANCE_PREP_TIMEOUT_USEC); // do all the work!
}
// invoke the cleaners for each command to tidy up disk space and memory allocations
for (i = 0; i < ncmds; i++) {
if (reqs[i].cmd->cleanup != NULL) {
art_set_instanceId(reqs[i].cmd->name); // for logging
reqs[i].cmd->cleanup(&reqs[i], (i == (ncmds - 1)) ? (TRUE) : (FALSE));
}
}
// free the artifact tree
if (root) {
if (tree_uses_blobstore(root)) {
if (blobstore_fsck(work_bs, stale_blob_examiner)) { // will remove all blobs
LOGWARN("failed to clean up work space: %s\n", blobstore_get_error_str(blobstore_get_error()));
}
}
art_free(root);
}
clean_work_dir(work_bs);
// indicate completion
LOGINFO("imager done (exit code=%d)\n", ret);
exit(ret);
}
GdkPixBuf *image_load(FILE *f)
{
int w,h,i,j;
art_u8 *pixels=NULL, *dptr;
unsigned char *lines[4], /* Used to expand rows, via rec_outbuf_height, from
the header file:
"* Usually rec_outbuf_height will be 1 or 2, at most 4." */
**lptr;
struct jpeg_decompress_struct cinfo;
struct iojpeg_JPEG_error_mgr jerr;
GdkPixBuf *pixbuf;
/* setup error handler */
cinfo.err = jpeg_std_error(&(jerr.pub));
jerr.pub.error_exit = g_JPEGFatalErrorHandler;
if (sigsetjmp(jerr.setjmp_buffer, 1)) {
/* Whoops there was a jpeg error */
if (pixels != NULL)
art_free(pixels);
jpeg_destroy_decompress(&cinfo);
return NULL;
}
/* load header, setup */
jpeg_create_decompress(&cinfo);
jpeg_stdio_src(&cinfo, f);
jpeg_read_header(&cinfo, TRUE);
jpeg_start_decompress(&cinfo);
cinfo.do_fancy_upsampling = FALSE;
cinfo.do_block_smoothing = FALSE;
w = cinfo.output_width;
h = cinfo.output_height;
g_print("w: %d h: %d\n", w, h);
pixels = art_alloc(h * w * 3);
if (pixels == NULL) {
jpeg_destroy_decompress(&cinfo);
return NULL;
}
dptr = pixels;
/* decompress all the lines, a few at a time */
while (cinfo.output_scanline < cinfo.output_height) {
lptr = lines;
for (i=0;i<cinfo.rec_outbuf_height;i++) {
*lptr++=dptr;
dptr+=w*3;
}
jpeg_read_scanlines(&cinfo, lines, cinfo.rec_outbuf_height);
if (cinfo.output_components==1) {
/* expand grey->colour */
/* expand from the end of the memory down, so we can use
the same buffer */
for (i=cinfo.rec_outbuf_height-1;i>=0;i--) {
unsigned char *from, *to;
from = lines[i]+w-1;
to = lines[i]+w*3-3;
for (j=w-1;j>=0;j--) {
to[0] = from[0];
to[1] = from[0];
to[2] = from[0];
to-=3;
from--;
}
}
}
}
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
/* finish off, create the pixbuf */
pixbuf = gdk_pixbuf_new (art_pixbuf_new_rgb (pixels, w, h, (w * 3)),
NULL);
if (!pixbuf)
art_free (pixels);
return pixbuf;
}
