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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 25 of 27 v3] libxl: reorder device functions to put functions for each device together
# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1318941403 -3600
# Node ID 9a75cc1499dacfd7fc8c1430d77a14f218cd6206
# Parent e619238cec59fd1439af86043fcdfc2d63f5ab10
libxl: reorder device functions to put functions for each device together.
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
diff -r e619238cec59 -r 9a75cc1499da tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Tue Oct 18 13:36:43 2011 +0100
+++ b/tools/libxl/libxl.c Tue Oct 18 13:36:43 2011 +0100
@@ -1113,6 +1113,216 @@ out:
libxl__free_all(&gc);
return rc;
}
+
+static void libxl__device_disk_from_xs_be(libxl__gc *gc,
+ const char *be_path,
+ libxl_device_disk *disk)
+{
+ libxl_ctx *ctx = libxl__gc_owner(gc);
+ unsigned int len;
+ char *tmp;
+
+ libxl_device_disk_init(ctx, disk);
+
+ tmp = xs_read(ctx->xsh, XBT_NULL,
+ libxl__sprintf(gc, "%s/params", be_path), &len);
+ if (tmp && strchr(tmp, ':')) {
+ disk->pdev_path = strdup(strchr(tmp, ':') + 1);
+ free(tmp);
+ } else {
+ disk->pdev_path = tmp;
+ }
+ libxl_string_to_backend(ctx,
+ libxl__xs_read(gc, XBT_NULL,
+ libxl__sprintf(gc, "%s/type", be_path)),
+ &(disk->backend));
+ disk->vdev = xs_read(ctx->xsh, XBT_NULL,
+ libxl__sprintf(gc, "%s/dev", be_path), &len);
+ tmp = libxl__xs_read(gc, XBT_NULL, libxl__sprintf
+ (gc, "%s/removable", be_path));
+
+ if (tmp)
+ disk->removable = atoi(tmp);
+ else
+ disk->removable = 0;
+
+ tmp = libxl__xs_read(gc, XBT_NULL, libxl__sprintf(gc, "%s/mode", be_path));
+ if (!strcmp(tmp, "w"))
+ disk->readwrite = 1;
+ else
+ disk->readwrite = 0;
+
+ tmp = libxl__xs_read(gc, XBT_NULL,
+ libxl__sprintf(gc, "%s/device-type", be_path));
+ disk->is_cdrom = !strcmp(tmp, "cdrom");
+
+ disk->format = LIBXL_DISK_FORMAT_UNKNOWN;
+}
+
+int libxl_devid_to_device_disk(libxl_ctx *ctx, uint32_t domid,
+ int devid, libxl_device_disk *disk)
+{
+ libxl__gc gc = LIBXL_INIT_GC(ctx);
+ char *dompath, *path;
+ int rc = ERROR_FAIL;
+
+ libxl_device_disk_init(ctx, disk);
+
+ dompath = libxl__xs_get_dompath(&gc, domid);
+ if (!dompath) {
+ goto out;
+ }
+ path = libxl__xs_read(&gc, XBT_NULL,
+ libxl__sprintf(&gc, "%s/device/vbd/%d/backend",
+ dompath, devid));
+ if (!path)
+ goto out;
+
+ libxl__device_disk_from_xs_be(&gc, path, disk);
+
+ rc = 0;
+out:
+ libxl__free_all(&gc);
+ return rc;
+}
+
+
+static int libxl__append_disk_list_of_type(libxl__gc *gc,
+ uint32_t domid,
+ const char *type,
+ libxl_device_disk **disks,
+ int *ndisks)
+{
+ char *be_path = NULL;
+ char **dir = NULL;
+ unsigned int n = 0;
+ libxl_device_disk *pdisk = NULL, *pdisk_end = NULL;
+
+ be_path = libxl__sprintf(gc, "%s/backend/%s/%d",
+ libxl__xs_get_dompath(gc, 0), type, domid);
+ dir = libxl__xs_directory(gc, XBT_NULL, be_path, &n);
+ if (dir) {
+ libxl_device_disk *tmp;
+ tmp = realloc(*disks, sizeof (libxl_device_disk) * (*ndisks + n));
+ if (tmp == NULL)
+ return ERROR_NOMEM;
+ *disks = tmp;
+ pdisk = *disks + *ndisks;
+ *ndisks += n;
+ pdisk_end = *disks + *ndisks;
+ for (; pdisk < pdisk_end; pdisk++, dir++) {
+ const char *p;
+ p = libxl__sprintf(gc, "%s/%s", be_path, *dir);
+ libxl__device_disk_from_xs_be(gc, p, pdisk);
+ pdisk->backend_domid = 0;
+ }
+ }
+ return 0;
+}
+
+libxl_device_disk *libxl_device_disk_list(libxl_ctx *ctx, uint32_t domid, int
*num)
+{
+ libxl__gc gc = LIBXL_INIT_GC(ctx);
+ libxl_device_disk *disks = NULL;
+ int rc;
+
+ *num = 0;
+
+ rc = libxl__append_disk_list_of_type(&gc, domid, "vbd", &disks, num);
+ if (rc) goto out_err;
+
+ rc = libxl__append_disk_list_of_type(&gc, domid, "tap", &disks, num);
+ if (rc) goto out_err;
+
+ rc = libxl__append_disk_list_of_type(&gc, domid, "qdisk", &disks, num);
+ if (rc) goto out_err;
+
+ libxl__free_all(&gc);
+ return disks;
+
+out_err:
+ LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Unable to list disks");
+ while (disks && *num) {
+ (*num)--;
+ libxl_device_disk_dispose(&disks[*num]);
+ }
+ free(disks);
+ return NULL;
+}
+
+int libxl_device_disk_getinfo(libxl_ctx *ctx, uint32_t domid,
+ libxl_device_disk *disk, libxl_diskinfo
*diskinfo)
+{
+ libxl__gc gc = LIBXL_INIT_GC(ctx);
+ char *dompath, *diskpath;
+ char *val;
+
+ dompath = libxl__xs_get_dompath(&gc, domid);
+ diskinfo->devid = libxl__device_disk_dev_number(disk->vdev, NULL, NULL);
+
+ /* tap devices entries in xenstore are written as vbd devices. */
+ diskpath = libxl__sprintf(&gc, "%s/device/vbd/%d", dompath,
diskinfo->devid);
+ diskinfo->backend = xs_read(ctx->xsh, XBT_NULL,
+ libxl__sprintf(&gc, "%s/backend", diskpath),
NULL);
+ if (!diskinfo->backend) {
+ libxl__free_all(&gc);
+ return ERROR_FAIL;
+ }
+ val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend-id",
diskpath));
+ diskinfo->backend_id = val ? strtoul(val, NULL, 10) : -1;
+ val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/state",
diskpath));
+ diskinfo->state = val ? strtoul(val, NULL, 10) : -1;
+ val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc,
"%s/event-channel", diskpath));
+ diskinfo->evtch = val ? strtoul(val, NULL, 10) : -1;
+ val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/ring-ref",
diskpath));
+ diskinfo->rref = val ? strtoul(val, NULL, 10) : -1;
+ diskinfo->frontend = xs_read(ctx->xsh, XBT_NULL,
+ libxl__sprintf(&gc, "%s/frontend",
diskinfo->backend), NULL);
+ val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/frontend-id",
diskinfo->backend));
+ diskinfo->frontend_id = val ? strtoul(val, NULL, 10) : -1;
+
+ libxl__free_all(&gc);
+ return 0;
+}
+
+int libxl_cdrom_insert(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
+{
+ int num, i;
+ uint32_t stubdomid;
+ libxl_device_disk *disks;
+ int ret = ERROR_FAIL;
+
+ if (!disk->pdev_path) {
+ disk->pdev_path = strdup("");
+ disk->format = LIBXL_DISK_FORMAT_EMPTY;
+ }
+ disks = libxl_device_disk_list(ctx, domid, &num);
+ for (i = 0; i < num; i++) {
+ if (disks[i].is_cdrom && !strcmp(disk->vdev, disks[i].vdev))
+ /* found */
+ break;
+ }
+ if (i == num) {
+ LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Virtual device not found");
+ goto out;
+ }
+
+ ret = 0;
+
+ libxl_device_disk_remove(ctx, domid, disks + i);
+ libxl_device_disk_add(ctx, domid, disk);
+ stubdomid = libxl_get_stubdom_id(ctx, domid);
+ if (stubdomid) {
+ libxl_device_disk_remove(ctx, stubdomid, disks + i);
+ libxl_device_disk_add(ctx, stubdomid, disk);
+ }
+out:
+ for (i = 0; i < num; i++)
+ libxl_device_disk_dispose(&disks[i]);
+ free(disks);
+ return ret;
+}
+
char * libxl_device_disk_local_attach(libxl_ctx *ctx, libxl_device_disk *disk)
{
libxl__gc gc = LIBXL_INIT_GC(ctx);
@@ -1346,6 +1556,7 @@ out:
libxl__free_all(&gc);
return rc;
}
+
static void libxl__device_nic_from_xs_be(libxl__gc *gc,
const char *be_path,
libxl_device_nic *nic)
@@ -1686,215 +1897,6 @@ out:
return rc;
}
-static void libxl__device_disk_from_xs_be(libxl__gc *gc,
- const char *be_path,
- libxl_device_disk *disk)
-{
- libxl_ctx *ctx = libxl__gc_owner(gc);
- unsigned int len;
- char *tmp;
-
- libxl_device_disk_init(ctx, disk);
-
- tmp = xs_read(ctx->xsh, XBT_NULL,
- libxl__sprintf(gc, "%s/params", be_path), &len);
- if (tmp && strchr(tmp, ':')) {
- disk->pdev_path = strdup(strchr(tmp, ':') + 1);
- free(tmp);
- } else {
- disk->pdev_path = tmp;
- }
- libxl_string_to_backend(ctx,
- libxl__xs_read(gc, XBT_NULL,
- libxl__sprintf(gc, "%s/type", be_path)),
- &(disk->backend));
- disk->vdev = xs_read(ctx->xsh, XBT_NULL,
- libxl__sprintf(gc, "%s/dev", be_path), &len);
- tmp = libxl__xs_read(gc, XBT_NULL, libxl__sprintf
- (gc, "%s/removable", be_path));
-
- if (tmp)
- disk->removable = atoi(tmp);
- else
- disk->removable = 0;
-
- tmp = libxl__xs_read(gc, XBT_NULL, libxl__sprintf(gc, "%s/mode", be_path));
- if (!strcmp(tmp, "w"))
- disk->readwrite = 1;
- else
- disk->readwrite = 0;
-
- tmp = libxl__xs_read(gc, XBT_NULL,
- libxl__sprintf(gc, "%s/device-type", be_path));
- disk->is_cdrom = !strcmp(tmp, "cdrom");
-
- disk->format = LIBXL_DISK_FORMAT_UNKNOWN;
-}
-
-int libxl_devid_to_device_disk(libxl_ctx *ctx, uint32_t domid,
- int devid, libxl_device_disk *disk)
-{
- libxl__gc gc = LIBXL_INIT_GC(ctx);
- char *dompath, *path;
- int rc = ERROR_FAIL;
-
- libxl_device_disk_init(ctx, disk);
-
- dompath = libxl__xs_get_dompath(&gc, domid);
- if (!dompath) {
- goto out;
- }
- path = libxl__xs_read(&gc, XBT_NULL,
- libxl__sprintf(&gc, "%s/device/vbd/%d/backend",
- dompath, devid));
- if (!path)
- goto out;
-
- libxl__device_disk_from_xs_be(&gc, path, disk);
-
- rc = 0;
-out:
- libxl__free_all(&gc);
- return rc;
-}
-
-
-static int libxl__append_disk_list_of_type(libxl__gc *gc,
- uint32_t domid,
- const char *type,
- libxl_device_disk **disks,
- int *ndisks)
-{
- char *be_path = NULL;
- char **dir = NULL;
- unsigned int n = 0;
- libxl_device_disk *pdisk = NULL, *pdisk_end = NULL;
-
- be_path = libxl__sprintf(gc, "%s/backend/%s/%d",
- libxl__xs_get_dompath(gc, 0), type, domid);
- dir = libxl__xs_directory(gc, XBT_NULL, be_path, &n);
- if (dir) {
- libxl_device_disk *tmp;
- tmp = realloc(*disks, sizeof (libxl_device_disk) * (*ndisks + n));
- if (tmp == NULL)
- return ERROR_NOMEM;
- *disks = tmp;
- pdisk = *disks + *ndisks;
- *ndisks += n;
- pdisk_end = *disks + *ndisks;
- for (; pdisk < pdisk_end; pdisk++, dir++) {
- const char *p;
- p = libxl__sprintf(gc, "%s/%s", be_path, *dir);
- libxl__device_disk_from_xs_be(gc, p, pdisk);
- pdisk->backend_domid = 0;
- }
- }
- return 0;
-}
-
-libxl_device_disk *libxl_device_disk_list(libxl_ctx *ctx, uint32_t domid, int
*num)
-{
- libxl__gc gc = LIBXL_INIT_GC(ctx);
- libxl_device_disk *disks = NULL;
- int rc;
-
- *num = 0;
-
- rc = libxl__append_disk_list_of_type(&gc, domid, "vbd", &disks, num);
- if (rc) goto out_err;
-
- rc = libxl__append_disk_list_of_type(&gc, domid, "tap", &disks, num);
- if (rc) goto out_err;
-
- rc = libxl__append_disk_list_of_type(&gc, domid, "qdisk", &disks, num);
- if (rc) goto out_err;
-
- libxl__free_all(&gc);
- return disks;
-
-out_err:
- LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Unable to list disks");
- while (disks && *num) {
- (*num)--;
- libxl_device_disk_dispose(&disks[*num]);
- }
- free(disks);
- return NULL;
-}
-
-int libxl_device_disk_getinfo(libxl_ctx *ctx, uint32_t domid,
- libxl_device_disk *disk, libxl_diskinfo
*diskinfo)
-{
- libxl__gc gc = LIBXL_INIT_GC(ctx);
- char *dompath, *diskpath;
- char *val;
-
- dompath = libxl__xs_get_dompath(&gc, domid);
- diskinfo->devid = libxl__device_disk_dev_number(disk->vdev, NULL, NULL);
-
- /* tap devices entries in xenstore are written as vbd devices. */
- diskpath = libxl__sprintf(&gc, "%s/device/vbd/%d", dompath,
diskinfo->devid);
- diskinfo->backend = xs_read(ctx->xsh, XBT_NULL,
- libxl__sprintf(&gc, "%s/backend", diskpath),
NULL);
- if (!diskinfo->backend) {
- libxl__free_all(&gc);
- return ERROR_FAIL;
- }
- val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend-id",
diskpath));
- diskinfo->backend_id = val ? strtoul(val, NULL, 10) : -1;
- val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/state",
diskpath));
- diskinfo->state = val ? strtoul(val, NULL, 10) : -1;
- val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc,
"%s/event-channel", diskpath));
- diskinfo->evtch = val ? strtoul(val, NULL, 10) : -1;
- val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/ring-ref",
diskpath));
- diskinfo->rref = val ? strtoul(val, NULL, 10) : -1;
- diskinfo->frontend = xs_read(ctx->xsh, XBT_NULL,
- libxl__sprintf(&gc, "%s/frontend",
diskinfo->backend), NULL);
- val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/frontend-id",
diskinfo->backend));
- diskinfo->frontend_id = val ? strtoul(val, NULL, 10) : -1;
-
- libxl__free_all(&gc);
- return 0;
-}
-
-int libxl_cdrom_insert(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
-{
- int num, i;
- uint32_t stubdomid;
- libxl_device_disk *disks;
- int ret = ERROR_FAIL;
-
- if (!disk->pdev_path) {
- disk->pdev_path = strdup("");
- disk->format = LIBXL_DISK_FORMAT_EMPTY;
- }
- disks = libxl_device_disk_list(ctx, domid, &num);
- for (i = 0; i < num; i++) {
- if (disks[i].is_cdrom && !strcmp(disk->vdev, disks[i].vdev))
- /* found */
- break;
- }
- if (i == num) {
- LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Virtual device not found");
- goto out;
- }
-
- ret = 0;
-
- libxl_device_disk_remove(ctx, domid, disks + i);
- libxl_device_disk_add(ctx, domid, disk);
- stubdomid = libxl_get_stubdom_id(ctx, domid);
- if (stubdomid) {
- libxl_device_disk_remove(ctx, stubdomid, disks + i);
- libxl_device_disk_add(ctx, stubdomid, disk);
- }
-out:
- for (i = 0; i < num; i++)
- libxl_device_disk_dispose(&disks[i]);
- free(disks);
- return ret;
-}
-
/******************************************************************************/
int libxl_device_vfb_init(libxl_ctx *ctx, libxl_device_vfb *vfb)
{
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