libxl_domain_info provides a way to get the struct libxl_dominfo
for a single domain given its domid.
Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
tools/libxl/libxl.c | 50 +++++++++++++++++++++++++++++++++++---------------
tools/libxl/libxl.h | 4 +++-
2 files changed, 38 insertions(+), 16 deletions(-)
diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 663cbc1..d3d73be 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -373,6 +373,24 @@ int libxl_domain_resume(struct libxl_ctx *ctx, uint32_t
domid)
return 0;
}
+static void xcinfo2xlinfo(const xc_domaininfo_t *xcinfo,
+ struct libxl_dominfo *xlinfo) {
+ memcpy(&(xlinfo->uuid), xcinfo->handle, sizeof(xen_domain_handle_t));
+ xlinfo->domid = xcinfo->domain;
+
+ if (xcinfo->flags & XEN_DOMINF_dying)
+ xlinfo->dying = 1;
+ else if (xcinfo->flags & XEN_DOMINF_paused)
+ xlinfo->paused = 1;
+ else if (xcinfo->flags & XEN_DOMINF_blocked ||
+ xcinfo->flags & XEN_DOMINF_running)
+ xlinfo->running = 1;
+ xlinfo->max_memkb = PAGE_TO_MEMKB(xcinfo->tot_pages);
+ xlinfo->cpu_time = xcinfo->cpu_time;
+ xlinfo->vcpu_max_id = xcinfo->max_vcpu_id;
+ xlinfo->vcpu_online = xcinfo->nr_online_vcpus;
+}
+
struct libxl_dominfo * libxl_list_domain(struct libxl_ctx *ctx, int *nb_domain)
{
struct libxl_dominfo *ptr;
@@ -381,29 +399,31 @@ struct libxl_dominfo * libxl_list_domain(struct libxl_ctx
*ctx, int *nb_domain)
int size = 1024;
ptr = calloc(size, sizeof(struct libxl_dominfo));
- if (!ptr)
- return NULL;
+ if (!ptr) return NULL;
ret = xc_domain_getinfolist(ctx->xch, 0, 1024, info);
+ if (ret<0) return NULL;
+
for (i = 0; i < ret; i++) {
- memcpy(&(ptr[i].uuid), info[i].handle, sizeof(xen_domain_handle_t));
- ptr[i].domid = info[i].domain;
-
- if (info[i].flags & XEN_DOMINF_dying)
- ptr[i].dying = 1;
- else if (info[i].flags & XEN_DOMINF_paused)
- ptr[i].paused = 1;
- else if (info[i].flags & XEN_DOMINF_blocked || info[i].flags &
XEN_DOMINF_running)
- ptr[i].running = 1;
- ptr[i].max_memkb = PAGE_TO_MEMKB(info[i].tot_pages);
- ptr[i].cpu_time = info[i].cpu_time;
- ptr[i].vcpu_max_id = info[i].max_vcpu_id;
- ptr[i].vcpu_online = info[i].nr_online_vcpus;
+ xcinfo2xlinfo(&info[i], &ptr[i]);
}
*nb_domain = ret;
return ptr;
}
+int libxl_domain_info(struct libxl_ctx *ctx, struct libxl_dominfo *info_r,
+ uint32_t domid) {
+ xc_domaininfo_t xcinfo;
+ int ret;
+
+ ret = xc_domain_getinfolist(ctx->xch, domid, 1, &xcinfo);
+ if (ret<0) return ERROR_FAIL;
+ if (ret==0 || xcinfo.domain != domid) return ERROR_INVAL;
+
+ xcinfo2xlinfo(&xcinfo, info_r);
+ return 0;
+}
+
/* this API call only list VM running on this host. a VM can be an aggregate
of multiple domains. */
struct libxl_vminfo * libxl_list_vm(struct libxl_ctx *ctx, int *nb_vm)
{
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index 2ef8640..43db1f6 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -315,7 +315,9 @@ int libxl_set_memory_target(struct libxl_ctx *ctx, uint32_t
domid, uint32_t targ
int libxl_console_attach(struct libxl_ctx *ctx, uint32_t domid, int cons_num);
-struct libxl_dominfo * libxl_list_domain(struct libxl_ctx *ctx, int
*nb_domain);
+int libxl_domain_info(struct libxl_ctx*, struct libxl_dominfo *info_r,
+ uint32_t domid);
+struct libxl_dominfo * libxl_list_domain(struct libxl_ctx*, int *nb_domain);
struct libxl_vminfo * libxl_list_vm(struct libxl_ctx *ctx, int *nb_vm);
typedef struct libxl_device_model_starting libxl_device_model_starting;
--
1.5.6.5
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