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Re: [Xen-devel] [PATCH] xl: Check for dependencies in xl
| To: | Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] xl: Check for dependencies in xl |
| From: | Kamala Narasimhan <kamala.narasimhan@xxxxxxxxx> |
| Date: | Wed, 19 Jan 2011 13:46:34 -0500 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 19 Jan 2011 10:48:02 -0800 |
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Revised patch based on your comments. Please let me know if there are
further suggestions.
Signed-off-by: Kamala Narasimhan <kamala.narasimhan@xxxxxxxxxx>
Kamala
diff -r fe8a177ae9cb tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Wed Jan 19 15:29:04 2011 +0000
+++ b/tools/libxl/libxl.c Wed Jan 19 13:42:24 2011 -0500
@@ -38,13 +38,24 @@
#define PAGE_TO_MEMKB(pages) ((pages) * 4)
+static char const xenstore_pid_file[] = "/var/run/xenstore.pid";
+
int libxl_ctx_init(libxl_ctx *ctx, int version, xentoollog_logger *lg)
{
+ struct stat stat_buf;
+
if (version != LIBXL_VERSION)
return ERROR_VERSION;
memset(ctx, 0, sizeof(libxl_ctx));
ctx->lg = lg;
memset(&ctx->version_info, 0, sizeof(libxl_version_info));
+
+ if ( stat(xenstore_pid_file, &stat_buf) != 0 ) {
+ LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
+ "Is xenstore daemon running?\nStat on file %s returned -
\"%s\".\n",
+ xenstore_pid_file, strerror(errno));
+ return ERROR_FAIL;
+ }
ctx->xch = xc_interface_open(lg,lg,0);
if (!ctx->xch) {
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