[PATCH 2 of 9] libxl: add shutdown reason to libxl_dominfo

[Ian Campbell <ian.campbell@citrix.com>]

# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1280225493 -3600
# Node ID 74371f414f2012adebba8a8617ddef957f5e3ae0
# Parent  7a0c37f2a9b51ac012a32bcf6ab222580e7cac94
libxl: add shutdown reason to libxl_dominfo

Removes the need for explicit libxl_dominfo.crashed so remove it.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>

diff -r 7a0c37f2a9b5 -r 74371f414f20 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c	Mon Jul 26 11:36:02 2010 +0100
+++ b/tools/libxl/libxl.c	Tue Jul 27 11:11:33 2010 +0100
@@ -405,8 +405,6 @@ static void xcinfo2xlinfo(const xc_domai
 static void xcinfo2xlinfo(const xc_domaininfo_t *xcinfo,
                           struct libxl_dominfo *xlinfo)
 {
-    unsigned int shutdown_reason;
-
     memcpy(&(xlinfo->uuid), xcinfo->handle, sizeof(xen_domain_handle_t));
     xlinfo->domid = xcinfo->domain;
 
@@ -415,14 +413,11 @@ static void xcinfo2xlinfo(const xc_domai
     xlinfo->paused   = !!(xcinfo->flags&XEN_DOMINF_paused);
     xlinfo->blocked  = !!(xcinfo->flags&XEN_DOMINF_blocked);
     xlinfo->running  = !!(xcinfo->flags&XEN_DOMINF_running);
-    xlinfo->crashed  = 0;
 
-    shutdown_reason = (xcinfo->flags>>XEN_DOMINF_shutdownshift) & XEN_DOMINF_shutdownmask;
-
-    if ( xlinfo->shutdown && (shutdown_reason == SHUTDOWN_crash) ) {
-        xlinfo->shutdown = 0;
-        xlinfo->crashed  = 1;
-    }
+    if (xlinfo->shutdown || xlinfo->dying)
+        xlinfo->shutdown_reason = (xcinfo->flags>>XEN_DOMINF_shutdownshift) & XEN_DOMINF_shutdownmask;
+    else
+        xlinfo->shutdown_reason  = ~0;
 
     xlinfo->max_memkb = PAGE_TO_MEMKB(xcinfo->tot_pages);
     xlinfo->cpu_time = xcinfo->cpu_time;
diff -r 7a0c37f2a9b5 -r 74371f414f20 tools/libxl/libxl.h
--- a/tools/libxl/libxl.h	Mon Jul 26 11:36:02 2010 +0100
+++ b/tools/libxl/libxl.h	Tue Jul 27 11:11:33 2010 +0100
@@ -29,8 +29,16 @@ struct libxl_dominfo {
     uint8_t blocked:1;
     uint8_t paused:1;
     uint8_t shutdown:1;
-    uint8_t crashed:1;
     uint8_t dying:1;
+
+    /*
+     * Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying).
+     *
+     * Otherwise set to a value guaranteed not to clash with any valid
+     * SHUTDOWN_* constant.
+     */
+    unsigned int shutdown_reason;
+
     uint64_t max_memkb;
     uint64_t cpu_time;
     uint32_t vcpu_max_id;
diff -r 7a0c37f2a9b5 -r 74371f414f20 tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c	Mon Jul 26 11:36:02 2010 +0100
+++ b/tools/libxl/xl_cmdimpl.c	Tue Jul 27 11:11:33 2010 +0100
@@ -1935,7 +1935,7 @@ void list_domains(int verbose)
                 info[i].blocked ? 'b' : '-',
                 info[i].paused ? 'p' : '-',
                 info[i].shutdown ? 's' : '-',
-                info[i].crashed ? 'c' : '-',
+                info[i].shutdown_reason == SHUTDOWN_crash ? 'c' : '-',
                 info[i].dying ? 'd' : '-',
                 ((float)info[i].cpu_time / 1e9));
         if (verbose) {