Add Linux-VServer support,

contributed by Jonathan Sambrook and Benedikt Bohm

ChangeLog

@@ -1,4 +1,9 @@
 
+What's new in version 0.8.1
+
+* Linux-VServer support
+ (thanks to Jonathan Sambrook and Benedikt Bohm)
+
 What's new in version 0.8
 
 * Ability to change sort column with the mouse by

Process.c

@@ -49,6 +49,9 @@ typedef enum ProcessField_ {
    #ifdef HAVE_OPENVZ
    VEID, VPID,
    #endif
+   #ifdef HAVE_VSERVER
+   VXID,
+   #endif
    #ifdef HAVE_TASKSTATS
    RCHAR, WCHAR, SYSCR, SYSCW, RBYTES, WBYTES, CNCLWB, IO_READ_RATE, IO_WRITE_RATE, IO_RATE,
    #endif
@@ -124,6 +127,9 @@ typedef struct Process_ {
    unsigned int veid;
    unsigned int vpid;
    #endif
+   #ifdef HAVE_VSERVER
+   unsigned int vxid;
+   #endif
    #ifdef HAVE_TASKSTATS
    unsigned long long io_rchar;
    unsigned long long io_wchar;
@@ -159,6 +165,9 @@ char *Process_fieldNames[] = {
 #ifdef HAVE_OPENVZ
    "VEID", "VPID",
 #endif
+#ifdef HAVE_VSERVER
+   "VXID",
+#endif
 #ifdef HAVE_TASKSTATS
    "RCHAR", "WCHAR", "SYSCR", "SYSCW", "RBYTES", "WBYTES", "CNCLWB",
    "IO_READ_RATE", "IO_WRITE_RATE", "IO_RATE",
@@ -178,6 +187,9 @@ char *Process_fieldTitles[] = {
 #ifdef HAVE_OPENVZ
    " VEID ", " VPID ",
 #endif
+#ifdef HAVE_VSERVER
+   " VXID ",
+#endif
 #ifdef HAVE_TASKSTATS
    "   RD_CHAR ", "   WR_CHAR ", "   RD_SYSC ", "   WR_SYSC ", "     IO_RD ", "     IO_WR ", " IO_CANCEL ",
    " IORR ", " IOWR ", "   IO ",
@@ -388,6 +400,9 @@ static void Process_writeField(Process* this, RichString* str, ProcessField fiel
    case VEID: snprintf(buffer, n, "%5u ", this->veid); break;
    case VPID: snprintf(buffer, n, "%5u ", this->vpid); break;
    #endif
+   #ifdef HAVE_VSERVER
+   case VXID: snprintf(buffer, n, "%5u ", this->vxid); break;
+   #endif
    #ifdef HAVE_TASKSTATS
    case RCHAR:  snprintf(buffer, n, "%10llu ", this->io_rchar); break;
    case WCHAR:  snprintf(buffer, n, "%10llu ", this->io_wchar); break;   
@@ -556,6 +571,10 @@ int Process_compare(const void* v1, const void* v2) {
    case VPID:
       return (p1->vpid - p2->vpid);
    #endif
+   #ifdef HAVE_VSERVER
+   case VXID:
+      return (p1->vxid - p2->vxid);
+   #endif
    #ifdef HAVE_TASKSTATS
    case RCHAR:  diff = p2->io_rchar - p1->io_rchar; goto test_diff;
    case WCHAR:  diff = p2->io_wchar - p1->io_wchar; goto test_diff;

Process.h

@@ -51,6 +51,9 @@ typedef enum ProcessField_ {
    #ifdef HAVE_OPENVZ
    VEID, VPID,
    #endif
+   #ifdef HAVE_VSERVER
+   VXID,
+   #endif
    #ifdef HAVE_TASKSTATS
    RCHAR, WCHAR, SYSCR, SYSCW, RBYTES, WBYTES, CNCLWB, IO_READ_RATE, IO_WRITE_RATE, IO_RATE,
    #endif
@@ -126,6 +129,9 @@ typedef struct Process_ {
    unsigned int veid;
    unsigned int vpid;
    #endif
+   #ifdef HAVE_VSERVER
+   unsigned int vxid;
+   #endif
    #ifdef HAVE_TASKSTATS
    unsigned long long io_rchar;
    unsigned long long io_wchar;

ProcessList.c

@@ -639,6 +639,40 @@ static bool ProcessList_processEntries(ProcessList* this, char* dirname, Process
                fclose(status);
             }
             #endif
+
+            #ifdef HAVE_VSERVER
+            snprintf(statusfilename, MAX_NAME, "%s/%s/status", dirname, name);
+            status = ProcessList_fopen(this, statusfilename, "r");
+            if (status == NULL) 
+               goto errorReadingProcess;
+            else {
+               char buffer[256];
+               process->vxid = 0;
+               while (!feof(status)) {
+                  char* ok = fgets(buffer, 255, status);
+                  if (!ok)
+                     break;
+
+                  if (String_startsWith(buffer, "VxID:")) {
+                     int vxid;
+                     int ok = ProcessList_read(this, buffer, "VxID:\t%d", &vxid);
+                     if (ok >= 1) {
+                        process->vxid = vxid;
+                     }
+                  }
+                  #if defined HAVE_ANCIENT_VSERVER
+                  else if (String_startsWith(buffer, "s_context:")) {
+                     int vxid;
+                     int ok = ProcessList_read(this, buffer, "s_context:\t%d", &vxid);
+                     if (ok >= 1) {
+                        process->vxid = vxid;
+                     }
+                  }
+                  #endif
+               }
+               fclose(status);
+            }
+            #endif
  
             snprintf(statusfilename, MAX_NAME, "%s/%s/cmdline", dirname, name);
             status = ProcessList_fopen(this, statusfilename, "r");

configure.ac

@@ -69,6 +69,17 @@ if test "x$enable_openvz" = xyes; then
    AC_DEFINE(HAVE_OPENVZ, 1, [Define if openvz support enabled.])
 fi
 
+AC_ARG_ENABLE(vserver, [AC_HELP_STRING([--enable-vserver], [enable VServer support])], ,enable_vserver="no")
+if test "x$enable_vserver" = xyes; then
+    AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
+fi
+
+AC_ARG_ENABLE(ancient_vserver, [AC_HELP_STRING([--enable-ancient-vserver], [enable ancient VServer support (implies --enable-vserver)])], ,enable_ancient_vserver="no")
+if test "x$enable_ancient_vserver" = xyes; then
+    AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
+    AC_DEFINE(HAVE_ANCIENT_VSERVER, 1, [Define if ancient vserver support enabled.])
+fi
+
 AC_ARG_ENABLE(taskstats, [AC_HELP_STRING([--enable-taskstats], [enable per-task IO Stats (taskstats kernel sup required)])], ,enable_taskstats="yes")
 if test "x$enable_taskstats" = xyes; then
     AC_DEFINE(HAVE_TASKSTATS, 1, [Define if taskstats support enabled.])