util: virstatslinux: make more generic

Rename linuxDomainInterfaceStats to virNetInterfaceStats in order
to allow adding platform specific implementations without
making consumer worrying about specific implementation to be used.

Also, rename util/virstatslinux.c to util/virstats.c so placing
other platform specific implementations into this file don't
look unexpected from the file name.

po/POTFILES.in

@@ -198,7 +198,7 @@ src/util/virrandom.c
 src/util/virsexpr.c
 src/util/virscsi.c
 src/util/virsocketaddr.c
-src/util/virstatslinux.c
+src/util/virstats.c
 src/util/virstorageencryption.c
 src/util/virstoragefile.c
 src/util/virstring.c

src/Makefile.am

@@ -149,7 +149,7 @@ UTIL_SOURCES =							\
 		util/virseclabel.c util/virseclabel.h		\
 		util/virsexpr.c util/virsexpr.h			\
 		util/virsocketaddr.h util/virsocketaddr.c	\
-		util/virstatslinux.c util/virstatslinux.h	\
+		util/virstats.c util/virstats.h	\
 		util/virstorageencryption.c util/virstorageencryption.h \
 		util/virstoragefile.c util/virstoragefile.h	\
 		util/virstring.h util/virstring.c		\

src/libvirt_linux.syms

@@ -6,9 +6,6 @@
 linuxNodeGetCPUStats;
 linuxNodeInfoCPUPopulate;
 
-# util/virstatslinux.h
-linuxDomainInterfaceStats;
-
 # Let emacs know we want case-insensitive sorting
 # Local Variables:
 # sort-fold-case: t

src/libvirt_private.syms

@@ -1886,6 +1886,8 @@ virSocketAddrPrefixToNetmask;
 virSocketAddrSetIPv4Addr;
 virSocketAddrSetPort;
 
+# util/virstats.h
+virNetInterfaceStats;
 
 # util/virstorageencryption.h
 virStorageEncryptionFormat;

src/lxc/lxc_driver.c

@@ -51,7 +51,7 @@
 #include "virnetdevveth.h"
 #include "nodeinfo.h"
 #include "viruuid.h"
-#include "virstatslinux.h"
+#include "virstats.h"
 #include "virhook.h"
 #include "virfile.h"
 #include "virpidfile.h"
@@ -3132,7 +3132,7 @@ lxcDomainInterfaceStats(virDomainPtr dom,
     }
 
     if (ret == 0)
-        ret = linuxDomainInterfaceStats(path, stats);
+        ret = virNetInterfaceStats(path, stats);
     else
         virReportError(VIR_ERR_INVALID_ARG,
                        _("Invalid path, '%s' is not a known interface"), path);

src/openvz/openvz_driver.c

@@ -56,7 +56,7 @@
 #include "virlog.h"
 #include "vircommand.h"
 #include "viruri.h"
-#include "virstatslinux.h"
+#include "virstats.h"
 #include "virstring.h"
 
 #define VIR_FROM_THIS VIR_FROM_OPENVZ
@@ -2010,7 +2010,7 @@ openvzDomainInterfaceStats(virDomainPtr dom,
     }
 
     if (ret == 0)
-        ret = linuxDomainInterfaceStats(path, stats);
+        ret = virNetInterfaceStats(path, stats);
     else
         virReportError(VIR_ERR_INVALID_ARG,
                        _("invalid path, '%s' is not a known interface"), path);

src/qemu/qemu_driver.c

@@ -61,7 +61,7 @@
 #include "datatypes.h"
 #include "virbuffer.h"
 #include "nodeinfo.h"
-#include "virstatslinux.h"
+#include "virstats.h"
 #include "capabilities.h"
 #include "viralloc.h"
 #include "viruuid.h"
@@ -9765,7 +9765,6 @@ qemuDomainBlockStatsFlags(virDomainPtr dom,
     return ret;
 }
 
-#ifdef __linux__
 static int
 qemuDomainInterfaceStats(virDomainPtr dom,
                          const char *path,
@@ -9797,7 +9796,7 @@ qemuDomainInterfaceStats(virDomainPtr dom,
     }
 
     if (ret == 0)
-        ret = linuxDomainInterfaceStats(path, stats);
+        ret = virNetInterfaceStats(path, stats);
     else
         virReportError(VIR_ERR_INVALID_ARG,
                        _("invalid path, '%s' is not a known interface"), path);
@@ -9807,17 +9806,6 @@ qemuDomainInterfaceStats(virDomainPtr dom,
         virObjectUnlock(vm);
     return ret;
 }
-#else
-static int
-qemuDomainInterfaceStats(virDomainPtr dom ATTRIBUTE_UNUSED,
-                         const char *path ATTRIBUTE_UNUSED,
-                         struct _virDomainInterfaceStats *stats ATTRIBUTE_UNUSED)
-{
-    virReportError(VIR_ERR_OPERATION_INVALID, "%s",
-                   _("interface stats not implemented on this platform"));
-    return -1;
-}
-#endif
 
 static int
 qemuDomainSetInterfaceParameters(virDomainPtr dom,

src/uml/uml_driver.c

@@ -47,7 +47,7 @@
 #include "uml_conf.h"
 #include "virbuffer.h"
 #include "nodeinfo.h"
-#include "virstatslinux.h"
+#include "virstats.h"
 #include "capabilities.h"
 #include "viralloc.h"
 #include "viruuid.h"

src/util/virstats.c

@@ -1,5 +1,5 @@
 /*
- * virstatslinux.c: Linux block and network stats.
+ * virstats.c: Block and network stats.
  *
  * Copyright (C) 2007-2010 Red Hat, Inc.
  *
@@ -22,23 +22,20 @@
 
 #include <config.h>
 
-/* This file only applies on Linux. */
-#ifdef __linux__
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <regex.h>
 
-# include <stdio.h>
-# include <stdlib.h>
-# include <fcntl.h>
-# include <string.h>
-# include <unistd.h>
-# include <regex.h>
+#include "virerror.h"
+#include "datatypes.h"
+#include "virstats.h"
+#include "viralloc.h"
+#include "virfile.h"
 
-# include "virerror.h"
-# include "datatypes.h"
-# include "virstatslinux.h"
-# include "viralloc.h"
-# include "virfile.h"
-
-# define VIR_FROM_THIS VIR_FROM_STATS_LINUX
+#define VIR_FROM_THIS VIR_FROM_STATS_LINUX
 
 
 /*-------------------- interface stats --------------------*/
@@ -46,10 +43,10 @@
  * NB. Caller must check that libvirt user is trying to query
  * the interface of a domain they own.  We do no such checking.
  */
-
+#ifdef __linux__
 int
-linuxDomainInterfaceStats(const char *path,
-                          struct _virDomainInterfaceStats *stats)
+virNetInterfaceStats(const char *path,
+                     struct _virDomainInterfaceStats *stats)
 {
     int path_len;
     FILE *fp;
@@ -117,5 +114,14 @@ linuxDomainInterfaceStats(const char *path,
                    _("/proc/net/dev: Interface not found"));
     return -1;
 }
+#else
+int
+virNetInterfaceStats(const char *path ATTRIBUTE_UNUSED,
+                     struct _virDomainInterfaceStats *stats ATTRIBUTE_UNUSED)
+{
+    virReportError(VIR_ERR_OPERATION_INVALID, "%s",
+                   _("interface stats not implemented on this platform"));
+    return -1;
+}
 
 #endif /* __linux__ */

src/util/virstats.h

@@ -1,5 +1,5 @@
 /*
- * virstatslinux.h: Linux block and network stats.
+ * virstats.h: Block and network stats.
  *
  * Copyright (C) 2007 Red Hat, Inc.
  *
@@ -23,13 +23,9 @@
 #ifndef __STATS_LINUX_H__
 # define __STATS_LINUX_H__
 
-# ifdef __linux__
+# include "internal.h"
 
-#  include "internal.h"
-
-extern int linuxDomainInterfaceStats(const char *path,
-                                     struct _virDomainInterfaceStats *stats);
-
-# endif /* __linux__ */
+extern int virNetInterfaceStats(const char *path,
+                                struct _virDomainInterfaceStats *stats);
 
 #endif /* __STATS_LINUX_H__ */

src/xen/xen_hypervisor.c

@@ -68,7 +68,7 @@
 #include "xen_driver.h"
 #include "xen_hypervisor.h"
 #include "xs_internal.h"
-#include "virstatslinux.h"
+#include "virstats.h"
 #include "block_stats.h"
 #include "xend_internal.h"
 #include "virbuffer.h"
@@ -1470,7 +1470,7 @@ xenHypervisorDomainInterfaceStats(virDomainDefPtr def,
         return -1;
     }
 
-    return linuxDomainInterfaceStats(path, stats);
+    return virNetInterfaceStats(path, stats);
 #else
     virReportError(VIR_ERR_OPERATION_INVALID, "%s",
                    _("/proc/net/dev: Interface not found"));

tests/statstest.c

@@ -5,7 +5,7 @@
 #include <string.h>
 #include <sys/utsname.h>
 
-#include "virstatslinux.h"
+#include "virstats.h"
 #include "internal.h"
 #include "xen/block_stats.h"
 #include "testutils.h"