[libvirt] [PATCH 6/9] Remove conn parameter from Linux stats functions

[Matthias Bolte]

It was used for error reporting only.
---
 po/POTFILES.in           |    1 +
 src/lxc/lxc_driver.c     |    2 +-
 src/qemu/qemu_driver.c   |    2 +-
 src/util/stats_linux.c   |   44 +++++++++-----------------------------------
 src/util/stats_linux.h   |    4 ++--
 src/xen/xen_hypervisor.c |    2 +-
 6 files changed, 15 insertions(+), 40 deletions(-)

diff --git a/po/POTFILES.in b/po/POTFILES.in
index 18f5243..3e6440e 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -61,6 +61,7 @@ src/util/json.c
 src/util/logging.c
 src/util/pci.c
 src/util/processinfo.c
+src/util/stats_linux.c
 src/util/storage_file.c
 src/util/util.c
 src/util/uuid.c
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 80a4935..42e411f 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -2048,7 +2048,7 @@ lxcDomainInterfaceStats(virDomainPtr dom,
     }
 
     if (ret == 0)
-        ret = linuxDomainInterfaceStats(dom->conn, path, stats);
+        ret = linuxDomainInterfaceStats(path, stats);
     else
         lxcError(dom->conn, dom, VIR_ERR_INVALID_ARG,
                  _("Invalid path, '%s' is not a known interface"), path);
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 8d121a7..3a80603 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -6821,7 +6821,7 @@ qemudDomainInterfaceStats (virDomainPtr dom,
     }
 
     if (ret == 0)
-        ret = linuxDomainInterfaceStats (dom->conn, path, stats);
+        ret = linuxDomainInterfaceStats(path, stats);
     else
         qemudReportError (dom->conn, dom, NULL, VIR_ERR_INVALID_ARG,
                           _("invalid path, '%s' is not a known interface"), path);
diff --git a/src/util/stats_linux.c b/src/util/stats_linux.c
index 7d8a5f9..25f8d08 100644
--- a/src/util/stats_linux.c
+++ b/src/util/stats_linux.c
@@ -28,35 +28,9 @@
 
 #define VIR_FROM_THIS VIR_FROM_STATS_LINUX
 
-/**
- * statsErrorFunc:
- * @conn: the connection
- * @error: the error number
- * @func: the function failing
- * @info: extra information string
- * @value: extra information number
- *
- * Handle a stats error.
- */
-static void
-statsErrorFunc (virConnectPtr conn,
-                virErrorNumber error, const char *func, const char *info,
-                int value)
-{
-    char fullinfo[1000];
-    const char *errmsg;
-
-    errmsg = virErrorMsg(error, info);
-    if (func != NULL) {
-        snprintf(fullinfo, sizeof (fullinfo) - 1, "%s: %s", func, info);
-        fullinfo[sizeof (fullinfo) - 1] = 0;
-        info = fullinfo;
-    }
-    virRaiseError(conn, NULL, NULL, VIR_FROM_STATS_LINUX, error,
-                    VIR_ERR_ERROR,
-                    errmsg, info, NULL, value, 0, errmsg, info,
-                    value);
-}
+#define virStatsError(code, fmt...)                            \
+    virReportErrorHelper(NULL, VIR_FROM_THIS, code, __FILE__,  \
+                         __FUNCTION__, __LINE__, fmt)
 
 
 /*-------------------- interface stats --------------------*/
@@ -66,8 +40,8 @@ statsErrorFunc (virConnectPtr conn,
  */
 
 int
-linuxDomainInterfaceStats (virConnectPtr conn, const char *path,
-                           struct _virDomainInterfaceStats *stats)
+linuxDomainInterfaceStats(const char *path,
+                          struct _virDomainInterfaceStats *stats)
 {
     int path_len;
     FILE *fp;
@@ -75,8 +49,8 @@ linuxDomainInterfaceStats (virConnectPtr conn, const char *path,
 
     fp = fopen ("/proc/net/dev", "r");
     if (!fp) {
-        statsErrorFunc (conn, VIR_ERR_INTERNAL_ERROR, __FUNCTION__,
-                        "/proc/net/dev", errno);
+        virReportSystemError(errno, "%s",
+                             _("Could not open /proc/net/dev"));
         return -1;
     }
 
@@ -131,8 +105,8 @@ linuxDomainInterfaceStats (virConnectPtr conn, const char *path,
     }
     fclose (fp);
 
-    statsErrorFunc (conn, VIR_ERR_INTERNAL_ERROR, __FUNCTION__,
-                    "/proc/net/dev: Interface not found", 0);
+    virStatsError(VIR_ERR_INTERNAL_ERROR,
+                  "/proc/net/dev: Interface not found");
     return -1;
 }
 
diff --git a/src/util/stats_linux.h b/src/util/stats_linux.h
index 033a50b..3b00620 100644
--- a/src/util/stats_linux.h
+++ b/src/util/stats_linux.h
@@ -15,8 +15,8 @@
 
 #include "internal.h"
 
-extern int linuxDomainInterfaceStats (virConnectPtr conn, const char *path,
-                                      struct _virDomainInterfaceStats *stats);
+extern int linuxDomainInterfaceStats(const char *path,
+                                     struct _virDomainInterfaceStats *stats);
 
 #endif /* __linux__ */
 
diff --git a/src/xen/xen_hypervisor.c b/src/xen/xen_hypervisor.c
index bdb0c3c..aabe546 100644
--- a/src/xen/xen_hypervisor.c
+++ b/src/xen/xen_hypervisor.c
@@ -1477,7 +1477,7 @@ xenHypervisorDomainInterfaceStats (virDomainPtr dom,
         return -1;
     }
 
-    return linuxDomainInterfaceStats (dom->conn, path, stats);
+    return linuxDomainInterfaceStats(path, stats);
 #else
     virXenErrorFunc (dom->conn, VIR_ERR_NO_SUPPORT, __FUNCTION__,
                      "/proc/net/dev: Interface not found", 0);
-- 
1.6.3.3