[libvirt] [PATCH] Add showError function to display error data generated by libvirt.
---
examples/hellolibvirt/hellolibvirt.c | 46 ++++++++++++++++++++++++++++++++++
1 files changed, 46 insertions(+), 0 deletions(-)
diff --git a/examples/hellolibvirt/hellolibvirt.c b/examples/hellolibvirt/hellolibvirt.c
index cc1af0f..234637e 100644
--- a/examples/hellolibvirt/hellolibvirt.c
+++ b/examples/hellolibvirt/hellolibvirt.c
@@ -6,6 +6,43 @@
#include <stdio.h>
#include <stdlib.h>
#include <libvirt/libvirt.h>
+#include <libvirt/virterror.h>
+
+static void
+showError(virConnectPtr conn)
+{
+ int ret;
+ virErrorPtr err;
+
+ err = malloc(sizeof(*err));
+ if (NULL == err) {
+ printf("Could not allocate memory for error data\n");
+ goto out;
+ }
+
+ ret = virConnCopyLastError(conn, err);
+
+ switch (ret) {
+ case 0:
+ printf("No error found\n");
+ break;
+
+ case -1:
+ printf("Parameter error when attempting to get last error\n");
+ break;
+
+ default:
+ printf("libvirt reported: \"%s\"\n", err->message);
+ break;
+ }
+
+ virResetError(err);
+ free(err);
+
+out:
+ return;
+}
+
static int
showHypervisorInfo(virConnectPtr conn)
@@ -22,12 +59,14 @@ showHypervisorInfo(virConnectPtr conn)
if (NULL == hvType) {
ret = 1;
printf("Failed to get hypervisor type\n");
+ showError(conn);
goto out;
}
if (0 != virConnectGetVersion(conn, &hvVer)) {
ret = 1;
printf("Failed to get hypervisor version\n");
+ showError(conn);
goto out;
}
@@ -57,6 +96,7 @@ showDomains(virConnectPtr conn)
if (-1 == numActiveDomains) {
ret = 1;
printf("Failed to get number of active domains\n");
+ showError(conn);
goto out;
}
@@ -64,6 +104,7 @@ showDomains(virConnectPtr conn)
if (-1 == numInactiveDomains) {
ret = 1;
printf("Failed to get number of inactive domains\n");
+ showError(conn);
goto out;
}
@@ -85,6 +126,7 @@ showDomains(virConnectPtr conn)
if (-1 == numNames) {
ret = 1;
printf("Could not get list of defined domains from hypervisor\n");
+ showError(conn);
goto out;
}
@@ -124,6 +166,7 @@ main(int argc, char *argv[])
if (NULL == conn) {
ret = 1;
printf("No connection to hypervisor\n");
+ showError(conn);
goto out;
}
@@ -131,6 +174,7 @@ main(int argc, char *argv[])
if (NULL == uri) {
ret = 1;
printf("Failed to get URI for hypervisor connection\n");
+ showError(conn);
goto disconnect;
}
@@ -150,6 +194,8 @@ main(int argc, char *argv[])
disconnect:
if (0 != virConnectClose(conn)) {
printf("Failed to disconnect from hypervisor\n");
+ showError(conn);
+ ret = 1;
} else {
printf("Disconnected from hypervisor\n");
}
--
1.6.0.6