From 48e3c20199cb08263597329629e446dd01573a5a Mon Sep 17 00:00:00 2001

Message-Id: <48e3c20199cb08263597329629e446dd01573a5a@dist-git>

From: Michal Privoznik <mprivozn@redhat.com>

Date: Wed, 11 Jul 2018 17:27:27 +0200

Subject: [PATCH] qemu_monitor: Introduce qemuMonitorJSONGetPRManagerInfo

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https://bugzilla.redhat.com/show_bug.cgi?id=1470007

This function fetches status of all pr-managers. So far, qemu

reports only a single attribute "connected" but that fits our

needs.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

(cherry picked from commit 5f085862e87668e77333cc369bf66ff3b6c19ae8)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

Reviewed-by: Ján Tomko <jtomko@redhat.com>

---

 src/qemu/qemu_monitor.c      | 25 ++++++++++++

 src/qemu/qemu_monitor.h      |  9 ++++

 src/qemu/qemu_monitor_json.c | 79 ++++++++++++++++++++++++++++++++++++

 src/qemu/qemu_monitor_json.h |  4 ++

 4 files changed, 117 insertions(+)

diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c

index 0de2b91cee..39c3032286 100644

--- a/src/qemu/qemu_monitor.c

+++ b/src/qemu/qemu_monitor.c

@@ -4363,3 +4363,28 @@ qemuMonitorGetSEVMeasurement(qemuMonitorPtr mon)

     return qemuMonitorJSONGetSEVMeasurement(mon);

 }

+

+

+int

+qemuMonitorGetPRManagerInfo(qemuMonitorPtr mon,

+                            virHashTablePtr *retinfo)

+{

+    int ret = -1;

+    virHashTablePtr info = NULL;

+

+    *retinfo = NULL;

+

+    QEMU_CHECK_MONITOR(mon);

+

+    if (!(info = virHashCreate(10, virHashValueFree)))

+        goto cleanup;

+

+    if (qemuMonitorJSONGetPRManagerInfo(mon, info) < 0)

+        goto cleanup;

+

+    VIR_STEAL_PTR(*retinfo, info);

+    ret = 0;

+ cleanup:

+    virHashFree(info);

+    return ret;

+}

diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h

index 22bc1468e7..e3eb14bf06 100644

--- a/src/qemu/qemu_monitor.h

+++ b/src/qemu/qemu_monitor.h

@@ -1160,4 +1160,13 @@ int qemuMonitorBlockdevDel(qemuMonitorPtr mon,

 char *

 qemuMonitorGetSEVMeasurement(qemuMonitorPtr mon);

+typedef struct _qemuMonitorPRManagerInfo qemuMonitorPRManagerInfo;

+typedef qemuMonitorPRManagerInfo *qemuMonitorPRManagerInfoPtr;

+struct _qemuMonitorPRManagerInfo {

+    bool connected;

+};

+

+int qemuMonitorGetPRManagerInfo(qemuMonitorPtr mon,

+                                virHashTablePtr *retinfo);

+

 #endif /* QEMU_MONITOR_H */

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c

index 0c172b6e3c..b226a47cc9 100644

--- a/src/qemu/qemu_monitor_json.c

+++ b/src/qemu/qemu_monitor_json.c

@@ -8202,3 +8202,82 @@ qemuMonitorJSONGetSEVMeasurement(qemuMonitorPtr mon)

     virJSONValueFree(reply);

     return measurement;

 }

+

+

+/*

+ * Example return data

+ *

+ * "return": [

+ *   { "connected": true, "id": "pr-helper0" }

+ *  ]

+ */

+static int

+qemuMonitorJSONExtractPRManagerInfo(virJSONValuePtr reply,

+                                    virHashTablePtr info)

+{

+    qemuMonitorPRManagerInfoPtr entry = NULL;

+    virJSONValuePtr data;

+    int ret = -1;

+    size_t i;

+

+    data = virJSONValueObjectGetArray(reply, "return");

+

+    for (i = 0; i < virJSONValueArraySize(data); i++) {

+        virJSONValuePtr prManager = virJSONValueArrayGet(data, i);

+        const char *alias;

+

+        if (!(alias = virJSONValueObjectGetString(prManager, "id")))

+            goto malformed;

+

+        if (VIR_ALLOC(entry) < 0)

+            goto cleanup;

+

+        if (virJSONValueObjectGetBoolean(prManager,

+                                         "connected",

+                                         &entry->connected) < 0) {

+            goto malformed;

+        }

+

+        if (virHashAddEntry(info, alias, entry) < 0)

+            goto cleanup;

+

+        entry = NULL;

+    }

+

+    ret = 0;

+ cleanup:

+    VIR_FREE(entry);

+    return ret;

+

+ malformed:

+    virReportError(VIR_ERR_INTERNAL_ERROR, "%s",

+                   _("malformed prManager reply"));

+    goto cleanup;

+}

+

+

+int

+qemuMonitorJSONGetPRManagerInfo(qemuMonitorPtr mon,

+                                virHashTablePtr info)

+{

+    int ret = -1;

+    virJSONValuePtr cmd;

+    virJSONValuePtr reply = NULL;

+

+    if (!(cmd = qemuMonitorJSONMakeCommand("query-pr-managers",

+                                           NULL)))

+        return -1;

+

+    if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)

+        goto cleanup;

+

+    if (qemuMonitorJSONCheckReply(cmd, reply, VIR_JSON_TYPE_ARRAY) < 0)

+        goto cleanup;

+

+    ret = qemuMonitorJSONExtractPRManagerInfo(reply, info);

+ cleanup:

+    virJSONValueFree(cmd);

+    virJSONValueFree(reply);

+    return ret;

+

+}

diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h

index 9c8fab7cc0..74af53fe20 100644

--- a/src/qemu/qemu_monitor_json.h

+++ b/src/qemu/qemu_monitor_json.h

@@ -560,4 +560,8 @@ int qemuMonitorJSONBlockdevDel(qemuMonitorPtr mon,

                                const char *nodename)

     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);

+int qemuMonitorJSONGetPRManagerInfo(qemuMonitorPtr mon,

+                                    virHashTablePtr info)

+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);

+

 #endif /* QEMU_MONITOR_JSON_H */

-- 

2.18.0