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From 28699a44646cf4a754808fb2c815c741343264cd Mon Sep 17 00:00:00 2001
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Message-Id: <28699a44646cf4a754808fb2c815c741343264cd@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 4 Feb 2020 15:08:17 +0100
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Subject: [PATCH] util: json: Introduce virJSONValueArrayConcat
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Add a helper that concatenates the second array into the first.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit 3b60a0c0276ae7200b0bff7394e0d1e00706a1dd)
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https://bugzilla.redhat.com/show_bug.cgi?id=1207659
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Message-Id: <d7f92bced2f95d7802dd3a823b7c6b966e454a7e.1580824112.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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 src/libvirt_private.syms |  1 +
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 src/util/virjson.c       | 31 +++++++++++++++++++++++++++++++
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 src/util/virjson.h       |  2 ++
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 3 files changed, 34 insertions(+)
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diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
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index afa7d4fcae..bc2858fc00 100644
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--- a/src/libvirt_private.syms
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+++ b/src/libvirt_private.syms
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@@ -2279,6 +2279,7 @@ virISCSIScanTargets;
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 virJSONStringReformat;
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 virJSONValueArrayAppend;
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 virJSONValueArrayAppendString;
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+virJSONValueArrayConcat;
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 virJSONValueArrayForeachSteal;
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 virJSONValueArrayGet;
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 virJSONValueArraySize;
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diff --git a/src/util/virjson.c b/src/util/virjson.c
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index 988a09e956..50993648eb 100644
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--- a/src/util/virjson.c
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+++ b/src/util/virjson.c
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@@ -811,6 +811,37 @@ virJSONValueArrayAppendString(virJSONValuePtr object,
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 }
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+/**
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+ * virJSONValueArrayConcat:
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+ * @a: JSON value array (destination)
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+ * @c: JSON value array (source)
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+ *
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+ * Merges the members of @c array into @a. The values are stolen from @c.
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+ */
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+int
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+virJSONValueArrayConcat(virJSONValuePtr a,
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+                        virJSONValuePtr c)
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+{
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+    size_t i;
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+
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+    if (a->type != VIR_JSON_TYPE_ARRAY ||
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+        c->type != VIR_JSON_TYPE_ARRAY) {
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+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("expecting JSON array"));
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+        return -1;
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+    }
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+
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+    a->data.array.values = g_renew(virJSONValuePtr, a->data.array.values,
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+                                   a->data.array.nvalues + c->data.array.nvalues);
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+
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+    for (i = 0; i < c->data.array.nvalues; i++)
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+        a->data.array.values[a->data.array.nvalues++] = g_steal_pointer(&c->data.array.values[i]);
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+
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+    c->data.array.nvalues = 0;
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+
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+    return 0;
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+}
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+
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+
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 int
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 virJSONValueObjectHasKey(virJSONValuePtr object,
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                          const char *key)
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diff --git a/src/util/virjson.h b/src/util/virjson.h
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index 7a6b063b17..0894e91b59 100644
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--- a/src/util/virjson.h
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+++ b/src/util/virjson.h
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@@ -71,6 +71,8 @@ virJSONValuePtr virJSONValueNewArrayFromBitmap(virBitmapPtr bitmap);
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 int virJSONValueObjectAppend(virJSONValuePtr object, const char *key, virJSONValuePtr value);
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 int virJSONValueArrayAppend(virJSONValuePtr object, virJSONValuePtr value);
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+int virJSONValueArrayConcat(virJSONValuePtr a,
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+                            virJSONValuePtr c);
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 int virJSONValueObjectHasKey(virJSONValuePtr object, const char *key);
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 virJSONValuePtr virJSONValueObjectGet(virJSONValuePtr object, const char *key);
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-- 
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2.25.0
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