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qemu: command: Introduce helper for building JSON props of -device into commandline
The helper converts the JSON object to a string and adds it to the current command as arguments of '-device'. The helper also prepares for '-device' taking JSON directly. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
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@ -221,6 +221,33 @@ qemuBuildNetdevCommandlineFromJSON(virCommand *cmd,
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}
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static G_GNUC_UNUSED int
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qemuBuildDeviceCommandlineFromJSON(virCommand *cmd,
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virJSONValue *props,
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virQEMUCaps *qemuCaps)
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{
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g_autofree char *arg = NULL;
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if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_JSON)) {
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if (!(arg = virJSONValueToString(props, false)))
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return -1;
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} else {
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const char *driver = virJSONValueObjectGetString(props, "driver");
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g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
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virBufferAsprintf(&buf, "%s,", driver);
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if (virQEMUBuildCommandLineJSON(props, &buf, "driver", NULL) < 0)
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return -1;
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arg = virBufferContentAndReset(&buf);
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}
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virCommandAddArgList(cmd, "-device", arg, NULL);
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return 0;
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}
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/**
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* qemuBuildMasterKeyCommandLine:
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* @cmd: the command to modify
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