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Protocol Documentation¶

Table of Contents¶

cc/arduino/cli/monitor/v1/monitor.proto
- MonitorConfig.TargetType
- MonitorService

Scalar Value Types

cc/arduino/cli/monitor/v1/monitor.proto¶

MonitorConfig¶

Tells the monitor which target to open and provides additional parameters that might be needed to configure the targetor the monitor itself.

Field	Type	Label	Description
target	string		The target name.
type	MonitorConfig.TargetType
additional_config	google.protobuf.Struct		Additional parameters that might be needed to configure the target or the monitor itself.
recv_rate_limit_buffer	int32		This parameter indicates how many bytes should be buffered on the server side before dropping. If >0 then the server will enable a rate limiter and will send incoming data to the client only when the client allows it: see the StreamingOpenReq.recv_acknowledge parameter for details.

StreamingOpenRequest¶

The top-level message sent by the client for theStreamingOpen method. MultipleStreamingOpenReq messages can besent but the first message must contain amonitor_config message to initialize the monitor target. All subsequentmessages must contain bytes to be sent to the target and must not contain amonitor_config message.

Field	Type	Label	Description
config	MonitorConfig		Provides information to the monitor that specifies which is the target. The first`StreamingOpenReq` message must contain a`config` message.
data	bytes		The data to be sent to the target being monitored.
recv_acknowledge	int32		When the rate limiter is enabled, this parameter is used to report the number of successfully processed StreamingOpenResp messages (with data).

StreamingOpenResponse¶

Field	Type	Label	Description
data	bytes		The data received from the target.
dropped	int32		The number of bytes dropped. During regular updates this number should be 0, but in case the client is not able to process the recv window quickly enough this parameter will report the number of dropped bytes.

MonitorConfig.TargetType¶

Name	Number	Description
TARGET_TYPE_SERIAL	0
TARGET_TYPE_NULL	99

MonitorService¶

MonitorService provides services for boards monitor

Method Name	Request Type	Response Type	Description
StreamingOpen	StreamingOpenRequest stream	StreamingOpenResponse stream	Open a bidirectional monitor stream. This can be used to implement something similar to the Arduino IDE's Serial Monitor.

Scalar Value Types¶

.proto Type	Notes	C++	Java	Python	Go	C#	PHP	Ruby
double		double	double	float	float64	double	float	Float
float		float	float	float	float32	float	float	Float
int32	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
int64	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead.	int64	long	int/long	int64	long	integer/string	Bignum
uint32	Uses variable-length encoding.	uint32	int	int/long	uint32	uint	integer	Bignum or Fixnum (as required)
uint64	Uses variable-length encoding.	uint64	long	int/long	uint64	ulong	integer/string	Bignum or Fixnum (as required)
sint32	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sint64	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s.	int64	long	int/long	int64	long	integer/string	Bignum
fixed32	Always four bytes. More efficient than uint32 if values are often greater than 2^28.	uint32	int	int	uint32	uint	integer	Bignum or Fixnum (as required)
fixed64	Always eight bytes. More efficient than uint64 if values are often greater than 2^56.	uint64	long	int/long	uint64	ulong	integer/string	Bignum
sfixed32	Always four bytes.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sfixed64	Always eight bytes.	int64	long	int/long	int64	long	integer/string	Bignum
bool		bool	boolean	boolean	bool	bool	boolean	TrueClass/FalseClass
string	A string must always contain UTF-8 encoded or 7-bit ASCII text.	string	String	str/unicode	string	string	string	String (UTF-8)
bytes	May contain any arbitrary sequence of bytes.	string	ByteString	str	[]byte	ByteString	string	String (ASCII-8BIT)

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