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Default values used throughout the repod networking library.

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Network Configuration

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DEFAULT_HOST

DEFAULT_HOST: Final[str] = "127.0.0.1"
Default hostname for connections (localhost). This constant defines the default IP address used when establishing network connections. It points to the loopback interface, ensuring connections stay local to the machine. Type: str
Value: "127.0.0.1"

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DEFAULT_PORT

DEFAULT_PORT: Final[int] = 5071
Default port for connections. This constant defines the default port number used for repod server and client connections. Type: int
Value: 5071

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Protocol Configuration

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HEADER_SIZE

HEADER_SIZE: Final[int] = 4
Size in bytes of the message length header. This defines the number of bytes used for the length prefix in the message framing protocol. A 4-byte header allows messages up to 4GB in size (2³² bytes). Type: int
Value: 4

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HEADER_FORMAT

HEADER_FORMAT: Final[str] = ">I"
Struct format for the header (big-endian unsigned int). This format string is used with Python’s struct module to pack and unpack the message length header. The format specifies:
  • >: Big-endian byte order (network byte order)
  • I: Unsigned integer (4 bytes)
Type: str
Value: ">I"

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READ_BUFFER_SIZE

READ_BUFFER_SIZE: Final[int] = 4096
Buffer size in bytes for reading from sockets. This defines the default chunk size when reading data from network sockets. A 4KB buffer provides a good balance between memory usage and performance for typical message sizes. Type: int
Value: 4096

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Usage Example

from repod.constants import DEFAULT_HOST, DEFAULT_PORT

# Use default connection settings
host = DEFAULT_HOST  # "127.0.0.1"
port = DEFAULT_PORT  # 5071

print(f"Connecting to {host}:{port}")
# Connecting to 127.0.0.1:5071

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