so i went ahead and backed out my changes from last night.
there are now no hardcoded limits on the sizes of the name, type,
units, and value in a gmetric message.
if added the following defines in protocol.x
#define GANGLIA_MTU 1500
#define UDP_HEADER_SIZE 28
#define GANGLIA_MAX_XDR_MESSAGE_LEN (GANGLIA_MTU - UDP_HEADER_SIZE - 8)
that means that the total length of the name, value, type and units
strings cannot exceed 1448 bytes.
1500 MTU - 28 for UDP header - 8 for discriminant union - 16 for
string int lengths = 1448
please test this code and let me know. it's really even less changes
than before... just checking if a buffer gets full and erroring out.
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