buffer

The gem to operate low level I/O data buffer

Example

“em install ‘data-buffer’

“

“by require ‘buffer’

buf = Buffer.new(1024) # Create char* buffer with size of 1024 buf.clear # memset 0 to buffer size buf.size # return buffer size buf.to_s # convert to string. WARNING: make sure the string has NUL terminator buf.bytes # convert to char byte array

buf.resize(2048) # realloc the buffer to 2048

buf = Buffer.from(‘Hello World’) # Create char* from existing string buf = Buffer.from([1, 2, 3, 244]) # Create char* from existing char array

buf.data # Get raw data struct

struct buffer_data

size_t buffer_size;

char* buffer;

;

#

buffer_data* data = (buffer_data) ((struct RData)obj)->data;

“