kbuffer * kbuffer_new()

void kbuffer_free(kbuffer *buf)

int kbuffer_add(kbuffer *buf, const void* data, int size)

void kbuffer_add_printf(kbuffer *buf, const char *format, ...)

int kbuffer_get_size(kbuffer *buf)

const void * kbuffer_get_contiguous_data(kbuffer *buf, int *size)

void kbuffer_drain(kbuffer *buf, int size)

#include <stdio.h>
#include <assert.h>
#include <memory.h>
#include "kbuffer.h"

int main(int argc, char **argv) {

	// # test case 1
	{
		kbuffer *buf = kbuffer_new();
		size_t i = 0;
		for(i = 0; i < 10; i++)
			kbuffer_add(buf, "data", 4);
		assert(kbuffer_get_size(buf) == 4 * 10);
		kbuffer_free(buf);
	}

	// # test case 2
	{
		kbuffer *buf = kbuffer_new();
		kbuffer_add(buf, "abc", 3);
		kbuffer_add(buf, "def", 3);

		int len = 0;
		const char *str;
		str = (const char *)kbuffer_get_contiguous_data(buf, &len);
		assert(strncmp(str, "abc", 3) == 0 && len == 3);

		kbuffer_drain(buf, 3);
		str = (const char *)kbuffer_get_contiguous_data(buf, &len);
		assert(strncmp(str, "def", 3) == 0 && len == 3);
		kbuffer_free(buf);
	}

	// # test case 3
	{
		kbuffer *buf = kbuffer_new();
		kbuffer_add_printf(buf, "abc%d", 3);

		int len = 0;
		const char *str;
		str = (const char *)kbuffer_get_contiguous_data(buf, &len);
		assert(strncmp(str, "abc3", 4) == 0 && len == 4);
		kbuffer_free(buf);
	}

	printf("unit test ok!\n");
	return 0;
}