バッファ等の分割処理

ほにゃららwrite()とかを分割するパーツです。

splitter.c

/* Splitter */

#include <stdio.h>

#define     DEBUG_PRINT(...)    printf(__VA_ARGS__)

static void splitter(size_t total_size, size_t split_size)
{
    size_t offset = 0;
    size_t length = split_size;

    DEBUG_PRINT("\nTotal=%u, Split=%u\n", total_size, split_size);

    while (offset < total_size) {
        if (offset + length > total_size) {
            length = total_size - offset;
        }
        /* ex. write() */
        DEBUG_PRINT("  Offset=%d, Length=%d\n", offset, length);
        offset += length;
    }
    return;
}

/* Test Driver */
int main(void)
{
    splitter(   0, 1000);
    splitter(1000, 1000);

    splitter(2000,  999);
    splitter(2000, 1000);
    splitter(2000, 1001);

    return 0;
}