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鉴于此代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>

#define BUF_SIZE 256

int main()
{
    int fd1[2];
    int fd2[2];

    ssize_t numRead = -1;

    // remark : working under the assumption that the messages are of equal length

    const char* messageOne = "Hello world , I'm child number 1\n";
    const char* messageTwo = "Hello world , I'm child number 2\n";

    const unsigned int commLen = strlen(messageOne) + 1;

    char buf[BUF_SIZE];

    if (pipe(fd1) == -1)
    {
        printf("Error opening pipe 1!\n"); …