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  • pipe----管道----fork

    #include <stdio.h>
    #include <unistd.h>
    #include <stdlib.h>
    #include <string.h>
    
    
    int main() {
    	int data_processed;
    	int file_pipes[2];
    	const char some_data[] = "123";
    	char buffer[BUFSIZ + 1];
    	pid_t fork_result;
    
    
    	memset(buffer, '', sizeof(buffer));
    
    
    	if(pipe(file_pipes) == 0) {
    		fork_result = fork();
    		if(fork_result == -1) {
    			fprintf(stderr, "Fork failure");
    			exit(EXIT_FAILURE);
    		}
    		if(fork_result == 0) {
    			data_processed = read(file_pipes[0], buffer, BUFSIZ);
    			printf("Read %d bytes: %s
    ", data_processed, buffer);
    			exit(EXIT_SUCCESS);
    		} else {
    			data_processed = write(file_pipes[1], some_data, strlen(some_data));
    			printf("Wrote %d bytes
    ", data_processed);
    		}
    	}
    	exit(EXIT_SUCCESS);
    }



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  • 原文地址:https://www.cnblogs.com/jiangu66/p/3196520.html
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