使用说明.txt

在linux下实现压缩

1.使用的时候，一定要断开NFS连接，将程序拷贝到目标机上，再执行，否则会出错！
2.dest_len 在使用前一定要赋值 !


测试代码备份：
	/*
	* initial the sour_buf
	* test the main zlib function "compress"
	* test the main zlib function "uncompress"
	* ......
	*/	
	sour_len = 1024;
	dest_len = 1024;
	for(i=0; i<1024; i++){
		sour_buf[i] = i%0xff;
	}
	printf("before compress: sour_len=%d, dest_len=%d\n",(unsigned int)sour_len, (unsigned int)dest_len);
	retval = compress(dest_buf, &dest_len, sour_buf, sour_len);
	if(retval == Z_OK){
		printf("compress success! dest_len: %d  dest_buf[0]: %d\n",(unsigned int) dest_len, dest_buf[0]);
	}else{
		printf("compress fail!\n");
		exit (0);
	}

	sour_len =1024;
	memset(sour_buf, 0, sour_len);
	retval = uncompress(sour_buf, &sour_len, dest_buf, dest_len);
	if(retval == Z_OK){
		printf("uncompress success! sour_len: %d,  sour_buf[1]: %d\n",(unsigned int)sour_len, sour_buf[1]);
	}else{
		printf("uncompress fail!\n");
		exit (0);
	}