uv_fs_read函数对应文件读取。不同于阻塞的文件读操作,这个函数可以无需等待文件读取完成,实现程序的其它操作同时进行。 UV_FS_WRITE:写入文件 与读操作类似,uv_fs_write函数支持异步地将数据写入到文件中。这提高了文件操作的性能,特别是在处理大型数据时。 UV_FS_CLOSE:关闭文件 完成文件操作后,uv_fs_close函数...
close 阶段可以用来关闭一个 handle,并且执行一个回调。比如用于释 放动态申请的内存。close 阶段的任务由 uv_close 产生 例如在停止 poll 的时候会调用 uv_close intuv_fs_poll_stop(uv_fs_poll_t*handle){structpoll_ctx*ctx;if(!uv_is_active((uv_handle_t*)handle))return0;ctx=handle->poll_ctx;as...
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将uv存到v0中去,供片段程序使用。 然后在片段程序里面:tex ft0, v0, fs0 <2d,repeat,miplinear>。即tex命令就会根据uv值从纹理图里面去采集颜色信息了,然后显示出来。大家可能会有疑问,明明左上角和右上角离了那么远,并且我也只指定两个uv值,中间并没有指定啊,为什么中间也显示出来了呢?这个过程其实是gpu...
uv_fs_close(uv_default_loop(), &close_req, open_req.result, NULL); printf("***Read file done!!!"); } else if (req->result > 0) { iov.len = req->result; // 读取数据的长度(数据读写完毕才触发回调) // 因为cat功能,所以将读取的数据写入控制台 uv_fs...
staticvoidon_timer(uv_timer_t*timer){printf("on uv timer\n");}staticvoid*echo_thread(void*data){uv_async_t*async=(uv_async_t*)data;printf("hello thread\n");uv_async_send(async);returnNULL;}staticvoidasync_cb(uv_async_t*async){printf("async cb\n");uv_close(async,NULL);free(as...
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While very little optical power is needed, optogenetics lasers (typically ns ps or fs pulsed, visible) are still the preferred delivery method because of their ability to be focused and targeted to specific areas of the brain. Additionally, several wavelengths in the near-infrared region allow ...
uv_fs_cb cb; ssize_t result; void* ptr; const char* path; uv_stat_t statbuf; /* Stores the result of uv_fs_stat() and uv_fs_fstat(). */ UV_FS_PRIVATE_FIELDS }; UV_EXTERN void uv_fs_req_cleanup(uv_fs_t* req); UV_EXTERN int uv_fs_close(uv_loop_t* loop...
hadoop fs-getmerge/hivedata/warehouse/liuxiaowen.db/big_cookies/* big_cookies.txt [liuxiaowen@dev site_raw_log]$ wc -l big_cookies.txt 547631464 cookies.txt //总大小 [liuxiaowen@dev site_raw_log]$ ll big_cookies.txt -rw-r--r--. 1 liuxiaowen liuxiaowen 12610638153 Sep 25 13:25...