{ init_queue(&q); pthread_t one, two; pthread_create(&one, NULL, (void*)&thread_one, NULL); pthread_create(&two, NULL, (void*)&thread_two, NULL); pthread_join(one, NULL); pthread_join(two, NULL); char *buf = NULL; size_t size; int count=0, sum=0; while((buf = (...
std::unique_lock<std::mutex>lock(_queueMutex); waitForData(lock, msTimeout); size =popData(dataVec); } returnsize; } size_tsize()const { return_numEnqueued; } /* ** This function allows you to perform operations on the ** vector in a thread safe way. The functor is a function ...
"queue.buffering.max.ms":5,//在构造消息批次(MessageSets)传输到Broker之前,默认延迟5ms攒批消息 "queue.buffering.max.messages":100000,//Producer攒批发送中,总的消息数不能超过100000 "queue.buffering.max.kbytes":1048576,//Producer攒批发送中,MessageSets "message.send.max.retries":2147483647,//重试次...
Action是String公共参数,本接口取值:CreateCmqQueue。 Version是String公共参数,本接口取值:2020-02-17。 Region是String公共参数,详见产品支持的地域列表。 QueueName是String队列名字,在单个地域同一账号下唯一。队列名称是一个不超过 64 个字符的字符串,必须以字母为首字符,剩余部分可以包含字母、数字和横划线(-)。
int nice; if (priority < UV_THREAD_PRIORITY_LOWEST || priority > UV_THREAD_PRIORITY_HIGHEST) return UV_EINVAL; pid_t pid = gettid(); nice = 0 - priority * 2; r = setpriority(PRIO_PROCESS, pid, nice); if (r != 0) return UV__ERR(errno); ...
#include "thread-utils.h" #include "trace2.h" struct pc_worker { struct child_process cp; size_t next_item_to_complete, nr_items_to_complete; }; struct parallel_checkout { enum pc_status status; struct parallel_checkout_item *items; /* The parallel checkout queue. */ ...
The switcher has no state other than the state borrowed from the running thread via the trusted stack and is small enough to be audited easily. It always runs with interrupts disabled and so is simple to audit for security. This is critical because it could violate compartment isolation by no...
GCD是一种与 block 有关的技术,它提供了对线程的抽象,而这种抽象则基于“派发队列” (dispatch queue) 。开发者可将块排入队列中,由GCD负责处理所有调度事宜。GCD会根据系统资源情况,适时地创建、复用、摧毁后台线程(background thread),以便处理每个队列。 此外,使用GCD还可以方便地完成常见编程任务,比如编写 “只...
使用另一份实现来替换原有的方法实现,这道工序叫做"方法调配"(method swizzling),开发者常用此技术向原有实现中添加功能。 一般来说,只有调试程序的时候才需要在runtime中修改方法实现,这种做法不宜滥用。 第14条.理解“类对象”的用意 要点 每个实例都有一个指向Class对象的指针,用以表明其类型,而这些Class对象则...
先把一个简单程序用afl-gcc编译,代码来源(https://github.com/mykter/afl-training) #include<string.h>#include<stdio.h>#include<unistd.h>#include<stdlib.h>#defineINPUTSIZE 100intprocess(char*input){char*out;char*rest;intlen;if(strncmp(input,"u...