昨天是七夕，祝大家都过的快乐，希望这句迟到的问候不会造成大家心中的困扰。这一节讲到了前端比较重要的模块，性能以及调试异常模块。一个应用的性能往往是最核心的部分，就像人身体的各个器官一样，一小部分也不能马虎，否则你得到的只是你想象不到的苦果。在这里，我们封装了性能采集，调试输出、变量打印，以及异常收集。希望大家会对这方面有所了解与进步。
结构
CODE
ax模块，文件profile.h
/**
* PAP Engine ( -- )
* $Id profile.h
* @link -- for the canonical source repository
* @copyright Copyright (c) 2013-2014 viticm( viticm@126.com )
* @license
* @user viticm<viticm@126.com/viticm.ti@gmail.com>
* @date 2014-3-16 11:56:11
* @uses the ax profile module, just for system performance
*/
#ifndef VENGINE_CAPABILITY_AX_PROFILE_H_
#define VENGINE_CAPABILITY_AX_PROFILE_H_ #include "vengine/config.h" namespace vengine_capatility { namespace ax { namespace profile { VENGINE_API void samplingbegin();
VENGINE_API void samplingend();
VENGINE_API void pushnode(const char* name, const char* parent = NULL);
VENGINE_API void popnode(const char* name);
VENGINE_API void report(); struct autosampling_t {
autosampling_t();
~autosampling_t();
}; }; //namespace profile }; //namespace ax }; //namespace vengine_capatility
ax模块，文件trace.h
/**
* PAP Engine ( -- )
* $Id trace.h
* @link -- for the canonical source repository
* @copyright Copyright (c) 2013-2014 viticm( viticm@126.com )
* @license
* @user viticm<viticm@126.com/viticm.ti@gmail.com>
* @date 2014-3-16 17:43:42
* @uses vengine capability ax trace module
*/
#ifndef VENGINE_CAPABILITY_AX_TRACE_H_
#define VENGINE_CAPABILITY_AX_TRACE_H_ #include "vengine/config.h" #define AXTRACE_WND_INVALID ((uint8_t)-1) namespace vengine_capability { namespace ax { typedef enum {
kValueInt8,
kValueUint8,
kValueInt16,
kValueUint16,
kValueInt32,
kValueUint32,
kValueInt64,
kValueUint64,
kValueFloat32,
kValueDouble64,
kValueString
} value_enum; VENGINE_API void trace(uint8_t winnumber,
uint8_t typenumber,
const char* format,
...);
VENGINE_API void var(uint8_t winnumber,
uint8_t typenumber,
value_enum variabletype,
const char* valuename,
void* value); }; //namespace ax }; //namespace vengine_capability #endif //VENGINE_CAPABILITY_AX_TRACE_H_
文件debuger.h
/**
* PAP Engine ( --)
* $Id debuger.h
* @link -- for the canonical source repository
* @copyright Copyright (c) 2013-2014 viticm( viticm@126.com )
* @license
* @user viticm<viticm@126.com/viticm.ti@gmail.com>
* @date 2014-3-26 10:34:10
* @uses vengine capability debuger module
*/
#ifndef VENGINE_CAPABILITY_DEBUGER_H_
#define VENGINE_CAPABILITY_DEBUGER_H_ #include "vengine/config.h"
#include "vengine/kernel/node.h" namespace vengine_capability { class Debuger : public vengine_kernel::Node { VENGINE_KERNEL_DECLARE_DYNAMIC(vengine_capability_Debuger); public:
virtual void infotrack_reset(int32_t width, int32_t height) = ;
virtual void infotrack_addpoint(int32_t x, int32_t y) = ; }; }; //namespace vengine_capability #endif //VENGINE_CAPABILITY_DEBUGER_H_
文件profile.h
/**
* PAP Engine ( -- )
* $Id profile.h
* @link -- for the canonical source repository
* @copyright Copyright (c) 2013-2014 viticm( viticm@126.com )
* @license
* @user viticm<viticm@126.com/viticm.ti@gmail.com>
* @date 2014-3-19 13:42:44
* @uses vengine capability profile module
*/
#ifndef VENGINE_CAPABILITY_PROFILE_H_
#define VENGINE_CAPABILITY_PROFILE_H_ #include <hash_set>
#include <hash_map>
#include "vengine/config.h" namespace vengine_capability { namespace profile { struct treenode_t; //堆栈中的节点(用于push/pop)
struct VENGINE_API stacknode_t {
STRING name; //名称
LARGE_INTEGER starttime;
treenode_t* treenode; //树形节点指针
stacknode_t(const char* _name = NULL, const char* extensionname = NULL);
}; //堆栈
struct stack_t {
stack_t() {};
enum {
kStackNumberMax = ,
};
//节点堆
stacknode_t stacknode_list[kStackNumberMax];
//栈顶指针，初始为0
uint16_t topindex;
#ifdef __SGI_STL_PORT
typedef std::hash_set<STRING> hash_nameset;
#else
typedef stdext::hash_set<STRING> hash_nameset;
#endif
hash_nameset hashname;
}; //tree node, 用于统计
struct treenode_t {
#ifdef __SGI_STL_PORT
typedef std::hash_map<STRING, treenode_t*> hash_treenode;
#else
typedef stdext::hash_map<STRING, treenode_t*> hash_treenode;
#endif
STRING name;
uint32_t invokecount; //运行（调用）次数
hash_treenode childmap;
treenode_t* parentnode;
LARGE_INTEGER totaltime; //占用时间
~treenode_t();
}; //节点树
struct tree_t {
treenode_t rootnode;
treenode_t* currentnode;
}; //节点树函数指针
typedef void (__stdcall* function_dump)(const tree_t* nodetree); extern "C" {
VENGINE_API void pushnode(const char* name, const char* extensionname = NULL);
VENGINE_API void popnode(const char* name = NULL);
VENGINE_API void dumpstack(function_dump function); //查询节点信息
}; void tick(); //for vengine time system }; //namespace profile }; //namespace vengine_capability #endif //VENGINE_CAPABILITY_PROFILE_H_
SIMPLE
ax::trace 输出信息
ax::var 变量输出，学习过PHP的应该知道有一个函数叫var_dump
总结
该模块封装了客户端应用的评估模块，即整个客户端的效率采集器，以及常用的调试方法。看似很多东西，其实也没有太过复杂的，输出调试借用了tracewin这个调试工具，大家可以网上找一下，用到的是windows的SendMessage接口。性能模块，封装了和异常有关的一些方法，那么我们下一节就开始讲解异常收集模块。