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mem.c
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mem.c
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/*
* memory.c
*
* Created on: 2013-6-6
* Author: xd
*/
#include "mem.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
struct errCodeStr globalErrStr[]=
{
{SETUP_ERR , "SETUP_ERR"},
{MEM_ERR , "ERR"},
{MEM_OK , "OK"},
{ALREADY_INSTALL , "ALREADY_INSTALL"},
{UNINSTALL , "UNINSTALL"},
{IN_INT , "IN_INT"},
{SIZE_TOO_BIG , "SIZE_TOO_BIG"},
{NO_ENOUGH_MEMORY , "NO_ENOUGH_MEMORY"},
{ALREADY_MALLOC , "ALREADY_MALLOC"},
{IMPOSSIBLE_ERR , "IMPOSSIBLE_ERR"},
{MEM_REGION_CONFLICT , "MEM_REGION_CONFLICT"},
{NOT_RIGHT_REGION_MEMORY , "NOT_RIGHT_REGION_MEMORY"},
{CONTROL_BLOCK_LENGTH_ERR , "CONTROL_BLOCK_LENGTH_ERR"},
{STATE_NOT_EXCEPT , "STATE_NOT_EXCEPT"},
{CTRL_BLOCK_BREAK , "CTRL_BLOCK_BREAK"},
{IN_CHECK_STATUS , "IN_CHECK_STATUS"},
{IN_SHOW_STATUS , "IN_SHOW_STATUS"},
{CONFIG_ERR , "CONFIG_ERR"},
{CHECK_SUM_ERR , "CHECK_SUM_ERR"},
{ERR_MAX , "ERR_MAX"},
};
struct memStateStr globalMemStateStr[]=
{
{INIT_STATE , "INIT" },
{FREE_STATE , "OK"},
{MALLOC_STATE , "OK"},
{REMALLOC_STATE , "REMALLOC"},
{BAD_STATE , "BAD"},
{STATE_MAX , "STATE_MAX"},
};
struct memActionStr globalMemActionStr[]=
{
{FREE_ACTION , "FREE"},
{MALLOC_ACTION , "MALLOC"},
{ACTION_MAX , "ACTION_MAX"},
};
/*内存链的配置*/
struct memControlBlock globalMemCtl[] =
{
{ BLOCK_64 , 1000, 64 , 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
{ BLOCK_128 , 1000, 128 , 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
{ BLOCK_256 , 1000, 256 , 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
{ BLOCK_512 , 1000, 512 , 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
{ BLOCK_1024, 1000, 1024, 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
{ BLOCK_2048, 1000, 2048, 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
{ BLOCK_4096, 1000, 4096, 0, 0, 1000, 0, 0, 1000, 0, 0, NULL, NULL, NULL, NULL ,(unsigned int *)NULL},
};
/*记录每个内存块的操作*/
struct memRecordlCtrlBlock globalMemRecord[] =
{
{ BLOCK_64 , 2000, 0, NULL, NULL, NULL },
{ BLOCK_128 , 2000, 0, NULL, NULL, NULL },
{ BLOCK_256 , 2000, 0, NULL, NULL, NULL },
{ BLOCK_512 , 2000, 0, NULL, NULL, NULL },
{ BLOCK_1024, 2000, 0, NULL, NULL, NULL },
{ BLOCK_2048, 2000, 0, NULL, NULL, NULL },
{ BLOCK_4096, 2000, 0, NULL, NULL, NULL },
{ BLOCK_MAX , 2000, 0, NULL, NULL, NULL },/*记录内存操作的异常情况*/
};
/*记录未释放的内存链*/
struct memLeakRecordCtrlBlock globalMemLeakRecord[]=
{
{ BLOCK_64 , 1000, 0, NULL, NULL, NULL },
{ BLOCK_128 , 1000, 0, NULL, NULL, NULL },
{ BLOCK_256 , 1000, 0, NULL, NULL, NULL },
{ BLOCK_512 , 1000, 0, NULL, NULL, NULL },
{ BLOCK_1024, 1000, 0, NULL, NULL, NULL },
{ BLOCK_2048, 1000, 0, NULL, NULL, NULL },
{ BLOCK_4096, 1000, 0, NULL, NULL, NULL },
};
void *beginAddr = NULL;
void *beginRecordAddr = NULL;
void *beginLeakRecordAddr = NULL;
unsigned int memInstallFlag=UNINSTALL;
unsigned int memRecordInstallFlag=UNINSTALL;
unsigned int memLeakRecordInstallFlag=UNINSTALL;
MEM_LOCK_DEFINE;
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 用于设置位的值
*/
int BitMap_SetBit(unsigned int* bitAddr, unsigned int index)
{
unsigned int _index = index / sizeof(unsigned int*);
unsigned int _pos = index % sizeof(unsigned int*);
if (NULL == bitAddr)
{
return MEM_ERR;
}
bitAddr[_index] = (1<<_pos);
return MEM_OK;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
*用于获取位的值
*/
int BitMap_GetBitValue(unsigned int* bitAddr, unsigned int index)
{
unsigned int _index = index / sizeof(unsigned int*);
unsigned int _pos = index % sizeof(unsigned int*);
if (NULL == bitAddr)
{
return MEM_ERR;
}
if((bitAddr[_index] & (1<<_pos)) == 0 )
{
return 0;
}
else
{
return 1;
}
}
unsigned long countMemCheckSum(struct memBlock * checkMemBlock)
{
unsigned long checkSum=0;
checkSum = (unsigned long)checkMemBlock->index
& (unsigned long)checkMemBlock->length
& (unsigned long)checkMemBlock->partition
& (unsigned long)checkMemBlock->pMemory
& (unsigned long)checkMemBlock->pNext
& (unsigned long)checkMemBlock->state
& (unsigned long)checkMemBlock->taskId;
return checkSum;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 内存池初始化
*
*/
int SYS_MemSetup(void)
{
unsigned int partitionIndex = 0;
unsigned int blockIndex = 0;
unsigned int totalSize = 0;
unsigned int memBlockSize = sizeof(struct memBlock);
struct memBlock *tempMemBlock = NULL;
char *tempAddr = NULL;
MEM_LOCK_INIT();
if(memInstallFlag == ALREADY_INSTALL )
{
return ALREADY_INSTALL;
}
for (partitionIndex = 0; partitionIndex < BLOCK_MAX; partitionIndex++)
{
globalMemCtl[partitionIndex].totalSize = (globalMemCtl[partitionIndex].size + memBlockSize) * globalMemCtl[partitionIndex].totalBlocks;
totalSize += globalMemCtl[partitionIndex].totalSize;
}
if (totalSize != 0)
{
beginAddr = malloc(totalSize);
if (beginAddr == NULL )
{
return SETUP_ERR;
}
memset(beginAddr, 0XAA, totalSize);
tempAddr = beginAddr;
}
/* 每段链的内存空间 >= starArea,< endArea */
for (partitionIndex = 0; partitionIndex < BLOCK_MAX; partitionIndex++)
{
globalMemCtl[partitionIndex].startArea = tempAddr;
globalMemCtl[partitionIndex].endArea = tempAddr + globalMemCtl[partitionIndex].totalSize;
globalMemCtl[partitionIndex].pHead = (struct memBlock*) tempAddr;
for (blockIndex = 0; blockIndex < globalMemCtl[partitionIndex].totalBlocks; blockIndex++)
{
tempMemBlock = (struct memBlock*) tempAddr;
tempMemBlock->pMemory =tempAddr+memBlockSize;
tempMemBlock->length = 0;
tempMemBlock->state = INIT_STATE;
tempMemBlock->partition =partitionIndex;
tempMemBlock->index = blockIndex;
tempMemBlock->taskId = 0;
tempAddr = (tempAddr + globalMemCtl[partitionIndex].size + memBlockSize);
tempMemBlock->pNext = (struct memBlock*)tempAddr;
}
tempMemBlock->pNext = NULL;
globalMemCtl[partitionIndex].pTail = tempMemBlock;
/*分配一段内存用来保留每个内存块的状态0为正常，1为异常*/
globalMemCtl[partitionIndex].pBlockState = malloc(globalMemCtl[partitionIndex].totalSize / sizeof(globalMemCtl[partitionIndex].pBlockState));
if(globalMemCtl[partitionIndex].pBlockState == NULL)
{
free(beginAddr);
return SETUP_ERR;
}
}
memInstallFlag=ALREADY_INSTALL;
return MEM_OK;
}
int SYS_MemDestory(void)
{
if(memInstallFlag==ALREADY_INSTALL)
{
free(beginAddr);
memInstallFlag=UNINSTALL;
}
return MEM_OK;
}
int SYS_MemRecordInit(struct memRecordlCtrlBlock* pMemRecordConfig)
{
unsigned int totalSize = 0;
unsigned int memRecordSize = sizeof(struct memRecord);
char *tempAddr = NULL;
if(pMemRecordConfig==NULL)
{
return CONFIG_ERR;
}
if(memRecordInstallFlag == ALREADY_INSTALL )
{
return ALREADY_INSTALL;
}
totalSize=pMemRecordConfig->totalBlocks * memRecordSize;
if (totalSize != 0)
{
beginRecordAddr = malloc(totalSize);
if (beginRecordAddr == NULL )
{
return SETUP_ERR;
}
memset(beginRecordAddr, 0XBB, totalSize);
tempAddr = beginRecordAddr;
}
pMemRecordConfig->pHead = (struct memRecord*) tempAddr;
pMemRecordConfig->pCurrent = (struct memRecord*) tempAddr;
tempAddr += pMemRecordConfig->totalBlocks * memRecordSize;
pMemRecordConfig->pTail = (struct memRecord*) (tempAddr) - 1;
memRecordInstallFlag = ALREADY_INSTALL;
return MEM_OK;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 内存记录模块初始化
*
*
*/
int SYS_MemRecordSetup(void)
{
unsigned int partitionIndex = 0;
unsigned int totalSize = 0;
unsigned int memRecordSize = sizeof(struct memRecord);
char *tempAddr = NULL;
if(memRecordInstallFlag == ALREADY_INSTALL )
{
return ALREADY_INSTALL;
}
for (partitionIndex = 0; partitionIndex <= BLOCK_MAX; partitionIndex++)
{
totalSize += globalMemRecord[partitionIndex].totalBlocks * memRecordSize;
}
if (totalSize != 0)
{
beginRecordAddr = malloc(totalSize);
if (beginRecordAddr == NULL )
{
return SETUP_ERR;
}
memset(beginRecordAddr, 0XBB, totalSize);
tempAddr = beginRecordAddr;
}
/* 记录采用环形队列*/
for (partitionIndex = 0; partitionIndex <= BLOCK_MAX; partitionIndex++)
{
globalMemRecord[partitionIndex].pHead = (struct memRecord*) tempAddr;
globalMemRecord[partitionIndex].pCurrent = (struct memRecord*) tempAddr;
tempAddr += globalMemRecord[partitionIndex].totalBlocks * memRecordSize;
globalMemRecord[partitionIndex].pTail = (struct memRecord*) (tempAddr) - 1;
}
memRecordInstallFlag = ALREADY_INSTALL;
return MEM_OK;
}
int SYS_MemRecordDestory()
{
if(memRecordInstallFlag == ALREADY_INSTALL)
{
free(beginRecordAddr);
memRecordInstallFlag = UNINSTALL;
}
return MEM_OK;
}
int SYS_MemLeakRecordSetup()
{
unsigned int partitionIndex = 0;
unsigned int totalSize = 0;
unsigned int memRecordSize = sizeof(struct memLeakRecord);
char *tempAddr = NULL;
if(memLeakRecordInstallFlag == ALREADY_INSTALL )
{
return ALREADY_INSTALL;
}
for (partitionIndex = 0; partitionIndex < BLOCK_MAX; partitionIndex++)
{
totalSize += globalMemLeakRecord[partitionIndex].totalBlocks * memRecordSize;
}
if (totalSize != 0)
{
beginLeakRecordAddr = malloc(totalSize);
if (beginLeakRecordAddr == NULL )
{
return SETUP_ERR;
}
memset(beginLeakRecordAddr, 0X00, totalSize);
tempAddr = beginLeakRecordAddr;
}
for (partitionIndex = 0; partitionIndex < BLOCK_MAX; partitionIndex++)
{
globalMemLeakRecord[partitionIndex].pStart = (struct memRecord*) tempAddr;
tempAddr += globalMemLeakRecord[partitionIndex].totalBlocks * memRecordSize;
}
memLeakRecordInstallFlag = ALREADY_INSTALL;
return MEM_OK;
}
int SYS_MemLeakRecordDestory()
{
if(memLeakRecordInstallFlag == ALREADY_INSTALL)
{
free(beginLeakRecordAddr);
memLeakRecordInstallFlag = UNINSTALL;
}
return MEM_OK;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 内存系统初始化
*
*/
void SYS_MemInit(void)
{
SYS_MemSetup();
SYS_MemRecordSetup();
SYS_MemLeakRecordSetup();
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 获取内存链下标
*
*/
int getIndex(unsigned int size)
{
int index=0;
for(index=0;index<BLOCK_MAX;index++)
{
if(size <= globalMemCtl[index].size)
{
return index;
}
}
return BLOCK_MAX;
}
#define RECORD_MEM_START(taskId,fileName,funName,codeLine)\
TASK_ID_TYPE _taskId= taskId;\
char * _fileName = fileName;\
char * _funName = funName;\
unsigned _codeLine = codeLine;\
int _fileNameLength = strlen(fileName);\
int _funNameLength = strlen(funName);\
time_t timeNow = time(NULL);\
if(_fileNameLength >= FILE_NAME_LENGTH)\
{\
_fileNameLength=FILE_NAME_LENGTH-1;\
}\
if(_funNameLength >= FUNCTION_NAME_LENGTH)\
{\
_funNameLength=FUNCTION_NAME_LENGTH-1;\
}
/*记录正常操作的宏，包括动作，动作结果状态，任务id,操作内存，代码行号，代码文件名，代码文件名长度，代码函数名，代码函数名长度*/
#define RECORD_MEM(_action,_actMem,index,_state)\
{\
if(memRecordInstallFlag == ALREADY_INSTALL)\
{\
globalMemRecord[index].pCurrent->action = _action;\
globalMemRecord[index].pCurrent->state = _state;\
globalMemRecord[index].pCurrent->taskId = _taskId;\
globalMemRecord[index].pCurrent->pMemBlock = _actMem;\
globalMemRecord[index].pCurrent->line = _codeLine;\
/* globalMemRecord[index].pCurrent->index = _actMem->index;*/\
memset(globalMemRecord[index].pCurrent->file,0,FILE_NAME_LENGTH);\
memset(globalMemRecord[index].pCurrent->function,0,FUNCTION_NAME_LENGTH);\
memcpy(globalMemRecord[index].pCurrent->file,_fileName,_fileNameLength);\
memcpy(globalMemRecord[index].pCurrent->function,_funName,_funNameLength);\
globalMemRecord[index].recordnum++;\
globalMemRecord[index].pCurrent=&(globalMemRecord[index].pHead[globalMemRecord[index].recordnum % globalMemRecord[index].totalBlocks]);\
}\
}
/*记录正常操作异常情况的宏*/
#define RECORD_MEM_ERR(_action,_actMem,_state,_errcode)\
{\
if(memRecordInstallFlag == ALREADY_INSTALL)\
{\
globalMemRecord[BLOCK_MAX].pCurrent->action = _action;\
globalMemRecord[BLOCK_MAX].pCurrent->state = _state;\
globalMemRecord[BLOCK_MAX].pCurrent->errcode = _errcode;\
globalMemRecord[BLOCK_MAX].pCurrent->taskId = _taskId;\
globalMemRecord[BLOCK_MAX].pCurrent->pMemBlock = _actMem;\
globalMemRecord[BLOCK_MAX].pCurrent->line = _codeLine;\
/*globalMemRecord[BLOCK_MAX].pCurrent->index = _actMem->index;*/\
memset(globalMemRecord[BLOCK_MAX].pCurrent->file,0,FILE_NAME_LENGTH);\
memset(globalMemRecord[BLOCK_MAX].pCurrent->function,0,FUNCTION_NAME_LENGTH);\
memcpy(globalMemRecord[BLOCK_MAX].pCurrent->file,_fileName,_fileNameLength);\
memcpy(globalMemRecord[BLOCK_MAX].pCurrent->function,_funName,_funNameLength);\
globalMemRecord[BLOCK_MAX].recordnum++;\
globalMemRecord[BLOCK_MAX].pCurrent=&(globalMemRecord[BLOCK_MAX].pHead[globalMemRecord[BLOCK_MAX].recordnum % globalMemRecord[BLOCK_MAX].totalBlocks]);\
}\
}
#define RECORD_MEM_LEAK_ADD(_actMem,_index)\
{\
if(memRecordInstallFlag == ALREADY_INSTALL)\
{\
if(globalMemLeakRecord[_index].pHead==NULL)\
{\
globalMemLeakRecord[_index].pHead=&globalMemLeakRecord[_index].pStart[_actMem->index]; \
globalMemLeakRecord[_index].pHead->pPrev=NULL;\
}\
else\
{\
globalMemLeakRecord[_index].pTail->pNext=&globalMemLeakRecord[_index].pStart[_actMem->index];\
globalMemLeakRecord[_index].pStart[_actMem->index].pPrev=globalMemLeakRecord[_index].pTail;\
}\
globalMemLeakRecord[_index].pTail=&globalMemLeakRecord[_index].pStart[_actMem->index]; \
globalMemLeakRecord[_index].pTail->pNext=NULL;\
memset(globalMemLeakRecord[_index].pStart[_actMem->index].file,0,FILE_NAME_LENGTH);\
memset(globalMemLeakRecord[_index].pStart[_actMem->index].function,0,FUNCTION_NAME_LENGTH);\
memcpy(globalMemLeakRecord[_index].pStart[_actMem->index].file,_fileName,_fileNameLength);\
memcpy(globalMemLeakRecord[_index].pStart[_actMem->index].function,_funName,_funNameLength);\
globalMemLeakRecord[_index].pStart[_actMem->index].timeNow = timeNow;\
globalMemLeakRecord[_index].pStart[_actMem->index].line=codeLine;\
globalMemLeakRecord[_index].pStart[_actMem->index].taskId=_taskId;\
globalMemLeakRecord[_index].pStart[_actMem->index].pMemBlock=_actMem;\
globalMemLeakRecord[_index].recordnum++;\
}\
}
#define RECORD_MEM_LEAK_DEL(_actMem,_index)\
{\
if(memRecordInstallFlag == ALREADY_INSTALL)\
{\
struct memLeakRecord * pTemp=&globalMemLeakRecord[_index].pStart[freeMem->index];\
if(pTemp->pPrev!=NULL && pTemp->pNext!=NULL)\
{\
pTemp->pPrev->pNext=pTemp->pNext;\
pTemp->pNext->pPrev=pTemp->pPrev;\
}\
if(pTemp->pPrev!=NULL && pTemp->pNext==NULL)\
{\
pTemp->pPrev->pNext=NULL;\
globalMemLeakRecord[_index].pTail=pTemp->pPrev;\
}\
if(pTemp->pPrev==NULL && pTemp->pNext!=NULL)\
{\
pTemp->pNext->pPrev=NULL;\
globalMemLeakRecord[_index].pHead=pTemp->pNext;\
}\
if(pTemp->pPrev==NULL && pTemp->pNext==NULL)\
{\
globalMemLeakRecord[_index].pHead=NULL;\
globalMemLeakRecord[_index].pTail=NULL;\
}\
memset(pTemp,0,sizeof(struct memLeakRecord));\
globalMemLeakRecord[_index].recordnum--;\
}\
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
* 对于vxworks系统，只能在任务上下文中调用
*
*
*/
void * SYS_MemAllocate(unsigned int size,char * fileName, char* funName,unsigned int codeLine)
{
int index = getIndex(size);
struct memBlock *returnMem = NULL;
unsigned long memBlockSize = sizeof(struct memBlock);
TASK_ID_TYPE taskId= TASK_ID_SELF();
RECORD_MEM_START(taskId,fileName,funName,codeLine);
MEM_LOCK_START();
if(index >= BLOCK_MAX)
{
MEM_DEBUG("can't alloc mem ,because the szie %d is to big\n",size,0,0,0,0,0);
RECORD_MEM_ERR(MALLOC_ACTION,returnMem,size,SIZE_TOO_BIG);
return NULL;
}
MEM_LOCK();
while (globalMemCtl[index].freeBlocks == 0)
{
index++;
if(index >= BLOCK_MAX)
{
MEM_DEBUG("1 don't have any memory left\n",0,0,0,0,0,0);
RECORD_MEM_ERR(MALLOC_ACTION,returnMem,STATE_MAX,NO_ENOUGH_MEMORY);
MEM_UNLOCK();
return NULL;
}
}
/*从头部取出内存*/
if (globalMemCtl[index].pHead!=NULL)
{
returnMem = globalMemCtl[index].pHead;
}
else
{
MEM_DEBUG("2 Can't return in this point,The system maybe wrong,globalMemCtl[%d].pHead ==NULL\n",index,0,0,0,0,0);
RECORD_MEM_ERR(MALLOC_ACTION,returnMem,STATE_MAX,IMPOSSIBLE_ERR);
MEM_UNLOCK();
return NULL;
}
if(returnMem->state == INIT_STATE
|| returnMem->state == FREE_STATE
&& returnMem->partition == index
&& (unsigned long)returnMem->pMemory == (unsigned long)returnMem + memBlockSize
&& returnMem->index == ((unsigned long)returnMem - (unsigned long)globalMemCtl[index].startArea ) /(globalMemCtl[index].size + memBlockSize)
)
{
if(globalMemCtl[index].pHead->pNext == NULL)
{
globalMemCtl[index].pTail=NULL;
}
globalMemCtl[index].pHead = globalMemCtl[index].pHead->pNext;
if(returnMem->state == INIT_STATE)
{
globalMemCtl[index].unUsedBlocks--;
}
globalMemCtl[index].freeBlocks--;
globalMemCtl[index].usedBlocks++;
globalMemCtl[index].usedTimes++;
returnMem->state = MALLOC_STATE;
returnMem->taskId = taskId;
returnMem->pNext = NULL;
returnMem->length = size;
returnMem->checkSum=countMemCheckSum(returnMem);
}
else
{
RECORD_MEM_ERR(MALLOC_ACTION,returnMem,returnMem->state,MEM_BLOCK_ERR);
if(globalMemCtl[index].pHead->pNext == NULL)
{
globalMemCtl[index].pTail=NULL;
}
globalMemCtl[index].pHead = globalMemCtl[index].pHead->pNext;
globalMemCtl[index].freeBlocks--;
globalMemCtl[index].badBlocks++;
/*returnMem->state = BAD_STATE;*/
MEM_UNLOCK();
return NULL;
}
RECORD_MEM(MALLOC_ACTION,returnMem,index,MALLOC_STATE);
RECORD_MEM_LEAK_ADD(returnMem,index);
MEM_UNLOCK();
return returnMem->pMemory;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 内存释放函数
*
*/
void SYS_MemFree(void *addr,char * fileName, char* funName,unsigned int codeLine)
{
int index=0;
int indexInBlock=0;
struct memBlock *freeMem = NULL;
unsigned long memBlockSize = sizeof(struct memBlock);
TASK_ID_TYPE taskId= TASK_ID_SELF();
RECORD_MEM_START(taskId,fileName,funName,codeLine);
MEM_LOCK_START();
/*如果地址不在内存池空间中，记录相关的异常*/
if(addr < globalMemCtl[0].startArea+sizeof(struct memBlock) || addr >= globalMemCtl[BLOCK_MAX-1].endArea)
{
MEM_DEBUG("5 The release mem %p is not in mem pool，start: 0X%p, end: %p\n",addr,globalMemCtl[0].startArea,globalMemCtl[BLOCK_MAX-1].endArea,0,0,0);
RECORD_MEM_ERR(FREE_ACTION,freeMem,STATE_MAX,NOT_RIGHT_REGION_MEMORY);
return;
}
freeMem=(struct memBlock*)((char*)addr - sizeof(struct memBlock));
MEM_LOCK();
if(freeMem->checkSum != countMemCheckSum(freeMem))
{
RECORD_MEM_ERR(FREE_ACTION,freeMem,STATE_MAX,CHECK_SUM_ERR);
MEM_UNLOCK();
return;
}
index=freeMem->partition;
if(index >= BLOCK_MAX)
{
for(index=0;index<BLOCK_MAX;index++)
{
if(freeMem < globalMemCtl[index].endArea)
{
break;
}
}
/*BitMap_SetBit(globalMemCtl[index].badBlocks,);*/
freeMem->state=BAD_STATE;
globalMemCtl[index].badBlocks++;
RECORD_MEM_ERR(FREE_ACTION,freeMem,STATE_MAX,CTRL_BLOCK_BREAK);
MEM_UNLOCK();
return;
}
if(freeMem->state == MALLOC_STATE
&& freeMem->pNext == NULL
&& (unsigned long)freeMem->pMemory == (unsigned long)freeMem + memBlockSize
&& (unsigned long)freeMem->pMemory == addr
&& freeMem->length <= globalMemCtl[index].size
&& freeMem->index == ((unsigned long)freeMem - (unsigned long)globalMemCtl[index].startArea ) /(globalMemCtl[index].size + memBlockSize)
)
{
/*将释放的内存添加到链尾*/
freeMem->taskId=0;
freeMem->length=0;
freeMem->pNext=NULL;
freeMem->state = FREE_STATE;
globalMemCtl[index].freeBlocks++;
globalMemCtl[index].usedBlocks--;
globalMemCtl[index].freeTimes++;
if(globalMemCtl[index].pTail==NULL)
{
globalMemCtl[index].pHead=freeMem;
globalMemCtl[index].pTail = freeMem;
}
else
{
globalMemCtl[index].pTail->pNext=freeMem;
globalMemCtl[index].pTail = freeMem;
}
RECORD_MEM(FREE_ACTION,freeMem,index,FREE_STATE);
RECORD_MEM_LEAK_DEL(freeMem,index);
MEM_UNLOCK();
return;
}
/*校验内存头部控制块*/
/*检查内存是否在正确的内存链上*/
if(addr < globalMemCtl[index].startArea || addr >= globalMemCtl[index].endArea)
{
/*由于此内存的控制块数据出错，这里只做标识不做内存块记录*/
MEM_DEBUG("6 the release mem %p is not in right mem chain，start: 0X%p, end: 0X%p\n",addr,globalMemCtl[index].startArea,globalMemCtl[index].endArea,0,0,0);
freeMem->state = BAD_STATE;
RECORD_MEM_ERR(FREE_ACTION,freeMem,STATE_MAX,MEM_REGION_CONFLICT);
MEM_UNLOCK();
return;
}
else
{
/*内存记录的分配长度大于内存所在链的长度*/
if(freeMem->length > globalMemCtl[index].size)
{
MEM_DEBUG("the free mem %p legth %d is bigger than size %d\n",freeMem,freeMem->length,globalMemCtl[index].size,0,0,0);
freeMem->state = BAD_STATE;
globalMemCtl[index].badBlocks++;
RECORD_MEM_ERR(FREE_ACTION,freeMem,STATE_MAX,CONTROL_BLOCK_LENGTH_ERR);
/* RECORD_MEM(FREE_ACTION,freeMem,BAD_STATE);*/
MEM_UNLOCK();
return;
}
}
switch(freeMem->state)
{
case INIT_STATE:
MEM_DEBUG("7 Init mem block %p ,0X%X ,Can't be released\n",freeMem,freeMem->state,0,0,0,0);
globalMemCtl[index].reReleaseBlocks++;
RECORD_MEM_ERR(FREE_ACTION,freeMem,INIT_STATE,REMALLOC_STATE);
case FREE_STATE:
MEM_DEBUG("8 Free mem block %p , 0X%X ,Can't be released\n",freeMem,freeMem->state,0,0,0,0);
globalMemCtl[index].reReleaseBlocks++;
RECORD_MEM_ERR(FREE_ACTION,freeMem,FREE_STATE,REMALLOC_STATE);
default:
MEM_DEBUG("9 The mem %p state 0X%X is not right\n",freeMem,freeMem->state,0,0,0,0);
RECORD_MEM_ERR(FREE_ACTION,freeMem,freeMem->state,STATE_NOT_EXCEPT);
globalMemCtl[index].badBlocks++;
freeMem->state = BAD_STATE;
}
MEM_UNLOCK();
return;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 显示所有内存块信息
*
*/
void showMemAll()
{
int blcokInex=0;
printf("block size blockNum startArea endArea used free bad unused rerelease usedTimes freeTimes\n");
for(blcokInex = 0; blcokInex < sizeof(globalMemCtl) / sizeof(struct memControlBlock); blcokInex++)
{
printf("%-7d%-7d%-10d%16p %-16p %-8d%-8d%-8d%-8d%-12d%-12u%-12u\n",
blcokInex,
globalMemCtl[blcokInex].size,
globalMemCtl[blcokInex].totalBlocks,
globalMemCtl[blcokInex].startArea,
globalMemCtl[blcokInex].endArea,
globalMemCtl[blcokInex].usedBlocks,
globalMemCtl[blcokInex].freeBlocks,
globalMemCtl[blcokInex].badBlocks,
globalMemCtl[blcokInex].unUsedBlocks,
globalMemCtl[blcokInex].reReleaseBlocks,
globalMemCtl[blcokInex].usedTimes,
globalMemCtl[blcokInex].freeTimes);
}
return;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 显示单个内存块信息
*
*/
void showMem(unsigned int blcokInex)
{
if(blcokInex>BLOCK_MAX)
{
printf("input blockNum %d is err\n",blcokInex);
return;
}
printf("block size blockNum startArea endArea used free bad unused rerelease usedTimes freeTimes\n");
printf("%-7d%-7d%-10d%p %p %-8d%-8d%-8d%-8d%-12d%-12u%-12u\n",
blcokInex,
globalMemCtl[blcokInex].size,
globalMemCtl[blcokInex].totalBlocks,
globalMemCtl[blcokInex].startArea,
globalMemCtl[blcokInex].endArea,
globalMemCtl[blcokInex].usedBlocks,
globalMemCtl[blcokInex].freeBlocks,
globalMemCtl[blcokInex].badBlocks,
globalMemCtl[blcokInex].unUsedBlocks,
globalMemCtl[blcokInex].reReleaseBlocks,
globalMemCtl[blcokInex].usedTimes,
globalMemCtl[blcokInex].freeTimes);
return;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 显示内存记录信息
*
*/
unsigned int showMemRecord(unsigned int blcokInex,unsigned int num)
{
int index=0;
struct memRecord *tempRecord=NULL;
memRecordInstallFlag=IN_SHOW_STATUS;
if(blcokInex>BLOCK_MAX)
{
printf("input blockNum %d is err\n",blcokInex);
return;
}
if(num > globalMemRecord[blcokInex].totalBlocks)
{
printf("num %d is bigger than the size of record %d \n",num,globalMemRecord[blcokInex].totalBlocks);
num = globalMemRecord[blcokInex].totalBlocks;
}
if(num > globalMemRecord[blcokInex].recordnum)
{
num= globalMemRecord[blcokInex].recordnum;
}
if(globalMemRecord[index].recordnum > globalMemRecord[blcokInex].totalBlocks)
{
tempRecord=globalMemRecord[blcokInex].pCurrent++;
}
else
{
tempRecord=globalMemRecord[blcokInex].pHead;
}
printf("block:%d ,totalBlocks:%d ,recordNum:%d\n",blcokInex,globalMemRecord[blcokInex].totalBlocks,globalMemRecord[blcokInex].recordnum);
printf("record:\n");
printf("pHead:%p,pTail:%p,pCurrent:%p\n",
globalMemRecord[blcokInex].pHead,
globalMemRecord[blcokInex].pTail,
globalMemRecord[blcokInex].pCurrent
);
for(index=0;index<num;index++)
{
printf("action:%-12s,state:%-10s,mem:%p,taskId:0x%x,file:%s,function:%s,line:%d\n",
globalMemActionStr[tempRecord->action].str,
globalMemStateStr[tempRecord->state].str,
tempRecord->pMemBlock,
/*tempRecord->index,*/
tempRecord->taskId,
tempRecord->file,
tempRecord->function,
tempRecord->line);
tempRecord++;
if(tempRecord > globalMemRecord[blcokInex].pTail)
{
tempRecord=globalMemRecord[blcokInex].pHead;
}
}
memRecordInstallFlag = ALREADY_INSTALL;
return num;
}
/*
* author xd
*
* To change this generated comment edit the template variable "comment":
* Window > Preferences > C/C++ > Editor > Templates.
*
* 显示错误内存记录
*
*/
unsigned int showMemErrRecord(unsigned int num)
{
int index=0;
struct memRecord *tempRecord=NULL;
memRecordInstallFlag = IN_SHOW_STATUS;
if(num > globalMemRecord[BLOCK_MAX].totalBlocks)
{
printf("num %d is bigger than the size of record %d \n",num,globalMemRecord[BLOCK_MAX].totalBlocks);
num = globalMemRecord[BLOCK_MAX].totalBlocks;
}
if(num > globalMemRecord[BLOCK_MAX].recordnum)
{