将值分配给字符串向量时出现cygwin异常
cygwin exception when assigning value to vector of strings
我在 运行 程序的过程中遇到以下异常：
0 [main] myFunction 5560 cygwin_exception::open_stackdumpfile: Dumping stack trace to myFunction.exe.stackdump
stackdump文件内容如下：
Stack trace:
Frame Function Args
00000223800 0018006FB93 (0060007AE38, 00600083EC8, 00600083EF8, 00600083F28)
00000000006 0018007105A (0060007BB78, 00600000000, 0000000014C, 00000000000)
000002239E0 0018011C6A7 (00600083048, 00600083078, 006000830A8, 006000830D8)
00000000041 001801198DE (0060007DCB8, 0060007DCE8, 00000000000, 0060007DD48)
0060008F2B0 00180119DAB (0060007E1F8, 0060007E228, 0060007E258, 00000000006)
0060008F2B0 00180119F7C (0060007CB38, 0060007CB68, 0060007CB98, 0060007CBC8)
0060008F2B0 0018011A23F (00180115A0B, 0060007CCE8, 006000885B0, 00000000000)
0060008F2B0 00180148A65 (003FC4AA93D, 00600083900, 00100439102, 0060007B080)
0060008F2B0 001800C1DB3 (00000000000, 00000223EE0, 0010042A2BC, 00000223E90)
0060008F2B0 00180115A0B (00000223EE0, 0010042A2BC, 00000223E90, 00000000017)
0060008F2B0 00600000001 (00000223EE0, 0010042A2BC, 00000223E90, 00000000017)
End of stack trace
让我详细描述一下运行时间发生的特殊问题。我无法仅用文字描述问题，所以我列出了程序运行时和运行失败时的情况。
我在我的头文件中创建了一个字符串向量，并在构造函数中将它们初始化如下：
std::vector <std::string> symbolMap,localSymbolMap;
for(int i=0;i<100;i++){
symbolMap.push_back(" ");
localSymbolMap.push_back(" ");
}
我在程序的后面定义了一个函数来为这些变量分配适当的值，如下所示：
void TestClient::setTickerMap(int j, std::string symbol, std::string localSymbol){
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
现在，在主程序中，我调用这个函数如下：
TestClient client;
for(int j=0;j<27;j++){
std::cout<<j<<" "<<realTimeSymbols[j]<<" "<<getLocalSymbol(realTimeSymbols[j],date)<<std::endl;
client.setTickerMap(j,realTimeSymbols[j],getLocalSymbol(realTimeSymbols[j],date));
}
// 在这里，我检查了每个 j，realTimeSymbols 和 getLocalSymbol 的值是否正确。
当我运行程序时，出现上述错误。当 j 等于 24 时，程序总是崩溃。
现在，以下解决方法正在发挥作用：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
// symbolMap[j]="SYNDIBANK";
// localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
if(j==1){
symbolMap[24]="SYNDIBANK";
localSymbolMap[24]="SYNDIBANK15MARFUT";
}
}
以上代码的以下 3 个变体不起作用，它们导致了原始错误：
变体 1：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
// symbolMap[j]="SYNDIBANK";
// localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
if(j==25){
symbolMap[24]="SYNDIBANK";
localSymbolMap[24]="SYNDIBANK15MARFUT";
}
}
变体 2：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
symbolMap[j]="SYNDIBANK";
localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
}
变体 3：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
symbolMap[j]="AB";
localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
}
现在，如果我将单个字符分配给变体 3 中的 symbolMap，如下所示：
symbolMap[j]="A";
那么代码就可以运行（虽然是结果不正确）
我无法弄清楚是什么导致了这个 运行时间错误。我检查了相关问题 (Cygwin Exception : open stack dump file)，我没有单独的 cygwin 会话 运行ning。我已经重新启动了我的电脑，只是为了更加确定。问题仍然存在。关于为什么在我的 PC 上看到此行为的任何建议。
更新：
为确保错误与超出索引无关，主程序的以下调用工作正常：
TestClient client;
for(int j=25;j<27;j++){
std::cout<<j<<" "<<realTimeSymbols[j]<<" "<<getLocalSymbol(realTimeSymbols[j],date)<<std::endl;
client.setTickerMap(j,realTimeSymbols[j],getLocalSymbol(realTimeSymbols[j],date));
}
当j从24迭代到27时，程序也能正常工作。但是当循环从24之前的任何数字迭代到27时，程序就会失败。
GDB 输出
我对 gdb 没有太多经验，但如果有帮助，以下是 gdb 的输出：
GNU gdb (GDB) 7.8
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from order_trading2632_limit.exe...done.
(gdb) run
Starting program: /cygdrive/e/eclipse_workspace/testClient/Debug/testClient.exe
[New Thread 4832.0x11e4]
[New Thread 4832.0x1798]
Attempt 1 of 10000
[New Thread 4832.0x1020]
Connection successful
Program received signal SIGABRT, Aborted.
0x00000003fc4ab0e3 in cygstdc++-6!_ZNSs6assignERKSs () from /usr/bin/cygstdc++-6.dll
(gdb) bt
#0 0x00000003fc4ab0e3 in cygstdc++-6!_ZNSs6assignERKSs () from /usr/bin/cygstdc++-6.dll
#1 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) set $pc=*(void **)$rsp
(gdb) set $rsp=$rsp+8
(gdb) bt
#0 0x000007fefd3110ac in WaitForSingleObjectEx () from /cygdrive/c/Windows/system32/KERNELBASE.dll
#1 0x000000018011c639 in sig_send(_pinfo*, siginfo_t&, _cygtls*) () from /usr/bin/cygwin1.dll
#2 0x00000001801198de in _pinfo::kill(siginfo_t&) () from /usr/bin/cygwin1.dll
#3 0x0000000180119dab in kill0(int, siginfo_t&) () from /usr/bin/cygwin1.dll
#4 0x0000000180119f7c in raise () from /usr/bin/cygwin1.dll
#5 0x000000018011a23f in abort () from /usr/bin/cygwin1.dll
#6 0x0000000180148a65 in dlfree () from /usr/bin/cygwin1.dll
#7 0x00000001800c1db3 in free () from /usr/bin/cygwin1.dll
#8 0x0000000180115a0b in _sigfe () from /usr/bin/cygwin1.dll
#9 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
请注意，堆栈跟踪已损坏，我使用了以下问题中的技巧来打印堆栈跟踪 (GDB corrupted stack frame - How to debug?)。请帮助我进一步调试程序。
更新
并非只有index为24时才出现错误。在调用上述循环之前，我初始化了int、double和string等各种数组。发生此错误时，更改初始化次数会影响索引。今天，我在 运行 循环之前初始化了长度为 24 的向量，这次错误发生在索引 3 处。
实施解决方法确实令人沮丧。我不认为是否因此而忽略了其他一些内存问题。请提出建议。
代码
int main(int argc, char** argv) {
unsigned int port = 7900;
const char* host = "";
int clientId = 6;
int attempt = 0;
int MAX_ATTEMPTS=10000;
int NUMREALTIMESYMBOLS=37;
std::string realTimeSymbolsArr[]={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","aa","bb","cc","dd","ee","ff","gg","hh","ii","jj","kk"};
std::vector <std::string> realTimeSymbols(realTimeSymbolsArr,realTimeSymbolsArr+NUMREALTIMESYMBOLS);
int isTradeable[]={1,0,0,0,1,0,1,1,1,1,1,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1};
int numSubscriptions[]={2,2,1,4,1,1,2,6,3,1,1,1,2,1,3,1,1,2,1,3,1,1,1,10,4,1,6,1,1,9,4,2,1,3,1,1,2};
int subscriptionList[NUMREALTIMESYMBOLS][100];
int subscriptionIndex[NUMREALTIMESYMBOLS][100];
subscriptionList[0][0]=0;subscriptionIndex[0][0]=0;
subscriptionList[0][1]=2;subscriptionIndex[0][1]=2;
subscriptionList[1][0]=2;subscriptionIndex[1][0]=1;
subscriptionList[1][1]=0;subscriptionIndex[1][1]=3;
subscriptionList[2][0]=2;subscriptionIndex[2][0]=0;
subscriptionList[3][0]=4;subscriptionIndex[3][0]=2;
subscriptionList[3][1]=31;subscriptionIndex[3][1]=2;
subscriptionList[3][2]=13;subscriptionIndex[3][2]=3;
subscriptionList[3][3]=34;subscriptionIndex[3][3]=3;
subscriptionList[4][0]=4;subscriptionIndex[4][0]=0;
subscriptionList[5][0]=9;subscriptionIndex[5][0]=2;
subscriptionList[6][0]=6;subscriptionIndex[6][0]=0;
subscriptionList[6][1]=8;subscriptionIndex[6][1]=2;
subscriptionList[7][0]=7;subscriptionIndex[7][0]=0;
subscriptionList[7][1]=8;subscriptionIndex[7][1]=1;
subscriptionList[7][2]=31;subscriptionIndex[7][2]=1;
subscriptionList[7][3]=36;subscriptionIndex[7][3]=1;
subscriptionList[7][4]=13;subscriptionIndex[7][4]=2;
subscriptionList[7][5]=34;subscriptionIndex[7][5]=2;
subscriptionList[8][0]=8;subscriptionIndex[8][0]=0;
subscriptionList[8][1]=7;subscriptionIndex[8][1]=1;
subscriptionList[8][2]=21;subscriptionIndex[8][2]=3;
subscriptionList[9][0]=9;subscriptionIndex[9][0]=0;
subscriptionList[10][0]=10;subscriptionIndex[10][0]=0;
subscriptionList[11][0]=11;subscriptionIndex[11][0]=0;
subscriptionList[12][0]=28;subscriptionIndex[12][0]=3;
subscriptionList[12][1]=33;subscriptionIndex[12][1]=3;
subscriptionList[13][0]=13;subscriptionIndex[13][0]=0;
subscriptionList[14][0]=33;subscriptionIndex[14][0]=1;
subscriptionList[14][1]=28;subscriptionIndex[14][1]=2;
subscriptionList[14][2]=15;subscriptionIndex[14][2]=3;
subscriptionList[15][0]=15;subscriptionIndex[15][0]=0;
subscriptionList[16][0]=16;subscriptionIndex[16][0]=0;
subscriptionList[17][0]=0;subscriptionIndex[17][0]=1;
subscriptionList[17][1]=11;subscriptionIndex[17][1]=2;
subscriptionList[18][0]=7;subscriptionIndex[18][0]=2;
subscriptionList[19][0]=6;subscriptionIndex[19][0]=3;
subscriptionList[19][1]=8;subscriptionIndex[19][1]=3;
subscriptionList[19][2]=16;subscriptionIndex[19][2]=3;
subscriptionList[20][0]=9;subscriptionIndex[20][0]=1;
subscriptionList[21][0]=21;subscriptionIndex[21][0]=0;
subscriptionList[22][0]=9;subscriptionIndex[22][0]=3;
subscriptionList[23][0]=6;subscriptionIndex[23][0]=1;
subscriptionList[23][1]=10;subscriptionIndex[23][1]=1;
subscriptionList[23][2]=27;subscriptionIndex[23][2]=1;
subscriptionList[23][3]=29;subscriptionIndex[23][3]=1;
subscriptionList[23][4]=16;subscriptionIndex[23][4]=2;
subscriptionList[23][5]=21;subscriptionIndex[23][5]=2;
subscriptionList[23][6]=2;subscriptionIndex[23][6]=3;
subscriptionList[23][7]=4;subscriptionIndex[23][7]=3;
subscriptionList[23][8]=7;subscriptionIndex[23][8]=3;
subscriptionList[23][9]=36;subscriptionIndex[23][9]=3;
subscriptionList[24][0]=24;subscriptionIndex[24][0]=0;
subscriptionList[24][1]=24;subscriptionIndex[24][1]=1;
subscriptionList[24][2]=24;subscriptionIndex[24][2]=2;
subscriptionList[24][3]=24;subscriptionIndex[24][3]=3;
subscriptionList[25][0]=29;subscriptionIndex[25][0]=3;
subscriptionList[26][0]=21;subscriptionIndex[26][0]=1;
subscriptionList[26][1]=0;subscriptionIndex[26][1]=2;
subscriptionList[26][2]=10;subscriptionIndex[26][2]=2;
subscriptionList[26][3]=15;subscriptionIndex[26][3]=2;
subscriptionList[26][4]=27;subscriptionIndex[26][4]=2;
subscriptionList[26][5]=33;subscriptionIndex[26][5]=2;
subscriptionList[27][0]=27;subscriptionIndex[27][0]=0;
subscriptionList[28][0]=28;subscriptionIndex[28][0]=0;
subscriptionList[29][0]=29;subscriptionIndex[29][0]=0;
subscriptionList[29][1]=4;subscriptionIndex[29][1]=1;
subscriptionList[29][2]=13;subscriptionIndex[29][2]=1;
subscriptionList[29][3]=16;subscriptionIndex[29][3]=1;
subscriptionList[29][4]=34;subscriptionIndex[29][4]=1;
subscriptionList[29][5]=6;subscriptionIndex[29][5]=2;
subscriptionList[29][6]=36;subscriptionIndex[29][6]=2;
subscriptionList[29][7]=27;subscriptionIndex[29][7]=3;
subscriptionList[29][8]=31;subscriptionIndex[29][8]=3;
subscriptionList[30][0]=30;subscriptionIndex[30][0]=0;
subscriptionList[30][1]=30;subscriptionIndex[30][1]=1;
subscriptionList[30][2]=30;subscriptionIndex[30][2]=2;
subscriptionList[30][3]=30;subscriptionIndex[30][3]=3;
subscriptionList[31][0]=31;subscriptionIndex[31][0]=0;
subscriptionList[31][1]=29;subscriptionIndex[31][1]=2;
subscriptionList[32][0]=11;subscriptionIndex[32][0]=3;
subscriptionList[33][0]=33;subscriptionIndex[33][0]=0;
subscriptionList[33][1]=15;subscriptionIndex[33][1]=1;
subscriptionList[33][2]=28;subscriptionIndex[33][2]=1;
subscriptionList[34][0]=34;subscriptionIndex[34][0]=0;
subscriptionList[35][0]=11;subscriptionIndex[35][0]=1;
subscriptionList[36][0]=36;subscriptionIndex[36][0]=0;
subscriptionList[36][1]=10;subscriptionIndex[36][1]=3;
double a1[]={720,0.0,750,0.0,900,0.0,760,360,120,390,600,360,0.0,760,0.0,140,660,0.0,0.0,0.0,0.0,720,0.0,0.0,100,0.0,0.0,120,320,40,100,500,0.0,630,570,0.0,100};
double a2[]={0.5,0.0,1.3,0.0,0.6,0.0,0.45,0.15,0.45,0.4,0.25,1.4,0.0,0.55,0.0,0.2,0.8,0.0,0.0,0.0,0.0,0.6,0.0,0.0,0.4,0.0,0.0,0.25,0.4,0.25,0.4,0.35,0.0,0.4,0.5,0.0,0.4};
double a3[]={1350,0.0,1250,0.0,300,0.0,1150,1400,900,1200,850,900,0.0,600,0.0,1450,1450,0.0,0.0,0.0,0.0,1000,0.0,0.0,1200,0.0,0.0,1150,350,1400,1200,1350,0.0,1500,300,0.0,1200};
double a4[]={0.6,0.0,0.7,0.0,0.2,0.0,0.3,0.55,0.4,0.8,0.25,0.7,0.0,0.25,0.0,0.55,0.5,0.0,0.0,0.0,0.0,0.4,0.0,0.0,0.7,0.0,0.0,0.65,0.55,0.45,0.7,0.6,0.0,0.4,0.4,0.0,0.7};
double a5[]={300,0.0,1300,0.0,1350,0.0,200,1100,1200,650,1500,1350,0.0,1050,0.0,1300,550,0.0,0.0,0.0,0.0,250,0.0,0.0,150,0.0,0.0,1250,700,1150,150,1250,0.0,1500,1500,0.0,150};
double a6[]={0.3,0.0,0.8,0.0,0.6,0.0,0.5,0.6,0.6,0.3,0.35,0.7,0.0,0.55,0.0,0.45,0.35,0.0,0.0,0.0,0.0,0.3,0.0,0.0,0.5,0.0,0.0,0.55,0.3,0.35,0.5,0.75,0.0,0.2,0.5,0.0,0.5};
double a7[]={1500,0.0,1500,0.0,1050,0.0,750,1100,1350,1350,100,1350,0.0,550,0.0,1400,1000,0.0,0.0,0.0,0.0,1000,0.0,0.0,1350,0.0,0.0,350,550,350,1350,500,0.0,1350,1250,0.0,1350};
double a8[]={0.9,0.0,0.9,0.0,0.8,0.0,0.6,0.35,0.7,0.2,0.15,0.7,0.0,0.3,0.0,0.55,0.5,0.0,0.0,0.0,0.0,0,0.0,0.0,0.3,0.0,0.0,0.4,0.3,0.5,0.3,0.35,0.0,0.5,0.5,0.0,0.3};
double a9[]={0.008,0.0,0.009,0.0,0.01,0.0,0.01,0.009,0.009,0.007,0.009,0.01,0.0,0.009,0.0,0.01,0.008,0.0,0.0,0.0,0.0,0.01,0.0,0.0,0.006,0.0,0.0,0.008,0.009,0.01,0.006,0.009,0.0,0.008,0.009,0.0,0.006};
double a10[]={0.008,0.0,0.009,0.0,0.008,0.0,0.008,0.008,0.009,0.008,0.008,0.006,0.0,0.009,0.0,0.01,0.008,0.0,0.0,0.0,0.0,0.005,0.0,0.0,0.009,0.0,0.0,0.01,0.008,0.009,0.009,0.009,0.0,0.008,0.01,0.0,0.009};
double a11[]={0.4,0.0,0.2,0.0,0.1,0.0,0.3,0.4,0.2,0.1,0.7,0.2,0.0,0,0.0,0.1,0,0.0,0.0,0.0,0.0,0.1,0.0,0.0,0.2,0.0,0.0,0.3,0,0.2,0.2,0,0.0,0.7,0.1,0.0,0.2};
int a12[]={500,1000,8000,2000,4000,1000,1250,1000,1000,500,1000,125,2000,4000,1000,250,2000,250,1000,1250,500,2000,1000,500,0,250,500,4000,4000,1250,0,2000,500,500,4000,125,1000};
double a13[]={0.0013406,0.0020022,0.0018709,0.0018948,0.0017975,0.0014687,0.0011068,0.001355,0.0010891,0.00088151,0.0014294,0.0012989,0.0014205,0.0019711,0.0015365,0.0020505,0.0018961,0.00078672,0.0023114,0.0012203,0.0012849,0.0015674,0.0012844,0.0014197,0.0,0.00074657,0.00096164,0.0017109,0.0015385,0.00068178,0.0,0.0021815,0.00087359,0.00074349,0.0021645,0.001595,0.0014573};
int a14[]={14850,0,16500,0,13740,0,13740,24750,13740,14100,13740,30750,0,14400,0,13740,13740,0,0,0,0,14100,0,0,13500,0,0,13740,13740,25200,13500,13740,0,13740,13740,0,13740};
int a15[]={30750,0,35900,0,34950,0,35900,35900,35900,35900,30000,34950,0,26250,0,34000,35900,0,0,0,0,34500,0,0,13500,0,0,35900,34650,35900,13500,32700,0,35900,35900,0,33300};
Client client;
for (int i = 0; i < MAX_ATTEMPTS; i++) {
client.connect(host, port, clientId);
++attempt;
std::cout << "Attempt " << attempt << " of " << MAX_ATTEMPTS<< std::endl;
for (int j=0;j<NUMREALTIMESYMBOLS;j++){
if(j==24 || j==30)
continue;
std::cout<<j<<" "<<realTimeSymbols[j]<<" "<<getLocalSymbol(realTimeSymbols[j],date)<<std::endl;
client.setTickerMap(j,realTimeSymbols[j],getLocalSymbol(realTimeSymbols[j],date));
}
}
}
客户端构造函数：
Client::Client(){
for(int i=0;i<50;i++){
symbolMap.push_back(" ");
localSymbolMap.push_back(" ");
}
}
上述代码在 24 和 30 处失败。因此，当 j 为 24 或 30 时循环继续作为解决方法。
std::string realTimeSymbolsArr[]={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","aa","bb","cc","dd","ee","ff","gg","hh","ii","jj","kk"};
subscriptionList[24][1]=24;subscriptionIndex[24][1]=1;
subscriptionList[24][2]=24;subscriptionIndex[24][2]=2;
subscriptionList[24][3]=24;subscriptionIndex[24][3]=3;
subscriptionList[30][1]=30;subscriptionIndex[30][1]=1;
subscriptionList[30][2]=30;subscriptionIndex[30][2]=2;
subscriptionList[30][3]=30;subscriptionIndex[30][3]=3;
您没有发布 getLocalSymbol 的源代码，但我必须假设它也使用相同的数据并且具有以下形式的流程：
getLocalSymbol(a, b) {
int i, j, old_i, old_j;
std::string value;
// Derive i and j from the parameters
// ...
// And build the String
do {
old_i = i;
old_j = j;
i = subscriptionList[old_i][old_j];
j = subscriptionIndex[old_i][old_j];
value += realTimeSymbolsArr[i];
} while(j > 0);
return value;
}
做对了吗？无论哪种方式，控制流或类似的东西似乎都是其中的一部分。
这适用于几乎所有 i 和 j 的值 - 除了前面提到的 24 和 30 的 i 值，以及1 到 3 对于 j。
有了这些值，i 和 j 在每次迭代中都保持不变，并且 value 变得越来越长，直到堆栈上的某些东西最终被覆盖， [=14] =] （从而导致循环终止）并破坏 value.
无论哪种方式，您 return 编辑的 std::string 现在已损坏，因为您在无限循环中超出了某个限制。
至于如何解决它，修复那个无限循环和修复你的数据
为了修复循环，限制迭代次数。
对于修复您的数据，既然您知道数据导致错误的原因，您应该能够自己弄清楚如何修复它。
记住，你必须修复BOTH。如果不修复数据，会得到一个不合理的long return值。而且如果你不修复迭代限制，一旦有人在更新数据时重复类似的错误，它就会再次崩溃。
我在 运行 程序的过程中遇到以下异常：
0 [main] myFunction 5560 cygwin_exception::open_stackdumpfile: Dumping stack trace to myFunction.exe.stackdump
stackdump文件内容如下：
Stack trace:
Frame Function Args
00000223800 0018006FB93 (0060007AE38, 00600083EC8, 00600083EF8, 00600083F28)
00000000006 0018007105A (0060007BB78, 00600000000, 0000000014C, 00000000000)
000002239E0 0018011C6A7 (00600083048, 00600083078, 006000830A8, 006000830D8)
00000000041 001801198DE (0060007DCB8, 0060007DCE8, 00000000000, 0060007DD48)
0060008F2B0 00180119DAB (0060007E1F8, 0060007E228, 0060007E258, 00000000006)
0060008F2B0 00180119F7C (0060007CB38, 0060007CB68, 0060007CB98, 0060007CBC8)
0060008F2B0 0018011A23F (00180115A0B, 0060007CCE8, 006000885B0, 00000000000)
0060008F2B0 00180148A65 (003FC4AA93D, 00600083900, 00100439102, 0060007B080)
0060008F2B0 001800C1DB3 (00000000000, 00000223EE0, 0010042A2BC, 00000223E90)
0060008F2B0 00180115A0B (00000223EE0, 0010042A2BC, 00000223E90, 00000000017)
0060008F2B0 00600000001 (00000223EE0, 0010042A2BC, 00000223E90, 00000000017)
End of stack trace
让我详细描述一下运行时间发生的特殊问题。我无法仅用文字描述问题，所以我列出了程序运行时和运行失败时的情况。
我在我的头文件中创建了一个字符串向量，并在构造函数中将它们初始化如下：
std::vector <std::string> symbolMap,localSymbolMap;
for(int i=0;i<100;i++){
symbolMap.push_back(" ");
localSymbolMap.push_back(" ");
}
我在程序的后面定义了一个函数来为这些变量分配适当的值，如下所示：
void TestClient::setTickerMap(int j, std::string symbol, std::string localSymbol){
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
现在，在主程序中，我调用这个函数如下：
TestClient client;
for(int j=0;j<27;j++){
std::cout<<j<<" "<<realTimeSymbols[j]<<" "<<getLocalSymbol(realTimeSymbols[j],date)<<std::endl;
client.setTickerMap(j,realTimeSymbols[j],getLocalSymbol(realTimeSymbols[j],date)); } // 在这里，我检查了每个 j，realTimeSymbols 和 getLocalSymbol 的值是否正确。
当我运行程序时，出现上述错误。当 j 等于 24 时，程序总是崩溃。
现在，以下解决方法正在发挥作用：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
// symbolMap[j]="SYNDIBANK";
// localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
if(j==1){
symbolMap[24]="SYNDIBANK";
localSymbolMap[24]="SYNDIBANK15MARFUT";
}
}
以上代码的以下 3 个变体不起作用，它们导致了原始错误：
变体 1：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
// symbolMap[j]="SYNDIBANK";
// localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
if(j==25){
symbolMap[24]="SYNDIBANK";
localSymbolMap[24]="SYNDIBANK15MARFUT";
}
}
变体 2：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
symbolMap[j]="SYNDIBANK";
localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
}
变体 3：
void TestClient ::setTickerMap(int j, std::string symbol, std::string localSymbol){
if(j==24){
symbolMap[j]="AB";
localSymbolMap[j]="SYNDIBANK15MARFUT";
}
else{
symbolMap[j] = symbol;
localSymbolMap[j]=localSymbol;
}
}
现在，如果我将单个字符分配给变体 3 中的 symbolMap，如下所示：
symbolMap[j]="A";
那么代码就可以运行（虽然是结果不正确）
我无法弄清楚是什么导致了这个 运行时间错误。我检查了相关问题 (Cygwin Exception : open stack dump file)，我没有单独的 cygwin 会话 运行ning。我已经重新启动了我的电脑，只是为了更加确定。问题仍然存在。关于为什么在我的 PC 上看到此行为的任何建议。
更新： 为确保错误与超出索引无关，主程序的以下调用工作正常：
TestClient client;
for(int j=25;j<27;j++){
std::cout<<j<<" "<<realTimeSymbols[j]<<" "<<getLocalSymbol(realTimeSymbols[j],date)<<std::endl;
client.setTickerMap(j,realTimeSymbols[j],getLocalSymbol(realTimeSymbols[j],date));
}
当j从24迭代到27时，程序也能正常工作。但是当循环从24之前的任何数字迭代到27时，程序就会失败。
GDB 输出 我对 gdb 没有太多经验，但如果有帮助，以下是 gdb 的输出：
GNU gdb (GDB) 7.8
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from order_trading2632_limit.exe...done.
(gdb) run
Starting program: /cygdrive/e/eclipse_workspace/testClient/Debug/testClient.exe
[New Thread 4832.0x11e4]
[New Thread 4832.0x1798]
Attempt 1 of 10000
[New Thread 4832.0x1020]
Connection successful
Program received signal SIGABRT, Aborted.
0x00000003fc4ab0e3 in cygstdc++-6!_ZNSs6assignERKSs () from /usr/bin/cygstdc++-6.dll
(gdb) bt
#0 0x00000003fc4ab0e3 in cygstdc++-6!_ZNSs6assignERKSs () from /usr/bin/cygstdc++-6.dll
#1 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) set $pc=*(void **)$rsp
(gdb) set $rsp=$rsp+8
(gdb) bt
#0 0x000007fefd3110ac in WaitForSingleObjectEx () from /cygdrive/c/Windows/system32/KERNELBASE.dll
#1 0x000000018011c639 in sig_send(_pinfo*, siginfo_t&, _cygtls*) () from /usr/bin/cygwin1.dll
#2 0x00000001801198de in _pinfo::kill(siginfo_t&) () from /usr/bin/cygwin1.dll
#3 0x0000000180119dab in kill0(int, siginfo_t&) () from /usr/bin/cygwin1.dll
#4 0x0000000180119f7c in raise () from /usr/bin/cygwin1.dll
#5 0x000000018011a23f in abort () from /usr/bin/cygwin1.dll
#6 0x0000000180148a65 in dlfree () from /usr/bin/cygwin1.dll
#7 0x00000001800c1db3 in free () from /usr/bin/cygwin1.dll
#8 0x0000000180115a0b in _sigfe () from /usr/bin/cygwin1.dll
#9 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
请注意，堆栈跟踪已损坏，我使用了以下问题中的技巧来打印堆栈跟踪 (GDB corrupted stack frame - How to debug?)。请帮助我进一步调试程序。
更新
并非只有index为24时才出现错误。在调用上述循环之前，我初始化了int、double和string等各种数组。发生此错误时，更改初始化次数会影响索引。今天，我在 运行 循环之前初始化了长度为 24 的向量，这次错误发生在索引 3 处。
实施解决方法确实令人沮丧。我不认为是否因此而忽略了其他一些内存问题。请提出建议。
代码
int main(int argc, char** argv) {
unsigned int port = 7900;
const char* host = "";
int clientId = 6;
int attempt = 0;
int MAX_ATTEMPTS=10000;
int NUMREALTIMESYMBOLS=37;
std::string realTimeSymbolsArr[]={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","aa","bb","cc","dd","ee","ff","gg","hh","ii","jj","kk"};
std::vector <std::string> realTimeSymbols(realTimeSymbolsArr,realTimeSymbolsArr+NUMREALTIMESYMBOLS);
int isTradeable[]={1,0,0,0,1,0,1,1,1,1,1,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1};
int numSubscriptions[]={2,2,1,4,1,1,2,6,3,1,1,1,2,1,3,1,1,2,1,3,1,1,1,10,4,1,6,1,1,9,4,2,1,3,1,1,2};
int subscriptionList[NUMREALTIMESYMBOLS][100];
int subscriptionIndex[NUMREALTIMESYMBOLS][100];
subscriptionList[0][0]=0;subscriptionIndex[0][0]=0;
subscriptionList[0][1]=2;subscriptionIndex[0][1]=2;
subscriptionList[1][0]=2;subscriptionIndex[1][0]=1;
subscriptionList[1][1]=0;subscriptionIndex[1][1]=3;
subscriptionList[2][0]=2;subscriptionIndex[2][0]=0;
subscriptionList[3][0]=4;subscriptionIndex[3][0]=2;
subscriptionList[3][1]=31;subscriptionIndex[3][1]=2;
subscriptionList[3][2]=13;subscriptionIndex[3][2]=3;
subscriptionList[3][3]=34;subscriptionIndex[3][3]=3;
subscriptionList[4][0]=4;subscriptionIndex[4][0]=0;
subscriptionList[5][0]=9;subscriptionIndex[5][0]=2;
subscriptionList[6][0]=6;subscriptionIndex[6][0]=0;
subscriptionList[6][1]=8;subscriptionIndex[6][1]=2;
subscriptionList[7][0]=7;subscriptionIndex[7][0]=0;
subscriptionList[7][1]=8;subscriptionIndex[7][1]=1;
subscriptionList[7][2]=31;subscriptionIndex[7][2]=1;
subscriptionList[7][3]=36;subscriptionIndex[7][3]=1;
subscriptionList[7][4]=13;subscriptionIndex[7][4]=2;
subscriptionList[7][5]=34;subscriptionIndex[7][5]=2;
subscriptionList[8][0]=8;subscriptionIndex[8][0]=0;
subscriptionList[8][1]=7;subscriptionIndex[8][1]=1;
subscriptionList[8][2]=21;subscriptionIndex[8][2]=3;
subscriptionList[9][0]=9;subscriptionIndex[9][0]=0;
subscriptionList[10][0]=10;subscriptionIndex[10][0]=0;
subscriptionList[11][0]=11;subscriptionIndex[11][0]=0;
subscriptionList[12][0]=28;subscriptionIndex[12][0]=3;
subscriptionList[12][1]=33;subscriptionIndex[12][1]=3;
subscriptionList[13][0]=13;subscriptionIndex[13][0]=0;
subscriptionList[14][0]=33;subscriptionIndex[14][0]=1;
subscriptionList[14][1]=28;subscriptionIndex[14][1]=2;
subscriptionList[14][2]=15;subscriptionIndex[14][2]=3;
subscriptionList[15][0]=15;subscriptionIndex[15][0]=0;
subscriptionList[16][0]=16;subscriptionIndex[16][0]=0;
subscriptionList[17][0]=0;subscriptionIndex[17][0]=1;
subscriptionList[17][1]=11;subscriptionIndex[17][1]=2;
subscriptionList[18][0]=7;subscriptionIndex[18][0]=2;
subscriptionList[19][0]=6;subscriptionIndex[19][0]=3;
subscriptionList[19][1]=8;subscriptionIndex[19][1]=3;
subscriptionList[19][2]=16;subscriptionIndex[19][2]=3;
subscriptionList[20][0]=9;subscriptionIndex[20][0]=1;
subscriptionList[21][0]=21;subscriptionIndex[21][0]=0;
subscriptionList[22][0]=9;subscriptionIndex[22][0]=3;
subscriptionList[23][0]=6;subscriptionIndex[23][0]=1;
subscriptionList[23][1]=10;subscriptionIndex[23][1]=1;
subscriptionList[23][2]=27;subscriptionIndex[23][2]=1;
subscriptionList[23][3]=29;subscriptionIndex[23][3]=1;
subscriptionList[23][4]=16;subscriptionIndex[23][4]=2;
subscriptionList[23][5]=21;subscriptionIndex[23][5]=2;
subscriptionList[23][6]=2;subscriptionIndex[23][6]=3;
subscriptionList[23][7]=4;subscriptionIndex[23][7]=3;
subscriptionList[23][8]=7;subscriptionIndex[23][8]=3;
subscriptionList[23][9]=36;subscriptionIndex[23][9]=3;
subscriptionList[24][0]=24;subscriptionIndex[24][0]=0;
subscriptionList[24][1]=24;subscriptionIndex[24][1]=1;
subscriptionList[24][2]=24;subscriptionIndex[24][2]=2;
subscriptionList[24][3]=24;subscriptionIndex[24][3]=3;
subscriptionList[25][0]=29;subscriptionIndex[25][0]=3;
subscriptionList[26][0]=21;subscriptionIndex[26][0]=1;
subscriptionList[26][1]=0;subscriptionIndex[26][1]=2;
subscriptionList[26][2]=10;subscriptionIndex[26][2]=2;
subscriptionList[26][3]=15;subscriptionIndex[26][3]=2;
subscriptionList[26][4]=27;subscriptionIndex[26][4]=2;
subscriptionList[26][5]=33;subscriptionIndex[26][5]=2;
subscriptionList[27][0]=27;subscriptionIndex[27][0]=0;
subscriptionList[28][0]=28;subscriptionIndex[28][0]=0;
subscriptionList[29][0]=29;subscriptionIndex[29][0]=0;
subscriptionList[29][1]=4;subscriptionIndex[29][1]=1;
subscriptionList[29][2]=13;subscriptionIndex[29][2]=1;
subscriptionList[29][3]=16;subscriptionIndex[29][3]=1;
subscriptionList[29][4]=34;subscriptionIndex[29][4]=1;
subscriptionList[29][5]=6;subscriptionIndex[29][5]=2;
subscriptionList[29][6]=36;subscriptionIndex[29][6]=2;
subscriptionList[29][7]=27;subscriptionIndex[29][7]=3;
subscriptionList[29][8]=31;subscriptionIndex[29][8]=3;
subscriptionList[30][0]=30;subscriptionIndex[30][0]=0;
subscriptionList[30][1]=30;subscriptionIndex[30][1]=1;
subscriptionList[30][2]=30;subscriptionIndex[30][2]=2;
subscriptionList[30][3]=30;subscriptionIndex[30][3]=3;
subscriptionList[31][0]=31;subscriptionIndex[31][0]=0;
subscriptionList[31][1]=29;subscriptionIndex[31][1]=2;
subscriptionList[32][0]=11;subscriptionIndex[32][0]=3;
subscriptionList[33][0]=33;subscriptionIndex[33][0]=0;
subscriptionList[33][1]=15;subscriptionIndex[33][1]=1;
subscriptionList[33][2]=28;subscriptionIndex[33][2]=1;
subscriptionList[34][0]=34;subscriptionIndex[34][0]=0;
subscriptionList[35][0]=11;subscriptionIndex[35][0]=1;
subscriptionList[36][0]=36;subscriptionIndex[36][0]=0;
subscriptionList[36][1]=10;subscriptionIndex[36][1]=3;
double a1[]={720,0.0,750,0.0,900,0.0,760,360,120,390,600,360,0.0,760,0.0,140,660,0.0,0.0,0.0,0.0,720,0.0,0.0,100,0.0,0.0,120,320,40,100,500,0.0,630,570,0.0,100};
double a2[]={0.5,0.0,1.3,0.0,0.6,0.0,0.45,0.15,0.45,0.4,0.25,1.4,0.0,0.55,0.0,0.2,0.8,0.0,0.0,0.0,0.0,0.6,0.0,0.0,0.4,0.0,0.0,0.25,0.4,0.25,0.4,0.35,0.0,0.4,0.5,0.0,0.4};
double a3[]={1350,0.0,1250,0.0,300,0.0,1150,1400,900,1200,850,900,0.0,600,0.0,1450,1450,0.0,0.0,0.0,0.0,1000,0.0,0.0,1200,0.0,0.0,1150,350,1400,1200,1350,0.0,1500,300,0.0,1200};
double a4[]={0.6,0.0,0.7,0.0,0.2,0.0,0.3,0.55,0.4,0.8,0.25,0.7,0.0,0.25,0.0,0.55,0.5,0.0,0.0,0.0,0.0,0.4,0.0,0.0,0.7,0.0,0.0,0.65,0.55,0.45,0.7,0.6,0.0,0.4,0.4,0.0,0.7};
double a5[]={300,0.0,1300,0.0,1350,0.0,200,1100,1200,650,1500,1350,0.0,1050,0.0,1300,550,0.0,0.0,0.0,0.0,250,0.0,0.0,150,0.0,0.0,1250,700,1150,150,1250,0.0,1500,1500,0.0,150};
double a6[]={0.3,0.0,0.8,0.0,0.6,0.0,0.5,0.6,0.6,0.3,0.35,0.7,0.0,0.55,0.0,0.45,0.35,0.0,0.0,0.0,0.0,0.3,0.0,0.0,0.5,0.0,0.0,0.55,0.3,0.35,0.5,0.75,0.0,0.2,0.5,0.0,0.5};
double a7[]={1500,0.0,1500,0.0,1050,0.0,750,1100,1350,1350,100,1350,0.0,550,0.0,1400,1000,0.0,0.0,0.0,0.0,1000,0.0,0.0,1350,0.0,0.0,350,550,350,1350,500,0.0,1350,1250,0.0,1350};
double a8[]={0.9,0.0,0.9,0.0,0.8,0.0,0.6,0.35,0.7,0.2,0.15,0.7,0.0,0.3,0.0,0.55,0.5,0.0,0.0,0.0,0.0,0,0.0,0.0,0.3,0.0,0.0,0.4,0.3,0.5,0.3,0.35,0.0,0.5,0.5,0.0,0.3};
double a9[]={0.008,0.0,0.009,0.0,0.01,0.0,0.01,0.009,0.009,0.007,0.009,0.01,0.0,0.009,0.0,0.01,0.008,0.0,0.0,0.0,0.0,0.01,0.0,0.0,0.006,0.0,0.0,0.008,0.009,0.01,0.006,0.009,0.0,0.008,0.009,0.0,0.006};
double a10[]={0.008,0.0,0.009,0.0,0.008,0.0,0.008,0.008,0.009,0.008,0.008,0.006,0.0,0.009,0.0,0.01,0.008,0.0,0.0,0.0,0.0,0.005,0.0,0.0,0.009,0.0,0.0,0.01,0.008,0.009,0.009,0.009,0.0,0.008,0.01,0.0,0.009};
double a11[]={0.4,0.0,0.2,0.0,0.1,0.0,0.3,0.4,0.2,0.1,0.7,0.2,0.0,0,0.0,0.1,0,0.0,0.0,0.0,0.0,0.1,0.0,0.0,0.2,0.0,0.0,0.3,0,0.2,0.2,0,0.0,0.7,0.1,0.0,0.2};
int a12[]={500,1000,8000,2000,4000,1000,1250,1000,1000,500,1000,125,2000,4000,1000,250,2000,250,1000,1250,500,2000,1000,500,0,250,500,4000,4000,1250,0,2000,500,500,4000,125,1000};
double a13[]={0.0013406,0.0020022,0.0018709,0.0018948,0.0017975,0.0014687,0.0011068,0.001355,0.0010891,0.00088151,0.0014294,0.0012989,0.0014205,0.0019711,0.0015365,0.0020505,0.0018961,0.00078672,0.0023114,0.0012203,0.0012849,0.0015674,0.0012844,0.0014197,0.0,0.00074657,0.00096164,0.0017109,0.0015385,0.00068178,0.0,0.0021815,0.00087359,0.00074349,0.0021645,0.001595,0.0014573};
int a14[]={14850,0,16500,0,13740,0,13740,24750,13740,14100,13740,30750,0,14400,0,13740,13740,0,0,0,0,14100,0,0,13500,0,0,13740,13740,25200,13500,13740,0,13740,13740,0,13740};
int a15[]={30750,0,35900,0,34950,0,35900,35900,35900,35900,30000,34950,0,26250,0,34000,35900,0,0,0,0,34500,0,0,13500,0,0,35900,34650,35900,13500,32700,0,35900,35900,0,33300};
Client client;
for (int i = 0; i < MAX_ATTEMPTS; i++) {
client.connect(host, port, clientId);
++attempt;
std::cout << "Attempt " << attempt << " of " << MAX_ATTEMPTS<< std::endl;
for (int j=0;j<NUMREALTIMESYMBOLS;j++){
if(j==24 || j==30)
continue;
std::cout<<j<<" "<<realTimeSymbols[j]<<" "<<getLocalSymbol(realTimeSymbols[j],date)<<std::endl;
client.setTickerMap(j,realTimeSymbols[j],getLocalSymbol(realTimeSymbols[j],date));
}
}
}
客户端构造函数：
Client::Client(){
for(int i=0;i<50;i++){
symbolMap.push_back(" ");
localSymbolMap.push_back(" ");
}
}
上述代码在 24 和 30 处失败。因此，当 j 为 24 或 30 时循环继续作为解决方法。
std::string realTimeSymbolsArr[]={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","aa","bb","cc","dd","ee","ff","gg","hh","ii","jj","kk"};
subscriptionList[24][1]=24;subscriptionIndex[24][1]=1;
subscriptionList[24][2]=24;subscriptionIndex[24][2]=2;
subscriptionList[24][3]=24;subscriptionIndex[24][3]=3;
subscriptionList[30][1]=30;subscriptionIndex[30][1]=1;
subscriptionList[30][2]=30;subscriptionIndex[30][2]=2;
subscriptionList[30][3]=30;subscriptionIndex[30][3]=3;
您没有发布 getLocalSymbol 的源代码，但我必须假设它也使用相同的数据并且具有以下形式的流程：
getLocalSymbol(a, b) {
int i, j, old_i, old_j;
std::string value;
// Derive i and j from the parameters
// ...
// And build the String
do {
old_i = i;
old_j = j;
i = subscriptionList[old_i][old_j];
j = subscriptionIndex[old_i][old_j];
value += realTimeSymbolsArr[i];
} while(j > 0);
return value;
}
做对了吗？无论哪种方式，控制流或类似的东西似乎都是其中的一部分。
这适用于几乎所有 i 和 j 的值 - 除了前面提到的 24 和 30 的 i 值，以及1 到 3 对于 j。
有了这些值，i 和 j 在每次迭代中都保持不变，并且 value 变得越来越长，直到堆栈上的某些东西最终被覆盖， [=14] =] （从而导致循环终止）并破坏 value.
无论哪种方式，您 return 编辑的 std::string 现在已损坏，因为您在无限循环中超出了某个限制。
至于如何解决它，修复那个无限循环和修复你的数据
为了修复循环，限制迭代次数。
对于修复您的数据，既然您知道数据导致错误的原因，您应该能够自己弄清楚如何修复它。
记住，你必须修复BOTH。如果不修复数据，会得到一个不合理的long return值。而且如果你不修复迭代限制，一旦有人在更新数据时重复类似的错误，它就会再次崩溃。