我在父进程中有以下代码:
vector<vector<double> > matrix(n); /* matrix NxM */
/* pushing data */
HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE,
0, PAGE_READWRITE, 0, 2*sizeof(int) + sizeof(double)*n*m, lpName);
LPVOID lp = MapViewOfFile(hMapping, FILE_MAP_WRITE, 0, 0, 0);
mat_tmp* tmp = (mat_tmp*)lp;
tmp->n = n; tmp->m = m;
tmp->vv = vector<vector<double> >(matrix.begin(), matrix.end());
在一个子进程中,我试图接收这个向量>,但我的子进程每次都会终止。
LPTSTR lpName = _tcsdup(TEXT(map_name));
HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE,
0, PAGE_READWRITE, 0, 2*sizeof(int) + sizeof(double)*n*m, lpName);
LPVOID lp = MapViewOfFile(hMapping, FILE_MAP_WRITE, 0, 0, 0);
mat_tmp * tmp = (mat_tmp*)lp;
vector<vector<double> > matrix(tmp->vv.begin(), tmp->vv.end());
当我尝试使用matrix
子进程中的数据时发生错误。小结构如下:
struct mat_tmp
{
int n; int m; vector<vector<double> > vv;
};
如何在孩子身上正确接收我的载体?