api programming for dummies

NSize);Hprocess: Handle to the process that contains the ModuleHmodule: The handle of the module to retrieve, and if the parameter is NULL, the function returns the name of the process that called the functionLpbasename: The base name is truncated if the Buffer;buffer space used to receive the module name is not enoughSpace size of Nsize:lpbasename bufferReturn value: The length of the string in copy to Lpbasename is returned if the call succeeds; 0 is returned if the call failsSample program:#

LPARAM) {unreferenced_parameter (LPARAM); Switch(message) { CaseWm_initdialog:return(INT_PTR) TRUE; CaseWm_command:if(LoWord (wParam) = = IDOK | | LoWord (wParam) = =IDCANCEL) {EndDialog (hdlg, LoWord (WParam)); return(INT_PTR) TRUE; } Break; } return(INT_PTR) FALSE;} BOOL CALLBACK Enumwindowsproc (HWND hwnd, LPARAM LPARAM) {Dlong*pdlong = (dlong*) LParam; BOOL benable= (BOOL) pdlong->LParam; if(hwnd! = (HWND) pdlong->WParam) EnableWindow (hwnd, benable); returnTRUE;}R

This time we start Spark-shell by specifying the Executor-memory parameter:The boot was successful.On the command line we have specified that the memory of executor on each machine Spark-shell run take up is 1g in size, and after successful launch see Web page:To read files from HDFs:The Mappedrdd returned in the command line, using todebugstring, can view its lineage relationship:You can see that Mappedrdd was converted from Hadooprdd.Then look at the source code of Textfile:Hadoopfile This met

Below is a look at the use of Union:Use the collect operation to see the results of the execution:Then look at the use of Groupbykey:Execution Result:The join operation is the process of a Cartesian product operation, as shown in the following example:To perform a join operation on RDD3 and RDD4:Use collect to view execution results:It can be seen that the join operation is exactly a Cartesian product operation;The reduce itself, which is an action-type operation in an RDD operation, causes the

::getaddr () {if (IsValid ()) {return Inet_ntoa (M_ADDRESS.SIN_ADDR); } return std::string ();} int SOCKET::GETPORT () const{if (IsValid ()) {return ntohs (m_address.sin_port); } return-1;} static ssize_t readn (int fd, void *buf, size_t count) {size_t nleft = count; ssize_t nread = 0; Char *ptr = Static_castSocketException.h#ifndef socketexception_h_included#define socketexception_h_included//Exception handling Class (the next section will use ...) Class Socketexception{public: sock

(). Return value: Returns ERROR_SUCCESS if the function call succeeds. Otherwise, a nonzero error code is returned.Regdeletevalue () Introduction:Function: Deletes a value below the specified item. Function prototypes: Lstatus regdeletevalue (HKEY HKEY,LPCSTR lpvaluename//point to the name of the value you want to delete.); return value: Returns ERROR_SUCCESS if the function call succeeds. Otherwise, a nonzero error code is returned.DEMO CODE:#include #includeintMainvoid) {long Long, LONG0; HKE

; LONG LParam;} Stlong;//definition of callback functionBOOL CALLBACK Enumwindowsproc (HWND hwnd, LPARAM LPARAM) {Stlong*pdlong = (stlong*) LParam; BOOL benable= (BOOL) pdlong->LParam;if(hwnd! = (HWND) pdlong->WParam) EnableWindow (hwnd, benable);//if the top-level window handle that is currently enumerated is different from the extra information passed by the keynote function (Enumwindos function) to do the specified top-level window handle, then the related enable or enable deactivation operat

Http programming (2) using Apache API implementation, apacheapi Download the jar packageImport java. io. fileOutputStream; import java. io. IOException; import org. apache. http. httpEntity; import org. apache. http. httpResponse; import org. apache. http. client. httpClient; import org. apache. http. client. methods. httpGet; import org. apache. http. impl. client. defaultHttpClient; import org. apache. ht

The output from the WordCount in a previous article shows that the results are unsorted and how do you sort the output of spark?The result of Reducebykey is Key,value position permutation (number, character), then the number is sorted, and then the key,value position is replaced by the sorted result, and finally the result is stored in HDFsWe can find out that we have successfully sorted out the results!Spark API