/[cvs]/joko/Uni/BSArch/04/bmp_fractal.c

Diff of /joko/Uni/BSArch/04/bmp_fractal.c

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-revision 1.11 by joko,
Sun Jul  2 02:12:27 2006 UTC
+revision 1.13 by joko,
Sun Jul  2 10:45:02 2006 UTC
 Line 15
  #define YSIZE 500
  #include "algorithm.h"
- #define VERBOSE_HANDLE "stderr";
  BOOL VERBOSE = FALSE;
-Line 158 
 DWORD WINAPI fractal_create_segment (LPV
+Line 156 
 DWORD WINAPI fractal_create_segment (LPV
  }
+ BOOL scan_argv(int argc, char *argv[], char opt_name[], char *opt_value[]) {
+   int i;
+   char * opt_current_name;
+   char * opt_current_value;
+   //printf("searching for: '%s'\n", opt_name);
+   for (i = 1; i < argc; i++) {
+     opt_current_name = argv[i];
+     if (strcmp(opt_current_name, opt_name) == 0) {
+       //printf("opt: %s\n", opt_current_name);
+       opt_current_value = argv[i+1];
+       //printf("opt-current-value: %s\n", opt_current_value);
+       if (opt_current_value != NULL) {
+         //*opt_value = *argv[i+1];
+         *opt_value = *opt_current_value;
+         //printf("opt-value: %s\n", opt_value);
+       }
+       return TRUE;
+     }
+   }
+   return FALSE;
+ }
  int main(int argc, char *argv[]) {
-Line 174 
 int main(int argc, char *argv[]) {
+Line 196 
 int main(int argc, char *argv[]) {
    PWORKERARGS worker_args;
    // threads or processes?
-   BOOL use_processes = TRUE;
+   BOOL use_processes = FALSE;
-   BOOL is_worker = FALSE;
+   BOOL is_worker_process = FALSE;
    // information for creating processes
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
-   char szCmdline[1024];
+   char szCmdline[65536];
+   // command line stuff
+   char arg_option[1024];
+   char *arg_value[1024];
+   //arg_value = malloc(1024);
-   VERBOSE = TRUE;
+   VERBOSE = FALSE;
    // "parse" command line arguments
+   /*
    if (argc >= 2) {
      if (strcmp(argv[1], "--worker") == 0) {
-       is_worker = TRUE;
+       is_worker_process = TRUE;
      }
    }
+   */
+   //scan_argv(argc, argv, "--worker", &arg_value);
+   //*arg_value = '\0';
+   // parse command line arguments
+   if (scan_argv(argc, argv, "--worker", arg_value)) {
+     use_processes = TRUE;
+     is_worker_process = TRUE;
+   } else if (scan_argv(argc, argv, "-p", arg_value)) {
+     use_processes = TRUE;
+     is_worker_process = FALSE;
+     workers = atoi(arg_value);
+   } else if (scan_argv(argc, argv, "-t", arg_value)) {
+     use_processes = FALSE;
+     is_worker_process = FALSE;
+     workers = atoi(arg_value);
+   }
+   //printf("value: %s\n", arg_value);
+   //exit(0);
    if (VERBOSE && use_processes) {
      fprintf(stdout, "===================================================== ");
-     if (is_worker)
+     if (is_worker_process)
        fprintf(stdout, "WORKER-PROCESS\n");
      else
        fprintf(stdout, "MASTER-PROCESS\n");
    }
    // create empty bmp-file (black background)
-   if (!is_worker)
+   if (!is_worker_process)
      write_blank_file("test.bmp");
-   if (!is_worker) {
+   // master creates memory mapped file
+   if (!is_worker_process) {
-     /* open file for reading and writing */
+     // open file for reading and writing
      hFile = CreateFile("test.bmp", GENERIC_WRITE|GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
      if (INVALID_HANDLE_VALUE == hFile) {
        err = GetLastError();
        printErrorAndExit("Error at CreateFile",err);
      }
-     /* create the file mapping object */
+     // create the file mapping object
      hMap = CreateFileMapping(hFile, NULL, PAGE_READWRITE, 0, 0, "bmp_fractal");
      if (NULL == hMap) {
        printErrorAndExit("Error at CreateFileMapping", GetLastError());
      }
+   // worker uses existing memory mapped file
    } else {
      // open existing mapping object
-Line 227 
 int main(int argc, char *argv[]) {
+Line 279 
 int main(int argc, char *argv[]) {
        printErrorAndExit("Error at OpenFileMapping", GetLastError());
    }
-   /* map the whole file into the process context */
+   // map the whole file into the process context
    pData = MapViewOfFile(hMap, FILE_MAP_WRITE, 0, 0, 0);
    if (NULL == pData) {
      printErrorAndExit("Error at MapViewOfFile", GetLastError());
-Line 244 
 int main(int argc, char *argv[]) {
+Line 296 
 int main(int argc, char *argv[]) {
    }
-   if (use_processes && is_worker) {
+   if (use_processes && is_worker_process) {
      if (VERBOSE)
        fprintf(stdout, "inside worker-process\n");
-Line 263 
 int main(int argc, char *argv[]) {
+Line 315 
 int main(int argc, char *argv[]) {
      worker_args[0].pBitmap = pDataBitmap;
      fractal_create_segment(&worker_args[0]);
+     // cleanup mmap-handle
+     if (!CloseHandle(hMap))
+       printErrorAndExit("Error at CloseHandle", GetLastError());
      return 0;
    }
    /*
-Line 375 
 int main(int argc, char *argv[]) {
+Line 431 
 int main(int argc, char *argv[]) {
    for (worker_index = 0; worker_index < workers; worker_index++)
      CloseHandle(worker_handles[worker_index]);
-   /* write the result into the file */
+   // write the result into the file
    if (!FlushViewOfFile(pData, 0)) {
      err = GetLastError();
      printErrorAndExit("Error at UnmapViewOfFile", err);
    }
-   /* remove the mapped file */
+   // remove the mapped file
    if (!UnmapViewOfFile(pData)) {
      err = GetLastError();
      printErrorAndExit("Error at UnmapViewOfFile", err);
      exit(err);
    }
-   /* cleanup handles */
+   // cleanup handles
    if (!CloseHandle(hMap) || !CloseHandle(hFile) ) {
      err = GetLastError();
      printErrorAndExit("Error at CloseHandle", err);

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Removed from v.1.11
 


changed lines


 
Added in v.1.13
 Legend:



Removed from v.1.11
 


changed lines


 
Added in v.1.13
-Removed from v.1.11
+Added in v.1.13

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