49 |
0, |
0, |
50 |
NULL )) |
NULL )) |
51 |
{ |
{ |
52 |
fprintf(stdout, "%s: %s\n", msg, lpMsgBuf); |
fprintf(stderr, "%s: %s\n", msg, lpMsgBuf); |
53 |
LocalFree(lpMsgBuf); |
LocalFree(lpMsgBuf); |
54 |
} |
} |
55 |
else |
else |
56 |
{ |
{ |
57 |
fprintf(stdout, "Error at FormatMesage: %d\n",err=GetLastError()); |
fprintf(stderr, "Error at FormatMesage: %d\n",err=GetLastError()); |
58 |
} |
} |
59 |
exit(err); |
exit(err); |
60 |
} |
} |
68 |
// open file handle |
// open file handle |
69 |
fd = fopen(filename, "wb+"); |
fd = fopen(filename, "wb+"); |
70 |
if (NULL == fd) { |
if (NULL == fd) { |
71 |
perror("open"); |
perror("Error while opening file for writing"); |
72 |
exit(1); |
exit(1); |
73 |
} |
} |
74 |
|
|
77 |
|
|
78 |
// error checking |
// error checking |
79 |
if (-1 == len || len != sizeof(header)) { |
if (-1 == len || len != sizeof(header)) { |
80 |
perror("write"); |
perror("Error while writing header to file"); |
81 |
exit(2); |
exit(2); |
82 |
} |
} |
83 |
|
|
86 |
for (i = 0; i < img_size; i++) { |
for (i = 0; i < img_size; i++) { |
87 |
len = fwrite("\0\0\0", 1, 3, fd); |
len = fwrite("\0\0\0", 1, 3, fd); |
88 |
if (-1 == len || len != 3) { |
if (-1 == len || len != 3) { |
89 |
perror("write"); |
perror("Error while writing data to file"); |
90 |
exit(4); |
exit(4); |
91 |
} |
} |
92 |
} |
} |
156 |
|
|
157 |
} |
} |
158 |
|
|
159 |
BOOL scan_argv(int argc, char *argv[], char opt_name[], char *opt_value[]) { |
//BOOL scan_argv(int argc, char *argv[], char opt_name[], char *opt_value[]) { |
160 |
|
BOOL scan_argv(int argc, char *argv[], char opt_name[], char *opt_value) { |
161 |
int i; |
int i; |
162 |
char * opt_current_name; |
char * opt_current_name; |
163 |
char * opt_current_value; |
char * opt_current_value; |
164 |
|
|
165 |
//printf("searching for: '%s'\n", opt_name); |
//printf("searching for: '%s'\n", opt_name); |
166 |
|
|
167 |
for (i = 1; i < argc; i++) { |
for (i = 1; i < argc; i++) { |
168 |
opt_current_name = argv[i]; |
opt_current_name = argv[i]; |
169 |
if (strcmp(opt_current_name, opt_name) == 0) { |
if (strcmp(opt_current_name, opt_name) == 0) { |
|
//printf("opt: %s\n", opt_current_name); |
|
170 |
opt_current_value = argv[i+1]; |
opt_current_value = argv[i+1]; |
|
//printf("opt-current-value: %s\n", opt_current_value); |
|
171 |
if (opt_current_value != NULL) { |
if (opt_current_value != NULL) { |
172 |
//*opt_value = *argv[i+1]; |
strcpy(opt_value, opt_current_value); |
|
*opt_value = *opt_current_value; |
|
|
//printf("opt-value: %s\n", opt_value); |
|
173 |
} |
} |
174 |
return TRUE; |
return TRUE; |
175 |
} |
} |
203 |
|
|
204 |
// command line stuff |
// command line stuff |
205 |
char arg_option[1024]; |
char arg_option[1024]; |
206 |
char *arg_value[1024]; |
char arg_value[1024]; |
207 |
//arg_value = malloc(1024); |
char *bmp_filename; |
208 |
|
char *verbose_option = ""; |
209 |
|
|
210 |
VERBOSE = FALSE; |
|
211 |
|
// parse command line arguments |
212 |
|
if (argc < 2) { |
213 |
|
fprintf(stderr, "Can not run without arguments!\nPlease specify '-t {number of threads}' or '-p {number of processes}' and an image filename.\n"); |
214 |
|
exit(EXIT_FAILURE); |
215 |
|
} |
216 |
|
|
217 |
// "parse" command line arguments |
if (scan_argv(argc, argv, "--verbose", arg_value)) { |
218 |
/* |
VERBOSE = TRUE; |
|
if (argc >= 2) { |
|
|
if (strcmp(argv[1], "--worker") == 0) { |
|
|
is_worker_process = TRUE; |
|
|
} |
|
219 |
} |
} |
|
*/ |
|
220 |
|
|
|
//scan_argv(argc, argv, "--worker", &arg_value); |
|
|
//*arg_value = '\0'; |
|
|
// parse command line arguments |
|
221 |
if (scan_argv(argc, argv, "--worker", arg_value)) { |
if (scan_argv(argc, argv, "--worker", arg_value)) { |
222 |
use_processes = TRUE; |
use_processes = TRUE; |
223 |
is_worker_process = TRUE; |
is_worker_process = TRUE; |
224 |
|
|
225 |
} else if (scan_argv(argc, argv, "-p", arg_value)) { |
} else if (scan_argv(argc, argv, "-p", arg_value)) { |
226 |
|
if (strlen(arg_value) == 0) { |
227 |
|
fprintf(stderr, "Please specify number of processes!\n"); |
228 |
|
exit(EXIT_FAILURE); |
229 |
|
} |
230 |
use_processes = TRUE; |
use_processes = TRUE; |
231 |
is_worker_process = FALSE; |
is_worker_process = FALSE; |
232 |
workers = atoi(arg_value); |
workers = atoi(arg_value); |
233 |
|
|
234 |
} else if (scan_argv(argc, argv, "-t", arg_value)) { |
} else if (scan_argv(argc, argv, "-t", arg_value)) { |
235 |
|
if (strlen(arg_value) == 0) { |
236 |
|
fprintf(stderr, "Please specify number of threads!\n"); |
237 |
|
exit(EXIT_FAILURE); |
238 |
|
} |
239 |
use_processes = FALSE; |
use_processes = FALSE; |
240 |
is_worker_process = FALSE; |
is_worker_process = FALSE; |
241 |
workers = atoi(arg_value); |
workers = atoi(arg_value); |
242 |
|
|
243 |
} |
} |
|
//printf("value: %s\n", arg_value); |
|
|
//exit(0); |
|
244 |
|
|
245 |
|
|
246 |
if (VERBOSE && use_processes) { |
if (VERBOSE && use_processes) { |
250 |
else |
else |
251 |
fprintf(stdout, "MASTER-PROCESS\n"); |
fprintf(stdout, "MASTER-PROCESS\n"); |
252 |
} |
} |
|
|
|
|
// create empty bmp-file (black background) |
|
|
if (!is_worker_process) |
|
|
write_blank_file("test.bmp"); |
|
253 |
|
|
254 |
// master creates memory mapped file |
|
255 |
|
// master creates memory mapped file ("empty" image) |
256 |
if (!is_worker_process) { |
if (!is_worker_process) { |
257 |
|
|
258 |
|
if (argc < 4) { |
259 |
|
fprintf(stderr, "Must give filename of image as third argument!\n"); |
260 |
|
exit(EXIT_FAILURE); |
261 |
|
} |
262 |
|
|
263 |
|
bmp_filename = argv[3]; |
264 |
|
|
265 |
|
// create empty bmp-file (black background) |
266 |
|
write_blank_file(bmp_filename); |
267 |
|
|
268 |
// open file for reading and writing |
// open file for reading and writing |
269 |
hFile = CreateFile("test.bmp", GENERIC_WRITE|GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
hFile = CreateFile(bmp_filename, GENERIC_WRITE|GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); |
270 |
if (INVALID_HANDLE_VALUE == hFile) { |
if (INVALID_HANDLE_VALUE == hFile) { |
271 |
err = GetLastError(); |
err = GetLastError(); |
272 |
printErrorAndExit("Error at CreateFile",err); |
printErrorAndExit("Error at CreateFile",err); |
315 |
|
|
316 |
// allocate memory for one worker's arguments |
// allocate memory for one worker's arguments |
317 |
if ((worker_args = malloc(sizeof(worker_args[0]))) == NULL) |
if ((worker_args = malloc(sizeof(worker_args[0]))) == NULL) |
318 |
perror("malloc"), exit(1); |
perror("Error while allocating memory for worker arguments via malloc"), exit(1); |
319 |
|
|
320 |
// assign worker's arguments |
// assign worker's arguments |
321 |
worker_args[0].start_row = worker_startrow; |
worker_args[0].start_row = worker_startrow; |
348 |
|
|
349 |
// allocate memory for table of all worker handles |
// allocate memory for table of all worker handles |
350 |
if ((worker_handles = malloc(workers * sizeof(worker_handles[0]))) == NULL) |
if ((worker_handles = malloc(workers * sizeof(worker_handles[0]))) == NULL) |
351 |
perror("malloc"), exit(1); |
perror("Error while allocating memory for worker handles via malloc"), exit(1); |
352 |
|
|
353 |
// allocate memory for table of all worker arguments |
// allocate memory for table of all worker arguments |
354 |
if ((worker_args = malloc(workers * sizeof(worker_args[0]))) == NULL) |
if ((worker_args = malloc(workers * sizeof(worker_args[0]))) == NULL) |
355 |
perror("malloc"), exit(1); |
perror("Error while allocating memory for worker arguments via malloc"), exit(1); |
356 |
|
|
357 |
|
|
358 |
// calculate bitmap segment length for workers |
// calculate bitmap segment length for workers |
398 |
|
|
399 |
} else { |
} else { |
400 |
|
|
401 |
_snprintf(szCmdline, 1023, "%s %s %i %i", argv[0], "--worker", worker_startrow, worker_rows); |
if (VERBOSE) |
402 |
|
verbose_option = "--verbose"; |
403 |
|
_snprintf(szCmdline, 1023, "%s %s %i %i %s", argv[0], "--worker", worker_startrow, worker_rows, verbose_option); |
404 |
if (VERBOSE) |
if (VERBOSE) |
405 |
fprintf(stdout, "starting worker process: %s\n", szCmdline); |
fprintf(stdout, "starting worker process: %s\n", szCmdline); |
406 |
ZeroMemory( &si, sizeof(si) ); |
ZeroMemory( &si, sizeof(si) ); |
431 |
if (VERBOSE) |
if (VERBOSE) |
432 |
fprintf(stdout, "waiting for workers to finish...\n"); |
fprintf(stdout, "waiting for workers to finish...\n"); |
433 |
if (WaitForMultipleObjects(workers, worker_handles, TRUE, INFINITE) == WAIT_FAILED) |
if (WaitForMultipleObjects(workers, worker_handles, TRUE, INFINITE) == WAIT_FAILED) |
434 |
perror("WaitForMultipleObjects"); |
printErrorAndExit("Error at WaitForMultipleObjects", GetLastError()); |
435 |
|
|
436 |
// debugging: just run single thread |
// debugging: just run single thread |
437 |
//if (WaitForSingleObject(worker_handles[0], INFINITE) == WAIT_FAILED) |
//if (WaitForSingleObject(worker_handles[0], INFINITE) == WAIT_FAILED) |