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 |
|
|
|
//BOOL scan_argv(int argc, char *argv[], char opt_name[], char *opt_value[]) { |
|
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 |
int i; |
int i; |
161 |
char * opt_current_name; |
char * opt_current_name; |
186 |
unsigned char *pDataBitmap; |
unsigned char *pDataBitmap; |
187 |
|
|
188 |
// workers |
// workers |
189 |
int workers = 5; |
int workers; |
190 |
int worker_index, worker_rows, worker_startrow; |
int worker_index, worker_rows, worker_startrow; |
191 |
HANDLE *worker_handles; |
HANDLE *worker_handles; |
192 |
PWORKERARGS worker_args; |
PWORKERARGS worker_args; |
193 |
|
int worker_count; |
194 |
|
|
195 |
// threads or processes? |
// threads or processes? |
196 |
BOOL use_processes = FALSE; |
BOOL use_processes = FALSE; |
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 |
427 |
|
|
428 |
} |
} |
429 |
|
|
|
// wait for all threads |
|
430 |
if (VERBOSE) |
if (VERBOSE) |
431 |
fprintf(stdout, "waiting for workers to finish...\n"); |
fprintf(stdout, "waiting for workers to finish...\n"); |
432 |
if (WaitForMultipleObjects(workers, worker_handles, TRUE, INFINITE) == WAIT_FAILED) |
|
433 |
perror("WaitForMultipleObjects"); |
// wait for all workers |
434 |
|
for (worker_index = 0; worker_index < workers; worker_index += MAXIMUM_WAIT_OBJECTS) { |
435 |
|
worker_count = ((workers - worker_index) > MAXIMUM_WAIT_OBJECTS) ? MAXIMUM_WAIT_OBJECTS : (workers - worker_index); |
436 |
|
if (WaitForMultipleObjects(worker_count, &worker_handles[worker_index], TRUE, INFINITE) == WAIT_FAILED) |
437 |
|
printErrorAndExit("Error at WaitForMultipleObjects", GetLastError()); |
438 |
|
} |
439 |
|
|
440 |
// debugging: just run single thread |
// debugging: just run single thread |
441 |
//if (WaitForSingleObject(worker_handles[0], INFINITE) == WAIT_FAILED) |
//if (WaitForSingleObject(worker_handles[0], INFINITE) == WAIT_FAILED) |