I have this method which supposed to get a buffer and write some content to a file:
void writeTasksToDevice()
{
TaskInfo *task;
unsigned int i = lastTaskWritten;
printf("writing elihsa\n");
outputFile.write(" Elisha2", 7);
//pthread_mutex_lock(&fileMutex);
for(; i < (*writingTasks).size(); i++)
{
task = (*writingTasks).at(i);
if(NULL == task)
{
printf("ERROR!!! in writeTasksToDevice - there's a null task in taskQueue. By "
" design that should NEVER happen\n");
exit(-1);
}
if(true == task->wasItWritten)
{
//continue;
}
else // we've found a task to write!
{
printf("trying to write buffer to file\n");
printf("buffer = %s, length = %d\n", task->buffer, task->length);<====PRINT HERE IS OK< PRINTING WHAT IS WANTED
outputFile.write(task->buffer, task->length); <===SHOULD WRITE HERE
printf("done writing file\n");
}
}
//pthread_mutex_unlock(&fileMutex);
// TODO: check if we should go to sleep and wait for new tasks
// and then go to sleep
}
the buffer content is:
task->buffer: elishaefla
task->length: 10
i opened the stream in another init function using:
outputFile.open(fileName, ios :: app);
if(NULL == outputFile)
{
//print error;
return -1;
}
but at the end, the file content is empty, nothing is being written.
any idea why?