memory-management

问题 Finished implementing the minimal Heap structure with awesome help from Micheal . Right now I have one thing missing so it dynamically grows. As you can see in this image, it isn't dynamic: Instead of having a fixed size when I do pmm_map_physical_virtual(0x800000,0xC0800000) , the max I can go to is 8MB which is from 0xC00000000-0xC0800000 ... but then I have to be aware not to overwrite the kernel, so I will technically have less than 8MB . Is there a way so that the heap just continues

问题 Finished implementing the minimal Heap structure with awesome help from Micheal . Right now I have one thing missing so it dynamically grows. As you can see in this image, it isn't dynamic: Instead of having a fixed size when I do pmm_map_physical_virtual(0x800000,0xC0800000) , the max I can go to is 8MB which is from 0xC00000000-0xC0800000 ... but then I have to be aware not to overwrite the kernel, so I will technically have less than 8MB . Is there a way so that the heap just continues

问题 Finished implementing the minimal Heap structure with awesome help from Micheal . Right now I have one thing missing so it dynamically grows. As you can see in this image, it isn't dynamic: Instead of having a fixed size when I do pmm_map_physical_virtual(0x800000,0xC0800000) , the max I can go to is 8MB which is from 0xC00000000-0xC0800000 ... but then I have to be aware not to overwrite the kernel, so I will technically have less than 8MB . Is there a way so that the heap just continues

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last month . I am given a C project assignment in which I am asked to implement a simple memory management library. The way it works is that it has init function which takes a pointer(void*) to a chunk of memory allocated by another c program along with the size of the chunk and has two other

问题 How i can clear memory in this python loop ? import concurrent.futures as futures with futures.ThreadPoolExecutor(max_workers=100) as executor: fs = [executor.submit(get_data, url) for url in link] for i, f in enumerate(futures.as_completed(fs)): x= (f.result()) results.append(x) del x del f get_data - simple function wich using requests 回答1: My solution would be as such: import concurrent.futures as futures #split the original grand list into smaller batches batchurlList = [grandUrlList[x:x

问题 I have a UIViewController which contains a UIWebView . i login to a website for say facebook using the UIWebview in the UIViewController then i click on done, which dismiss the view controller, which i suppose will release the view controller. but when i open the UIWebview again (without exiting the app and also even after terminating the app) the webpage is still log into Facebook after the web view loads. How should i release the web view so that every time i click on done and return back

问题 I am a little confused as to whether my code using OpenCL mapped buffers are correct. I have two examples, one using CL_MEM_USE_HOST_PTR and one using CL_MEM_ALLOC_HOST_PTR. Both work and run on my local machine and OpenCL devices but I am interested in whether this is the correct way of doing the mapping, and whether it should work an all OpenCL devices. I am especially unsure about the USE_HOST_PTR example. I am only interested in the buffer/map specific operations. I am aware I should do

问题 I am a little confused as to whether my code using OpenCL mapped buffers are correct. I have two examples, one using CL_MEM_USE_HOST_PTR and one using CL_MEM_ALLOC_HOST_PTR. Both work and run on my local machine and OpenCL devices but I am interested in whether this is the correct way of doing the mapping, and whether it should work an all OpenCL devices. I am especially unsure about the USE_HOST_PTR example. I am only interested in the buffer/map specific operations. I am aware I should do

问题 This question already has answers here : returning a pointer to a literal (or constant) character array (string)? (3 answers) Closed 3 years ago . I have a simple code. #define MY_STRING "String example" char* string_return_function() { return MY_STRING; } The above code works but I am not sure how. I think the string_return_function() returns a local address, which would gets freed once the function exits. 回答1: No, that's not how it works. String literals are stored in memory that persists

问题 I need to POST a 5MB file from within a ResourceIntensiveTask, where the OS sets a max memory usage of 5MB. So trying to stream the file directly from storage, but the Stream associated to the HttpWebRequest keeps growing in size. This is the code: public void writeStream(Stream writer, string filesource, string filename) { var store = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication(); var f = store.OpenFile(filesource, FileMode.Open, FileAccess.Read); store.Dispose()