Category : asynchronous

Let’s say you’re doing an asynchronous operation (like ReadDirectoryChangesW) using I/O completion ports. And for each call to the function, you allocate an OVERLAPPED structure (perhaps with some additional data) for use within the I/O completion callback. And then within the callback, after the OVERLAPPED structure has been used, you free the memory using the ..

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When using ReadDirectoryChangesW asynchronously, you receive an event notification whenever one actually occurs. This might occur via event handle, I/O completion port, etc. Is this how DeviceIoControl/FSCTL_READ_USN_JOURNAL are supposed to work as well? It appears that DeviceIoControl/FSCTL_READ_USN_JOURNAL have some more complicated behaviors, as suggested here in the discussion of Timeout and BytesToWaitFor. It appears that ..

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I just study and try to use async function in class member function like example in MS document. using namespace std; Class Worker { private: vector<int> work_list; public: void WorkA(int A, vector<int> B) void Work_MP() } void Worker::Work_MP() { vector<std::future<void>> v_async; v_async.reserve(8); for (size_t i = 0; i < 8; i++) { v_async.emplace_back(std::async(std::launch::async, WorkA, i, ..

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I’ve set up a little asio client test project to try find out why my asio read routine only functions correctly first time: int main(int argc, char* argv[]) { Network network; network.connect("google.com"); network.request("/search?q=test+search"); network.connect("example.com"); network.request("/index.html HTTP/1.1"); while (1) {} return 0; } It’s suppose to allow connecting to a site and then performing requests and ..

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i am trying to setup a webserver using ESP32 SPIFFS file system, with <AsyncTCP.h> and <ESPAsyncWebServer.h>. // This is within main.cpp #include "foo.h" AsyncWebServer server(80); // Connect to Wi-Fi WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(1000); Serial.println("Connecting to WiFi.."); } // Print ESP Local IP Address Serial.println(WiFi.localIP()); // Route for root / web page ..

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