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| author | crupest <crupest@outlook.com> | 2021-06-06 22:05:28 +0800 |
|---|---|---|
| committer | crupest <crupest@outlook.com> | 2021-06-06 22:05:28 +0800 |
| commit | f0309ee1e5cd268091f59f3aa377beca77d76c5c (patch) | |
| tree | 14b86eaf2b9181d9a171ee8c9d11173beeebec52 /works/life/computer-network-experiment/Common.cpp | |
| parent | ff92a987ad05e40a1315306b31bbc4a219d2ee1d (diff) | |
| download | crupest-f0309ee1e5cd268091f59f3aa377beca77d76c5c.tar.gz crupest-f0309ee1e5cd268091f59f3aa377beca77d76c5c.tar.bz2 crupest-f0309ee1e5cd268091f59f3aa377beca77d76c5c.zip | |
import(life): ...
Diffstat (limited to 'works/life/computer-network-experiment/Common.cpp')
| -rw-r--r-- | works/life/computer-network-experiment/Common.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/works/life/computer-network-experiment/Common.cpp b/works/life/computer-network-experiment/Common.cpp new file mode 100644 index 0000000..02ac550 --- /dev/null +++ b/works/life/computer-network-experiment/Common.cpp @@ -0,0 +1,48 @@ +#include "Common.h"
+
+#include "Output.h"
+
+#ifdef WIN32
+#include <Windows.h>
+#include <winsock.h>
+#pragma comment(lib, "Ws2_32.lib")
+#endif
+
+[[noreturn]] void PrintErrorMessageAndExit(StringView message,
+ bool print_last_error) {
+
+ SendOutput(CRUT("{}\n"), message);
+
+ if (print_last_error) {
+#ifdef WIN32
+ auto error_code = WSAGetLastError();
+ SendOutput(OutputType::Error, CRUT("Error code is {}.\n"), error_code);
+ wchar_t buffer[500];
+ if (!FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_ARGUMENT_ARRAY |
+ FORMAT_MESSAGE_IGNORE_INSERTS,
+ nullptr, error_code, 0, buffer, 500, nullptr)) {
+ SendOutput(OutputType::Error, CRUT("Failed to format error message.\n"));
+ } else {
+ SendOutput(OutputType::Error, CRUT("{}\n"), buffer);
+ }
+#else
+#endif
+ }
+
+#ifdef WIN32
+ WSACleanup();
+#endif
+
+ std::exit(1);
+}
+
+#ifdef WIN32
+void InitWSA() {
+ WSADATA wsa_data;
+
+ if (WSAStartup(MAKEWORD(2, 2), &wsa_data)) { // initialize wsa
+ PrintErrorMessageAndExit(CRUT("Failed to initialize wsa."));
+ }
+}
+#endif
|