public release

sphaira/source/log.cpp

@@ -0,0 +1,72 @@
+#include "log.hpp"
+#include <cstdio>
+#include <cstdarg>
+#include <unistd.h>
+#include <mutex>
+#include <switch.h>
+
+#if sphaira_USE_LOG
+namespace {
+
+constexpr const char* logpath = "/config/sphaira/log.txt";
+
+std::FILE* file{};
+int nxlink_socket{};
+std::mutex mutex{};
+
+} // namespace
+
+auto log_file_init() -> bool {
+    std::scoped_lock lock{mutex};
+    if (file) {
+        return false;
+    }
+
+    file = std::fopen(logpath, "w");
+    return file != nullptr;
+}
+
+auto log_nxlink_init() -> bool {
+    std::scoped_lock lock{mutex};
+    if (nxlink_socket) {
+        return false;
+    }
+
+    nxlink_socket = nxlinkConnectToHost(true, false);
+    return nxlink_socket != 0;
+}
+
+void log_file_exit() {
+    std::scoped_lock lock{mutex};
+    if (file) {
+        std::fclose(file);
+        file = nullptr;
+    }
+}
+
+void log_nxlink_exit() {
+    std::scoped_lock lock{mutex};
+    if (nxlink_socket) {
+        close(nxlink_socket);
+        nxlink_socket = 0;
+    }
+}
+
+void log_write(const char* s, ...) {
+    std::scoped_lock lock{mutex};
+    if (!file && !nxlink_socket) {
+        return;
+    }
+
+    std::va_list v{};
+    va_start(v, s);
+    if (file) {
+        std::vfprintf(file, s, v);
+        std::fflush(file);
+    }
+    if (nxlink_socket) {
+        std::vprintf(s, v);
+    }
+    va_end(v);
+}
+#endif