Initial commit

rpcsx-os/iodev/stdout.cpp

@@ -0,0 +1,49 @@
+#include "io-device.hpp"
+#include <cstdio>
+
+
+struct StdoutInstance : public IoDeviceInstance {};
+
+struct StdoutDevice : public IoDevice {
+  StdoutInstance *instance = nullptr;
+};
+
+static std::int64_t stdout_instance_write(IoDeviceInstance *instance,
+                                          const void *data,
+                                          std::uint64_t size) {
+  auto result = std::fwrite(data, 1, size, stdout);
+  std::fflush(stdout);
+
+  return result;
+}
+
+static std::int64_t stdout_instance_close(IoDeviceInstance *instance) {
+  instance->device->decRef();
+  return 0;
+}
+
+static std::int32_t stdout_device_open(IoDevice *device,
+                                       orbis::Ref<IoDeviceInstance> *instance,
+                                       const char *path, std::uint32_t flags,
+                                       std::uint32_t mode) {
+  auto stdoutDevice = static_cast<StdoutDevice *>(device);
+  if (stdoutDevice->instance == nullptr) {
+    auto *newInstance = new StdoutInstance{};
+    newInstance->write = stdout_instance_write;
+    newInstance->close = stdout_instance_close;
+    io_device_instance_init(device, newInstance);
+
+    *instance = newInstance;
+  } else {
+    device->incRef();
+    *instance = stdoutDevice->instance;
+  }
+
+  return 0;
+}
+
+IoDevice *createStdoutCharacterDevice() {
+  auto *newDevice = new StdoutDevice();
+  newDevice->open = stdout_device_open;
+  return newDevice;
+}