ADD: [droid] capture stderr/stdout to logcat / thanks to @koying

1 files changed, 44 insertions, 0 deletions

diff --git a/xbmc/platform/android/activity/android_main.cpp b/xbmc/platform/android/activity/android_main.cpp
index 97451971b2..3b77b22f88 100644
--- a/xbmc/platform/android/activity/android_main.cpp
+++ b/xbmc/platform/android/activity/android_main.cpp
@@ -31,6 +31,48 @@
 
 #include "platform/android/activity/JNIMainActivity.h"
 
+
+// redirect stdout / stderr to logcat
+// https://codelab.wordpress.com/2014/11/03/how-to-use-standard-output-streams-for-logging-in-android-apps/
+static int pfd[2];
+static pthread_t thr;
+static const char *tag = "myapp";
+
+static void *thread_logger(void*)
+{
+  ssize_t rdsz;
+  char buf[128];
+  while((rdsz = read(pfd[0], buf, sizeof buf - 1)) > 0)
+  {
+    if(buf[rdsz - 1] == '\n')
+      --rdsz;
+    buf[rdsz] = 0;  /* add null-terminator */
+    __android_log_write(ANDROID_LOG_DEBUG, tag, buf);
+  }
+  return 0;
+}
+
+int start_logger(const char *app_name)
+{
+  tag = app_name;
+
+  /* make stdout line-buffered and stderr unbuffered */
+  setvbuf(stdout, 0, _IOLBF, 0);
+  setvbuf(stderr, 0, _IONBF, 0);
+
+  /* create the pipe and redirect stdout and stderr */
+  pipe(pfd);
+  dup2(pfd[1], 1);
+  dup2(pfd[1], 2);
+
+  /* spawn the logging thread */
+  if(pthread_create(&thr, 0, thread_logger, 0) == -1)
+    return -1;
+  pthread_detach(thr);
+  return 0;
+}
+
+
 // copied from new android_native_app_glue.c
 static void process_input(struct android_app* app, struct android_poll_source* source) {
     AInputEvent* event = NULL;
@@ -65,6 +107,8 @@ extern void android_main(struct android_app* state)
     CXBMCApp xbmcApp(state->activity);
     if (xbmcApp.isValid())
     {
+      start_logger("Kodi");
+
       IInputHandler inputHandler;
       eventLoop.run(xbmcApp, inputHandler);
     }