[NaCl SDK] ppapi_simple: Allow initial terminal size to to be set on startup.

native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc

Index: native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc
diff --git a/native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc b/native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc
index 3f59e08b48ac2a12b0b96e8e8bad81c6f0385856..d2d824b004e0d0b0bb92b0ff145f6d59db7ddae1 100644
--- a/native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc
+++ b/native_client_sdk/src/libraries/ppapi_simple/ps_instance.cc
@@ -238,6 +238,11 @@ bool PSInstance::ProcessProperties() {
       if (tty_resize)
         RegisterMessageHandler(tty_resize, MessageHandlerResizeStatic, this);
 
+      const char* tty_rows = getenv("PS_TTY_ROWS");
+      const char* tty_cols = getenv("PS_TTY_COLS");
+      if (tty_rows && tty_cols)
+         HandleResize(atoi(tty_cols), atoi(tty_rows));

[binji, 2013/11/09 00:55:08]

better error messaging here? What if only one is set? Or if the values are
non-integers?

[Sam Clegg, 2013/11/09 01:12:58]

Done.

+
       tioc_nacl_output handler;
       handler.handler = TtyOutputHandlerStatic;
       handler.user_data = this;
@@ -372,16 +377,22 @@ void PSInstance::MessageHandlerInput(const pp::Var& message) {
   }
 }
 
+void PSInstance::HandleResize(int width, int height){
+  struct winsize size;
+  memset(&size, 0, sizeof(size));
+  size.ws_col = width;
+  size.ws_row = height;
+  ioctl(tty_fd_, TIOCSWINSZ, reinterpret_cast<char*>(&size));
+}
+
 void PSInstance::MessageHandlerResize(const pp::Var& message) {
   assert(message.is_array());
   pp::VarArray array(message);
   assert(array.GetLength() == 2);
 
-  struct winsize size;
-  memset(&size, 0, sizeof(size));
-  size.ws_col = array.Get(0).AsInt();
-  size.ws_row = array.Get(1).AsInt();
-  ioctl(tty_fd_, TIOCSWINSZ, reinterpret_cast<char*>(&size));
+  int width = array.Get(0).AsInt();
+  int height = array.Get(1).AsInt();
+  HandleResize(width, height);
 }
 
 ssize_t PSInstance::TtyOutputHandlerStatic(const char* buf,