X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/841ad0a4a06b03c349cd44e433a1d309fc038d56..7214297d16aed4c160c1cbef6b19f153ca065ab7:/src/common/stream.cpp

diff --git a/src/common/stream.cpp b/src/common/stream.cpp
index 728d50b5cf..305c8c5128 100644
--- a/src/common/stream.cpp
+++ b/src/common/stream.cpp
@@ -82,6 +82,9 @@ size_t wxStreamBuffer::WriteBack(const char *buf, size_t bufsize)
 {
   char *ptrback;
 
+  if (m_mode != read)
+    return 0;
+
   ptrback = AllocSpaceWBack(bufsize);
   if (!ptrback)
     return 0;
@@ -137,6 +140,7 @@ void wxStreamBuffer::SetBufferIO(size_t bufsize)
 void wxStreamBuffer::ResetBuffer()
 {
   m_stream->m_lasterror = wxStream_NOERROR;
+  m_stream->m_lastcount = 0;
   if (m_mode == read)
     m_buffer_pos = m_buffer_end;
   else
@@ -247,8 +251,8 @@ void wxStreamBuffer::PutChar(char c)
     return;
   }
 
-  if (!GetDataLeft() && !FlushBuffer()) {
-    CHECK_ERROR(wxStream_READ_ERR);
+  if (GetDataLeft() == 0 && !FlushBuffer()) {
+    CHECK_ERROR(wxStream_WRITE_ERR);
     return;
   }
 
@@ -281,6 +285,9 @@ size_t wxStreamBuffer::Read(void *buffer, size_t size)
 {
   wxASSERT(m_stream != NULL);
 
+  if (m_mode == write)
+    return 0;
+
   // ------------------
   // Buffering disabled
   // ------------------
@@ -330,6 +337,9 @@ size_t wxStreamBuffer::Read(wxStreamBuffer *s_buf)
   char buf[BUF_TEMP_SIZE];
   size_t s = 0, bytes_read = BUF_TEMP_SIZE;
 
+  if (m_mode == write)
+    return 0;
+
   while (bytes_read == BUF_TEMP_SIZE) {
     bytes_read = Read(buf, bytes_read);
     bytes_read = s_buf->Write(buf, bytes_read);
@@ -342,6 +352,9 @@ size_t wxStreamBuffer::Write(const void *buffer, size_t size)
 {
   wxASSERT(m_stream != NULL);
 
+  if (m_mode == read)
+    return 0;
+
   // ------------------
   // Buffering disabled
   // ------------------
@@ -388,6 +401,9 @@ size_t wxStreamBuffer::Write(wxStreamBuffer *sbuf)
   char buf[BUF_TEMP_SIZE];
   size_t s = 0, bytes_count = BUF_TEMP_SIZE, b_count2;
 
+  if (m_mode == read)
+    return 0;
+
   while (bytes_count == BUF_TEMP_SIZE) {
     b_count2 = sbuf->Read(buf, bytes_count);
     bytes_count = Write(buf, b_count2);