From 9a0b88bf7777c153dc46ace22db74ef24d51583a Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Tue, 29 Apr 2008 12:55:25 +0000
Subject: update release date to actual date

git-svn-id: svn+q:///qpdf/trunk@599 71b93d88-0707-0410-a8cf-f5a4172ac649
---
 libqpdf/Pl_Buffer.cc | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 libqpdf/Pl_Buffer.cc

(limited to 'libqpdf/Pl_Buffer.cc')

diff --git a/libqpdf/Pl_Buffer.cc b/libqpdf/Pl_Buffer.cc
new file mode 100644
index 00000000..185cf636
--- /dev/null
+++ b/libqpdf/Pl_Buffer.cc
@@ -0,0 +1,67 @@
+
+#include <qpdf/Pl_Buffer.hh>
+#include <qpdf/QEXC.hh>
+#include <assert.h>
+
+Pl_Buffer::Pl_Buffer(char const* identifier, Pipeline* next) :
+    Pipeline(identifier, next),
+    ready(false),
+    total_size(0)
+{
+}
+
+Pl_Buffer::~Pl_Buffer()
+{
+}
+
+void
+Pl_Buffer::write(unsigned char* buf, int len)
+{
+    Buffer* b = new Buffer(len);
+    memcpy(b->getBuffer(), buf, len);
+    this->data.push_back(b);
+    this->ready = false;
+    this->total_size += len;
+
+    if (getNext(true))
+    {
+	getNext()->write(buf, len);
+    }
+}
+
+void
+Pl_Buffer::finish()
+{
+    this->ready = true;
+    if (getNext(true))
+    {
+	getNext()->finish();
+    }
+}
+
+Buffer*
+Pl_Buffer::getBuffer()
+{
+    if (! this->ready)
+    {
+	throw QEXC::Internal("Pl_Buffer::getBuffer() called when not ready");
+    }
+
+    Buffer* b = new Buffer(this->total_size);
+    unsigned char* p = b->getBuffer();
+    while (! this->data.empty())
+    {
+	PointerHolder<Buffer> bph = this->data.front();
+	this->data.pop_front();
+	Buffer* bp = bph.getPointer();
+	size_t bytes = bp->getSize();
+	memcpy(p, bp->getBuffer(), bytes);
+	p += bytes;
+	this->total_size -= bytes;
+    }
+
+    assert(this->total_size == 0);
+    this->ready = false;
+
+    return b;
+}
-- 
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