handy little class for managing buffers moved to mir_core

3 files changed, 89 insertions, 0 deletions

diff --git a/src/mir_core/src/binbuffer.cpp b/src/mir_core/src/binbuffer.cpp
new file mode 100644
index 0000000000..fe6326077a
--- /dev/null
+++ b/src/mir_core/src/binbuffer.cpp
@@ -0,0 +1,71 @@
+/*
+Copyright (C) 2012-17 Miranda NG team (http://miranda-ng.org)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation version 2
+of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "stdafx.h"
+
+MBinBuffer::MBinBuffer() :
+	m_buf(NULL),
+	m_len(0)
+{
+}
+
+MBinBuffer::~MBinBuffer()
+{
+	mir_free(m_buf);
+}
+
+void MBinBuffer::append(void *pBuf, size_t bufLen)
+{
+	if (pBuf == NULL || bufLen == 0)
+		return;
+
+	m_buf = (char*)mir_realloc(m_buf, bufLen + m_len);
+	if (m_buf) {
+		memcpy(m_buf + m_len, pBuf, bufLen);
+		m_len += bufLen;
+	}
+	else m_len = 0;
+}
+
+void MBinBuffer::appendBefore(void *pBuf, size_t bufLen)
+{
+	if (pBuf == NULL || bufLen == 0)
+		return;
+
+	m_buf = (char*)mir_realloc(m_buf, bufLen + m_len);
+	if (m_buf) {
+		memmove(m_buf + bufLen, m_buf, m_len);
+		memcpy(m_buf, pBuf, bufLen);
+		m_len += bufLen;
+	}
+	else m_len = 0;
+}
+
+void MBinBuffer::remove(size_t sz)
+{
+	if (sz > m_len)
+		m_len = sz;
+
+	if (m_len == sz) {
+		m_len = 0;
+		mir_free(m_buf); m_buf = NULL;
+	}
+	else {
+		memmove(m_buf, m_buf + sz, m_len - sz);
+		m_len -= sz;
+	}
+}
diff --git a/src/mir_core/src/mir_core.def b/src/mir_core/src/mir_core.def
index bb24cd6108..bbe3628c5d 100644
--- a/src/mir_core/src/mir_core.def
+++ b/src/mir_core/src/mir_core.def
@@ -1046,3 +1046,12 @@ CallFunctionSync @1170
 ?GetNthPage@CCtrlPages@@QAEPAVCDlgBase@@H@Z @1203 NONAME

 ?GetItemPage@CCtrlPages@@AAEPAUTPageInfo@1@H@Z @1204 NONAME

 ?RemovePage@CCtrlPages@@QAEXH@Z @1205 NONAME

+??0MBinBuffer@@QAE@XZ @1206 NONAME

+??1MBinBuffer@@QAE@XZ @1207 NONAME

+??4MBinBuffer@@QAEAAV0@ABV0@@Z @1208 NONAME

+?append@MBinBuffer@@QAEXPAXI@Z @1209 NONAME

+?appendBefore@MBinBuffer@@QAEXPAXI@Z @1210 NONAME

+?data@MBinBuffer@@QBEPADXZ @1211 NONAME

+?isEmpty@MBinBuffer@@QBE_NXZ @1212 NONAME

+?length@MBinBuffer@@QBEIXZ @1213 NONAME

+?remove@MBinBuffer@@QAEXI@Z @1214 NONAME

diff --git a/src/mir_core/src/mir_core64.def b/src/mir_core/src/mir_core64.def
index e8a9e2d9cb..7ce3f990e3 100644
--- a/src/mir_core/src/mir_core64.def
+++ b/src/mir_core/src/mir_core64.def
@@ -1046,3 +1046,12 @@ CallFunctionSync @1170
 ?GetNthPage@CCtrlPages@@QEAAPEAVCDlgBase@@H@Z @1203 NONAME

 ?GetItemPage@CCtrlPages@@AEAAPEAUTPageInfo@1@H@Z @1204 NONAME

 ?RemovePage@CCtrlPages@@QEAAXH@Z @1205 NONAME

+??0MBinBuffer@@QEAA@XZ @1206 NONAME

+??1MBinBuffer@@QEAA@XZ @1207 NONAME

+??4MBinBuffer@@QEAAAEAV0@AEBV0@@Z @1208 NONAME

+?append@MBinBuffer@@QEAAXPEAX_K@Z @1209 NONAME

+?appendBefore@MBinBuffer@@QEAAXPEAX_K@Z @1210 NONAME

+?data@MBinBuffer@@QEBAPEADXZ @1211 NONAME

+?isEmpty@MBinBuffer@@QEBA_NXZ @1212 NONAME

+?length@MBinBuffer@@QEBA_KXZ @1213 NONAME

+?remove@MBinBuffer@@QEAAX_K@Z @1214 NONAME