467e5fb162
Handling clean exit of the renderer when stopOpenGLRenderer is called. This is done by openning a connection to the renderer and flag that it should exit. Added 'clientFlags' field which must be send after every connection is made to the renderer for this purpose. The server will wait for running rendering threads to exit and then will close all EGL/GL resources and will exit. The stopOpenGLRenderer will return only when the renderer has exited. Change-Id: I8272b8ea59d5fc78453bb7bd2d25908068869fa7
101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __IO_STREAM_H__
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#define __IO_STREAM_H__
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#include <stdlib.h>
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#include <stdio.h>
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#include "ErrorLog.h"
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class IOStream {
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public:
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IOStream(size_t bufSize) {
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m_buf = NULL;
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m_bufsize = bufSize;
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m_free = 0;
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}
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virtual void *allocBuffer(size_t minSize) = 0;
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virtual int commitBuffer(size_t size) = 0;
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virtual const unsigned char *readFully( void *buf, size_t len) = 0;
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virtual const unsigned char *read( void *buf, size_t *inout_len) = 0;
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virtual ~IOStream() {
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// NOTE: m_buf is 'owned' by the child class thus we expect it to be released by it
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}
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unsigned char *alloc(size_t len) {
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if (m_buf && len > m_free) {
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if (flush() < 0) {
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ERR("Failed to flush in alloc\n");
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return NULL; // we failed to flush so something is wrong
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}
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}
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if (!m_buf || len > m_bufsize) {
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int allocLen = m_bufsize < len ? len : m_bufsize;
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m_buf = (unsigned char *)allocBuffer(allocLen);
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if (!m_buf) {
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ERR("Alloc (%u bytes) failed\n", allocLen);
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return NULL;
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}
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m_bufsize = m_free = allocLen;
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}
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unsigned char *ptr;
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ptr = m_buf + (m_bufsize - m_free);
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m_free -= len;
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return ptr;
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}
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int flush() {
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if (!m_buf || m_free == m_bufsize) return 0;
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int stat = commitBuffer(m_bufsize - m_free);
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m_buf = NULL;
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m_free = 0;
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return stat;
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}
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const unsigned char *readback(void *buf, size_t len) {
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flush();
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return readFully(buf, len);
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}
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private:
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unsigned char *m_buf;
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size_t m_bufsize;
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size_t m_free;
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};
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//
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// When a client opens a connection to the renderer, it should
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// send unsigned int value indicating the "clientFlags".
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// The following are the bitmask of the clientFlags.
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// currently only one bit is used which flags the server
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// it should exit.
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//
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#define IOSTREAM_CLIENT_EXIT_SERVER 1
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#endif
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