ip_port.h
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上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:2k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is MPEG4IP.
- *
- * The Initial Developer of the Original Code is Cisco Systems Inc.
- * Portions created by Cisco Systems Inc. are
- * Copyright (C) Cisco Systems Inc. 2000, 2001. All Rights Reserved.
- *
- * Contributor(s):
- * Bill May wmay@cisco.com
- */
- /*
- * ip_port.h - provides a method of getting and reserving IP ports until
- * ready to use them. Since RTP needs consecutive even-odd port numbers
- * for each stream, this will "hold" weird odd ports.
- */
- #ifndef __IP_PORT_H__
- #define __IP_PORT_H__ 1
- // CIpPort will grab the next ip port available when created (and valid).
- // It will hold on to the port until deleted.
- class CIpPort {
- public:
- CIpPort(in_port_t startport, in_port_t endport);
- ~CIpPort();
- CIpPort *get_next (void) { return m_next;};
- void set_next (CIpPort *p) { m_next = p;};
- in_port_t get_port_num (void) { return m_port_num;};
- int valid(void) { return (m_sock == -1 ? 0 : 1);};
- private:
- CIpPort *m_next;
- int m_sock;
- in_port_t m_port_num;
- };
- // C2ConsecIpPort will attempt to save 2 consecutive ip ports (starting with
- // an even port number). It needs to be passed a pointer to a list of
- // invalid ip ports. This is to keep sockets open for those ports.
- class C2ConsecIpPort {
- public:
- C2ConsecIpPort(CIpPort **global);
- ~C2ConsecIpPort(void);
- int valid (void) { return m_first != NULL && m_second != NULL; };
- in_port_t first_port (void) { return m_first->get_port_num(); };
- in_port_t second_port (void) { return m_second->get_port_num(); };
- private:
- CIpPort *m_first, *m_second;
- };
- #endif