From fba844dd98c3d9dde3a522cacfb5cff24f0a3943 Mon Sep 17 00:00:00 2001
From: xuxiuxi <xuxiuxi@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期六, 01 四月 2017 14:16:59 +0800
Subject: [PATCH]
---
VisitFace/RtspNativeCodec/app/libs/live555/include/UsageEnvironment/UsageEnvironment.hh | 172 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 172 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/UsageEnvironment/UsageEnvironment.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/UsageEnvironment/UsageEnvironment.hh
new file mode 100644
index 0000000..3ca78dc
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/UsageEnvironment/UsageEnvironment.hh
@@ -0,0 +1,172 @@
+/**********
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the
+Free Software Foundation; either version 3 of the License, or (at your
+option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
+
+This library 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 Lesser General Public License for
+more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+**********/
+// Copyright (c) 1996-2017 Live Networks, Inc. All rights reserved.
+// Usage Environment
+// C++ header
+
+#ifndef _USAGE_ENVIRONMENT_HH
+#define _USAGE_ENVIRONMENT_HH
+
+#ifndef _USAGEENVIRONMENT_VERSION_HH
+#include "UsageEnvironment_version.hh"
+#endif
+
+#ifndef _NETCOMMON_H
+#include "NetCommon.h"
+#endif
+
+#ifndef _BOOLEAN_HH
+#include "Boolean.hh"
+#endif
+
+#ifndef _STRDUP_HH
+// "strDup()" is used often, so include this here, so everyone gets it:
+#include "strDup.hh"
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifdef __BORLANDC__
+#define _setmode setmode
+#define _O_BINARY O_BINARY
+#endif
+
+class TaskScheduler; // forward
+
+// An abstract base class, subclassed for each use of the library
+
+class UsageEnvironment {
+public:
+ Boolean reclaim();
+ // returns True iff we were actually able to delete our object
+
+ // task scheduler:
+ TaskScheduler& taskScheduler() const {return fScheduler;}
+
+ // result message handling:
+ typedef char const* MsgString;
+ virtual MsgString getResultMsg() const = 0;
+
+ virtual void setResultMsg(MsgString msg) = 0;
+ virtual void setResultMsg(MsgString msg1, MsgString msg2) = 0;
+ virtual void setResultMsg(MsgString msg1, MsgString msg2, MsgString msg3) = 0;
+ virtual void setResultErrMsg(MsgString msg, int err = 0) = 0;
+ // like setResultMsg(), except that an 'errno' message is appended. (If "err == 0", the "getErrno()" code is used instead.)
+
+ virtual void appendToResultMsg(MsgString msg) = 0;
+
+ virtual void reportBackgroundError() = 0;
+ // used to report a (previously set) error message within
+ // a background event
+
+ virtual void internalError(); // used to 'handle' a 'should not occur'-type error condition within the library.
+
+ // 'errno'
+ virtual int getErrno() const = 0;
+
+ // 'console' output:
+ virtual UsageEnvironment& operator<<(char const* str) = 0;
+ virtual UsageEnvironment& operator<<(int i) = 0;
+ virtual UsageEnvironment& operator<<(unsigned u) = 0;
+ virtual UsageEnvironment& operator<<(double d) = 0;
+ virtual UsageEnvironment& operator<<(void* p) = 0;
+
+ // a pointer to additional, optional, client-specific state
+ void* liveMediaPriv;
+ void* groupsockPriv;
+
+protected:
+ UsageEnvironment(TaskScheduler& scheduler); // abstract base class
+ virtual ~UsageEnvironment(); // we are deleted only by reclaim()
+
+private:
+ TaskScheduler& fScheduler;
+};
+
+
+typedef void TaskFunc(void* clientData);
+typedef void* TaskToken;
+typedef u_int32_t EventTriggerId;
+
+class TaskScheduler {
+public:
+ virtual ~TaskScheduler();
+
+ virtual TaskToken scheduleDelayedTask(int64_t microseconds, TaskFunc* proc,
+ void* clientData) = 0;
+ // Schedules a task to occur (after a delay) when we next
+ // reach a scheduling point.
+ // (Does not delay if "microseconds" <= 0)
+ // Returns a token that can be used in a subsequent call to
+ // unscheduleDelayedTask() or rescheduleDelayedTask()
+ // (but only if the task has not yet occurred).
+
+ virtual void unscheduleDelayedTask(TaskToken& prevTask) = 0;
+ // (Has no effect if "prevTask" == NULL)
+ // Sets "prevTask" to NULL afterwards.
+ // Note: This MUST NOT be called if the scheduled task has already occurred.
+
+ virtual void rescheduleDelayedTask(TaskToken& task,
+ int64_t microseconds, TaskFunc* proc,
+ void* clientData);
+ // Combines "unscheduleDelayedTask()" with "scheduleDelayedTask()"
+ // (setting "task" to the new task token).
+ // Note: This MUST NOT be called if the scheduled task has already occurred.
+
+ // For handling socket operations in the background (from the event loop):
+ typedef void BackgroundHandlerProc(void* clientData, int mask);
+ // Possible bits to set in "mask". (These are deliberately defined
+ // the same as those in Tcl, to make a Tcl-based subclass easy.)
+ #define SOCKET_READABLE (1<<1)
+ #define SOCKET_WRITABLE (1<<2)
+ #define SOCKET_EXCEPTION (1<<3)
+ virtual void setBackgroundHandling(int socketNum, int conditionSet, BackgroundHandlerProc* handlerProc, void* clientData) = 0;
+ void disableBackgroundHandling(int socketNum) { setBackgroundHandling(socketNum, 0, NULL, NULL); }
+ virtual void moveSocketHandling(int oldSocketNum, int newSocketNum) = 0;
+ // Changes any socket handling for "oldSocketNum" so that occurs with "newSocketNum" instead.
+
+ virtual void doEventLoop(char volatile* watchVariable = NULL) = 0;
+ // Causes further execution to take place within the event loop.
+ // Delayed tasks, background I/O handling, and other events are handled, sequentially (as a single thread of control).
+ // (If "watchVariable" is not NULL, then we return from this routine when *watchVariable != 0)
+
+ virtual EventTriggerId createEventTrigger(TaskFunc* eventHandlerProc) = 0;
+ // Creates a 'trigger' for an event, which - if it occurs - will be handled (from the event loop) using "eventHandlerProc".
+ // (Returns 0 iff no such trigger can be created (e.g., because of implementation limits on the number of triggers).)
+ virtual void deleteEventTrigger(EventTriggerId eventTriggerId) = 0;
+
+ virtual void triggerEvent(EventTriggerId eventTriggerId, void* clientData = NULL) = 0;
+ // Causes the (previously-registered) handler function for the specified event to be handled (from the event loop).
+ // The handler function is called with "clientData" as parameter.
+ // Note: This function (unlike other library functions) may be called from an external thread
+ // - to signal an external event. (However, "triggerEvent()" should not be called with the
+ // same 'event trigger id' from different threads.)
+
+ // The following two functions are deprecated, and are provided for backwards-compatibility only:
+ void turnOnBackgroundReadHandling(int socketNum, BackgroundHandlerProc* handlerProc, void* clientData) {
+ setBackgroundHandling(socketNum, SOCKET_READABLE, handlerProc, clientData);
+ }
+ void turnOffBackgroundReadHandling(int socketNum) { disableBackgroundHandling(socketNum); }
+
+ virtual void internalError(); // used to 'handle' a 'should not occur'-type error condition within the library.
+
+protected:
+ TaskScheduler(); // abstract base class
+};
+
+#endif
--
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