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Code Issues Releases Wiki Activity

Moved handling remote timers into cSVDRPClientHandler::ProcessConnections()

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This commit is contained in:
Klaus Schmidinger 2018-02-25 13:26:17 +01:00
parent bbbc36a1e6
commit 6600478675
6 changed files with 87 additions and 128 deletions
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3
HISTORY
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@ -9162,7 +9162,7 @@ Video Disk Recorder Revision History
a subdirectory.
- SVDRP peering can now be limited to the default SVDRP host (see MANUAL for details).
2018-02-20: Version 2.3.9
2018-02-25: Version 2.3.9
- Updated the Italian OSD texts (thanks to Diego Pierotto).
- Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
@ -9283,3 +9283,4 @@ Video Disk Recorder Revision History
SVDRP command CONN instead of using the UDP port with the server's address.
This change requires that all VDRs that shall take part in a peer-to-peer network need
to be updated to this version.
- Moved handling remote timers into cSVDRPClientHandler::ProcessConnections().

4
menu.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: menu.c 4.61 2018/02/13 09:25:43 kls Exp $
* $Id: menu.c 4.62 2018/02/25 13:07:09 kls Exp $
*/
#include "menu.h"
@ -4184,7 +4184,7 @@ eOSState cMenuSetupMisc::ProcessKey(eKeys Key)
else {
LOCK_TIMERS_WRITE;
Timers->SetExplicitModify();
if (Timers->DelRemoteTimers())
if (Timers->StoreRemoteTimers(NULL, NULL))
Timers->SetModified();
}
}

70
svdrp.c
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@ -10,7 +10,7 @@
* and interact with the Video Disk Recorder - or write a full featured
* graphical interface that sits on top of an SVDRP connection.
*
* $Id: svdrp.c 4.27 2018/02/20 13:28:04 kls Exp $
* $Id: svdrp.c 4.28 2018/02/25 13:26:17 kls Exp $
*/
#include "svdrp.h"
@ -317,6 +317,7 @@ private:
cFile file;
int fetchFlags;
bool connected;
bool Send(const char *Command);
void Close(void);
public:
cSVDRPClient(const char *Address, int Port, const char *ServerName, int Timeout);
@ -324,12 +325,12 @@ public:
const char *ServerName(void) const { return serverName; }
const char *Connection(void) const { return serverIpAddress.Connection(); }
bool HasAddress(const char *Address, int Port) const;
bool Send(const char *Command);
bool Process(cStringList *Response = NULL);
bool Execute(const char *Command, cStringList *Response = NULL);
bool Connected(void) const { return connected; }
void SetFetchFlag(eSvdrpFetchFlags Flag);
bool HasFetchFlag(eSvdrpFetchFlags Flag);
bool GetRemoteTimers(cStringList &Response);
};
static cPoller SVDRPClientPoller;
@ -365,9 +366,6 @@ void cSVDRPClient::Close(void)
SVDRPClientPoller.Del(file, false);
file.Close();
socket.Close();
LOCK_TIMERS_WRITE;
if (Timers)
Timers->DelRemoteTimers(serverName);
}
}
@ -483,6 +481,14 @@ bool cSVDRPClient::HasFetchFlag(eSvdrpFetchFlags Flag)
return Result;
}
bool cSVDRPClient::GetRemoteTimers(cStringList &Response)
{
if (HasFetchFlag(sffTimers))
return Execute("LSTT ID", &Response);
return false;
}
// --- cSVDRPServerParams ----------------------------------------------------
class cSVDRPServerParams {
@ -554,20 +560,21 @@ private:
cMutex mutex;
int tcpPort;
cSocket udpSocket;
cStateKey timersStateKey;
cVector<cSVDRPClient *> clientConnections;
void SendDiscover(void);
void HandleClientConnection(void);
void ProcessConnections(void);
cSVDRPClient *GetClientForServer(const char *ServerName);
protected:
virtual void Action(void);
public:
cSVDRPClientHandler(int TcpPort, int UdpPort);
virtual ~cSVDRPClientHandler();
void SendDiscover(void);
void AddClient(cSVDRPServerParams &ServerParams, const char *IpAddress);
bool Execute(const char *ServerName, const char *Command, cStringList *Response = NULL);
bool GetServerNames(cStringList *ServerNames, eSvdrpFetchFlags FetchFlags = sffNone);
bool TriggerFetchingTimers(const char *ServerName);
cSVDRPClient *GetClientForServer(const char *ServerName);
};
static cSVDRPClientHandler *SVDRPClientHandler = NULL;
@ -575,6 +582,7 @@ static cSVDRPClientHandler *SVDRPClientHandler = NULL;
cSVDRPClientHandler::cSVDRPClientHandler(int TcpPort, int UdpPort)
:cThread("SVDRP client handler", true)
,udpSocket(UdpPort, false)
,timersStateKey(true)
{
tcpPort = TcpPort;
}
@ -588,7 +596,6 @@ cSVDRPClientHandler::~cSVDRPClientHandler()
cSVDRPClient *cSVDRPClientHandler::GetClientForServer(const char *ServerName)
{
cMutexLock MutexLock(&mutex);
for (int i = 0; i < clientConnections.Size(); i++) {
if (strcmp(clientConnections[i]->ServerName(), ServerName) == 0)
return clientConnections[i];
@ -598,17 +605,36 @@ cSVDRPClient *cSVDRPClientHandler::GetClientForServer(const char *ServerName)
void cSVDRPClientHandler::SendDiscover(void)
{
cMutexLock MutexLock(&mutex);
cString Dgram = cString::sprintf("SVDRP:discover name:%s port:%d vdrversion:%d apiversion:%d timeout:%d%s", Setup.SVDRPHostName, tcpPort, VDRVERSNUM, APIVERSNUM, Setup.SVDRPTimeout, (Setup.SVDRPPeering == spmOnly && *Setup.SVDRPDefaultHost) ? *cString::sprintf(" host:%s", Setup.SVDRPDefaultHost) : "");
udpSocket.SendDgram(Dgram, udpSocket.Port());
}
void cSVDRPClientHandler::ProcessConnections(void)
{
cMutexLock MutexLock(&mutex);
cString PollTimersCmd;
if (cTimers::GetTimersRead(timersStateKey)) {
PollTimersCmd = cString::sprintf("POLL %s TIMERS", Setup.SVDRPHostName);
timersStateKey.Remove();
}
for (int i = 0; i < clientConnections.Size(); i++) {
if (!clientConnections[i]->Process()) {
delete clientConnections[i];
cSVDRPClient *Client = clientConnections[i];
if (Client->Process()) {
cStringList RemoteTimers;
if (Client->GetRemoteTimers(RemoteTimers)) {
cTimers *Timers = cTimers::GetTimersWrite(timersStateKey);
bool TimersModified = Timers->StoreRemoteTimers(Client->ServerName(), &RemoteTimers);
timersStateKey.Remove(TimersModified);
}
if (*PollTimersCmd) {
if (!Client->Execute(PollTimersCmd))
esyslog("ERROR: can't send '%s' to '%s'", *PollTimersCmd, Client->ServerName());
}
}
else {
cTimers *Timers = cTimers::GetTimersWrite(timersStateKey);
bool TimersModified = Timers->StoreRemoteTimers(Client->ServerName(), NULL);
timersStateKey.Remove(TimersModified);
delete Client;
clientConnections.Remove(i);
i--;
}
@ -617,12 +643,11 @@ void cSVDRPClientHandler::ProcessConnections(void)
void cSVDRPClientHandler::AddClient(cSVDRPServerParams &ServerParams, const char *IpAddress)
{
cMutexLock MutexLock(&mutex);
for (int i = 0; i < clientConnections.Size(); i++) {
if (clientConnections[i]->HasAddress(IpAddress, ServerParams.Port())) {
dsyslog("SVDRP %s < %s connection to '%s' already exists", Setup.SVDRPHostName, clientConnections[i]->Connection(), clientConnections[i]->ServerName());
if (clientConnections[i]->HasAddress(IpAddress, ServerParams.Port()))
return;
}
}
if (Setup.SVDRPPeering == spmOnly && strcmp(ServerParams.Name(), Setup.SVDRPDefaultHost) != 0)
return; // we only want to peer with the default host, but this isn't the default host
if (ServerParams.Host() && strcmp(ServerParams.Host(), Setup.SVDRPHostName) != 0)
@ -1294,7 +1319,6 @@ void cSVDRPServer::CmdCONN(const char *Option)
if (ServerParams.Ok()) {
clientName = ServerParams.Name();
Reply(250, "OK"); // must finish this transaction before creating the new client
if (!SVDRPClientHandler->GetClientForServer(ServerParams.Name()))
SVDRPClientHandler->AddClient(ServerParams, clientIpAddress.Address());
}
else
@ -2601,7 +2625,6 @@ void SetSVDRPGrabImageDir(const char *GrabImageDir)
class cSVDRPServerHandler : public cThread {
private:
cMutex mutex;
bool ready;
cSocket tcpSocket;
cVector<cSVDRPServer *> serverConnections;
@ -2613,7 +2636,6 @@ public:
cSVDRPServerHandler(int TcpPort);
virtual ~cSVDRPServerHandler();
void WaitUntilReady(void);
cSVDRPServer *GetServerForClient(const char *ClientName);
};
static cSVDRPServerHandler *SVDRPServerHandler = NULL;
@ -2641,7 +2663,6 @@ void cSVDRPServerHandler::WaitUntilReady(void)
void cSVDRPServerHandler::ProcessConnections(void)
{
cMutexLock MutexLock(&mutex);
for (int i = 0; i < serverConnections.Size(); i++) {
if (!serverConnections[i]->Process()) {
delete serverConnections[i];
@ -2665,7 +2686,6 @@ void cSVDRPServerHandler::Action(void)
ready = true;
while (Running()) {
SVDRPServerPoller.Poll(1000);
cMutexLock MutexLock(&mutex);
HandleServerConnection();
ProcessConnections();
}
@ -2674,16 +2694,6 @@ void cSVDRPServerHandler::Action(void)
}
}
cSVDRPServer *cSVDRPServerHandler::GetServerForClient(const char *ClientName)
{
cMutexLock MutexLock(&mutex);
for (int i = 0; i < serverConnections.Size(); i++) {
if (serverConnections[i]->ClientName() && strcmp(serverConnections[i]->ClientName(), ClientName) == 0)
return serverConnections[i];
}
return NULL;
}
// --- SVDRP Handler ---------------------------------------------------------
static cMutex SVDRPHandlerMutex;

64
timers.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: timers.c 4.14 2017/11/12 13:01:22 kls Exp $
* $Id: timers.c 4.15 2018/02/25 13:05:03 kls Exp $
*/
#include "timers.h"
@ -898,15 +898,24 @@ bool cTimers::DeleteExpired(void)
return TimersModified;
}
bool cTimers::GetRemoteTimers(const char *ServerName)
bool cTimers::StoreRemoteTimers(const char *ServerName, const cStringList *RemoteTimers)
{
//TODO handle only new/deleted/modified timers?
bool Result = false;
if (ServerName) {
Result = DelRemoteTimers(ServerName);
cStringList Response;
if (ExecSVDRPCommand(ServerName, "LSTT ID", &Response)) {
for (int i = 0; i < Response.Size(); i++) {
const char *s = Response[i];
// Delete old remote timers:
cTimer *Timer = First();
while (Timer) {
cTimer *t = Next(Timer);
if (Timer->Remote() && (!ServerName || strcmp(Timer->Remote(), ServerName) == 0)) {
Del(Timer);
Result = true;
}
Timer = t;
}
// Add new remote timers:
if (ServerName && RemoteTimers) {
for (int i = 0; i < RemoteTimers->Size(); i++) {
const char *s = (*RemoteTimers)[i];
int Code = SVDRPCode(s);
if (Code == 250) {
if (const char *v = SVDRPValue(s)) {
@ -929,49 +938,10 @@ bool cTimers::GetRemoteTimers(const char *ServerName)
else if (Code != 550)
esyslog("ERROR: %s: %s", ServerName, s);
}
return Result;
}
}
else {
cStringList ServerNames;
if (GetSVDRPServerNames(&ServerNames, sffTimers)) {
for (int i = 0; i < ServerNames.Size(); i++)
Result |= GetRemoteTimers(ServerNames[i]);
}
}
return Result;
}
bool cTimers::DelRemoteTimers(const char *ServerName)
{
bool Deleted = false;
cTimer *Timer = First();
while (Timer) {
cTimer *t = Next(Timer);
if (Timer->Remote() && (!ServerName || strcmp(Timer->Remote(), ServerName) == 0)) {
Del(Timer);
Deleted = true;
}
Timer = t;
}
return Deleted;
}
void cTimers::TriggerRemoteTimerPoll(const char *ServerName)
{
if (ServerName) {
if (!ExecSVDRPCommand(ServerName, cString::sprintf("POLL %s TIMERS", Setup.SVDRPHostName)))
esyslog("ERROR: can't send 'POLL %s TIMERS' to '%s'", Setup.SVDRPHostName, ServerName);
}
else {
cStringList ServerNames;
if (GetSVDRPServerNames(&ServerNames)) {
for (int i = 0; i < ServerNames.Size(); i++)
TriggerRemoteTimerPoll(ServerNames[i]);
}
}
}
static bool RemoteTimerError(const cTimer *Timer, cString *Msg)
{
if (Msg)

21
timers.h
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: timers.h 4.9 2017/10/31 09:47:14 kls Exp $
* $Id: timers.h 4.10 2018/02/25 12:54:55 kls Exp $
*/
#ifndef __TIMERS_H
@ -185,21 +185,12 @@ public:
void Add(cTimer *Timer, cTimer *After = NULL);
void Ins(cTimer *Timer, cTimer *Before = NULL);
void Del(cTimer *Timer, bool DeleteObject = true);
bool GetRemoteTimers(const char *ServerName = NULL);
///< Gets the timers from the given remote machine and adds them to this
///< list. If no ServerName is given, all timers from all known remote
///< machines will be fetched. This function calls DelRemoteTimers() with
///< the given ServerName first.
bool StoreRemoteTimers(const char *ServerName = NULL, const cStringList *RemoteTimers = NULL);
///< Stores the given list of RemoteTimers, which come from the VDR ServerName, in
///< this list. If no ServerName is given, all remote timers from all peer machines
///< will be removed from this list. If no RemoteTimers are given, only the remote
///< timers from ServerName will be removed from this list.
///< Returns true if any remote timers have been added or deleted
bool DelRemoteTimers(const char *ServerName = NULL);
///< Deletes all timers of the given remote machine from this list (leaves
///< them untouched on the remote machine). If no ServerName is given, the
///< timers of all remote machines will be deleted from the list.
///< Returns true if any remote timers have been deleted.
void TriggerRemoteTimerPoll(const char *ServerName = NULL);
///< Sends an SVDRP POLL command to the given remote machine.
///< If no ServerName is given, the POLL command will be sent to all
///< known remote machines.
};
bool HandleRemoteTimerModifications(cTimer *NewTimer, cTimer *OldTimer = NULL, cString *Msg = NULL);

21
vdr.c
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@ -22,7 +22,7 @@
*
* The project's page is at http://www.tvdr.de
*
* $Id: vdr.c 4.21 2017/11/09 16:15:34 kls Exp $
* $Id: vdr.c 4.22 2018/02/25 13:07:09 kls Exp $
*/
#include <getopt.h>
@ -1081,25 +1081,18 @@ int main(int argc, char *argv[])
{
// Timers and Recordings:
bool TimersModified = false;
bool TriggerRemoteTimerPoll = false;
static cStateKey TimersStateKey(true);
if (cTimers::GetTimersRead(TimersStateKey)) {
TriggerRemoteTimerPoll = true;
if (cTimers::GetTimersRead(TimersStateKey))
TimersStateKey.Remove();
}
cTimers *Timers = cTimers::GetTimersWrite(TimersStateKey);
// Get remote timers:
TimersModified |= Timers->GetRemoteTimers();
// Assign events to timers:
static cStateKey SchedulesStateKey;
if (const cSchedules *Schedules = cSchedules::GetSchedulesRead(SchedulesStateKey))
TimersModified |= Timers->SetEvents(Schedules);
// Must do all following calls with the exact same time!
// Process ongoing recordings:
if (cRecordControls::Process(Timers, Now)) {
if (cRecordControls::Process(Timers, Now))
TimersModified = true;
TriggerRemoteTimerPoll = true;
}
// Must keep the lock on the schedules until after processing the record
// controls, in order to avoid short interrupts in case the current event
// is replaced by a new one (which some broadcasters do, instead of just
@ -1113,7 +1106,6 @@ int main(int argc, char *argv[])
else
LastTimerChannel = Timer->Channel()->Number();
TimersModified = true;
TriggerRemoteTimerPoll = true;
}
// Make sure timers "see" their channel early enough:
static time_t LastTimerCheck = 0;
@ -1168,13 +1160,8 @@ int main(int argc, char *argv[])
LastTimerCheck = Now;
}
// Delete expired timers:
if (Timers->DeleteExpired()) {
if (Timers->DeleteExpired())
TimersModified = true;
TriggerRemoteTimerPoll = true;
}
// Trigger remote timer polls:
if (TriggerRemoteTimerPoll)
Timers->TriggerRemoteTimerPoll();
// Make sure there is enough free disk space for ongoing recordings:
AssertFreeDiskSpace(Timers->GetMaxPriority());
TimersStateKey.Remove(TimersModified);