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Merge branch 'fix-luafile-transfer' into 'next'

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Prevent a single client from blocking Lua file transfers

See merge request STJr/SRB2!1435
This commit is contained in:
LJ Sonic 2021-03-31 14:28:22 -04:00
commit 933fad7702
2 changed files with 30 additions and 9 deletions
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33
src/d_netfil.c
View file

@ -562,7 +562,7 @@ static void SV_PrepareSendLuaFileToNextNode(void)
// Find a client to send the file to
for (i = 1; i < MAXNETNODES; i++)
if (nodeingame[i] && luafiletransfers->nodestatus[i] == LFTNS_WAITING) // Node waiting
if (luafiletransfers->nodestatus[i] == LFTNS_WAITING) // Node waiting
{
// Tell the client we're about to send them the file
netbuffer->packettype = PT_SENDINGLUAFILE;
@ -570,6 +570,7 @@ static void SV_PrepareSendLuaFileToNextNode(void)
I_Error("Failed to send a PT_SENDINGLUAFILE packet\n"); // !!! Todo: Handle failure a bit better lol
luafiletransfers->nodestatus[i] = LFTNS_ASKED;
luafiletransfers->nodetimeouts[i] = I_GetTime() + 30 * TICRATE;
return;
}
@ -588,7 +589,7 @@ void SV_PrepareSendLuaFile(void)
// Set status to "waiting" for everyone
for (i = 0; i < MAXNETNODES; i++)
luafiletransfers->nodestatus[i] = LFTNS_WAITING;
luafiletransfers->nodestatus[i] = (nodeingame[i] ? LFTNS_WAITING : LFTNS_NONE);
if (FIL_ReadFileOK(luafiletransfers->realfilename))
{
@ -649,12 +650,14 @@ void RemoveAllLuaFileTransfers(void)
void SV_AbortLuaFileTransfer(INT32 node)
{
if (luafiletransfers
&& (luafiletransfers->nodestatus[node] == LFTNS_ASKED
|| luafiletransfers->nodestatus[node] == LFTNS_SENDING))
if (luafiletransfers)
{
luafiletransfers->nodestatus[node] = LFTNS_WAITING;
SV_PrepareSendLuaFileToNextNode();
if (luafiletransfers->nodestatus[node] == LFTNS_ASKED
|| luafiletransfers->nodestatus[node] == LFTNS_SENDING)
{
SV_PrepareSendLuaFileToNextNode();
}
luafiletransfers->nodestatus[node] = LFTNS_NONE;
}
}
@ -928,6 +931,22 @@ void FileSendTicker(void)
filetx_t *f;
INT32 packetsent, ram, i, j;
// If someone is taking too long to download, kick them with a timeout
// to prevent blocking the rest of the server...
if (luafiletransfers)
{
for (i = 1; i < MAXNETNODES; i++)
{
luafiletransfernodestatus_t status = luafiletransfers->nodestatus[i];
if (status != LFTNS_NONE && status != LFTNS_WAITING && status != LFTNS_SENT
&& I_GetTime() > luafiletransfers->nodetimeouts[i])
{
Net_ConnectionTimeout(i);
}
}
}
if (!filestosend) // No file to send
return;

6
src/d_netfil.h
View file

@ -85,10 +85,11 @@ boolean PT_RequestFile(INT32 node);
typedef enum
{
LFTNS_NONE, // This node is not connected
LFTNS_WAITING, // This node is waiting for the server to send the file
LFTNS_ASKED, // The server has told the node they're ready to send the file
LFTNS_ASKED, // The server has told the node they're ready to send the file
LFTNS_SENDING, // The server is sending the file to this node
LFTNS_SENT // The node already has the file
LFTNS_SENT // The node already has the file
} luafiletransfernodestatus_t;
typedef struct luafiletransfer_s
@ -99,6 +100,7 @@ typedef struct luafiletransfer_s
INT32 id; // Callback ID
boolean ongoing;
luafiletransfernodestatus_t nodestatus[MAXNETNODES];
tic_t nodetimeouts[MAXNETNODES];
struct luafiletransfer_s *next;
} luafiletransfer_t;