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Abort downloads if a server hasn't a file over UDP.

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This is a special case, the bug was already present in Vanilla Q2: If a
server is offering assets for download but is missing some files the
USP download code runs in an endless loop. CL_ParseDownload() detects
that something is wrong and calls CL_RequestNextDownload() which tries
to download the same file again... Work around this by skippig over that
file.

This closes #552.
This commit is contained in:
Yamagi 2020-06-02 07:55:01 +02:00
parent 7f339952cb
commit ffe8f893ed
1 changed files with 22 additions and 3 deletions
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25
src/client/cl_download.c
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@ -56,6 +56,8 @@ static qboolean httpSecondChance = true;
- 3: Third iteration, UDP downloads. */
static unsigned int precacherIteration;
static qboolean skip_textures;
// r1q2 searches the global filelist at /, q2pro at /gamedir...
static qboolean gamedirForFilelist;
@ -422,7 +424,10 @@ CL_RequestNextDownload(void)
#endif
/* precache phase completed */
precache_check = ENV_CNT + 1;
if (!skip_textures)
{
precache_check = ENV_CNT + 1;
}
CM_LoadMap(cl.configstrings[CS_MODELS + 1], true, &map_checksum);
@ -506,6 +511,7 @@ CL_RequestNextDownload(void)
precacherIteration = 0;
gamedirForFilelist = false;
httpSecondChance = true;
skip_textures = false;
#ifdef USE_CURL
dlquirks.filelist = true;
@ -699,9 +705,9 @@ CL_Download_f(void)
void
CL_ParseDownload(void)
{
int size, percent;
char name[MAX_OSPATH];
int r;
int r, percent, size;
static qboolean second_try;
/* read the data */
size = MSG_ReadShort(&net_message);
@ -719,10 +725,23 @@ CL_ParseDownload(void)
cls.download = NULL;
}
if (second_try)
{
precache_check = ENV_CNT + 999;
skip_textures = true;
second_try = false;
}
else
{
second_try = true;
}
CL_RequestNextDownload();
return;
}
second_try = false;
/* open the file if not opened yet */
if (!cls.download)
{