2247: Thread safe SQL interaction r=def- a=Zwelf
This PR intends to make the database interaction thread safe and optimizes some SQL queries. This is still a WIP, but since it is a rather big PR I wanted to get feedback early on.
Benefits:
* remove race conditions leading to undefined behavior and potential crashes
* logging game related database results in teehistorian would be possible
Behavior change:
* /top5team prints ranks in reverse order when passing a negative number (like /top5, /top5points)
* Optimize SQL statements for /rank /teamrank /top5 /top5team /points /top5points
* /load without parameters doesn't pass the SQL error to the user (as most other functions)
* Simplify IScore interface
* Add UUID to /save table (update of database schema necessary):
```
ALTER TABLE record_saves ADD SaveID varchar(64);
```
* /save immediately kills team and loads it again if the database insert fails.
still TBD:
* [x] saving (team) score when finishing
* [x] loading team save
* [x] loading initial time and birthday check
* [x] /map and random map votes
* [x] RFC: generate a passphrase (2-3 word) if save-code exists or no save-code is given making /save failures much more rare and save-codes more secure
* [x] clean up code (removing now unused structs, ordering of functions in IScore)
Co-authored-by: Zwelf <zwelf@strct.cc>
2202: Send DDNet version early in the connection process r=Learath2 a=heinrich5991
This gets rid of the problem that we don't know whether we should send
full snapshots to clients because they haven't told us about them being
DDNet yet.
Co-authored-by: heinrich5991 <heinrich5991@gmail.com>
2212: Use a consistent PRNG on all platforms r=Learath2 a=heinrich5991
I just used glibc's because that is what we use on all the servers. Based on https://www.mscs.dal.ca/~selinger/random/.
Behavior change: The PRNG is actually seeded now.
Co-authored-by: heinrich5991 <heinrich5991@gmail.com>
As discussed on Discord today, can be enabled inside of teams on the fly
during each run on any server. Finishes don't count. I haven't tested
save/load yet, would do that live on the server if this can be merged.
The following member variables:
* m_name to m_aName
* m_String to m_aString
* m_CpCurrent to m_aCpCurrent
* m_Switchers to m_pSwitchers
* SavedTees to m_pSavedTees
This came from a long discussion comparing PCG-* against xoroshiro*. Do
not generate integers without bias because it doesn't affect us very
much and it is easier to reimplement with modulo.
2208: Implement /load without params to show some info r=Learath2 a=def-
about your existing saves. Not the code of course, but only how many saves you have and when you last saved on this map.
Co-authored-by: def <dennis@felsin9.de>
This gets rid of the problem that we don't know whether we should send
full snapshots to clients because they haven't told us about them being
DDNet yet.
2096: Fix the double-free of the antibot r=def- a=heinrich5991
I could not find an easy way to ensure that `AntibotDestroy` is only
being called once for each `AntibotInit` but still happening after all
the `CPlayer` destructors.
Co-authored-by: heinrich5991 <heinrich5991@gmail.com>
I could not find an easy way to ensure that `AntibotDestroy` is only
being called once for each `AntibotInit` but still happening after all
the `CPlayer` destructors.
2069: Move global configuration out of client interface r=heinrich5991 a=ChillerDragon
2076: Allow editing multiple tile layer props r=heinrich5991 a=Learath2
Requested by Ravie on discord
2095: Fix `AntibotDestroy` being called twice r=def- a=heinrich5991
The resource deallocation needs to happen in symmetry with the
allocation, otherwise we get unmatched dealloctions leading to crashes.
Allocations happened in `CAntibot::Init`, but it was not guaranteed that
this was called before the destructor.
Co-authored-by: ChillerDragon <ChillerDragon@gmail.com>
Co-authored-by: Learath <learath2@gmail.com>
Co-authored-by: heinrich5991 <heinrich5991@gmail.com>
The resource deallocation needs to happen in symmetry with the
allocation, otherwise we get unmatched dealloctions leading to crashes.
Allocations happened in `CAntibot::Init`, but it was not guaranteed that
this was called before the destructor.
src/game/server/score/file_score.cpp: In member function ‘CFileScore::CPlayerScore* CFileScore::SearchName(const char*, int*, bool)’:
src/game/server/score/file_score.cpp:169:9: error: ‘strcmp’ was not declared in this scope
169 | if (!strcmp(r.front().m_aName, pName))
| ^~~~~~
src/game/server/score/file_score.cpp:12:1: note: ‘strcmp’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
11 | #include <engine/shared/console.h>
+++ |+#include <cstring>
12 |¬
Saves should not be loadable from one to the other.
Requires:
ALTER TABLE record_race ADD COLUMN DDNet7 BOOL DEFAULT FALSE AFTER GameID;
ALTER TABLE record_teamrace ADD COLUMN DDNet7 BOOL DEFAULT FALSE AFTER GameID;
ALTER TABLE record_saves ADD COLUMN DDNet7 BOOL DEFAULT FALSE AFTER Server;
1976: Write out sql server prefix to failed_sql.sql r=Learath2 a=def-
also don't write out non-eligible records.
Co-authored-by: Dennis Felsing <dennis@felsin9.de>