Add support for Gurobi 9.1.0

[odow]

There were quite a few changes, so I decided it was easiest just to have two separate folders with the full API of each version.

Presumably, if there is a version that changes the API of functions used in the MOI wrapper, that is a good point to drop support for older versions, delete their C wrapper, and bump the minor version of Gurobi.jl.

diff --git a/src/gen/libgrb_api.jl b/src/gen/libgrb_api.jl
index 6990d64..0b4afe8 100644
--- a/src/gen/libgrb_api.jl
+++ b/src/gen/libgrb_api.jl
@@ -662,6 +662,10 @@ function GRBgetstrparam(env, paramname, valueP)
     ccall((:GRBgetstrparam, libgurobi), Cint, (Ptr{GRBenv}, Ptr{Cchar}, Ptr{Cchar}), env, paramname, valueP)
 end
 
+function GRBgetlongstrparam(env, paramname, valueP, size, requiredlenP)
+    ccall((:GRBgetlongstrparam, libgurobi), Cint, (Ptr{GRBenv}, Ptr{Cchar}, Ptr{Cchar}, Cint, Ptr{Cint}), env, paramname, valueP, size, requiredlenP)
+end
+
 function GRBgetintparaminfo(env, paramname, valueP, minP, maxP, defP)
     ccall((:GRBgetintparaminfo, libgurobi), Cint, (Ptr{GRBenv}, Ptr{Cchar}, Ptr{Cint}, Ptr{Cint}, Ptr{Cint}, Ptr{Cint}), env, paramname, valueP, minP, maxP, defP)
 end
@@ -782,6 +786,14 @@ function GRBdiscardmultiobjenvs(model)
     ccall((:GRBdiscardmultiobjenvs, libgurobi), Cvoid, (Ptr{GRBmodel},), model)
 end
 
+function GRBgettuneenv(model, num)
+    ccall((:GRBgettuneenv, libgurobi), Ptr{GRBenv}, (Ptr{GRBmodel}, Cint), model, num)
+end
+
+function GRBdiscardtuneenvs(model)
+    ccall((:GRBdiscardtuneenvs, libgurobi), Cvoid, (Ptr{GRBmodel},), model)
+end
+
 function GRBreleaselicense(env)
     ccall((:GRBreleaselicense, libgurobi), Cvoid, (Ptr{GRBenv},), env)
 end
@@ -798,6 +810,10 @@ function GRBgetmerrormsg(model)
     ccall((:GRBgetmerrormsg, libgurobi), Ptr{Cchar}, (Ptr{GRBmodel},), model)
 end
 
+function GRBgetcommstats(env, recvtimeP, recvbytesP, recvmsgsP, sendtimeP, sendbytesP, sendmsgsP)
+    ccall((:GRBgetcommstats, libgurobi), Cvoid, (Ptr{GRBenv}, Ptr{Cdouble}, Ptr{Cdouble}, Ptr{Cdouble}, Ptr{Cdouble}, Ptr{Cdouble}, Ptr{Cdouble}), env, recvtimeP, recvbytesP, recvmsgsP, sendtimeP, sendbytesP, sendmsgsP)
+end
+
 function GRBversion(majorP, minorP, technicalP)
     ccall((:GRBversion, libgurobi), Cvoid, (Ptr{Cint}, Ptr{Cint}, Ptr{Cint}), majorP, minorP, technicalP)
 end
@@ -810,12 +826,16 @@ function GRBlisttokens()
     ccall((:GRBlisttokens, libgurobi), Cint, ())
 end
 
+function GRBprinttuneparams()
+    ccall((:GRBprinttuneparams, libgurobi), Cvoid, ())
+end
+
 function GRBtunemodel(model)
     ccall((:GRBtunemodel, libgurobi), Cint, (Ptr{GRBmodel},), model)
 end
 
-function GRBtunemodels(nummodels, models, ignore, hint)
-    ccall((:GRBtunemodels, libgurobi), Cint, (Cint, Ptr{Ptr{GRBmodel}}, Ptr{GRBmodel}, Ptr{GRBmodel}), nummodels, models, ignore, hint)
+function GRBtunemodels(nummodels, models, ignore)
+    ccall((:GRBtunemodels, libgurobi), Cint, (Cint, Ptr{Ptr{GRBmodel}}, Ptr{GRBmodel}), nummodels, models, ignore)
 end
 
 function GRBgettuneresult(model, i)
@@ -826,8 +846,8 @@ function GRBgettunelog(model, i, logP)
     ccall((:GRBgettunelog, libgurobi), Cint, (Ptr{GRBmodel}, Cint, Ptr{Ptr{Cchar}}), model, i, logP)
 end
 
-function GRBtunemodeladv(model, ignore, hint)
-    ccall((:GRBtunemodeladv, libgurobi), Cint, (Ptr{GRBmodel}, Ptr{GRBmodel}, Ptr{GRBmodel}), model, ignore, hint)
+function GRBtunemodeladv(model, ignore)
+    ccall((:GRBtunemodeladv, libgurobi), Cint, (Ptr{GRBmodel}, Ptr{GRBmodel}), model, ignore)
 end
 
 function GRBsortIDi(len, ind, val)
@@ -905,3 +925,7 @@ end
 function GRBpingserver(server, password)
     ccall((:GRBpingserver, libgurobi), Cint, (Ptr{Cchar}, Ptr{Cchar}), server, password)
 end
+
+function GRBprefetchattr(model, attrname)
+    ccall((:GRBprefetchattr, libgurobi), Cint, (Ptr{GRBmodel}, Ptr{Cchar}), model, attrname)
+end
diff --git a/src/gen/libgrb_common.jl b/src/gen/libgrb_common.jl
index 847e771..b360e54 100644
--- a/src/gen/libgrb_common.jl
+++ b/src/gen/libgrb_common.jl
@@ -2,8 +2,8 @@
 
 
 const GRB_VERSION_MAJOR = 9
-const GRB_VERSION_MINOR = 0
-const GRB_VERSION_TECHNICAL = 1
+const GRB_VERSION_MINOR = 1
+const GRB_VERSION_TECHNICAL = 0
 const DEFAULT_CS_PRIORITY = 0
 const MAX_CS_PRIORITY = 100
 const DEFAULT_CS_PORT = 61000
@@ -85,6 +85,7 @@ const GRB_STR_ATTR_SERVER = "Server"
 const GRB_STR_ATTR_JOBID = "JobID"
 const GRB_INT_ATTR_LICENSE_EXPIRATION = "LicenseExpiration"
 const GRB_INT_ATTR_NUMTAGGED = "NumTagged"
+const GRB_INT_ATTR_FINGERPRINT = "Fingerprint"
 const GRB_INT_ATTR_BATCHERRORCODE = "BatchErrorCode"
 const GRB_STR_ATTR_BATCHERRORMESSAGE = "BatchErrorMessage"
 const GRB_STR_ATTR_BATCHID = "BatchID"
@@ -379,12 +380,14 @@ const GRB_DBL_PAR_HEURISTICS = "Heuristics"
 const GRB_DBL_PAR_IMPROVESTARTGAP = "ImproveStartGap"
 const GRB_DBL_PAR_IMPROVESTARTTIME = "ImproveStartTime"
 const GRB_DBL_PAR_IMPROVESTARTNODES = "ImproveStartNodes"
+const GRB_INT_PAR_INTEGRALITYFOCUS = "IntegralityFocus"
 const GRB_INT_PAR_MINRELNODES = "MinRelNodes"
 const GRB_INT_PAR_MIPFOCUS = "MIPFocus"
 const GRB_STR_PAR_NODEFILEDIR = "NodefileDir"
 const GRB_DBL_PAR_NODEFILESTART = "NodefileStart"
 const GRB_INT_PAR_NODEMETHOD = "NodeMethod"
-const GRB_INT_PAR_NORELHEURISTIC = "NoRelHeuristic"
+const GRB_DBL_PAR_NORELHEURTIME = "NoRelHeurTime"
+const GRB_DBL_PAR_NORELHEURWORK = "NoRelHeurWork"
 const GRB_INT_PAR_PUMPPASSES = "PumpPasses"
 const GRB_INT_PAR_RINS = "RINS"
 const GRB_STR_PAR_SOLFILES = "SolFiles"
@@ -413,6 +416,7 @@ const GRB_INT_PAR_INFPROOFCUTS = "InfProofCuts"
 const GRB_INT_PAR_RLTCUTS = "RLTCuts"
 const GRB_INT_PAR_RELAXLIFTCUTS = "RelaxLiftCuts"
 const GRB_INT_PAR_BQPCUTS = "BQPCuts"
+const GRB_INT_PAR_PSDCUTS = "PSDCuts"
 const GRB_INT_PAR_CUTAGGPASSES = "CutAggPasses"
 const GRB_INT_PAR_CUTPASSES = "CutPasses"
 const GRB_INT_PAR_GOMORYPASSES = "GomoryPasses"
@@ -480,6 +484,7 @@ const GRB_INT_PAR_TUNECRITERION = "TuneCriterion"
 const GRB_INT_PAR_TUNETRIALS = "TuneTrials"
 const GRB_INT_PAR_TUNEOUTPUT = "TuneOutput"
 const GRB_INT_PAR_TUNEJOBS = "TuneJobs"
+const GRB_DBL_PAR_TUNECLEANUP = "TuneCleanup"
 const GRB_INT_PAR_UPDATEMODE = "UpdateMode"
 const GRB_INT_PAR_OBJNUMBER = "ObjNumber"
 const GRB_INT_PAR_MULTIOBJMETHOD = "MultiObjMethod"
@@ -487,6 +492,7 @@ const GRB_INT_PAR_MULTIOBJPRE = "MultiObjPre"
 const GRB_INT_PAR_SCENARIONUMBER = "ScenarioNumber"
 const GRB_INT_PAR_POOLSOLUTIONS = "PoolSolutions"
 const GRB_DBL_PAR_POOLGAP = "PoolGap"
+const GRB_DBL_PAR_POOLGAPABS = "PoolGapAbs"
 const GRB_INT_PAR_POOLSEARCHMODE = "PoolSearchMode"
 const GRB_INT_PAR_IGNORENAMES = "IgnoreNames"
 const GRB_INT_PAR_STARTNUMBER = "StartNumber"

Closes #364