* Patch from Ludo brands to add IsLibraryLoaded sqlite/src/sqlite3.inc

git-svn-id: trunk@22852 -
This commit is contained in:
michael 2012-10-26 17:10:35 +00:00
parent 307b617372
commit 520d51cf7c
3 changed files with 13 additions and 9 deletions

View File

@ -1602,6 +1602,7 @@ Function InitialiseMysql(argc:cint = -1; argv:PPchar = nil; groups:PPchar = nil)
Procedure ReleaseMysql;
var MysqlLibraryHandle : TLibHandle;
MysqlLoadedLibrary : String;
{$ENDIF}
implementation
@ -1615,7 +1616,6 @@ ResourceString
var
RefCount : integer;
LoadedLibrary : String;
Function TryInitialiseMysql(Const LibraryName: String; argc: cint; argv: PPchar; groups: PPchar) : Integer;
@ -1627,7 +1627,7 @@ begin
if (MysqlLibraryHandle=nilhandle) then
Exit;
Inc(RefCount);
LoadedLibrary:=LibraryName;
MysqlLoadedLibrary:=LibraryName;
// Only the procedure that are given in the c-library documentation are loaded, to
// avoid problems with 'incomplete' libraries
pointer(my_init) := GetProcedureAddress(MysqlLibraryHandle,'my_init');
@ -1768,11 +1768,11 @@ begin
Result := TryInitialiseMysql(LibraryName,argc,argv,groups);
If Result = 0 then
Raise EInOutError.CreateFmt(SErrLoadFailed,[LibraryName])
else If (LibraryName<>LoadedLibrary) then
else If (LibraryName<>MysqlLoadedLibrary) then
begin
Dec(RefCount);
Result := RefCount;
Raise EInOUtError.CreateFmt(SErrAlreadyLoaded,[LoadedLibrary]);
Raise EInOUtError.CreateFmt(SErrAlreadyLoaded,[MysqlLoadedLibrary]);
end;
end;
@ -1788,7 +1788,7 @@ begin
begin
Dec(RefCount);
MysqlLibraryHandle := NilHandle;
LoadedLibrary:='';
MysqlLoadedLibrary:='';
end
end
end;

View File

@ -91,6 +91,8 @@ const
function PQprotocolVersion(conn:PPGconn):longint;cdecl;external External_library name 'PQprotocolVersion';
function PQserverVersion(conn:PPGconn):longint;cdecl;external External_library name 'PQserverVersion';
function PQerrorMessage(conn:PPGconn):Pchar;cdecl;external External_library name 'PQerrorMessage';
function PQsocket(conn:PPGconn):longint;cdecl;external External_library name 'PQsocket';

View File

@ -82,6 +82,7 @@ var
PQtransactionStatus : function (conn:PPGconn):PGTransactionStatusType;cdecl;
PQparameterStatus : function (conn:PPGconn; paramName:Pchar):Pchar;cdecl;
PQprotocolVersion : function (conn:PPGconn):longint;cdecl;
PQserverVersion : function (conn:PPGconn):longint;cdecl;
PQerrorMessage : function (conn:PPGconn):Pchar;cdecl;
PQsocket : function (conn:PPGconn):longint;cdecl;
PQbackendPID : function (conn:PPGconn):longint;cdecl;
@ -224,6 +225,7 @@ Procedure ReleasePostgres3;
function PQsetdb(M_PGHOST,M_PGPORT,M_PGOPT,M_PGTTY,M_DBNAME : pchar) : ppgconn;
var Postgres3LibraryHandle : TLibHandle;
Postgres3LoadedLibrary : String;
implementation
@ -233,7 +235,6 @@ resourcestring
var
RefCount : integer;
LoadedLibrary : String;
procedure InitialisePostgres3;
@ -260,7 +261,7 @@ begin
Raise EInOutError.CreateFmt(SErrLoadFailed,[libpath]);
end;
LoadedLibrary:=libpath;
Postgres3LoadedLibrary:=libpath;
pointer(PQconnectStart) := GetProcedureAddress(Postgres3LibraryHandle,'PQconnectStart');
pointer(PQconnectPoll) := GetProcedureAddress(Postgres3LibraryHandle,'PQconnectPoll');
pointer(PQconnectdb) := GetProcedureAddress(Postgres3LibraryHandle,'PQconnectdb');
@ -283,6 +284,7 @@ begin
pointer(PQtransactionStatus) := GetProcedureAddress(Postgres3LibraryHandle,'PQtransactionStatus');
pointer(PQparameterStatus) := GetProcedureAddress(Postgres3LibraryHandle,'PQparameterStatus');
pointer(PQprotocolVersion) := GetProcedureAddress(Postgres3LibraryHandle,'PQprotocolVersion');
pointer(PQserverVersion) := GetProcedureAddress(Postgres3LibraryHandle,'PQserverVersion');
pointer(PQerrorMessage) := GetProcedureAddress(Postgres3LibraryHandle,'PQerrorMessage');
pointer(PQsocket) := GetProcedureAddress(Postgres3LibraryHandle,'PQsocket');
pointer(PQbackendPID) := GetProcedureAddress(Postgres3LibraryHandle,'PQbackendPID');
@ -367,10 +369,10 @@ begin
InitialiseDllist(libpath);
end
else
if (libpath<>pqlib) and (LoadedLibrary<>libpath) then
if (libpath<>pqlib) and (Postgres3LoadedLibrary<>libpath) then
begin
Dec(RefCount);
Raise EInOUtError.CreateFmt(SErrAlreadyLoaded,[LoadedLibrary]);
Raise EInOUtError.CreateFmt(SErrAlreadyLoaded,[Postgres3LoadedLibrary]);
end;
end;