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* android: cwstring: Fixed crash on unload in some cases. Allow ICU usage from other units.

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git-svn-id: trunk@34345 -
This commit is contained in:
yury 2016-08-19 14:48:09 +00:00
parent 4a9eaf5317
commit b10e4aa27b
1 changed files with 59 additions and 46 deletions
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105
rtl/android/cwstring.pp
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@ -38,6 +38,8 @@ type
var
hlibICU: TLibHandle;
hlibICUi18n: TLibHandle;
LibVer: ansistring;
ucnv_open: function (converterName: PAnsiChar; var pErrorCode: UErrorCode): PUConverter; cdecl;
ucnv_close: procedure (converter: PUConverter); cdecl;
ucnv_setSubstChars: procedure (converter: PUConverter; subChars: PAnsiChar; len: byte; var pErrorCode: UErrorCode); cdecl;
@ -456,44 +458,43 @@ end;
procedure UnloadICU;
begin
if hlibICUi18n <> 0 then begin
if DefColl <> nil then
ucol_close(DefColl);
UnloadLibrary(hlibICUi18n);
hlibICUi18n:=0;
end;
if DefColl <> nil then
ucol_close(DefColl);
if DefConv <> nil then
ucnv_close(DefConv);
if LastConv <> nil then
ucnv_close(LastConv);
if hlibICU <> 0 then begin
if DefConv <> nil then
ucnv_close(DefConv);
if LastConv <> nil then
ucnv_close(LastConv);
UnloadLibrary(hlibICU);
hlibICU:=0;
end;
if hlibICUi18n <> 0 then begin
UnloadLibrary(hlibICUi18n);
hlibICUi18n:=0;
end;
end;
function GetIcuProc(const Name: AnsiString; out ProcPtr; libId: longint = 0): boolean; [public, alias: 'CWSTRING_GET_ICU_PROC'];
var
p: pointer;
hLib: TLibHandle;
begin
Result:=False;
if libId = 0 then
hLib:=hlibICU
else
hLib:=hlibICUi18n;
if hLib = 0 then
exit;
p:=GetProcedureAddress(hlib, Name + LibVer);
if p = nil then
exit;
pointer(ProcPtr):=p;
Result:=True;
end;
procedure LoadICU;
var
LibVer: ansistring;
function _GetProc(const Name: AnsiString; out ProcPtr; hLib: TLibHandle = 0): boolean;
var
p: pointer;
begin
if hLib = 0 then
hLib:=hlibICU;
p:=GetProcedureAddress(hlib, Name + LibVer);
if p = nil then begin
// unload lib on failure
UnloadICU;
Result:=False;
end
else begin
pointer(ProcPtr):=p;
Result:=True;
end;
end;
const
ICUver: array [1..9] of ansistring = ('3_8', '4_2', '44', '46', '48', '50', '51', '53', '55');
TestProcName = 'ucnv_open';
@ -502,8 +503,14 @@ var
i: longint;
s: ansistring;
begin
{$ifdef android}
hlibICU:=LoadLibrary('libicuuc.so');
hlibICUi18n:=LoadLibrary('libicui18n.so');
{$else}
hlibICU:=LoadLibrary('icuuc40.dll');
hlibICUi18n:=LoadLibrary('icuin40.dll');
LibVer:='_4_0';
{$endif android}
if (hlibICU = 0) or (hlibICUi18n = 0) then begin
UnloadICU;
exit;
@ -540,33 +547,39 @@ begin
end;
end;
if not _GetProc('ucnv_open', ucnv_open) then exit;
if not _GetProc('ucnv_close', ucnv_close) then exit;
if not _GetProc('ucnv_setSubstChars', ucnv_setSubstChars) then exit;
if not _GetProc('ucnv_setFallback', ucnv_setFallback) then exit;
if not _GetProc('ucnv_fromUChars', ucnv_fromUChars) then exit;
if not _GetProc('ucnv_toUChars', ucnv_toUChars) then exit;
if not _GetProc('u_strToUpper', u_strToUpper) then exit;
if not _GetProc('u_strToLower', u_strToLower) then exit;
if not _GetProc('u_strCompare', u_strCompare) then exit;
if not _GetProc('u_strCaseCompare', u_strCaseCompare) then exit;
if not GetIcuProc('ucnv_open', ucnv_open) then exit;
if not GetIcuProc('ucnv_close', ucnv_close) then exit;
if not GetIcuProc('ucnv_setSubstChars', ucnv_setSubstChars) then exit;
if not GetIcuProc('ucnv_setFallback', ucnv_setFallback) then exit;
if not GetIcuProc('ucnv_fromUChars', ucnv_fromUChars) then exit;
if not GetIcuProc('ucnv_toUChars', ucnv_toUChars) then exit;
if not GetIcuProc('u_strToUpper', u_strToUpper) then exit;
if not GetIcuProc('u_strToLower', u_strToLower) then exit;
if not GetIcuProc('u_strCompare', u_strCompare) then exit;
if not GetIcuProc('u_strCaseCompare', u_strCaseCompare) then exit;
if not _GetProc('u_errorName', u_errorName) then exit;
if not GetIcuProc('u_errorName', u_errorName) then exit;
if not _GetProc('ucol_open', ucol_open, hlibICUi18n) then exit;
if not _GetProc('ucol_close', ucol_close, hlibICUi18n) then exit;
if not _GetProc('ucol_strcoll', ucol_strcoll, hlibICUi18n) then exit;
if not _GetProc('ucol_setStrength', ucol_setStrength, hlibICUi18n) then exit;
if not GetIcuProc('ucol_open', ucol_open, 1) then exit;
if not GetIcuProc('ucol_close', ucol_close, 1) then exit;
if not GetIcuProc('ucol_strcoll', ucol_strcoll, 1) then exit;
if not GetIcuProc('ucol_setStrength', ucol_setStrength, 1) then exit;
end;
var
oldm: TUnicodeStringManager;
initialization
GetUnicodeStringManager(oldm);
DefaultSystemCodePage:=GetStandardCodePage(scpAnsi);
DefaultUnicodeCodePage:=CP_UTF16;
LoadICU;
SetCWideStringManager;
{$ifdef android}
SetStdIOCodePages;
{$endif android}
finalization
SetUnicodeStringManager(oldm);
UnloadICU;
end.