Commit 34b99cdf by alokp@chromium.org

De-allocate memory in ShFinalize(). There still seems to be a bug here if the…

De-allocate memory in ShFinalize(). There still seems to be a bug here if the translator is used in a multi-threaded environment. It seems memory local to only one thread is being deallocated - the thread from which ShFinalize() is called. I will look into it closely in the next CL. Review URL: http://codereview.appspot.com/1878044 git-svn-id: https://angleproject.googlecode.com/svn/trunk@353 736b8ea6-26fd-11df-bfd4-992fa37f6226
parent 5eb4609c
......@@ -6,72 +6,88 @@
#include "compiler/InitializeDll.h"
#include "GLSLANG/ShaderLang.h"
#include "compiler/InitializeGlobals.h"
#include "compiler/InitializeParseContext.h"
#include "compiler/osinclude.h"
OS_TLSIndex ThreadInitializeIndex = OS_INVALID_TLS_INDEX;
bool InitProcess()
{
if (ThreadInitializeIndex != OS_INVALID_TLS_INDEX) {
//
// Function is re-entrant.
//
//
// Function is re-entrant.
//
return true;
}
}
ThreadInitializeIndex = OS_AllocTLSIndex();
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "InitProcess(): Failed to allocate TLS area for init flag");
return false;
}
}
if (!InitializePoolIndex()) {
assert(0 && "InitProcess(): Failed to initalize global pool");
return false;
}
}
if (!InitializeParseContextIndex()) {
assert(0 && "InitProcess(): Failed to initalize parse context");
return false;
}
}
InitThread();
return true;
return InitThread();
}
bool DetachProcess()
{
bool success = true;
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX)
return true;
success = DetachThread();
if (!FreeParseContextIndex())
success = false;
FreePoolIndex();
OS_FreeTLSIndex(ThreadInitializeIndex);
ThreadInitializeIndex = OS_INVALID_TLS_INDEX;
return success;
}
bool InitThread()
{
//
//
// This function is re-entrant
//
//
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "InitThread(): Process hasn't been initalised.");
assert(0 && "InitThread(): Process hasn't been initalised.");
return false;
}
}
if (OS_GetTLSValue(ThreadInitializeIndex) != 0)
return true;
InitializeGlobalPools();
InitializeGlobalPools();
if (!InitializeGlobalParseContext())
if (!InitializeGlobalParseContext())
return false;
if (!OS_SetTLSValue(ThreadInitializeIndex, (void *)1)) {
assert(0 && "InitThread(): Unable to set init flag.");
assert(0 && "InitThread(): Unable to set init flag.");
return false;
}
}
return true;
}
bool DetachThread()
{
bool success = true;
......@@ -79,42 +95,21 @@ bool DetachThread()
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX)
return true;
//
// Function is re-entrant and this thread may not have been initalised.
//
//
// Function is re-entrant and this thread may not have been initalised.
//
if (OS_GetTLSValue(ThreadInitializeIndex) != 0) {
if (!OS_SetTLSValue(ThreadInitializeIndex, (void *)0)) {
assert(0 && "DetachThread(): Unable to clear init flag.");
assert(0 && "DetachThread(): Unable to clear init flag.");
success = false;
}
}
FreeGlobalPools();
if (!FreeParseContext())
if (!FreeParseContext())
success = false;
}
return success;
}
bool DetachProcess()
{
bool success = true;
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX)
return true;
ShFinalize();
success = DetachThread();
FreePoolIndex();
if (!FreeParseContextIndex())
success = false;
OS_FreeTLSIndex(ThreadInitializeIndex);
ThreadInitializeIndex = OS_INVALID_TLS_INDEX;
FreeGlobalPools();
}
return success;
}
......@@ -6,14 +6,11 @@
#ifndef __INITIALIZEDLL_H
#define __INITIALIZEDLL_H
#include "compiler/osinclude.h"
bool InitProcess();
bool DetachProcess();
bool InitThread();
bool DetachThread();
bool DetachProcess();
#endif // __INITIALIZEDLL_H
......@@ -6,12 +6,11 @@
#ifndef __INITIALIZE_PARSE_CONTEXT_INCLUDED_
#define __INITIALIZE_PARSE_CONTEXT_INCLUDED_
#include "compiler/osinclude.h"
bool InitializeParseContextIndex();
bool InitializeGlobalParseContext();
bool FreeParseContext();
bool FreeParseContextIndex();
bool InitializeGlobalParseContext();
bool FreeParseContext();
#endif // __INITIALIZE_PARSE_CONTEXT_INCLUDED_
......@@ -1410,6 +1410,20 @@ bool InitializeParseContextIndex()
return true;
}
bool FreeParseContextIndex()
{
OS_TLSIndex tlsiIndex = GlobalParseContextIndex;
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "FreeParseContextIndex(): Parse Context index not initalised");
return false;
}
GlobalParseContextIndex = OS_INVALID_TLS_INDEX;
return OS_FreeTLSIndex(tlsiIndex);
}
bool InitializeGlobalParseContext()
{
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
......@@ -1435,17 +1449,6 @@ bool InitializeGlobalParseContext()
return true;
}
TParseContextPointer& GetGlobalParseContext()
{
//
// Minimal error checking for speed
//
TThreadParseContext *lpParseContext = static_cast<TThreadParseContext *>(OS_GetTLSValue(GlobalParseContextIndex));
return lpParseContext->lpGlobalParseContext;
}
bool FreeParseContext()
{
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
......@@ -1460,16 +1463,14 @@ bool FreeParseContext()
return true;
}
bool FreeParseContextIndex()
TParseContextPointer& GetGlobalParseContext()
{
OS_TLSIndex tlsiIndex = GlobalParseContextIndex;
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "FreeParseContextIndex(): Parse Context index not initalised");
return false;
}
//
// Minimal error checking for speed
//
GlobalParseContextIndex = OS_INVALID_TLS_INDEX;
TThreadParseContext *lpParseContext = static_cast<TThreadParseContext *>(OS_GetTLSValue(GlobalParseContextIndex));
return OS_FreeTLSIndex(tlsiIndex);
return lpParseContext->lpGlobalParseContext;
}
......@@ -90,9 +90,10 @@ static bool GenerateBuiltInSymbolTable(
//
int ShInitialize()
{
bool ret = InitProcess();
if (!InitProcess())
return 0;
return ret ? 1 : 0;
return 1;
}
//
......@@ -134,6 +135,9 @@ void ShDestruct(ShHandle handle)
//
int ShFinalize()
{
if (!DetachProcess())
return 0;
return 1;
}
......
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