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 @@ ...@@ -6,72 +6,88 @@
#include "compiler/InitializeDll.h" #include "compiler/InitializeDll.h"
#include "GLSLANG/ShaderLang.h"
#include "compiler/InitializeGlobals.h" #include "compiler/InitializeGlobals.h"
#include "compiler/InitializeParseContext.h" #include "compiler/InitializeParseContext.h"
#include "compiler/osinclude.h"
OS_TLSIndex ThreadInitializeIndex = OS_INVALID_TLS_INDEX; OS_TLSIndex ThreadInitializeIndex = OS_INVALID_TLS_INDEX;
bool InitProcess() bool InitProcess()
{ {
if (ThreadInitializeIndex != OS_INVALID_TLS_INDEX) { if (ThreadInitializeIndex != OS_INVALID_TLS_INDEX) {
// //
// Function is re-entrant. // Function is re-entrant.
// //
return true; return true;
} }
ThreadInitializeIndex = OS_AllocTLSIndex(); ThreadInitializeIndex = OS_AllocTLSIndex();
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) { if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "InitProcess(): Failed to allocate TLS area for init flag"); assert(0 && "InitProcess(): Failed to allocate TLS area for init flag");
return false; return false;
} }
if (!InitializePoolIndex()) { if (!InitializePoolIndex()) {
assert(0 && "InitProcess(): Failed to initalize global pool"); assert(0 && "InitProcess(): Failed to initalize global pool");
return false; return false;
} }
if (!InitializeParseContextIndex()) { if (!InitializeParseContextIndex()) {
assert(0 && "InitProcess(): Failed to initalize parse context"); assert(0 && "InitProcess(): Failed to initalize parse context");
return false; return false;
} }
InitThread(); return InitThread();
return true;
} }
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() bool InitThread()
{ {
// //
// This function is re-entrant // This function is re-entrant
// //
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) { if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "InitThread(): Process hasn't been initalised."); assert(0 && "InitThread(): Process hasn't been initalised.");
return false; return false;
} }
if (OS_GetTLSValue(ThreadInitializeIndex) != 0) if (OS_GetTLSValue(ThreadInitializeIndex) != 0)
return true; return true;
InitializeGlobalPools(); InitializeGlobalPools();
if (!InitializeGlobalParseContext()) if (!InitializeGlobalParseContext())
return false; return false;
if (!OS_SetTLSValue(ThreadInitializeIndex, (void *)1)) { 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 false;
} }
return true; return true;
} }
bool DetachThread() bool DetachThread()
{ {
bool success = true; bool success = true;
...@@ -79,42 +95,21 @@ bool DetachThread() ...@@ -79,42 +95,21 @@ bool DetachThread()
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX)
return true; 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_GetTLSValue(ThreadInitializeIndex) != 0) {
if (!OS_SetTLSValue(ThreadInitializeIndex, (void *)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; success = false;
} }
FreeGlobalPools(); if (!FreeParseContext())
if (!FreeParseContext())
success = false; success = false;
}
return success;
}
bool DetachProcess()
{
bool success = true;
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX)
return true;
ShFinalize();
success = DetachThread();
FreePoolIndex();
if (!FreeParseContextIndex()) FreeGlobalPools();
success = false; }
OS_FreeTLSIndex(ThreadInitializeIndex);
ThreadInitializeIndex = OS_INVALID_TLS_INDEX;
return success; return success;
} }
...@@ -6,14 +6,11 @@ ...@@ -6,14 +6,11 @@
#ifndef __INITIALIZEDLL_H #ifndef __INITIALIZEDLL_H
#define __INITIALIZEDLL_H #define __INITIALIZEDLL_H
#include "compiler/osinclude.h"
bool InitProcess(); bool InitProcess();
bool DetachProcess();
bool InitThread(); bool InitThread();
bool DetachThread(); bool DetachThread();
bool DetachProcess();
#endif // __INITIALIZEDLL_H #endif // __INITIALIZEDLL_H
...@@ -6,12 +6,11 @@ ...@@ -6,12 +6,11 @@
#ifndef __INITIALIZE_PARSE_CONTEXT_INCLUDED_ #ifndef __INITIALIZE_PARSE_CONTEXT_INCLUDED_
#define __INITIALIZE_PARSE_CONTEXT_INCLUDED_ #define __INITIALIZE_PARSE_CONTEXT_INCLUDED_
#include "compiler/osinclude.h"
bool InitializeParseContextIndex(); bool InitializeParseContextIndex();
bool InitializeGlobalParseContext();
bool FreeParseContext();
bool FreeParseContextIndex(); bool FreeParseContextIndex();
bool InitializeGlobalParseContext();
bool FreeParseContext();
#endif // __INITIALIZE_PARSE_CONTEXT_INCLUDED_ #endif // __INITIALIZE_PARSE_CONTEXT_INCLUDED_
...@@ -1410,6 +1410,20 @@ bool InitializeParseContextIndex() ...@@ -1410,6 +1410,20 @@ bool InitializeParseContextIndex()
return true; 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() bool InitializeGlobalParseContext()
{ {
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
...@@ -1435,17 +1449,6 @@ bool InitializeGlobalParseContext() ...@@ -1435,17 +1449,6 @@ bool InitializeGlobalParseContext()
return true; return true;
} }
TParseContextPointer& GetGlobalParseContext()
{
//
// Minimal error checking for speed
//
TThreadParseContext *lpParseContext = static_cast<TThreadParseContext *>(OS_GetTLSValue(GlobalParseContextIndex));
return lpParseContext->lpGlobalParseContext;
}
bool FreeParseContext() bool FreeParseContext()
{ {
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
...@@ -1460,16 +1463,14 @@ bool FreeParseContext() ...@@ -1460,16 +1463,14 @@ bool FreeParseContext()
return true; return true;
} }
bool FreeParseContextIndex() TParseContextPointer& GetGlobalParseContext()
{ {
OS_TLSIndex tlsiIndex = GlobalParseContextIndex; //
// Minimal error checking for speed
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) { //
assert(0 && "FreeParseContextIndex(): Parse Context index not initalised");
return false;
}
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( ...@@ -90,9 +90,10 @@ static bool GenerateBuiltInSymbolTable(
// //
int ShInitialize() int ShInitialize()
{ {
bool ret = InitProcess(); if (!InitProcess())
return 0;
return ret ? 1 : 0; return 1;
} }
// //
...@@ -134,6 +135,9 @@ void ShDestruct(ShHandle handle) ...@@ -134,6 +135,9 @@ void ShDestruct(ShHandle handle)
// //
int ShFinalize() int ShFinalize()
{ {
if (!DetachProcess())
return 0;
return 1; return 1;
} }
......
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