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Deployed namespace locking for multithread support

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date	2000.03.21.22.23.00;	author rmoore1;	state Exp;
This commit is contained in:
aystarik 2005-06-29 18:16:42 +00:00
parent e93f337198
commit 9b429fdfa7
1 changed files with 22 additions and 8 deletions
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30
source/components/namespace/nsaccess.c
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@ -138,6 +138,8 @@
*
* DESCRIPTION: Allocate and initialize the root name table
*
* MUTEX: Locks namespace for entire execution
*
***************************************************************************/
ACPI_STATUS
@ -152,6 +154,8 @@ NsSetup (void)
FUNCTION_TRACE ("NsSetup");
CmAcquireMutex (MTX_NAMESPACE);
/*
* Root is initially NULL, so a non-NULL value indicates
* that NsSetup() has already been called; just return.
@ -159,7 +163,8 @@ NsSetup (void)
if (Gbl_RootObject->Scope)
{
return_ACPI_STATUS (AE_OK);
Status = AE_OK;
goto UnlockAndExit;
}
/* Allocate a root scope table */
@ -170,7 +175,8 @@ NsSetup (void)
/* root name table allocation failure */
REPORT_ERROR ("Root name table allocation failure");
return_ACPI_STATUS (AE_NO_MEMORY);
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
/*
@ -184,7 +190,7 @@ NsSetup (void)
Status = NsScopeStackPush (Gbl_RootObject->Scope, ACPI_TYPE_Any);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
goto UnlockAndExit;
}
/* Enter the pre-defined names in the name table */
@ -201,14 +207,16 @@ NsSetup (void)
* && its entry in PreDefinedNames[] specifies an initial value
*/
if ((Status == AE_OK) && NewEntry && InitVal->Val)
if ((Status == AE_OK) &&
NewEntry && InitVal->Val)
{
/* Entry requests an initial value, allocate a descriptor for it. */
ObjDesc = CmCreateInternalObject (InitVal->Type);
if (!ObjDesc)
{
return_ACPI_STATUS (AE_NO_MEMORY);
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
/*
@ -238,7 +246,8 @@ NsSetup (void)
{
REPORT_ERROR ("Initial value string allocation failure");
CmDeleteInternalObject (ObjDesc);
return_ACPI_STATUS (AE_NO_MEMORY);
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
STRCPY ((char *) ObjDesc->String.Pointer, InitVal->Val);
@ -251,7 +260,7 @@ NsSetup (void)
Status = OsdCreateSemaphore (1, &ObjDesc->Mutex.Semaphore);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
goto UnlockAndExit;
}
if (STRCMP (InitVal->Name, "_GL_") == 0)
@ -281,7 +290,10 @@ NsSetup (void)
}
}
return_ACPI_STATUS (AE_OK);
UnlockAndExit:
CmReleaseMutex (MTX_NAMESPACE);
return_ACPI_STATUS (Status);
}
@ -301,6 +313,8 @@ NsSetup (void)
* DESCRIPTION: Find or enter the passed name in the name space.
* Log an error if name not found in Exec mode.
*
* MUTEX: Assumes namespace is locked.
*
***************************************************************************/
ACPI_STATUS