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/*********************************************************
* Copyright (C) 2006-2015 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* vthreadBase.h --
*
* Subset of vthread defines that are used by libs that need to make
* vthread calls but don't actually do any vthreading.
*
* May be used without lib/thread or with lib/thread. (But don't try
* to do both simultaneously, since lib/thread needs to do more
* bookkeeping.)
*/
#ifndef VTHREAD_BASE_H
#define VTHREAD_BASE_H
#define INCLUDE_ALLOW_USERLEVEL
#define INCLUDE_ALLOW_VMCORE
#include "includeCheck.h"
#include "vm_atomic.h"
#if !defined VMM && !defined WIN32
#define VTHREAD_USE_PTHREAD 1
#include <signal.h>
#endif
/*
* Types
*/
typedef unsigned VThreadID;
#define VTHREAD_INVALID_ID (VThreadID)(~0u)
/* XXX Vestigial need as an MXState array size */
#define VTHREAD_MAX_THREADS 224
#ifdef VMM
/*
*-----------------------------------------------------------------------------
*
* VThread_CurID --
* VThread_CurName --
*
* Get the current thread ID / name. This is only inline for the monitor.
*
* The extern symbols herein are defined in monitor.c and
* initialized by SharedArea_PowerOn.
*
* Results:
* Thread ID / name.
*
* Side effects:
* None.
*
*-----------------------------------------------------------------------------
*/
static INLINE VThreadID
VThread_CurID(void)
{
extern const VThreadID vthreadCurID;
return vthreadCurID;
}
static INLINE const char *
VThread_CurName(void)
{
extern const char vcpuThreadName[];
return vcpuThreadName;
}
#else
#define VTHREAD_VMX_ID 0
#define VTHREAD_SVGA_ID 1
#define VTHREAD_MKS_ID 2
#define VTHREAD_OTHER_ID 3
#define VTHREAD_ALLOCSTART_ID 4
#define VTHREADBASE_MAX_NAME 32 /* Arbitrary */
typedef struct {
VThreadID id;
char name[VTHREADBASE_MAX_NAME];
#if !defined _WIN32
Atomic_Int signalNestCount;
#endif
} VThreadBaseData;
/* Common VThreadBase functions */
const char *VThreadBase_CurName(void);
VThreadID VThreadBase_CurID(void);
void VThreadBase_SetName(const char *name);
/* For implementing a thread library */
Bool VThreadBase_InitWithTLS(VThreadBaseData *tls);
void VThreadBase_ForgetSelf(void);
void VThreadBase_SetNoIDFunc(void (*func)(void),
void (*destr)(void *));
/* Match up historical VThread_ names with VThreadBase_ names */
static INLINE const char *
VThread_CurName(void)
{ return VThreadBase_CurName(); }
static INLINE VThreadID
VThread_CurID(void)
{ return VThreadBase_CurID(); }
static INLINE void
VThread_SetName(const char *name)
{ VThreadBase_SetName(name); }
#ifdef _WIN32
static INLINE Bool
VThreadBase_IsInSignal(void)
{
/* Win32 does not worry about async-signal-safety. */
return FALSE;
}
#else
Bool VThreadBase_IsInSignal(void);
void VThreadBase_SetIsInSignal(VThreadID tid, Bool isInSignal);
int VThreadBase_SigMask(int how, const sigset_t *newmask, sigset_t *oldmask);
#endif
#endif /* VMM */
#endif // VTHREAD_BASE_H
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