mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-03 18:13:01 +00:00
07045477ca
I tried using 'svn merge' to do the merge but it did a terrible job and there were bazillions of conflicts. So instead I just took the diff between the branch and trunk at r10155, applied the diff to the trunk, 'svn add'ed the added files (no files needed to be 'svn remove'd) and committed. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10156
112 lines
4.5 KiB
C
112 lines
4.5 KiB
C
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- The scheduler. pub_core_scheduler.h ---*/
|
|
/*--------------------------------------------------------------------*/
|
|
|
|
/*
|
|
This file is part of Valgrind, a dynamic binary instrumentation
|
|
framework.
|
|
|
|
Copyright (C) 2000-2009 Julian Seward
|
|
jseward@acm.org
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any 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 GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307, USA.
|
|
|
|
The GNU General Public License is contained in the file COPYING.
|
|
*/
|
|
|
|
#ifndef __PUB_CORE_SCHEDULER_H
|
|
#define __PUB_CORE_SCHEDULER_H
|
|
|
|
//--------------------------------------------------------------------
|
|
// PURPOSE: This module is the scheduler, which is the main loop
|
|
// controlling the running of all the program's threads.
|
|
// It's at the centre of everything.
|
|
//--------------------------------------------------------------------
|
|
|
|
/* Allocate a new ThreadState */
|
|
extern ThreadId VG_(alloc_ThreadState)(void);
|
|
|
|
/* A thread exits. tid must currently be running. */
|
|
extern void VG_(exit_thread)(ThreadId tid);
|
|
|
|
/* If 'tid' is blocked in a syscall, send it SIGVGKILL so as to get it
|
|
out of the syscall and onto doing the next thing, whatever that is.
|
|
If it isn't blocked in a syscall, has no effect on the thread. */
|
|
extern void VG_(get_thread_out_of_syscall)(ThreadId tid);
|
|
|
|
/* Nuke all threads except tid. */
|
|
extern void VG_(nuke_all_threads_except) ( ThreadId me,
|
|
VgSchedReturnCode reason );
|
|
|
|
/* Make a thread the running thread. The thread must previously been
|
|
sleeping, and not holding the CPU lock. This will set the
|
|
thread state to VgTs_Runnable, and the thread will attempt to take
|
|
the CPU lock. By the time it returns, tid will be the running
|
|
thread. */
|
|
extern void VG_(acquire_BigLock) ( ThreadId tid, HChar* who );
|
|
|
|
/* Simple version, which simply acquires the lock, but does not mess
|
|
with the guest state in the same way as the non _LL version
|
|
does. */
|
|
extern void VG_(acquire_BigLock_LL) ( HChar* who );
|
|
|
|
/* Set a thread into a sleeping state. Before the call, the thread
|
|
must be runnable, and holding the CPU lock. When this call
|
|
returns, the thread will be set to the specified sleeping state,
|
|
and will not be holding the CPU lock. Note that another
|
|
thread could be running by the time this call returns, so the
|
|
caller must be careful not to touch any shared state. It is also
|
|
the caller's responsibility to actually block until the thread is
|
|
ready to run again. */
|
|
extern void VG_(release_BigLock) ( ThreadId tid,
|
|
ThreadStatus state, HChar* who );
|
|
|
|
/* Matching function to acquire_BigLock_LL. */
|
|
extern void VG_(release_BigLock_LL) ( HChar* who );
|
|
|
|
/* Yield the CPU for a while. Drops/acquires the lock using the
|
|
normal (non _LL) functions. */
|
|
extern void VG_(vg_yield)(void);
|
|
|
|
// The scheduler.
|
|
extern VgSchedReturnCode VG_(scheduler) ( ThreadId tid );
|
|
|
|
// Initialise, phase 1. Zero out VG_(threads), decide on the root
|
|
// ThreadId and initialise the bigLock.
|
|
extern ThreadId VG_(scheduler_init_phase1) ( void );
|
|
|
|
// Initialise, phase 2. Is passed the extent of the root thread's
|
|
// client stack and the root ThreadId decided on by phase 1.
|
|
extern void VG_(scheduler_init_phase2) ( ThreadId main_tid,
|
|
Addr clstack_end,
|
|
SizeT clstack_size );
|
|
|
|
/* Stats ... */
|
|
extern void VG_(print_scheduler_stats) ( void );
|
|
|
|
/* If False, a fault is Valgrind-internal (ie, a bug) */
|
|
extern Bool VG_(in_generated_code);
|
|
|
|
/* Sanity checks which may be done at any time. The scheduler decides when. */
|
|
extern void VG_(sanity_check_general) ( Bool force_expensive );
|
|
|
|
#endif // __PUB_CORE_SCHEDULER_H
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- end ---*/
|
|
/*--------------------------------------------------------------------*/
|