/*
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* Copyright (C) 2013 Philippe Gerum <rpm@xenomai.org>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _COBALT_POSIX_PROCESS_H
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#define _COBALT_POSIX_PROCESS_H
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#include <linux/list.h>
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#include <linux/bitmap.h>
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#include <pipeline/thread.h>
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#include <cobalt/kernel/ppd.h>
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#define NR_PERSONALITIES 4
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#if BITS_PER_LONG < NR_PERSONALITIES
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#error "NR_PERSONALITIES overflows internal bitmap"
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#endif
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struct mm_struct;
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struct xnthread_personality;
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struct cobalt_timer;
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struct cobalt_resources {
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struct list_head condq;
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struct list_head mutexq;
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struct list_head semq;
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struct list_head monitorq;
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struct list_head eventq;
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struct list_head schedq;
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};
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struct cobalt_process {
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struct mm_struct *mm;
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struct hlist_node hlink;
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struct cobalt_ppd sys_ppd;
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unsigned long permap;
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struct rb_root usems;
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struct list_head sigwaiters;
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struct cobalt_resources resources;
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struct list_head thread_list;
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DECLARE_BITMAP(timers_map, CONFIG_XENO_OPT_NRTIMERS);
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struct cobalt_timer *timers[CONFIG_XENO_OPT_NRTIMERS];
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void *priv[NR_PERSONALITIES];
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int ufeatures;
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unsigned int debugged_threads;
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};
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struct cobalt_resnode {
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struct cobalt_resources *scope;
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struct cobalt_process *owner;
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struct list_head next;
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xnhandle_t handle;
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};
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int cobalt_register_personality(struct xnthread_personality *personality);
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int cobalt_unregister_personality(int xid);
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struct xnthread_personality *cobalt_push_personality(int xid);
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void cobalt_pop_personality(struct xnthread_personality *prev);
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int cobalt_bind_core(int ufeatures);
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int cobalt_bind_personality(unsigned int magic);
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struct cobalt_process *cobalt_search_process(struct mm_struct *mm);
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int cobalt_map_user(struct xnthread *thread, __u32 __user *u_winoff);
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void *cobalt_get_context(int xid);
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int cobalt_yield(xnticks_t min, xnticks_t max);
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int cobalt_process_init(void);
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extern struct list_head cobalt_global_thread_list;
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extern struct cobalt_resources cobalt_global_resources;
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static inline struct cobalt_process *cobalt_current_process(void)
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{
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return pipeline_current()->process;
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}
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static inline struct cobalt_process *
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cobalt_set_process(struct cobalt_process *process)
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{
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struct cobalt_threadinfo *p = pipeline_current();
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struct cobalt_process *old;
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old = p->process;
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p->process = process;
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return old;
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}
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static inline struct cobalt_ppd *cobalt_ppd_get(int global)
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{
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struct cobalt_process *process;
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if (global || (process = cobalt_current_process()) == NULL)
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return &cobalt_kernel_ppd;
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return &process->sys_ppd;
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}
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static inline struct cobalt_resources *cobalt_current_resources(int pshared)
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{
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struct cobalt_process *process;
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if (pshared || (process = cobalt_current_process()) == NULL)
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return &cobalt_global_resources;
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return &process->resources;
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}
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static inline
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void __cobalt_add_resource(struct cobalt_resnode *node, int pshared)
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{
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node->owner = cobalt_current_process();
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node->scope = cobalt_current_resources(pshared);
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}
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#define cobalt_add_resource(__node, __type, __pshared) \
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do { \
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__cobalt_add_resource(__node, __pshared); \
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list_add_tail(&(__node)->next, \
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&((__node)->scope)->__type ## q); \
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} while (0)
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static inline
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void cobalt_del_resource(struct cobalt_resnode *node)
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{
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list_del(&node->next);
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}
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void cobalt_remove_process(struct cobalt_process *process);
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void cobalt_signal_yield(void);
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void cobalt_stop_debugged_process(struct xnthread *thread);
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void cobalt_register_debugged_thread(struct xnthread *thread);
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void cobalt_unregister_debugged_thread(struct xnthread *thread);
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extern struct xnthread_personality *cobalt_personalities[];
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extern struct xnthread_personality cobalt_personality;
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int cobalt_handle_setaffinity_event(struct task_struct *task);
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#ifdef CONFIG_SMP
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void cobalt_adjust_affinity(struct task_struct *task);
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#else
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static inline void cobalt_adjust_affinity(struct task_struct *task) { }
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#endif
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int cobalt_handle_taskexit_event(struct task_struct *task);
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int cobalt_handle_cleanup_event(struct mm_struct *mm);
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int cobalt_handle_user_return(struct task_struct *task);
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#endif /* !_COBALT_POSIX_PROCESS_H */
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