static
struct mutex_info*
mutex_get_or_allocate(const Addr mutex,
const SizeT size,
const MutexT mutex_type)
{
struct mutex_info* p;
tl_assert(offsetof(DrdClientobj, mutex) == 0);
p = &clientobj_get(mutex, ClientMutex)->mutex;
if (p)
{
tl_assert(p->mutex_type == mutex_type);
tl_assert(p->a2 - p->a1 == size);
return p;
}
if (clientobj_present(mutex, mutex + size))
{
GenericErrInfo GEI;
VG_(maybe_record_error)(VG_(get_running_tid)(),
GenericErr,
VG_(get_IP)(VG_(get_running_tid)()),
"Not a mutex",
&GEI);
return 0;
}
p = &clientobj_add(mutex, mutex + size, ClientMutex)->mutex;
mutex_initialize(p, mutex, size, mutex_type);
return p;
}
/** Initialize physical memory management.
*
*/
void frame_init(void)
{
if (config.cpu_active == 1) {
zones.count = 0;
irq_spinlock_initialize(&zones.lock, "frame.zones.lock");
mutex_initialize(&mem_avail_mtx, MUTEX_ACTIVE);
condvar_initialize(&mem_avail_cv);
}
/* Tell the architecture to create some memory */
frame_low_arch_init();
if (config.cpu_active == 1) {
frame_mark_unavailable(ADDR2PFN(KA2PA(config.base)),
SIZE2FRAMES(config.kernel_size));
frame_mark_unavailable(ADDR2PFN(KA2PA(config.stack_base)),
SIZE2FRAMES(config.stack_size));
for (size_t i = 0; i < init.cnt; i++)
frame_mark_unavailable(ADDR2PFN(init.tasks[i].paddr),
SIZE2FRAMES(init.tasks[i].size));
if (ballocs.size)
frame_mark_unavailable(ADDR2PFN(KA2PA(ballocs.base)),
SIZE2FRAMES(ballocs.size));
/*
* Blacklist first frame, as allocating NULL would
* fail in some places
*/
frame_mark_unavailable(0, 1);
}
frame_high_arch_init();
}
/** Initialize a phone structure.
*
* @param phone Phone structure to be initialized.
* @param caller Owning task.
*
*/
void ipc_phone_init(phone_t *phone, task_t *caller)
{
mutex_initialize(&phone->lock, MUTEX_PASSIVE);
phone->caller = caller;
phone->callee = NULL;
phone->state = IPC_PHONE_FREE;
atomic_set(&phone->active_calls, 0);
}
/** Initialize sysinfo subsystem
*
* Create SLAB cache for sysinfo items.
*
*/
void sysinfo_init(void)
{
sysinfo_item_slab = slab_cache_create("sysinfo_item_t",
sizeof(sysinfo_item_t), 0, sysinfo_item_constructor,
sysinfo_item_destructor, SLAB_CACHE_MAGDEFERRED);
mutex_initialize(&sysinfo_lock, MUTEX_ACTIVE);
}
task_sync_data_t *allocate_task_sync_data(void)
{
task_sync_data_t *s=alloc_pages_addr(SYNC_OBJS_PAGES,0);
if( s ) {
memset(s,0,SYNC_OBJS_PAGES*PAGE_SIZE);
atomic_set(&s->use_count,1);
mutex_initialize(&s->mutex);
}
return s;
}
void log_open()
{
mutex_initialize(&l_writeMutex);
if( l_logFilePath == NULL )
{
// log open? close it
_log_closefile();
}
else
{
// not open? open it
_log_closefile();
_log_openfile(l_logFilePath);
}
}
static VALUE
thgroup_s_alloc(VALUE self, SEL sel)
{
rb_thread_group_t *t = (rb_thread_group_t *)xmalloc(
sizeof(rb_thread_group_t));
t->enclosed = false;
GC_WB(&t->threads, rb_ary_new());
OBJ_UNTRUST(t->threads);
VALUE mutex = mutex_s_alloc(rb_cMutex, 0);
mutex_initialize(mutex, 0);
GC_WB(&t->mutex, mutex);
return Data_Wrap_Struct(self, NULL, NULL, t);
}
/** Initialize DDI.
*
*/
void ddi_init(void)
{
btree_create(&parea_btree);
mutex_initialize(&parea_lock, MUTEX_PASSIVE);
}