int
ethr_init_common__(ethr_init_data *id)
{
int res;
if (id) {
ethr_thr_prepare_func__ = id->thread_create_prepare_func;
ethr_thr_parent_func__ = id->thread_create_parent_func;
ethr_thr_child_func__ = id->thread_create_child_func;
}
ethr_cpu_info__ = erts_cpu_info_create();
if (!ethr_cpu_info__)
return ENOMEM;
#ifdef _SC_PAGESIZE
ethr_pagesize__ = (size_t) sysconf(_SC_PAGESIZE);
#elif defined(HAVE_GETPAGESIZE)
ethr_pagesize__ = (size_t) getpagesize();
#else
ethr_pagesize__ = (size_t) 4*1024; /* Guess 4 KB */
#endif
/* User needs at least 4 KB */
ethr_min_stack_size__ = 4*1024;
#if SIZEOF_VOID_P == 8
/* Double that on 64-bit archs */
ethr_min_stack_size__ *= 2;
#endif
/* On some systems as much as about 4 KB is used by the system */
ethr_min_stack_size__ += 4*1024;
/* There should be room for signal handlers */
#ifdef SIGSTKSZ
ethr_min_stack_size__ += SIGSTKSZ;
#else
ethr_min_stack_size__ += ethr_pagesize__;
#endif
/* The system may think that we need more stack */
#if defined(PTHREAD_STACK_MIN)
if (ethr_min_stack_size__ < PTHREAD_STACK_MIN)
ethr_min_stack_size__ = PTHREAD_STACK_MIN;
#elif defined(_SC_THREAD_STACK_MIN)
{
size_t thr_min_stk_sz = (size_t) sysconf(_SC_THREAD_STACK_MIN);
if (ethr_min_stack_size__ < thr_min_stk_sz)
ethr_min_stack_size__ = thr_min_stk_sz;
}
#endif
/* The guard is at least on some platforms included in the stack size
passed when creating threads */
#ifdef ETHR_STACK_GUARD_SIZE
ethr_min_stack_size__ += ETHR_STACK_GUARD_SIZE;
#endif
ethr_min_stack_size__ = ETHR_PAGE_ALIGN(ethr_min_stack_size__);
ethr_min_stack_size__ = ETHR_B2KW(ethr_min_stack_size__);
ethr_max_stack_size__ = 32*1024*1024;
#if SIZEOF_VOID_P == 8
ethr_max_stack_size__ *= 2;
#endif
ethr_max_stack_size__ = ETHR_B2KW(ethr_max_stack_size__);
#ifndef ETHR_HAVE_OPTIMIZED_ATOMIC_OPS
{
int i;
for (i = 0; i < (1 << ETHR_ATOMIC_ADDR_BITS); i++) {
res = ethr_spinlock_init(ðr_atomic_protection__[i].u.lck);
if (res != 0)
return res;
}
}
#endif
res = ethr_mutex_lib_init(erts_get_cpu_configured(ethr_cpu_info__));
if (res != 0)
return res;
xhndl_list = NULL;
return 0;
}
int
ethr_init_common__(ethr_init_data *id)
{
int res;
ethr_init_event__();
#if defined(ETHR_X86_RUNTIME_CONF__)
x86_init();
#endif
if (id) {
ethr_thr_prepare_func__ = id->thread_create_prepare_func;
ethr_thr_parent_func__ = id->thread_create_parent_func;
ethr_thr_child_func__ = id->thread_create_child_func;
}
ethr_cpu_info__ = erts_cpu_info_create();
if (!ethr_cpu_info__)
return ENOMEM;
#ifdef _SC_PAGESIZE
ethr_pagesize__ = (size_t) sysconf(_SC_PAGESIZE);
#elif defined(HAVE_GETPAGESIZE)
ethr_pagesize__ = (size_t) getpagesize();
#else
ethr_pagesize__ = (size_t) 4*1024; /* Guess 4 KB */
#endif
/* User needs at least 4 KB */
ethr_min_stack_size__ = 4*1024;
#if SIZEOF_VOID_P == 8
/* Double that on 64-bit archs */
ethr_min_stack_size__ *= 2;
#endif
/* On some systems as much as about 4 KB is used by the system */
ethr_min_stack_size__ += 4*1024;
/* There should be room for signal handlers */
#ifdef SIGSTKSZ
ethr_min_stack_size__ += SIGSTKSZ;
#else
ethr_min_stack_size__ += ethr_pagesize__;
#endif
/* The system may think that we need more stack */
#if defined(PTHREAD_STACK_MIN)
if (ethr_min_stack_size__ < PTHREAD_STACK_MIN)
ethr_min_stack_size__ = PTHREAD_STACK_MIN;
#elif defined(_SC_THREAD_STACK_MIN)
{
size_t thr_min_stk_sz = (size_t) sysconf(_SC_THREAD_STACK_MIN);
if (ethr_min_stack_size__ < thr_min_stk_sz)
ethr_min_stack_size__ = thr_min_stk_sz;
}
#endif
/* The guard is at least on some platforms included in the stack size
passed when creating threads */
#ifdef ETHR_STACK_GUARD_SIZE
ethr_min_stack_size__ += ETHR_STACK_GUARD_SIZE;
#endif
ethr_min_stack_size__ = ETHR_PAGE_ALIGN(ethr_min_stack_size__);
ethr_min_stack_size__ = ETHR_B2KW(ethr_min_stack_size__);
#ifdef __OSE__
/* For supervisor processes, OSE adds a number of bytes to the requested stack. With this
* addition, the resulting size must not exceed the largest available stack size. The number
* of bytes that will be added is configured in the monolith and can therefore not be
* specified here. We simply assume that it is less than 0x1000. The available stack sizes
* are configured in the .lmconf file and the largest one is usually 65536 bytes.
* Consequently, the requested stack size is limited to 0xF000.
*/
ethr_max_stack_size__ = 0xF000;
#else
ethr_max_stack_size__ = 32*1024*1024;
#endif
#if SIZEOF_VOID_P == 8
ethr_max_stack_size__ *= 2;
#endif
ethr_max_stack_size__ = ETHR_B2KW(ethr_max_stack_size__);
res = ethr_init_atomics();
if (res != 0)
return res;
res = ethr_mutex_lib_init(erts_get_cpu_configured(ethr_cpu_info__));
if (res != 0)
return res;
xhndl_list = NULL;
return 0;
}
