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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <pthread.h>
#include "pthread_internal.h"
#define DEFAULT_STACK_SIZE (1024 * 1024)
int pthread_attr_init(pthread_attr_t* attr) {
attr->flags = 0;
attr->stack_base = NULL;
attr->stack_size = DEFAULT_STACK_SIZE;
attr->guard_size = PAGE_SIZE;
attr->sched_policy = SCHED_NORMAL;
attr->sched_priority = 0;
return 0;
}
int pthread_attr_destroy(pthread_attr_t* attr) {
memset(attr, 0x42, sizeof(pthread_attr_t));
return 0;
}
int pthread_attr_setdetachstate(pthread_attr_t* attr, int state) {
if (state == PTHREAD_CREATE_DETACHED) {
attr->flags |= PTHREAD_ATTR_FLAG_DETACHED;
} else if (state == PTHREAD_CREATE_JOINABLE) {
attr->flags &= ~PTHREAD_ATTR_FLAG_DETACHED;
} else {
return EINVAL;
}
return 0;
}
int pthread_attr_getdetachstate(pthread_attr_t const* attr, int* state) {
*state = (attr->flags & PTHREAD_ATTR_FLAG_DETACHED) ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE;
return 0;
}
int pthread_attr_setschedpolicy(pthread_attr_t* attr, int policy) {
attr->sched_policy = policy;
return 0;
}
int pthread_attr_getschedpolicy(pthread_attr_t const* attr, int* policy) {
*policy = attr->sched_policy;
return 0;
}
int pthread_attr_setschedparam(pthread_attr_t * attr, struct sched_param const* param) {
attr->sched_priority = param->sched_priority;
return 0;
}
int pthread_attr_getschedparam(pthread_attr_t const* attr, struct sched_param* param) {
param->sched_priority = attr->sched_priority;
return 0;
}
int pthread_attr_setstacksize(pthread_attr_t* attr, size_t stack_size) {
if (stack_size < PTHREAD_STACK_MIN) {
return EINVAL;
}
attr->stack_size = stack_size;
return 0;
}
int pthread_attr_getstacksize(pthread_attr_t const* attr, size_t* stack_size) {
*stack_size = attr->stack_size;
return 0;
}
int pthread_attr_setstackaddr(pthread_attr_t*, void*) {
// This was removed from POSIX.1-2008, and is not implemented on bionic.
// Needed for ABI compatibility with the NDK.
return ENOSYS;
}
int pthread_attr_getstackaddr(pthread_attr_t const* attr, void** stack_addr) {
// This was removed from POSIX.1-2008.
// Needed for ABI compatibility with the NDK.
*stack_addr = (char*)attr->stack_base + attr->stack_size;
return 0;
}
int pthread_attr_setstack(pthread_attr_t* attr, void* stack_base, size_t stack_size) {
if ((stack_size & (PAGE_SIZE - 1) || stack_size < PTHREAD_STACK_MIN)) {
return EINVAL;
}
if ((uint32_t)stack_base & (PAGE_SIZE - 1)) {
return EINVAL;
}
attr->stack_base = stack_base;
attr->stack_size = stack_size;
return 0;
}
int pthread_attr_getstack(pthread_attr_t const* attr, void** stack_base, size_t* stack_size) {
*stack_base = attr->stack_base;
*stack_size = attr->stack_size;
return 0;
}
int pthread_attr_setguardsize(pthread_attr_t* attr, size_t guard_size) {
attr->guard_size = guard_size;
return 0;
}
int pthread_attr_getguardsize(pthread_attr_t const* attr, size_t* guard_size) {
*guard_size = attr->guard_size;
return 0;
}
int pthread_getattr_np(pthread_t thid, pthread_attr_t* attr) {
pthread_internal_t* thread = (pthread_internal_t*) thid;
*attr = thread->attr;
return 0;
}
int pthread_attr_setscope(pthread_attr_t* , int scope) {
if (scope == PTHREAD_SCOPE_SYSTEM) {
return 0;
}
if (scope == PTHREAD_SCOPE_PROCESS) {
return ENOTSUP;
}
return EINVAL;
}
int pthread_attr_getscope(pthread_attr_t const*) {
return PTHREAD_SCOPE_SYSTEM;
}
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