TarsCloud_TarsCpp/servant/libservant/CoroutineScheduler.cpp
2020-02-02 15:42:56 +08:00

1016 lines
24 KiB
C++

/**
* Tencent is pleased to support the open source community by making Tars available.
*
* Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.
*
* Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
#include "servant/CoroutineScheduler.h"
#if TARGET_PLATFORM_LINUX || TARGET_PLATFORM_IOS
#include <fcntl.h>
#include <signal.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#endif
#include <algorithm>
#include <cmath>
#include <cstring>
#include <stdexcept>
#include <assert.h>
#include "util/tc_timeprovider.h"
#include "servant/TarsLogger.h"
#include "servant/ServantHandle.h"
namespace tars
{
#if TARGET_PLATFORM_WINDOWS
// x86_64
// test x86_64 before i386 because icc might
// define __i686__ for x86_64 too
#if defined(__x86_64__) || defined(__x86_64) \
|| defined(__amd64__) || defined(__amd64) \
|| defined(_M_X64) || defined(_M_AMD64)
// Windows seams not to provide a constant or function
// telling the minimal stacksize
# define MIN_STACKSIZE 8 * 1024
#else
# define MIN_STACKSIZE 4 * 1024
#endif
void system_info_( SYSTEM_INFO * si) {
::GetSystemInfo( si);
}
SYSTEM_INFO system_info() {
static SYSTEM_INFO si;
static std::once_flag flag;
std::call_once( flag, static_cast< void(*)( SYSTEM_INFO *) >( system_info_), & si);
return si;
}
std::size_t pagesize() {
return static_cast< std::size_t >( system_info().dwPageSize);
}
// Windows seams not to provide a limit for the stacksize
// libcoco uses 32k+4k bytes as minimum
bool stack_traits::is_unbounded() {
return true;
}
std::size_t stack_traits::page_size() {
return pagesize();
}
std::size_t stack_traits::default_size() {
return 128 * 1024;
}
// because Windows seams not to provide a limit for minimum stacksize
std::size_t stack_traits::minimum_size() {
return MIN_STACKSIZE;
}
// because Windows seams not to provide a limit for maximum stacksize
// maximum_size() can never be called (pre-condition ! is_unbounded() )
std::size_t stack_traits::maximum_size() {
assert( ! is_unbounded() );
return 1 * 1024 * 1024 * 1024; // 1GB
}
stack_context stack_traits::allocate(size_t size_) {
// calculate how many pages are required
const std::size_t pages(static_cast< std::size_t >( std::ceil( static_cast< float >( size_) / stack_traits::page_size() ) ) );
// add one page at bottom that will be used as guard-page
const std::size_t size__ = ( pages + 1) * stack_traits::page_size();
void * vp = ::VirtualAlloc( 0, size__, MEM_COMMIT, PAGE_READWRITE);
if ( ! vp) throw std::bad_alloc();
DWORD old_options;
const BOOL result = ::VirtualProtect(
vp, stack_traits::page_size(), PAGE_READWRITE | PAGE_GUARD /*PAGE_NOACCESS*/, & old_options);
assert( FALSE != result);
stack_context sctx;
sctx.size = size__;
sctx.sp = static_cast< char * >( vp) + sctx.size;
return sctx;
}
void stack_traits::deallocate( stack_context & sctx) {
assert( sctx.sp);
void * vp = static_cast< char * >( sctx.sp) - sctx.size;
::VirtualFree( vp, 0, MEM_RELEASE);
}
#else
// 128kb recommended stack size
// # define MINSIGSTKSZ (131072)
void pagesize_( std::size_t * size) {
// conform to POSIX.1-2001
* size = ::sysconf( _SC_PAGESIZE);
}
void stacksize_limit_( rlimit * limit) {
// conforming to POSIX.1-2001
::getrlimit( RLIMIT_STACK, limit);
}
std::size_t pagesize() {
static std::size_t size = 0;
static std::once_flag flag;
std::call_once( flag, pagesize_, & size);
return size;
}
rlimit stacksize_limit() {
static rlimit limit;
static std::once_flag flag;
std::call_once( flag, stacksize_limit_, & limit);
return limit;
}
bool stack_traits::is_unbounded() {
return RLIM_INFINITY == stacksize_limit().rlim_max;
}
std::size_t stack_traits::page_size() {
return pagesize();
}
std::size_t stack_traits::default_size() {
return 128 * 1024;
}
std::size_t stack_traits::minimum_size() {
return MINSIGSTKSZ;
}
std::size_t stack_traits::maximum_size() {
assert( ! is_unbounded() );
return static_cast< std::size_t >( stacksize_limit().rlim_max);
}
stack_context stack_traits::allocate(std::size_t size_) {
// calculate how many pages are required
const std::size_t pages(static_cast< std::size_t >( std::ceil( static_cast< float >( size_) / stack_traits::page_size() ) ) );
// add one page at bottom that will be used as guard-page
const std::size_t size__ = ( pages + 1) * stack_traits::page_size();
// conform to POSIX.4 (POSIX.1b-1993, _POSIX_C_SOURCE=199309L)
#if defined(MAP_ANON)
void * vp = ::mmap( 0, size__, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
#else
void * vp = ::mmap( 0, size__, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
#endif
if ( MAP_FAILED == vp) throw std::bad_alloc();
// conforming to POSIX.1-2001
const int result( ::mprotect( vp, stack_traits::page_size(), PROT_NONE) );
assert( 0 == result);
stack_context sctx;
sctx.size = size__;
sctx.sp = static_cast< char * >( vp) + sctx.size;
return sctx;
}
void stack_traits::deallocate(stack_context & sctx) {
assert( sctx.sp);
void * vp = static_cast< char * >( sctx.sp) - sctx.size;
// conform to POSIX.4 (POSIX.1b-1993, _POSIX_C_SOURCE=199309L)
::munmap( vp, sctx.size);
}
#endif
////////////////////////////////////////////////////////
CoroutineInfo::CoroutineInfo()
: _prev(NULL)
, _next(NULL)
// , _main(true)
, _scheduler(NULL)
, _uid(0)
, _eStatus(CORO_FREE)
// , _ctx_to(NULL)
{
}
CoroutineInfo::CoroutineInfo(CoroutineScheduler* scheduler)
: _prev(NULL)
, _next(NULL)
// , _main(false)
, _scheduler(scheduler)
, _uid(0)
, _eStatus(CORO_FREE)
// , _ctx_to(NULL)
{
}
CoroutineInfo::CoroutineInfo(CoroutineScheduler* scheduler, uint32_t iUid, stack_context stack_ctx)
: _prev(NULL)
, _next(NULL)
// , _main(false)
, _scheduler(scheduler)
, _uid(iUid)
, _eStatus(CORO_FREE)
, _stack_ctx(stack_ctx)
// , _ctx_to(NULL)
{
}
CoroutineInfo::~CoroutineInfo()
{
}
void CoroutineInfo::registerFunc(const std::function<void ()>& callback)
{
_callback = callback;
_init_func.coroFunc = CoroutineInfo::corotineProc;
_init_func.args = this;
// _ctx_to = make_fcontext(_stack_ctx.sp, _stack_ctx.size, CoroutineInfo::corotineEntry);
// jump_fcontext(&_ctx_from, _ctx_to, (intptr_t)this, false);
fcontext_t ctx = make_fcontext(_stack_ctx.sp, _stack_ctx.size, CoroutineInfo::corotineEntry);
transfer_t tf = jump_fcontext(ctx, this);
//实际的ctx
this->setCtx(tf.fctx);
}
void CoroutineInfo::setStackContext(stack_context stack_ctx)
{
_stack_ctx = stack_ctx;
}
void CoroutineInfo::corotineEntry(transfer_t tf)
{
CoroutineInfo * coro = static_cast< CoroutineInfo * >(tf.data);
Func func = coro->_init_func.coroFunc;
void* args = coro->_init_func.args;
// jump_fcontext(coro->_ctx_to, &(coro->_ctx_from), 0, false);
transfer_t t = jump_fcontext(tf.fctx, NULL);
coro->_scheduler->setMainCtx(t.fctx);
try
{
func(args, t);
}
catch(std::exception &ex)
{
TLOGERROR("[TARS][CoroutineInfo::corotineEntry exception:" << ex.what() << endl);
}
catch(...)
{
TLOGERROR("[TARS][CoroutineInfo::corotineEntry unknown exception." << endl);
}
}
void CoroutineInfo::corotineProc(void * args, transfer_t t)
{
CoroutineInfo *coro = (CoroutineInfo*)args;
try
{
std::function<void ()> cb = coro->_callback;
cb();
}
catch(std::exception &ex)
{
TLOGERROR("[TARS][CoroutineInfo::corotineProc exception:" << ex.what() << endl);
}
catch(...)
{
TLOGERROR("[TARS][CoroutineInfo::corotineProc unknown exception." << endl);
}
CoroutineScheduler* scheduler = coro->getScheduler();
scheduler->decUsedSize();
scheduler->moveToFreeList(coro);
scheduler->switchCoro(&(scheduler->getMainCoroutine()));
// scheduler->switchCoro(coro, &(scheduler->getMainCoroutine()));
TLOGERROR("[TARS][CoroutineInfo::corotineProc no come." << endl);
}
//////////////////////////////////////////////////////////////
CoroutineScheduler::CoroutineScheduler()
: _terminal(false)
, _poolSize(1000)
, _stackSize(128*1024)
, _currentSize(0)
, _usedSize(0)
, _uniqId(0)
, _handle(NULL)
, _currentCoro(NULL)
, _all_coro(NULL)
{
_all_coro = new CoroutineInfo*[_poolSize+1];
for(size_t i = 0; i <= _poolSize; ++i)
{
_all_coro[i] = NULL;
}
CoroutineInfo::CoroutineHeadInit(&_active);
CoroutineInfo::CoroutineHeadInit(&_avail);
CoroutineInfo::CoroutineHeadInit(&_inactive);
CoroutineInfo::CoroutineHeadInit(&_timeout);
CoroutineInfo::CoroutineHeadInit(&_free);
}
CoroutineScheduler::~CoroutineScheduler()
{}
void CoroutineScheduler::init(uint32_t iPoolSize, size_t iStackSize)
{
if(iPoolSize <= 0)
{
TLOGERROR("[TARS][[CoroutineScheduler::init iPoolSize <= 0." << endl);
return ;
}
_terminal = false;
_poolSize = iPoolSize;
_stackSize = iStackSize;
if(_poolSize <= 100)
{
_currentSize = _poolSize;
}
else
{
_currentSize = 100;
}
if(_all_coro != NULL)
{
delete [] _all_coro;
_all_coro = new CoroutineInfo*[_poolSize+1];
for(size_t i = 0; i <= _poolSize; ++i)
{
_all_coro[i] = NULL;
}
}
_usedSize = 0;
_uniqId = 0;
int iSucc = 0;
for(size_t i = 0; i < _currentSize; ++i)
{
CoroutineInfo *coro = new CoroutineInfo(this);
// stack_context s_ctx;
// int ret = _alloc.allocate(s_ctx, iStackSize);
// if(ret != 0)
// {
// TLOGERROR("[TARS][CoroutineScheduler::init iPoolSize:" << iPoolSize << "|iStackSize:" << iStackSize << "|i:" << i << endl);
// delete coro;
// coro = NULL;
// break;
// }
stack_context s_ctx = stack_traits::allocate(iStackSize);
coro->setStackContext(s_ctx);
uint32_t iId = generateId();
coro->setUid(iId);
coro->setStatus(CORO_FREE);
//_free.push_front(coro);
//_all.insert(make_pair(coro->getUid(), coro));
_all_coro[iId] = coro;
CoroutineInfo::CoroutineAddTail(coro, &_free);
++iSucc;
}
_currentSize = iSucc;
_mainCoro.setUid(0);
_mainCoro.setStatus(CORO_FREE);
_currentCoro = &_mainCoro;
TLOGDEBUG("[TARS][CoroutineScheduler::init iPoolSize:" << _poolSize << "|iCurrentSize:" << _currentSize << "|iStackSize:" << _stackSize << endl);
}
int CoroutineScheduler::increaseCoroPoolSize()
{
int iInc = ((_poolSize - _currentSize) > 100) ? 100 : (_poolSize - _currentSize);
if(iInc <= 0)
{
TLOGERROR("[TARS][CoroutineScheduler::increaseCoroPoolSize full iPoolSize:" << _poolSize << "|iCurrentSize:" << _currentSize << endl);
return -1;
}
int iSucc = 0;
for(int i = 0; i < iInc; ++i)
{
CoroutineInfo *coro = new CoroutineInfo(this);
uint32_t iId = generateId();
coro->setUid(iId);
coro->setStatus(CORO_FREE);
// stack_context s_ctx;
// int ret = _alloc.allocate(s_ctx, _stackSize);
// if(ret != 0)
// {
// TLOGERROR("[TARS][CoroutineScheduler::increaseCoroPoolSize iPoolSize:" << _poolSize << "|iStackSize:" << _stackSize << "|i:" << i << endl);
// delete coro;
// coro = NULL;
// break;
// }
stack_context s_ctx = stack_traits::allocate(_stackSize);
coro->setStackContext(s_ctx);
_all_coro[iId] = coro;
CoroutineInfo::CoroutineAddTail(coro, &_free);
++iSucc;
}
if(iSucc == 0)
{
TLOGERROR("[TARS][CoroutineScheduler::increaseCoroPoolSize cannot create iInc:" << iInc << "|iPoolSize:" << _poolSize << endl);
return -1;
}
_currentSize += iSucc;
return 0;
}
uint32_t CoroutineScheduler::createCoroutine(const std::function<void ()> &callback)
{
if(_usedSize >= _currentSize || CoroutineInfo::CoroutineHeadEmpty(&_free))
{
int iRet = increaseCoroPoolSize();
if(iRet != 0)
return 0;
}
CoroutineInfo *coro = _free._next;
assert(coro != NULL);
CoroutineInfo::CoroutineDel(coro);
_usedSize++;
coro->setStatus(CORO_AVAIL);
CoroutineInfo::CoroutineAddTail(coro, &_avail);
coro->registerFunc(callback);
return coro->getUid();
}
void CoroutineScheduler::run()
{
while(!_terminal)
{
if(CoroutineInfo::CoroutineHeadEmpty(&_avail) && CoroutineInfo::CoroutineHeadEmpty(&_active))
{
TC_ThreadLock::Lock lock(_monitor);
if(_activeCoroQueue.size() <= 0)
{
_monitor.timedWait(1000);
}
}
wakeupbytimeout();
wakeupbyself();
wakeup();
if(!CoroutineInfo::CoroutineHeadEmpty(&_active))
{
int iLoop = 100;
while(iLoop > 0 && !CoroutineInfo::CoroutineHeadEmpty(&_active))
{
CoroutineInfo *coro = _active._next;
assert(coro != NULL);
// switchCoro(&_mainCoro, coro);
switchCoro(coro);
--iLoop;
}
}
if(!CoroutineInfo::CoroutineHeadEmpty(&_avail))
{
CoroutineInfo *coro = _avail._next;
assert(coro != NULL);
// switchCoro(&_mainCoro, coro);
switchCoro(coro);
}
if(_usedSize == 0)
break;
}
destroy();
}
void CoroutineScheduler::tars_run()
{
if(!_terminal)
{
wakeupbytimeout();
wakeupbyself();
wakeup();
if(!CoroutineInfo::CoroutineHeadEmpty(&_active))
{
int iLoop = 100;
while(iLoop > 0 && !CoroutineInfo::CoroutineHeadEmpty(&_active))
{
CoroutineInfo *coro = _active._next;
assert(coro != NULL);
// switchCoro(&_mainCoro, coro);
switchCoro(coro);
--iLoop;
}
}
if(!CoroutineInfo::CoroutineHeadEmpty(&_avail))
{
int iLoop = 100;
while(iLoop > 0 && !CoroutineInfo::CoroutineHeadEmpty(&_avail))
{
CoroutineInfo *coro = _avail._next;
assert(coro != NULL);
// switchCoro(&_mainCoro, coro);
switchCoro(coro);
--iLoop;
}
}
}
}
void CoroutineScheduler::yield(bool bFlag)
{
if(bFlag)
{
putbyself(_currentCoro->getUid());
}
moveToInactive(_currentCoro);
// switchCoro(_currentCoro, &_mainCoro);
switchCoro(&_mainCoro);
}
void CoroutineScheduler::sleep(int iSleepTime)
{
int64_t iNow = TNOWMS;
int64_t iTimeout = iNow + (iSleepTime >= 0 ? iSleepTime : -iSleepTime);
_timeoutCoroId.insert(make_pair(iTimeout, _currentCoro->getUid()));
moveToTimeout(_currentCoro);
// switchCoro(_currentCoro, &_mainCoro);
switchCoro(&_mainCoro);
}
void CoroutineScheduler::putbyself(uint32_t iCoroId)
{
if(!_terminal)
{
_needActiveCoroId.push_back(iCoroId);
}
}
void CoroutineScheduler::wakeupbyself()
{
if(!_terminal)
{
if(_needActiveCoroId.size() > 0)
{
list<uint32_t>::iterator it = _needActiveCoroId.begin();
while(it != _needActiveCoroId.end())
{
CoroutineInfo *coro = _all_coro[*it];
assert(coro != NULL);
moveToAvail(coro);
++it;
}
_needActiveCoroId.clear();
}
}
}
void CoroutineScheduler::put(uint32_t iCoroId)
{
if(!_terminal)
{
_activeCoroQueue.push_back(iCoroId);
if(_handle)
{
_handle->notifyFilter();
}
else
{
TC_ThreadLock::Lock lock(_monitor);
_monitor.notifyAll();
}
}
}
void CoroutineScheduler::wakeup()
{
if(!_terminal)
{
if(_activeCoroQueue.size() > 0)
{
TC_ThreadQueue<uint32_t, deque<uint32_t> >::queue_type coroIds;
_activeCoroQueue.swap(coroIds);
TC_ThreadQueue<uint32_t, deque<uint32_t> >::queue_type::iterator it = coroIds.begin();
TC_ThreadQueue<uint32_t, deque<uint32_t> >::queue_type::iterator itEnd = coroIds.end();
while(it != itEnd)
{
CoroutineInfo *coro = _all_coro[*it];
assert(coro != NULL);
moveToActive(coro);
++it;
}
}
}
}
void CoroutineScheduler::wakeupbytimeout()
{
if(!_terminal)
{
if(_timeoutCoroId.size() > 0)
{
int64_t iNow = TNOWMS;
while(true)
{
multimap<int64_t, uint32_t>::iterator it = _timeoutCoroId.begin();
if(it == _timeoutCoroId.end() || it->first > iNow)
break;
CoroutineInfo *coro = _all_coro[it->second];
assert(coro != NULL);
moveToActive(coro);
_timeoutCoroId.erase(it);
}
}
}
}
void CoroutineScheduler::terminate()
{
_terminal = true;
if(_handle)
{
_handle->notifyFilter();
}
else
{
TC_ThreadLock::Lock lock(_monitor);
_monitor.notifyAll();
}
}
uint32_t CoroutineScheduler::generateId()
{
while (++_uniqId < 1);
assert(_uniqId <= _poolSize);
return _uniqId;
}
// void CoroutineScheduler::switchCoro(CoroutineInfo *from, CoroutineInfo *to)
void CoroutineScheduler::switchCoro(CoroutineInfo *to)
{
_currentCoro = to;
// jump_fcontext(from->getCtx(), to->getCtx(), 0, false);
transfer_t t = jump_fcontext(to->getCtx(), NULL);
to->setCtx(t.fctx);
}
void CoroutineScheduler::moveToActive(CoroutineInfo *coro, bool bFlag)
{
if(coro->getStatus() == CORO_INACTIVE)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_ACTIVE);
CoroutineInfo::CoroutineAddTail(coro, &_active);
}
else if(coro->getStatus() == CORO_TIMEOUT)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_ACTIVE);
CoroutineInfo::CoroutineAddTail(coro, &_active);
}
else
{
TLOGERROR("[TARS][CoroutineScheduler::moveToActive ERROR|iCoroId:" << coro->getUid() << "|tyep:" << coro->getStatus() << endl);
}
}
void CoroutineScheduler::moveToAvail(CoroutineInfo *coro)
{
if(coro->getStatus() == CORO_INACTIVE)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_AVAIL);
CoroutineInfo::CoroutineAddTail(coro, &_avail);
}
else
{
TLOGERROR("[TARS][CoroutineScheduler::moveToAvail ERROR:|iCoroId:" << coro->getUid() << "|tyep:" << coro->getStatus() << endl);
}
}
void CoroutineScheduler::moveToInactive(CoroutineInfo *coro)
{
if(coro->getStatus() == CORO_ACTIVE)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_INACTIVE);
CoroutineInfo::CoroutineAddTail(coro, &_inactive);
}
else if(coro->getStatus() == CORO_AVAIL)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_INACTIVE);
CoroutineInfo::CoroutineAddTail(coro, &_inactive);
}
else
{
TLOGERROR("[TARS][CoroutineScheduler::moveToInactive ERROR|iCoroId:" << coro->getUid() << "|tyep:" << coro->getStatus() << endl);
}
}
void CoroutineScheduler::moveToTimeout(CoroutineInfo *coro)
{
if(coro->getStatus() == CORO_ACTIVE)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_TIMEOUT);
CoroutineInfo::CoroutineAddTail(coro, &_timeout);
}
else if(coro->getStatus() == CORO_AVAIL)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_TIMEOUT);
CoroutineInfo::CoroutineAddTail(coro, &_timeout);
}
else
{
TLOGERROR("[TARS][CoroutineScheduler::moveToTimeout ERROR|iCoroId:" << coro->getUid() << "|tyep:" << coro->getStatus() << endl);
}
}
void CoroutineScheduler::moveToFreeList(CoroutineInfo *coro)
{
if(coro->getStatus() == CORO_ACTIVE)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_FREE);
CoroutineInfo::CoroutineAddTail(coro, &_free);
}
else if(coro->getStatus() == CORO_AVAIL)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_FREE);
CoroutineInfo::CoroutineAddTail(coro, &_free);
}
else if(coro->getStatus() == CORO_INACTIVE)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_FREE);
CoroutineInfo::CoroutineAddTail(coro, &_free);
}
else if(coro->getStatus() == CORO_TIMEOUT)
{
CoroutineInfo::CoroutineDel(coro);
coro->setStatus(CORO_FREE);
CoroutineInfo::CoroutineAddTail(coro, &_free);
}
else
{
TLOGERROR("[TARS][CoroutineScheduler::moveToFreeList ERROR: already free|iCoroId:" << coro->getUid() << "|tyep:" << coro->getStatus() << endl);
}
}
void CoroutineScheduler::destroy()
{
if(_all_coro)
{
for(size_t i = 1; i <= _poolSize; i++)
{
if(_all_coro[i])
{
stack_traits::deallocate(_all_coro[i]->getStackContext());
}
}
delete [] _all_coro;
}
}
/////////////////////////////////////////////////////////
Coroutine::Coroutine()
: _coroSched(NULL)
, _num(1)
, _maxNum(128)
, _stackSize(128*1024)
{
}
Coroutine::~Coroutine()
{
if(isAlive())
{
terminate();
getThreadControl().join();
}
}
void Coroutine::setCoroInfo(uint32_t iNum, uint32_t iMaxNum, size_t iStackSize)
{
_maxNum = (iMaxNum > 0 ? iMaxNum : 1);
_num = (iNum > 0 ? (iNum <= _maxNum ? iNum : _maxNum) : 1);
_stackSize = (iStackSize >= pagesize() ? iStackSize : pagesize());
}
void Coroutine::run()
{
initialize();
handleCoro();
destroy();
}
void Coroutine::terminate()
{
if(_coroSched)
{
_coroSched->terminate();
}
}
void Coroutine::handleCoro()
{
_coroSched = new CoroutineScheduler();
_coroSched->init(_maxNum, _stackSize);
ServantProxyThreadData * pSptd = ServantProxyThreadData::getData();
assert(pSptd != NULL);
pSptd->_sched = _coroSched;
for(uint32_t i = 0; i < _num; ++i)
{
_coroSched->createCoroutine(std::bind(&Coroutine::coroEntry, this));
}
_coroSched->run();
delete _coroSched;
_coroSched = NULL;
}
void Coroutine::coroEntry(Coroutine *pCoro)
{
try
{
pCoro->handle();
}
catch(exception &ex)
{
TLOGERROR("[TARS][[Coroutine::coroEntry exception:" << ex.what() << "]" << endl);
}
catch(...)
{
TLOGERROR("[TARS][[Coroutine::coroEntry unknown exception]" << endl);
}
}
uint32_t Coroutine::createCoroutine(const std::function<void ()> &coroFunc)
{
if(_coroSched)
{
return _coroSched->createCoroutine(coroFunc);
}
else
{
TLOGERROR("[TARS][[Coroutine::createCoroutine coro sched no init]" << endl);
}
return -1;
}
void Coroutine::yield()
{
if(_coroSched)
{
_coroSched->yield();
}
else
{
throw CoroutineException("[TARS][[Coroutine::yield coro sched no init]");
}
}
void Coroutine::Sleep(int iSleepTime)
{
if(_coroSched)
{
_coroSched->sleep(iSleepTime);
}
else
{
throw CoroutineException("[TARS][[Coroutine::yield coro sched no init]");
}
}
}