void restart_child_process(pid_t pid)
{
bool process_is_too_short = false;
processLock.Lock();
std::map<pid_t,time_t>::iterator it = processes.find(pid);
if (it!=processes.end()) {
if (time(NULL) - (*it).second < 5) {
process_is_too_short = true;
}
processes.erase(it);
}
processLock.Unlock();
#ifdef _WIN32
CloseHandle(pid);
#endif
if (process_is_too_short) {
sleep(1);
}
if(program_quit){
return;
}
if(!::createProcess(&ls, NULL, argv, NULL, RDSTD_INPUT)){
debug("cann't create process\n");
return ;
}
pid = ls.process.stealPid();
processLock.Lock();
processes.insert(pair<pid_t,time_t>(pid,time(NULL)));
processLock.Unlock();
return;
}
int checkResponse(KHttpRequest *rq,KHttpObject *obj)
{
int action = kaccess[RESPONSE].check(rq,obj);
#ifdef ENABLE_KSAPI_FILTER
if (action == JUMP_ALLOW && conf.gvm->globalVh.hfm) {
action = conf.gvm->globalVh.hfm->check_response(rq);
}
#endif
#ifndef HTTP_PROXY
#ifdef ENABLE_USER_ACCESS
if (action == JUMP_ALLOW && rq->svh) {
action = rq->svh->vh->checkResponse(rq);
#ifdef ENABLE_KSAPI_FILTER
if (action==JUMP_ALLOW && rq->svh->vh->hfm) {
action = rq->svh->vh->hfm->check_response(rq);
}
#endif
}
#endif
#endif
if (action == JUMP_DENY) {
KMutex *lock = obj->getLock();
lock->Lock();
if (obj->refs == 1) {
KBuffer::destroy(obj->data->bodys);
obj->data->bodys = NULL;
set_obj_size(obj, 0);
}
lock->Unlock();
}
return action;
}
int del_filter_time()
{
int uid=0;
unsigned src_ip;
int recv_size;
int send_size;
pthread_t pid=pthread_self();
filter_time_map_t::iterator it;
filter_time_lock.Lock();
it=filter_time_list.find(pid);
if(it==filter_time_list.end())
goto done;
uid=(*it).second.m_state.uid;
src_ip=(*it).second.m_state.src_ip;
recv_size=(*it).second.server->recv_size;
send_size=(*it).second.server->send_size;
filter_time_list.erase(it);
filter_time_lock.Unlock();
#ifndef DISABLE_USER
m_user.UpdateSendRecvSize(src_ip,recv_size,send_size,uid);
#endif
return uid;
done:
filter_time_lock.Unlock();
return uid;
}
void add_filter_time(filter_time &m_filter_time)
{
m_filter_time.start_time=time(NULL);
pthread_t pid=pthread_self();
filter_time_lock.Lock();
filter_time_list[pid]=m_filter_time;
filter_time_lock.Unlock();
}
static KApiDso *getApiRedirect(u_short id) {
KApiDso *rd = NULL;
std::map<u_short, KApiDso *>::iterator it;
lock.Lock();
it = apis.find(id);
if (it != apis.end()) {
rd = (*it).second;
//rd->addRef();
}
lock.Unlock();
return rd;
}
static bool loadApiRedirect(const char *path,u_short id) {
KApiDso *rd = new KApiDso;
rd->path = path;
if (!rd->load()) {
delete rd;
return false;
}
lock.Lock();
apis[id] = rd;
lock.Unlock();
return true;
}
FUNC_TYPE FUNC_CALL swapin_thread(void *param)
{
for (;;) {
KHttpRequest *rq = NULL;
swapinQueueLock.Lock();
if (swapinQueue.size()<=0) {
current_swapin_worker--;
swapinQueueLock.Unlock();
break;
}
rq = *swapinQueue.begin();
swapinQueue.pop_front();
swapinQueueLock.Unlock();
handle_request_swapin(rq);
}
KTHREAD_RETURN;
}
/*
异步发送物件
rq->filter_flags=RQ_SWAP_OLD_OBJ则发送rq->ctx->old_obj
否则就发送rq->ctx->obj
同步函数为:sendHttpObject,完成相同的功能
*/
bool asyncSendHttpObject(KHttpRequest *rq)
{
//debug("asyncSendHttpObject %p\n",rq);
kassert(!TEST(rq->flags,RQ_SYNC));
//assert(rq->op != STAGE_OP_SYNC);
if (TEST(rq->filter_flags,RQ_SWAP_OLD_OBJ)) {
rq->ctx->popObj();
CLR(rq->filter_flags,RQ_SWAP_OLD_OBJ);
}
KHttpObject *obj = rq->ctx->obj;
assert(obj);
//assert(rq->fetchObj || TEST(rq->workModel,WORK_MODEL_MANAGE) || rq->svh);
if (!TEST(obj->index.flags,FLAG_IN_MEM)) {
KMutex *lock = obj->getLock();
rq->c->removeRequest(rq);
lock->Lock();
if (obj->data==NULL) {
#ifdef ENABLE_DISK_CACHE
obj->data = new KHttpObjectBody();
obj->data->type = SWAPING_OBJECT;
obj->data->os = new KHttpObjectSwaping;
lock->Unlock();
stage_swapin(rq);
return false;
#else
lock->Unlock();
SET(obj->index.flags,FLAG_DEAD);
klog(KLOG_ERR,"BUG!! obj is not in memory.");
assert(false);
stageEndRequest(rq);
return false;
#endif
} else if(obj->data->type == SWAPING_OBJECT) {
//已经有其它线程在swap
KHttpObjectSwaping *os = obj->data->os;
assert(os);
os->queue.push_back(rq);
lock->Unlock();
return false;
}
lock->Unlock();
}
sendMemoryObject(rq,obj);
return true;
}
void make_ip(unsigned long ip,char *ips,bool mask)
{
struct in_addr s;
memset(ips,0,18);
ips[0]='/';
int skip=1;
if(!mask)
skip=0;
s.s_addr=ip;
if(ip==0)
strcpy(ips,"*");
else if(ip==~0)
ips[0]=0;
else if(ip==1)
strcpy(ips,"localhost");
else{
m_make_ip_lock.Lock();
strncpy(ips+skip,inet_ntoa(s),16);
m_make_ip_lock.Unlock();
}
}
KTHREAD_FUNCTION handle_request_swapin(void *param)
{
KHttpRequest *rq = (KHttpRequest *)param;
KHttpObject *obj = rq->ctx->obj;
assert(obj);
assert(obj->data->type == SWAPING_OBJECT);
KHttpObjectBody *osData = obj->data;
assert(osData->os);
KHttpObjectBody *data = new KHttpObjectBody();
bool result = obj->swapin(data);
/**
* swap in进来的时候是不锁的，这样尽可能的保证畅通，因为swap in可能会比较长时间
*/
KMutex *lock = obj->getLock();
lock->Lock();
obj->data = data;
if (!result) {
SET(obj->index.flags,FLAG_DEAD|OBJ_INDEX_UPDATE);
} else {
SET(obj->index.flags,FLAG_IN_MEM);
}
lock->Unlock();
if (result) {
/////////[144]
cache.getHash(obj->h)->incSize(obj->index.content_length);
}
assert(osData);
handle_swapin_result(rq,result);
KHttpObjectSwaping *os = osData->os;
std::list<KHttpRequest *>::iterator it;
for (it=os->queue.begin();it!=os->queue.end();it++) {
handle_swapin_result((*it),result);
}
os->queue.clear();
delete osData;
KTHREAD_RETURN;
}
int KGLogPrintf(KGLOG_PRIORITY Priority, const char cszFormat[], ...)
{
if ((KGLOG_MASK(KGLOG_PRI(Priority)) & gs_nPriorityMask) == 0)
return true;
int nResult = false;
int nRetCode = false;
int nLockFlag = false;
int nBufferLen = 0;
char szBuffer[1024];
time_t tmtNow = 0;
struct tm tmNow;
tmtNow = time(NULL);
localtime_r(&tmtNow, &tmNow);
nRetCode = _snprintf(
szBuffer, sizeof(szBuffer) - 1,
"%d%2.2d%2.2d-%2.2d%2.2d%2.2d<%s:%p>: ",
tmNow.tm_year + 1900,
tmNow.tm_mon + 1,
tmNow.tm_mday,
tmNow.tm_hour,
tmNow.tm_min,
tmNow.tm_sec,
gs_caszPriorityString[KGLOG_PRI(Priority)],
KGThread_GetSelfId()
);
szBuffer[sizeof(szBuffer) - 1] = '\0';
if ((nRetCode != -1) && (nRetCode < (sizeof(szBuffer) - 1)))
nBufferLen = nRetCode;
else
nBufferLen = sizeof(szBuffer) - 1;
va_list marker;
va_start(marker, cszFormat);
nRetCode = vsnprintf(szBuffer + nBufferLen, sizeof(szBuffer) - 1 - nBufferLen, cszFormat, marker);
va_end(marker);
szBuffer[sizeof(szBuffer) - 1] = '\0';
if ((nRetCode != -1) && (nRetCode < (sizeof(szBuffer) - 1)))
nBufferLen += nRetCode;
else
nBufferLen = sizeof(szBuffer) - 1;
if (
(szBuffer[nBufferLen - 1] != '\n') &&
(szBuffer[nBufferLen - 1] != '\r')
)
{
if (nBufferLen >= (sizeof(szBuffer) - 1)) // if full
nBufferLen--;
szBuffer[nBufferLen] = '\n';
szBuffer[nBufferLen + 1] = '\0';
nBufferLen++;
}
if (gs_LogParam.Options & KGLOG_OPTION_CONSOLE)
{
fputs(szBuffer, stdout);
}
if (gs_LogParam.Options & KGLOG_OPTION_STDERR)
{
fputs(szBuffer, stderr);
}
if (gs_LogParam.Options & KGLOG_OPTION_FILE)
{
gs_Lock.Lock();
nLockFlag = true;
if (
gs_nIsFirstTimeToWriteLog ||
(gs_nCurrentLine >= gs_LogParam.nMaxLineEachFile) ||
(!(
(gs_tmLastChangeFile.tm_mday == tmNow.tm_mday) &&
(gs_tmLastChangeFile.tm_mon == tmNow.tm_mon) &&
(gs_tmLastChangeFile.tm_year == tmNow.tm_year)
))
)
{
gs_nIsFirstTimeToWriteLog = false;
gs_tmLastChangeFile = tmNow;
nRetCode = _ChangeLogFile();
KGLOG_PROCESS_ERROR(nRetCode);
gs_nCurrentLine = 0;
}
if (gs_nLogFile != -1)
{
nRetCode = _write(gs_nLogFile, szBuffer, nBufferLen);
if (nRetCode == -1)
{
puts("warning : error on write log file, please check your hard disk!");
}
}
++gs_nCurrentLine;
}
nResult = true;
Exit0:
if (nLockFlag)
{
gs_Lock.Unlock();
nLockFlag = false;
}
return nResult;
}
bool sendHttpObject(KHttpRequest *rq, KHttpObject *obj) {
rq->state = STATE_RECV;
//assert(rq->op == STAGE_OP_SYNC);
buff * send_buffer = NULL;//obj->container;
buff *hdrs_to_send = NULL;//alloc_buff(CHUNK_SIZE); /* most headers fit this (?) */
//bool send_unknow_length = false;
INT64 send_len = 0;//obj->index.content_length;
INT64 start = 0;
unsigned this_send_len = 0;
//INT64 body_size = 0;
// bool chunked_and_http_1_0=false;
bool result = true;
// status_code = obj->data->status_code;
INT64 content_len = 0;
assert(!TEST(obj->index.flags,ANSW_CHUNKED));
KMutex *lock = obj->getLock();
lock->Lock();
#ifdef ENABLE_DISK_CACHE
if (obj->data==NULL) {
assert(TEST(obj->index.flags,FLAG_IN_DISK));
KHttpObjectBody *data = new KHttpObjectBody();
obj->data = data;
if (!obj->swapin(data)) {
SET(obj->index.flags,FLAG_DEAD|OBJ_INDEX_UPDATE);
lock->Unlock();
cache.dead(obj);
//objList[obj->list_state].dead(obj);
return send_error(rq, NULL, STATUS_SERVER_ERROR,
"Cann't swap in object!");
} else {
SET(obj->index.flags,FLAG_IN_MEM);
/////////[184]
cache.getHash(obj->h)->incSize(obj->index.content_length);
}
}
#endif
send_buffer = obj->data->bodys;
content_len = obj->index.content_length;
lock->Unlock();
send_len = content_len;
KBuffer headerBuffer(2048);
build_obj_header(rq, obj, content_len,start, send_len);
hdrs_to_send = headerBuffer.stealBuffFast();
result = send_buff(rq, hdrs_to_send) == STREAM_WRITE_SUCCESS;
KBuffer::destroy(hdrs_to_send);
if (TEST(obj->index.flags,FLAG_NO_BODY) || rq->meth == METH_HEAD || !result
|| start == -1) {
/*
* do not need send body
*/
return result;
}
while (send_buffer != NULL) {
if ((INT64) send_buffer->used <= start) {
start -= send_buffer->used;
goto next_buffer;
}
//if (!send_unknow_length) {
if (send_len <= 0){
break;
}
if (send_len > (INT64) send_buffer->used - start) {
this_send_len = send_buffer->used - (unsigned) start;
} else {
this_send_len = (int) send_len;
}
if (!rq->write_all(send_buffer->data + start, this_send_len)) {
result = false;
break;
}
//rq->send_size += this_send_len;
start = 0;
//if (!send_unknow_length){
send_len -= this_send_len;
//}
next_buffer: send_buffer = send_buffer->next;
}
if (result) {
assert(send_len==0);
}
return result;
}
unsigned KDnsCache::GetName(const char *name)
{
struct hostent he_b;
int he_errno=0;
int rc = 0;
struct hostent *he_x=NULL;
struct hostent *h=NULL;
unsigned long ip4_addr;
DNSMAP_T::iterator it;
bool allnum=true;
for(int i=0;i<strlen(name);i++){
if(name[i]!='.' && (name[i]<'0' || name[i]>'9')){
allnum=false;
break;
}
}
if(allnum){
// printf("name=%s is allnum.\n",name);
return (unsigned)inet_addr(name);
// return (unsigned)s.s_addr;
}
m_lock.Lock();
it=m_dns.find(name);
if(it!=m_dns.end()){
ip4_addr=(*it).second.ip;
m_lock.Unlock();
// printf("get name in cache:%s\n",name);
/* if((*it).second.ip<=0){
#ifdef HAVE_SYSLOG_H
syslog(LOG_ERR,"[KDNSCACHE]name :%s in cache value=%d",name,(*it).second.ip);
#endif
}
*/
return ip4_addr;//(*it).second.ip;
}
m_lock.Unlock();
//h=gethostbyname(name);
//printf("call gethostbyname_r for look %s\n",name);
DNS_T m_dns_tmp;
#ifdef HAVE_GETHOSTBYNAME_R
char he_strb[2048];
rc = gethostbyname_r(name, &he_b, he_strb, sizeof(he_strb),
&he_x,
&he_errno);
if(rc!=0||he_errno!=0){
syslog(LOG_ERR,"[KDNSCACHE]name :%s is error,rc=%d,he_errno=%d.\n",name,rc,he_errno);
return 0;
}
m_dns_tmp.ip=*((unsigned long *)he_b.h_addr);
#else
#ifndef _WIN32
m_gethostbyname_lock.Lock();
#endif
h=gethostbyname(name);
if(h==NULL){
m_gethostbyname_lock.Unlock();
return 0;
}
m_dns_tmp.ip=*((unsigned long *)h->h_addr);
#ifndef _WIN32
m_gethostbyname_lock.Unlock();
#endif
#endif
m_dns_tmp.create_time=time(NULL);
m_lock.Lock();
m_dns.insert(make_pair<string,DNS_T>(name,m_dns_tmp));
m_lock.Unlock();
return m_dns_tmp.ip;
err:
m_lock.Unlock();
return 0;
}
BOOL KIDSequence::GenerateID(const char cszSequenceName[], int nPrefetch, uint64_t* puRetID)
{
BOOL bResult = false;
int nRetCode = false;
KID_PREFETCH_INFO* pPrefetch = NULL;
MYSQL_RES* pQueryRes = NULL;
uint64_t uStartID = 0;
my_ulonglong uRowCount = 0;
MYSQL_ROW Row;
char szQuery[256];
KID_PREFETCH_TABLE::iterator it;
std::pair<KID_PREFETCH_TABLE::iterator, BOOL> InsRet;
assert(cszSequenceName);
assert(puRetID);
assert(m_pDBHandle);
assert(nPrefetch >= 1);
m_Mutex.Lock();
it = m_PrefetchTable.find(cszSequenceName);
if (it != m_PrefetchTable.end())
{
pPrefetch = &it->second;
}
else
{
InsRet = m_PrefetchTable.insert(std::make_pair(cszSequenceName, KID_PREFETCH_INFO()));
KGLOG_PROCESS_ERROR(InsRet.second);
pPrefetch = &InsRet.first->second;
pPrefetch->uIDEnd = 0;
pPrefetch->uNextID = 0;
}
if (pPrefetch->uNextID < pPrefetch->uIDEnd)
goto Exit1;
while(true)
{
nRetCode = snprintf(
szQuery,
sizeof(szQuery),
"select %s from %s where %s = '%s'",
SEQ_CURRENT_ID, SEQ_TABLE_NAME, SEQ_NAME,
cszSequenceName
);
KGLOG_PROCESS_ERROR(nRetCode > 0 && nRetCode < (int)sizeof(szQuery));
nRetCode = DoQuery(szQuery);
KGLOG_PROCESS_ERROR(nRetCode);
if (pQueryRes)
{
mysql_free_result(pQueryRes);
pQueryRes = NULL;
}
pQueryRes = mysql_store_result(m_pDBHandle);
KGLOG_PROCESS_ERROR(pQueryRes);
uRowCount = mysql_num_rows(pQueryRes);
if (uRowCount == 0)
{
nRetCode = snprintf(
szQuery, sizeof(szQuery),
"insert into %s (%s, %s) values('%s', 1)",
SEQ_TABLE_NAME, SEQ_NAME, SEQ_CURRENT_ID,
cszSequenceName
);
KGLOG_PROCESS_ERROR(nRetCode > 0 && nRetCode < (int)sizeof(szQuery));
nRetCode = DoQuery(szQuery);
KGLOG_PROCESS_ERROR(nRetCode);
continue;
}
Row = mysql_fetch_row(pQueryRes);
KGLOG_PROCESS_ERROR(Row);
assert(Row[0]);
uStartID = (uint64_t)strtoull(Row[0], NULL, 10);
KGLOG_PROCESS_ERROR(uStartID < ULLONG_MAX - nPrefetch);
nRetCode = snprintf(
szQuery,
sizeof(szQuery),
"update %s set %s = %s + %d where %s = '%s' and %s = %llu",
SEQ_TABLE_NAME, SEQ_CURRENT_ID, SEQ_CURRENT_ID, nPrefetch,
SEQ_NAME, cszSequenceName, SEQ_CURRENT_ID, uStartID
);
KGLOG_PROCESS_ERROR(nRetCode > 0 && nRetCode < (int)sizeof(szQuery));
nRetCode = DoQuery(szQuery);
KGLOG_PROCESS_ERROR(nRetCode);
nRetCode = (int)mysql_affected_rows(m_pDBHandle);
if (nRetCode == 1)
break;
}
pPrefetch->uIDEnd = uStartID + nPrefetch;
pPrefetch->uNextID = uStartID;
Exit1:
*puRetID = pPrefetch->uNextID++;
bResult = true;
Exit0:
if (pQueryRes)
{
mysql_free_result(pQueryRes);
pQueryRes = NULL;
}
m_Mutex.Unlock();
return bResult;
}