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#include "PICA_nodewait.h"
#include "PICA_log.h"
#include "PICA_common.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef WIN32
#include <windows.h>
#else
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#endif
struct nodewait *nodewait_list;
struct nodewait *nodewait_list_addnew()
{
struct nodewait *nw;
nw = (struct nodewait*)calloc(1, sizeof(struct nodewait));
if (!nw)
return 0;
nw->next = nodewait_list;
nodewait_list = nw;
nw->state = PICA_NODEWAIT_NEW;
return nw;
}
void nodewait_list_delete(struct nodewait *nw)
{
struct nodewait **pp = &nodewait_list;
struct nodewait *p = nodewait_list;
PICA_debug3("nodewait_list_delete(%p)", nw);
while(p)
{
if (p == nw)
{
*pp = nw->next;
//
//free resources
//
free(nw);
return;
}
pp = &p->next;
p = p->next;
}
}
#ifdef WIN32
static DWORD WINAPI nodewait_thread (void *arg)
#else
static void *nodewait_thread (void *arg)
#endif
{
struct nodewait *nw = (struct nodewait *)arg;
struct addrinfo h,*r,*ap;
char portbuf[8];
nw->state = PICA_NODEWAIT_RUNNING;
memset(&h,0,sizeof(struct addrinfo));
#ifdef AI_IDN
#define H_AI_FLAGS (AI_ADDRCONFIG | AI_IDN)
#else
#define H_AI_FLAGS AI_ADDRCONFIG
#endif
h.ai_flags=H_AI_FLAGS;
h.ai_family=AF_INET;//CONF - IPv4, IPv6, IPv4 then IPv6, IPv6 then IPv4
h.ai_socktype=SOCK_STREAM;
h.ai_protocol=IPPROTO_TCP;
sprintf(portbuf,"%u",nw->addr.port);
if (0!=getaddrinfo(nw->addr.addr, portbuf, &h, &r))
return 0;
ap = r;
while(ap)
{
nw->nc.sck=socket(ap->ai_family,ap->ai_socktype,ap->ai_protocol);
if (nw->nc.sck==SOCKET_ERROR)
{
ap=ap->ai_next;
continue;
}
if (0 != connect(nw->nc.sck,ap->ai_addr,ap->ai_addrlen))
{
ap=ap->ai_next;
CLOSE(nw->nc.sck);
continue;
}
else
{
break;
}
}
if (ap)
{
nw->nc.addr=*((struct sockaddr_in*)(ap->ai_addr));
freeaddrinfo(r);
nw->state = PICA_NODEWAIT_FINISHED_OK;
return 1;
}
freeaddrinfo(r);
nw->state = PICA_NODEWAIT_FINISHED_ERR;
return 0;
}
void nodewait_start_connection(struct PICA_nodeaddr *a)
{
struct nodewait *nw;
#ifndef WIN32
pthread_t thr;
pthread_attr_t attr;
#else
DWORD thread_id;
HANDLE thread_h;
#endif
nw = nodewait_list_addnew();
if (!nw)
return;
nw ->addr = *a;
PICA_debug1("starting connection to node %.255s %u ...", nw->addr.addr, nw->addr.port);
#ifndef WIN32
if (0 != pthread_attr_init(&attr))
PICA_error("pthread_attr_init() call failed.");
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (0 != pthread_create(&thr, &attr, nodewait_thread, (void*)nw))
PICA_error("unable to create thread: %s", strerror(errno));
pthread_attr_destroy(&attr);
#else
thread_h = CreateThread(NULL, 4096, nodewait_thread, (void*)nw, 0, &thread_id);
if (NULL != thread_h)
CloseHandle(thread_h);
else
PICA_error("unable to create thread: %u", GetLastError());
#endif
}
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