/*
* gethostbyname_thread() resolves a name, calls the Curl_addrinfo4_callback
* and then exits.
*
* For builds without ARES/ENABLE_IPV6, create a resolver thread and wait on
* it.
*/
static unsigned __stdcall gethostbyname_thread (void *arg)
{
struct connectdata *conn = (struct connectdata*) arg;
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
struct hostent *he;
int rc;
/* Sharing the same _iob[] element with our parent thread should
* hopefully make printouts synchronised. I'm not sure it works
* with a static runtime lib (MSVC's libc.lib).
*/
*stderr = *td->stderr_file;
WSASetLastError (conn->async.status = NO_DATA); /* pending status */
he = gethostbyname (conn->async.hostname);
if (he) {
Curl_addrinfo4_callback(conn, CURL_ASYNC_SUCCESS, he);
rc = 1;
}
else {
Curl_addrinfo4_callback(conn, (int)WSAGetLastError(), NULL);
rc = 0;
}
TRACE(("Winsock-error %d, addr %s\n", conn->async.status,
he ? inet_ntoa(*(struct in_addr*)he->h_addr) : "unknown"));
return (rc);
/* An implicit _endthreadex() here */
}
/*
* gethostbyname_thread() resolves a name, calls the Curl_addrinfo4_callback
* and then exits.
*
* For builds without ARES/ENABLE_IPV6, create a resolver thread and wait on
* it.
*/
static unsigned __stdcall gethostbyname_thread (void *arg)
{
struct connectdata *conn = (struct connectdata*) arg;
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
struct hostent *he;
int rc = 0;
/* Duplicate the passed mutex handle.
* This allows us to use it even after the container gets destroyed
* due to a resolver timeout.
*/
HANDLE mutex_waiting = NULL;
HANDLE curr_proc = GetCurrentProcess();
if (!DuplicateHandle(curr_proc, td->mutex_waiting,
curr_proc, &mutex_waiting, 0, FALSE,
DUPLICATE_SAME_ACCESS)) {
/* failed to duplicate the mutex, no point in continuing */
return -1;
}
/* Sharing the same _iob[] element with our parent thread should
* hopefully make printouts synchronised. I'm not sure it works
* with a static runtime lib (MSVC's libc.lib).
*/
#ifndef _WIN32_WCE
*stderr = *td->stderr_file;
#endif
WSASetLastError (conn->async.status = NO_DATA); /* pending status */
he = gethostbyname (conn->async.hostname);
/* is the thread initiator still waiting for us ? */
if (WaitForSingleObject(mutex_waiting, 0) == WAIT_TIMEOUT) {
/* yes, it is */
/* Mark that we have obtained the information, and that we are
* calling back with it.
*/
SetEvent(td->event_resolved);
if (he) {
rc = Curl_addrinfo4_callback(conn, CURL_ASYNC_SUCCESS, he);
}
else {
rc = Curl_addrinfo4_callback(conn, (int)WSAGetLastError(), NULL);
}
TRACE(("Winsock-error %d, addr %s\n", conn->async.status,
he ? inet_ntoa(*(struct in_addr*)he->h_addr) : "unknown"));
}
/* clean up */
CloseHandle(mutex_waiting);
return (rc);
/* An implicit _endthreadex() here */
}
/*
* gethostbyname_thread() resolves a name, calls the Curl_addrinfo4_callback
* and then exits.
*
* For builds without ARES/ENABLE_IPV6, create a resolver thread and wait on
* it.
*/
static unsigned __stdcall gethostbyname_thread (void *arg)
{
struct connectdata *conn = (struct connectdata*) arg;
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
struct hostent *he;
int rc = 0;
/* Duplicate the passed mutex and event handles.
* This allows us to use it even after the container gets destroyed
* due to a resolver timeout.
*/
struct thread_sync_data tsd = { 0,0,0,NULL };
if (!init_thread_sync_data(td, conn->async.hostname, &tsd)) {
/* thread synchronization data initialization failed */
return -1;
}
/* Sharing the same _iob[] element with our parent thread should
* hopefully make printouts synchronised. I'm not sure it works
* with a static runtime lib (MSVC's libc.lib).
*/
#ifndef _WIN32_WCE
*stderr = *td->stderr_file;
#endif
WSASetLastError (conn->async.status = NO_DATA); /* pending status */
/* Signaling that we have initialized all copies of data and handles we
need */
SetEvent(td->event_thread_started);
he = gethostbyname (tsd.hostname);
/* is parent thread waiting for us and are we able to access conn members? */
if (acquire_thread_sync(&tsd)) {
/* Mark that we have obtained the information, and that we are calling
* back with it. */
SetEvent(td->event_resolved);
if (he) {
rc = Curl_addrinfo4_callback(conn, CURL_ASYNC_SUCCESS, he);
}
else {
rc = Curl_addrinfo4_callback(conn, (int)WSAGetLastError(), NULL);
}
TRACE(("Winsock-error %d, addr %s\n", conn->async.status,
he ? inet_ntoa(*(struct in_addr*)he->h_addr) : "unknown"));
release_thread_sync(&tsd);
}
/* clean up */
destroy_thread_sync_data(&tsd);
return (rc);
/* An implicit _endthreadex() here */
}
/*
* gethostbyname_thread() resolves a name, calls the Curl_addrinfo4_callback
* and then exits.
*
* For builds without ARES/ENABLE_IPV6, create a resolver thread and wait on
* it.
*/
static unsigned __stdcall gethostbyname_thread (void *arg)
{
struct connectdata *conn = (struct connectdata*) arg;
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
struct hostent *he;
int rc = 0;
/* Duplicate the passed mutex and event handles.
* This allows us to use it even after the container gets destroyed
* due to a resolver timeout.
*/
struct thread_sync_data tsd = { 0, 0, 0, NULL };
if (!init_thread_sync_data(td, conn->async.hostname, &tsd))
{
/* thread synchronization data initialization failed */
return (unsigned) - 1;
}
conn->async.status = NO_DATA; /* pending status */
SET_SOCKERRNO(conn->async.status);
/* Signaling that we have initialized all copies of data and handles we
need */
SetEvent(td->event_thread_started);
he = gethostbyname (tsd.hostname);
/* is parent thread waiting for us and are we able to access conn members? */
if (acquire_thread_sync(&tsd))
{
/* Mark that we have obtained the information, and that we are calling
* back with it. */
SetEvent(td->event_resolved);
if (he)
{
rc = Curl_addrinfo4_callback(conn, CURL_ASYNC_SUCCESS, he);
}
else
{
rc = Curl_addrinfo4_callback(conn, SOCKERRNO, NULL);
}
release_thread_sync(&tsd);
}
/* clean up */
destroy_thread_sync_data(&tsd);
return (rc);
/* An implicit _endthreadex() here */
}
