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env_win32.c
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env_win32.c
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/* env_win32.c */
/* Copyright 2009-2012 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
/* Networking and other niceties for WIN32. */
#include "env.h"
#include "mongo.h"
#include <string.h>
#ifdef _MSC_VER
#include <ws2tcpip.h> // send,recv,socklen_t etc
#include <wspiapi.h> // addrinfo
#else
#include <ws2tcpip.h> // send,recv,socklen_t etc
#include <winsock2.h>
typedef int socklen_t;
#endif
#ifndef NI_MAXSERV
# define NI_MAXSERV 32
#endif
int mongo_env_close_socket( int socket ) {
return closesocket( socket );
}
int mongo_env_write_socket( mongo *conn, const void *buf, int len ) {
const char *cbuf = buf;
int flags = 0;
while ( len ) {
int sent = send( conn->sock, cbuf, len, flags );
if ( sent == -1 ) {
__mongo_set_error( conn, MONGO_IO_ERROR, NULL, WSAGetLastError() );
conn->connected = 0;
return MONGO_ERROR;
}
cbuf += sent;
len -= sent;
}
return MONGO_OK;
}
int mongo_env_read_socket( mongo *conn, void *buf, int len ) {
char *cbuf = buf;
while ( len ) {
int sent = recv( conn->sock, cbuf, len, 0 );
if ( sent == 0 || sent == -1 ) {
__mongo_set_error( conn, MONGO_IO_ERROR, NULL, WSAGetLastError() );
return MONGO_ERROR;
}
cbuf += sent;
len -= sent;
}
return MONGO_OK;
}
int mongo_env_set_socket_op_timeout( mongo *conn, int millis ) {
if ( setsockopt( conn->sock, SOL_SOCKET, SO_RCVTIMEO, (const char *)&millis,
sizeof( millis ) ) == -1 ) {
__mongo_set_error( conn, MONGO_IO_ERROR, "setsockopt SO_RCVTIMEO failed.",
WSAGetLastError() );
return MONGO_ERROR;
}
if ( setsockopt( conn->sock, SOL_SOCKET, SO_SNDTIMEO, (const char *)&millis,
sizeof( millis ) ) == -1 ) {
__mongo_set_error( conn, MONGO_IO_ERROR, "setsockopt SO_SNDTIMEO failed.",
WSAGetLastError() );
return MONGO_ERROR;
}
return MONGO_OK;
}
int mongo_env_socket_connect( mongo *conn, const char *host, int port ) {
char port_str[NI_MAXSERV];
char errstr[MONGO_ERR_LEN];
int status;
struct addrinfo ai_hints;
struct addrinfo *ai_list = NULL;
struct addrinfo *ai_ptr = NULL;
conn->sock = 0;
conn->connected = 0;
bson_sprintf( port_str, "%d", port );
memset( &ai_hints, 0, sizeof( ai_hints ) );
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_STREAM;
ai_hints.ai_protocol = IPPROTO_TCP;
status = getaddrinfo( host, port_str, &ai_hints, &ai_list );
if ( status != 0 ) {
bson_sprintf( errstr, "getaddrinfo failed with error %d", status );
__mongo_set_error( conn, MONGO_CONN_ADDR_FAIL, errstr, WSAGetLastError() );
return MONGO_ERROR;
}
for ( ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next ) {
conn->sock = socket( ai_ptr->ai_family, ai_ptr->ai_socktype,
ai_ptr->ai_protocol );
if ( conn->sock < 0 ) {
__mongo_set_error( conn, MONGO_SOCKET_ERROR, "socket() failed",
WSAGetLastError() );
conn->sock = 0;
continue;
}
status = connect( conn->sock, ai_ptr->ai_addr, ai_ptr->ai_addrlen );
if ( status != 0 ) {
__mongo_set_error( conn, MONGO_SOCKET_ERROR, "connect() failed",
WSAGetLastError() );
mongo_env_close_socket( conn->sock );
conn->sock = 0;
continue;
}
if ( ai_ptr->ai_protocol == IPPROTO_TCP ) {
int flag = 1;
setsockopt( conn->sock, IPPROTO_TCP, TCP_NODELAY,
( void * ) &flag, sizeof( flag ) );
if ( conn->op_timeout_ms > 0 )
mongo_env_set_socket_op_timeout( conn, conn->op_timeout_ms );
}
conn->connected = 1;
break;
}
freeaddrinfo( ai_list );
if ( ! conn->connected ) {
conn->err = MONGO_CONN_FAIL;
return MONGO_ERROR;
}
else {
mongo_clear_errors( conn );
return MONGO_OK;
}
}
MONGO_EXPORT int mongo_env_sock_init( void ) {
WSADATA wsaData;
WORD wVers;
static int called_once;
static int retval;
if (called_once) return retval;
called_once = 1;
wVers = MAKEWORD(1, 1);
retval = (WSAStartup(wVers, &wsaData) == 0);
return retval;
}