mirror of
https://github.com/moparisthebest/curl
synced 2024-11-16 06:25:03 -05:00
d00f2a8f2e
- Check for pending data before waiting on the socket. Bug: https://github.com/curl/curl/issues/1156 Reported-by: Adam Langley
148 lines
5.0 KiB
C
148 lines
5.0 KiB
C
#ifndef HEADER_CURL_CONNECT_H
|
|
#define HEADER_CURL_CONNECT_H
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
#include "curl_setup.h"
|
|
|
|
#include "nonblock.h" /* for curlx_nonblock(), formerly Curl_nonblock() */
|
|
#include "sockaddr.h"
|
|
|
|
CURLcode Curl_is_connected(struct connectdata *conn,
|
|
int sockindex,
|
|
bool *connected);
|
|
|
|
CURLcode Curl_connecthost(struct connectdata *conn,
|
|
const struct Curl_dns_entry *host);
|
|
|
|
/* generic function that returns how much time there's left to run, according
|
|
to the timeouts set */
|
|
time_t Curl_timeleft(struct Curl_easy *data,
|
|
struct timeval *nowp,
|
|
bool duringconnect);
|
|
|
|
#define DEFAULT_CONNECT_TIMEOUT 300000 /* milliseconds == five minutes */
|
|
#define HAPPY_EYEBALLS_TIMEOUT 200 /* milliseconds to wait between
|
|
IPv4/IPv6 connection attempts */
|
|
|
|
/*
|
|
* Used to extract socket and connectdata struct for the most recent
|
|
* transfer on the given Curl_easy.
|
|
*
|
|
* The returned socket will be CURL_SOCKET_BAD in case of failure!
|
|
*/
|
|
curl_socket_t Curl_getconnectinfo(struct Curl_easy *data,
|
|
struct connectdata **connp);
|
|
|
|
/*
|
|
* Check if a connection seems to be alive.
|
|
*/
|
|
bool Curl_connalive(struct connectdata *conn);
|
|
|
|
#ifdef USE_WINSOCK
|
|
/* When you run a program that uses the Windows Sockets API, you may
|
|
experience slow performance when you copy data to a TCP server.
|
|
|
|
https://support.microsoft.com/kb/823764
|
|
|
|
Work-around: Make the Socket Send Buffer Size Larger Than the Program Send
|
|
Buffer Size
|
|
|
|
*/
|
|
void Curl_sndbufset(curl_socket_t sockfd);
|
|
#else
|
|
#define Curl_sndbufset(y) Curl_nop_stmt
|
|
#endif
|
|
|
|
void Curl_updateconninfo(struct connectdata *conn, curl_socket_t sockfd);
|
|
void Curl_persistconninfo(struct connectdata *conn);
|
|
int Curl_closesocket(struct connectdata *conn, curl_socket_t sock);
|
|
|
|
/*
|
|
* The Curl_sockaddr_ex structure is basically libcurl's external API
|
|
* curl_sockaddr structure with enough space available to directly hold any
|
|
* protocol-specific address structures. The variable declared here will be
|
|
* used to pass / receive data to/from the fopensocket callback if this has
|
|
* been set, before that, it is initialized from parameters.
|
|
*/
|
|
struct Curl_sockaddr_ex {
|
|
int family;
|
|
int socktype;
|
|
int protocol;
|
|
unsigned int addrlen;
|
|
union {
|
|
struct sockaddr addr;
|
|
struct Curl_sockaddr_storage buff;
|
|
} _sa_ex_u;
|
|
};
|
|
#define sa_addr _sa_ex_u.addr
|
|
|
|
/*
|
|
* Create a socket based on info from 'conn' and 'ai'.
|
|
*
|
|
* Fill in 'addr' and 'sockfd' accordingly if OK is returned. If the open
|
|
* socket callback is set, used that!
|
|
*
|
|
*/
|
|
CURLcode Curl_socket(struct connectdata *conn,
|
|
const Curl_addrinfo *ai,
|
|
struct Curl_sockaddr_ex *addr,
|
|
curl_socket_t *sockfd);
|
|
|
|
void Curl_tcpnodelay(struct connectdata *conn, curl_socket_t sockfd);
|
|
|
|
/*
|
|
* Curl_conncontrol() marks the end of a connection/stream. The 'closeit'
|
|
* argument specifies if it is the end of a connection or a stream.
|
|
*
|
|
* For stream-based protocols (such as HTTP/2), a stream close will not cause
|
|
* a connection close. Other protocols will close the connection for both
|
|
* cases.
|
|
*
|
|
* It sets the bit.close bit to TRUE (with an explanation for debug builds),
|
|
* when the connection will close.
|
|
*/
|
|
|
|
#define CONNCTRL_KEEP 0 /* undo a marked closure */
|
|
#define CONNCTRL_CONNECTION 1
|
|
#define CONNCTRL_STREAM 2
|
|
|
|
void Curl_conncontrol(struct connectdata *conn,
|
|
int closeit
|
|
#ifdef DEBUGBUILD
|
|
, const char *reason
|
|
#endif
|
|
);
|
|
|
|
#ifdef DEBUGBUILD
|
|
#define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM, y)
|
|
#define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION, y)
|
|
#define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP, y)
|
|
#else /* if !CURLDEBUG */
|
|
#define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM)
|
|
#define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION)
|
|
#define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP)
|
|
#endif
|
|
|
|
bool Curl_conn_data_pending(struct connectdata *conn, int sockindex);
|
|
|
|
#endif /* HEADER_CURL_CONNECT_H */
|