diff options
author | Daniel Stenberg <daniel@haxx.se> | 2021-01-08 17:58:15 +0100 |
---|---|---|
committer | Daniel Stenberg <daniel@haxx.se> | 2021-01-17 23:56:09 +0100 |
commit | 215db086e09665ee7af9b646ad6c4d6e281001ac (patch) | |
tree | 50c74f8456df87e86de6d72e90190a3563083a1a /lib/pingpong.h | |
parent | 0d26ab9ed3ac29da2a383d313e93df3e9f5295a2 (diff) | |
download | curl-215db086e09665ee7af9b646ad6c4d6e281001ac.tar.gz |
lib: pass in 'struct Curl_easy *' to most functions
... in most cases instead of 'struct connectdata *' but in some cases in
addition to.
- We mostly operate on transfers and not connections.
- We need the transfer handle to log, store data and more. Everything in
libcurl is driven by a transfer (the CURL * in the public API).
- This work clarifies and separates the transfers from the connections
better.
- We should avoid "conn->data". Since individual connections can be used
by many transfers when multiplexing, making sure that conn->data
points to the current and correct transfer at all times is difficult
and has been notoriously error-prone over the years. The goal is to
ultimately remove the conn->data pointer for this reason.
Closes #6425
Diffstat (limited to 'lib/pingpong.h')
-rw-r--r-- | lib/pingpong.h | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/lib/pingpong.h b/lib/pingpong.h index 0d0c74afa..3685a99a7 100644 --- a/lib/pingpong.h +++ b/lib/pingpong.h @@ -7,7 +7,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2021, 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 @@ -62,37 +62,44 @@ struct pingpong { off, used to time-out response reading */ timediff_t response_time; /* When no timeout is given, this is the amount of milliseconds we await for a server response. */ - struct connectdata *conn; /* points to the connectdata struct that this - belongs to */ + struct connectdata *conn; /* the connection */ struct dynbuf sendbuf; /* Function pointers the protocols MUST implement and provide for the pingpong layer to function */ - CURLcode (*statemach_act)(struct connectdata *conn); - - bool (*endofresp)(struct connectdata *conn, char *ptr, size_t len, - int *code); + CURLcode (*statemachine)(struct Curl_easy *data, struct connectdata *conn); + bool (*endofresp)(struct Curl_easy *data, struct connectdata *conn, + char *ptr, size_t len, int *code); }; +#define PINGPONG_SETUP(pp,s,e) \ + do { \ + pp->response_time = RESP_TIMEOUT; \ + pp->statemachine = s; \ + pp->endofresp = e; \ + pp->conn = conn; \ + } while(0) + /* * Curl_pp_statemach() * * called repeatedly until done. Set 'wait' to make it wait a while on the * socket if there's no traffic. */ -CURLcode Curl_pp_statemach(struct pingpong *pp, bool block, - bool disconnecting); +CURLcode Curl_pp_statemach(struct Curl_easy *data, struct pingpong *pp, + bool block, bool disconnecting); /* initialize stuff to prepare for reading a fresh new response */ -void Curl_pp_init(struct pingpong *pp); +void Curl_pp_init(struct Curl_easy *data, struct pingpong *pp); /* setup for the transfer */ void Curl_pp_setup(struct pingpong *pp); /* Returns timeout in ms. 0 or negative number means the timeout has already triggered */ -timediff_t Curl_pp_state_timeout(struct pingpong *pp, bool disconnecting); +timediff_t Curl_pp_state_timeout(struct Curl_easy *data, + struct pingpong *pp, bool disconnecting); /*********************************************************************** @@ -105,7 +112,8 @@ timediff_t Curl_pp_state_timeout(struct pingpong *pp, bool disconnecting); * * made to never block */ -CURLcode Curl_pp_sendf(struct pingpong *pp, +CURLcode Curl_pp_sendf(struct Curl_easy *data, + struct pingpong *pp, const char *fmt, ...); /*********************************************************************** @@ -118,7 +126,8 @@ CURLcode Curl_pp_sendf(struct pingpong *pp, * * made to never block */ -CURLcode Curl_pp_vsendf(struct pingpong *pp, +CURLcode Curl_pp_vsendf(struct Curl_easy *data, + struct pingpong *pp, const char *fmt, va_list args); @@ -127,7 +136,8 @@ CURLcode Curl_pp_vsendf(struct pingpong *pp, * * Reads a piece of a server response. */ -CURLcode Curl_pp_readresp(curl_socket_t sockfd, +CURLcode Curl_pp_readresp(struct Curl_easy *data, + curl_socket_t sockfd, struct pingpong *pp, int *code, /* return the server code if done */ size_t *size); /* size of the response */ |