diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/http.c | 2 | ||||
| -rw-r--r-- | lib/multi.c | 63 | ||||
| -rw-r--r-- | lib/pipeline.c | 91 | ||||
| -rw-r--r-- | lib/pipeline.h | 12 | ||||
| -rw-r--r-- | lib/url.c | 9 |
5 files changed, 118 insertions, 59 deletions
diff --git a/lib/http.c b/lib/http.c index 5469cc067..e4ff4010a 100644 --- a/lib/http.c +++ b/lib/http.c @@ -1211,7 +1211,7 @@ CURLcode Curl_add_buffer_send(Curl_send_buffer *in, */ return CURLE_SEND_ERROR; else - conn->writechannel_inuse = FALSE; + Curl_pipeline_leave_write(conn); } } Curl_add_buffer_free(in); diff --git a/lib/multi.c b/lib/multi.c index cff3b8d55..718f65816 100644 --- a/lib/multi.c +++ b/lib/multi.c @@ -69,8 +69,6 @@ static void singlesocket(struct Curl_multi *multi, struct SessionHandle *data); static int update_timer(struct Curl_multi *multi); -static bool isHandleAtHead(struct SessionHandle *handle, - struct curl_llist *pipeline); static CURLMcode add_next_timeout(struct timeval now, struct Curl_multi *multi, struct SessionHandle *d); @@ -1269,19 +1267,8 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi, case CURLM_STATE_WAITDO: /* Wait for our turn to DO when we're pipelining requests */ -#ifdef DEBUGBUILD - infof(data, "WAITDO: Conn %ld send pipe %zu inuse %s athead %s\n", - data->easy_conn->connection_id, - data->easy_conn->send_pipe->size, - data->easy_conn->writechannel_inuse?"TRUE":"FALSE", - isHandleAtHead(data, - data->easy_conn->send_pipe)?"TRUE":"FALSE"); -#endif - if(!data->easy_conn->writechannel_inuse && - isHandleAtHead(data, - data->easy_conn->send_pipe)) { - /* Grab the channel */ - data->easy_conn->writechannel_inuse = TRUE; + if(Curl_pipeline_checkget_write(data, data->easy_conn)) { + /* Grabbed the channel */ multistate(data, CURLM_STATE_DO); rc = CURLM_CALL_MULTI_PERFORM; } @@ -1464,25 +1451,11 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi, case CURLM_STATE_WAITPERFORM: /* Wait for our turn to PERFORM */ - if((!data->easy_conn->readchannel_inuse && - isHandleAtHead(data, - data->easy_conn->recv_pipe)) || - data->easy_conn->bits.multiplex) { - /* Grab the channel */ - data->easy_conn->readchannel_inuse = TRUE; + if(Curl_pipeline_checkget_read(data, data->easy_conn)) { + /* Grabbed the channel */ multistate(data, CURLM_STATE_PERFORM); rc = CURLM_CALL_MULTI_PERFORM; } -#ifdef DEBUGBUILD - else { - infof(data, "WAITPERFORM: Conn %ld recv pipe %zu inuse %s athead %s\n", - data->easy_conn->connection_id, - data->easy_conn->recv_pipe->size, - data->easy_conn->readchannel_inuse?"TRUE":"FALSE", - isHandleAtHead(data, - data->easy_conn->recv_pipe)?"TRUE":"FALSE"); - } -#endif break; case CURLM_STATE_TOOFAST: /* limit-rate exceeded in either direction */ @@ -1543,15 +1516,13 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi, k = &data->req; - if(!(k->keepon & KEEP_RECV)) { + if(!(k->keepon & KEEP_RECV)) /* We're done receiving */ - data->easy_conn->readchannel_inuse = FALSE; - } + Curl_pipeline_leave_read(data->easy_conn); - if(!(k->keepon & KEEP_SEND)) { + if(!(k->keepon & KEEP_SEND)) /* We're done sending */ - data->easy_conn->writechannel_inuse = FALSE; - } + Curl_pipeline_leave_write(data->easy_conn); if(done || (result == CURLE_RECV_ERROR)) { /* If CURLE_RECV_ERROR happens early enough, we assume it was a race @@ -1733,8 +1704,8 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi, if(data->easy_conn) { /* if this has a connection, unsubscribe from the pipelines */ - data->easy_conn->writechannel_inuse = FALSE; - data->easy_conn->readchannel_inuse = FALSE; + Curl_pipeline_leave_write(data->easy_conn); + Curl_pipeline_leave_read(data->easy_conn); Curl_removeHandleFromPipeline(data, data->easy_conn->send_pipe); Curl_removeHandleFromPipeline(data, data->easy_conn->recv_pipe); @@ -2081,7 +2052,7 @@ static void singlesocket(struct Curl_multi *multi, for the recv_pipe, or the first (in case this particular easy isn't already) */ if(entry->easy == data) { - if(isHandleAtHead(data, easy_conn->recv_pipe)) + if(Curl_recvpipe_head(data, easy_conn)) entry->easy = easy_conn->recv_pipe->head->next->ptr; else entry->easy = easy_conn->recv_pipe->head->ptr; @@ -2095,7 +2066,7 @@ static void singlesocket(struct Curl_multi *multi, for the send_pipe, or the first (in case this particular easy isn't already) */ if(entry->easy == data) { - if(isHandleAtHead(data, easy_conn->send_pipe)) + if(Curl_sendpipe_head(data, easy_conn)) entry->easy = easy_conn->send_pipe->head->next->ptr; else entry->easy = easy_conn->send_pipe->head->ptr; @@ -2533,16 +2504,6 @@ static int update_timer(struct Curl_multi *multi) return multi->timer_cb((CURLM*)multi, timeout_ms, multi->timer_userp); } -static bool isHandleAtHead(struct SessionHandle *handle, - struct curl_llist *pipeline) -{ - struct curl_llist_element *curr = pipeline->head; - if(curr) - return (curr->ptr == handle) ? TRUE : FALSE; - - return FALSE; -} - /* * multi_freetimeout() * diff --git a/lib/pipeline.c b/lib/pipeline.c index 744151d0b..1b38836cb 100644 --- a/lib/pipeline.c +++ b/lib/pipeline.c @@ -113,7 +113,7 @@ CURLcode Curl_add_handle_to_pipeline(struct SessionHandle *handle, if(pipeline == conn->send_pipe && sendhead != conn->send_pipe->head) { /* this is a new one as head, expire it */ - conn->writechannel_inuse = FALSE; /* not in use yet */ + Curl_pipeline_leave_write(conn); /* not in use yet */ Curl_expire(conn->send_pipe->head->ptr, 1); } @@ -144,7 +144,7 @@ void Curl_move_handle_from_send_to_recv_pipe(struct SessionHandle *handle, if(conn->send_pipe->head) { /* Since there's a new easy handle at the start of the send pipeline, set its timeout value to 1ms to make it trigger instantly */ - conn->writechannel_inuse = FALSE; /* not used now */ + Curl_pipeline_leave_write(conn); /* not used now */ #ifdef DEBUGBUILD infof(conn->data, "%p is at send pipe head B!\n", (void *)conn->send_pipe->head->ptr); @@ -320,6 +320,93 @@ CURLMcode Curl_pipeline_set_server_blacklist(char **servers, return CURLM_OK; } +static bool pipe_head(struct SessionHandle *data, + struct curl_llist *pipeline) +{ + struct curl_llist_element *curr = pipeline->head; + if(curr) + return (curr->ptr == data) ? TRUE : FALSE; + + return FALSE; +} + +/* returns TRUE if the given handle is head of the recv pipe */ +bool Curl_recvpipe_head(struct SessionHandle *data, + struct connectdata *conn) +{ + return pipe_head(data, conn->recv_pipe); +} + +/* returns TRUE if the given handle is head of the send pipe */ +bool Curl_sendpipe_head(struct SessionHandle *data, + struct connectdata *conn) +{ + return pipe_head(data, conn->send_pipe); +} + + +/* + * Check if the write channel is available and this handle as at the head, + * then grab the channel and return TRUE. + * + * If not available, return FALSE. + */ + +bool Curl_pipeline_checkget_write(struct SessionHandle *data, + struct connectdata *conn) +{ + if(conn->bits.multiplex) + /* when multiplexing, we can use it at once */ + return TRUE; + + if(!conn->writechannel_inuse && Curl_sendpipe_head(data, conn)) { + /* Grab the channel */ + conn->writechannel_inuse = TRUE; + return TRUE; + } + return FALSE; +} + + +/* + * Check if the read channel is available and this handle as at the head, then + * grab the channel and return TRUE. + * + * If not available, return FALSE. + */ + +bool Curl_pipeline_checkget_read(struct SessionHandle *data, + struct connectdata *conn) +{ + if(conn->bits.multiplex) + /* when multiplexing, we can use it at once */ + return TRUE; + + if(!conn->readchannel_inuse && Curl_recvpipe_head(data, conn)) { + /* Grab the channel */ + conn->readchannel_inuse = TRUE; + return TRUE; + } + return FALSE; +} + +/* + * The current user of the pipeline write channel gives it up. + */ +void Curl_pipeline_leave_write(struct connectdata *conn) +{ + conn->writechannel_inuse = FALSE; +} + +/* + * The current user of the pipeline read channel gives it up. + */ +void Curl_pipeline_leave_read(struct connectdata *conn) +{ + conn->readchannel_inuse = FALSE; +} + + #if 0 void print_pipeline(struct connectdata *conn) { diff --git a/lib/pipeline.h b/lib/pipeline.h index 96c4c33ec..bf229f199 100644 --- a/lib/pipeline.h +++ b/lib/pipeline.h @@ -7,6 +7,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * + * Copyright (C) 2015, Daniel Stenberg, <daniel@haxx.se>, et al. * Copyright (C) 2013 - 2014, Linus Nielsen Feltzing, <linus@haxx.se> * * This software is licensed as described in the file COPYING, which @@ -41,4 +42,15 @@ bool Curl_pipeline_server_blacklisted(struct SessionHandle *handle, CURLMcode Curl_pipeline_set_server_blacklist(char **servers, struct curl_llist **list_ptr); +bool Curl_pipeline_checkget_write(struct SessionHandle *data, + struct connectdata *conn); +bool Curl_pipeline_checkget_read(struct SessionHandle *data, + struct connectdata *conn); +void Curl_pipeline_leave_write(struct connectdata *conn); +void Curl_pipeline_leave_read(struct connectdata *conn); +bool Curl_recvpipe_head(struct SessionHandle *data, + struct connectdata *conn); +bool Curl_sendpipe_head(struct SessionHandle *data, + struct connectdata *conn); + #endif /* HEADER_CURL_PIPELINE_H */ @@ -2885,15 +2885,14 @@ void Curl_getoff_all_pipelines(struct SessionHandle *data, struct connectdata *conn) { bool recv_head = (conn->readchannel_inuse && - (gethandleathead(conn->recv_pipe) == data)) ? TRUE : FALSE; - + Curl_recvpipe_head(data, conn)); bool send_head = (conn->writechannel_inuse && - (gethandleathead(conn->send_pipe) == data)) ? TRUE : FALSE; + Curl_sendpipe_head(data, conn)); if(Curl_removeHandleFromPipeline(data, conn->recv_pipe) && recv_head) - conn->readchannel_inuse = FALSE; + Curl_pipeline_leave_read(conn); if(Curl_removeHandleFromPipeline(data, conn->send_pipe) && send_head) - conn->writechannel_inuse = FALSE; + Curl_pipeline_leave_write(conn); } static void signalPipeClose(struct curl_llist *pipeline, bool pipe_broke) |