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authorDaniel Stenberg <daniel@haxx.se>2017-06-08 08:34:32 +0200
committerDaniel Stenberg <daniel@haxx.se>2017-06-08 10:50:47 +0200
commit7fffe97b787b962fc0afcd5737cec411f2bc0023 (patch)
tree7d184eea0449a79a51bd2367c9b4da96228a98f4
parent165b7f50991277699fc7dc4758ec7f501372a75a (diff)
expire: remove Curl_expire_latest()
With the introduction of expire IDs and the fact that existing timers can be removed now and thus never expire, the concept with adding a "latest" timer is not working anymore as it risks to not expire at all. So, to be certain the timers actually are in line and will expire, the plain Curl_expire() needs to be used. The _latest() function was added as a sort of shortcut in the past that's quite simply not necessary anymore. Follow-up to 31b39c40cf90 Reported-by: Paul Harris Closes #1555
-rw-r--r--lib/connect.c2
-rw-r--r--lib/multi.c56
-rw-r--r--lib/multiif.h1
-rw-r--r--lib/speedcheck.c2
4 files changed, 8 insertions, 53 deletions
diff --git a/lib/connect.c b/lib/connect.c
index de84daa4f..d4fd52b99 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -1070,7 +1070,7 @@ static CURLcode singleipconnect(struct connectdata *conn,
conn->connecttime = Curl_tvnow();
if(conn->num_addr > 1)
- Curl_expire_latest(data, conn->timeoutms_per_addr, EXPIRE_DNS_PER_NAME);
+ Curl_expire(data, conn->timeoutms_per_addr, EXPIRE_DNS_PER_NAME);
/* Connect TCP sockets, bind UDP */
if(!isconnected && (conn->socktype == SOCK_STREAM)) {
diff --git a/lib/multi.c b/lib/multi.c
index 4b2872743..c3a0d122c 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -1840,9 +1840,9 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
if(send_timeout_ms <= 0 && recv_timeout_ms <= 0)
multistate(data, CURLM_STATE_PERFORM);
else if(send_timeout_ms >= recv_timeout_ms)
- Curl_expire_latest(data, send_timeout_ms, EXPIRE_TOOFAST);
+ Curl_expire(data, send_timeout_ms, EXPIRE_TOOFAST);
else
- Curl_expire_latest(data, recv_timeout_ms, EXPIRE_TOOFAST);
+ Curl_expire(data, recv_timeout_ms, EXPIRE_TOOFAST);
}
break;
@@ -1873,9 +1873,9 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
if(send_timeout_ms > 0 || recv_timeout_ms > 0) {
multistate(data, CURLM_STATE_TOOFAST);
if(send_timeout_ms >= recv_timeout_ms)
- Curl_expire_latest(data, send_timeout_ms, EXPIRE_TOOFAST);
+ Curl_expire(data, send_timeout_ms, EXPIRE_TOOFAST);
else
- Curl_expire_latest(data, recv_timeout_ms, EXPIRE_TOOFAST);
+ Curl_expire(data, recv_timeout_ms, EXPIRE_TOOFAST);
break;
}
@@ -1936,8 +1936,7 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
/* expire the new receiving pipeline head */
if(data->easy_conn->recv_pipe.head)
- Curl_expire_latest(data->easy_conn->recv_pipe.head->ptr, 0,
- EXPIRE_RUN_NOW);
+ Curl_expire(data->easy_conn->recv_pipe.head->ptr, 0, EXPIRE_RUN_NOW);
/* Check if we can move pending requests to send pipe */
Curl_multi_process_pending_handles(multi);
@@ -2977,49 +2976,6 @@ void Curl_expire(struct Curl_easy *data, time_t milli, expire_id id)
}
/*
- * Curl_expire_latest()
- *
- * This is like Curl_expire() but will only add a timeout node to the list of
- * timers if there is no timeout that will expire before the given time.
- *
- * Use this function if the code logic risks calling this function many times
- * or if there's no particular conditional wait in the code for this specific
- * time-out period to expire.
- *
- */
-void Curl_expire_latest(struct Curl_easy *data, time_t milli, expire_id id)
-{
- struct timeval *expire = &data->state.expiretime;
-
- struct timeval set;
-
- set = Curl_tvnow();
- set.tv_sec += (long)(milli / 1000);
- set.tv_usec += (long)(milli % 1000) * 1000;
-
- if(set.tv_usec >= 1000000) {
- set.tv_sec++;
- set.tv_usec -= 1000000;
- }
-
- if(expire->tv_sec || expire->tv_usec) {
- /* This means that the struct is added as a node in the splay tree.
- Compare if the new time is earlier, and only remove-old/add-new if it
- is. */
- time_t diff = curlx_tvdiff(set, *expire);
- if((diff > 0) && (diff < milli)) {
- /* if the new expire time is later than the top time, skip it, but not
- if the diff is larger than the new offset since then the previous
- time is already expired! */
- return;
- }
- }
-
- /* Just add the timeout like normal */
- Curl_expire(data, milli, id);
-}
-
-/*
* Curl_expire_done()
*
* Removes the expire timer. Marks it as done.
@@ -3134,7 +3090,7 @@ void Curl_multi_process_pending_handles(struct Curl_multi *multi)
Curl_llist_remove(&multi->pending, e, NULL);
/* Make sure that the handle will be processed soonish. */
- Curl_expire_latest(data, 0, EXPIRE_RUN_NOW);
+ Curl_expire(data, 0, EXPIRE_RUN_NOW);
}
e = next; /* operate on next handle */
diff --git a/lib/multiif.h b/lib/multiif.h
index a833e23e0..a877571a0 100644
--- a/lib/multiif.h
+++ b/lib/multiif.h
@@ -28,7 +28,6 @@
void Curl_expire(struct Curl_easy *data, time_t milli, expire_id);
void Curl_expire_clear(struct Curl_easy *data);
-void Curl_expire_latest(struct Curl_easy *data, time_t milli, expire_id);
void Curl_expire_done(struct Curl_easy *data, expire_id id);
bool Curl_pipeline_wanted(const struct Curl_multi* multi, int bits);
void Curl_multi_handlePipeBreak(struct Curl_easy *data);
diff --git a/lib/speedcheck.c b/lib/speedcheck.c
index 694d7f695..8addedde5 100644
--- a/lib/speedcheck.c
+++ b/lib/speedcheck.c
@@ -67,7 +67,7 @@ CURLcode Curl_speedcheck(struct Curl_easy *data,
if(data->set.low_speed_limit)
/* if low speed limit is enabled, set the expire timer to make this
connection's speed get checked again in a second */
- Curl_expire_latest(data, 1000, EXPIRE_SPEEDCHECK);
+ Curl_expire(data, 1000, EXPIRE_SPEEDCHECK);
return CURLE_OK;
}