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Implement bandwidth limitation

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This commit is contained in:
Olivier Goffart 2013-07-24 15:07:38 +02:00 committed by Daniel Molkentin
parent 09e30509d1
commit 6109b22aa6
2 changed files with 41 additions and 0 deletions
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34
modules/csync_owncloud.c
View file

@ -93,6 +93,11 @@ static void clean_caches() {
char _buffer[PUT_BUFFER_SIZE];
/* Differance in usec between two time */
static int64_t _timediff(struct timeval x , struct timeval y)
{
return (y.tv_sec - x.tv_sec)*1000000 + (y.tv_usec - x.tv_usec);
}
/*
* helper method to build up a user text for SSL problems, called from the
@ -396,6 +401,7 @@ static void ne_notify_status_cb (void *userdata, ne_session_status status,
const ne_session_status_info *info)
{
struct transfer_context *tc = (struct transfer_context*) userdata;
struct timeval now;
if (_file_progress_cb && (status == ne_status_sending || status == ne_status_recving)) {
if (info->sr.total > 0)
@ -407,6 +413,23 @@ static void ne_notify_status_cb (void *userdata, ne_session_status status,
if (chunked_total_size && info->sr.total == info->sr.progress)
chunked_done += info->sr.total;
}
/* throttle connection */
int bandwidth_limit = 0;
if (status == ne_status_sending) bandwidth_limit = dav_session.bandwidth_limit_upload;
if (status == ne_status_recving) bandwidth_limit = dav_session.bandwidth_limit_download;
if (bandwidth_limit > 0 && gettimeofday(&now, NULL) == 0) {
int64_t diff = _timediff(tc->last_time, now);
int64_t len = info->sr.progress - tc->last_progress;
if (len > 0 && diff > 0 && (1000000 * len / diff) > (int64_t)bandwidth_limit) {
int64_t wait = (1000000 * len / bandwidth_limit) - diff;
if (wait > 0) {
usleep(wait);
}
}
tc->last_progress = info->sr.progress;
gettimeofday(&tc->last_time, NULL);
}
}
// as per http://sourceforge.net/p/predef/wiki/OperatingSystems/
@ -962,6 +985,8 @@ static void install_content_reader( ne_request *req, void *userdata, const ne_st
_id_cache.uri = c_strdup(writeCtx->url);
_id_cache.id = c_strdup(enc);
}
gettimeofday(&writeCtx->last_time, NULL);
}
static char*_lastDir = NULL;
@ -1764,6 +1789,15 @@ static int owncloud_set_property(const char *key, void *data) {
dav_session.hbf_threshold = *(off_t*)(data);
return 0;
}
if( c_streq(key, "bandwidth_limit_upload")) {
dav_session.bandwidth_limit_upload = *(int*)(data);
return 0;
}
if( c_streq(key, "bandwidth_limit_download")) {
dav_session.bandwidth_limit_download = *(int*)(data);
return 0;
}
return -1;
}

7
modules/csync_owncloud.h
View file

@ -126,6 +126,10 @@ struct transfer_context {
const char *method; /* the HTTP method, either PUT or GET */
ne_decompress *decompress; /* the decompress context */
char *url;
/* Used for limiting the bandwidth */
struct timeval last_time;
ne_off_t last_progress;
};
/* Struct with the WebDAV session */
@ -153,6 +157,9 @@ struct dav_session_s {
bool no_recursive_propfind;
off_t hbf_block_size;
off_t hbf_threshold;
int bandwidth_limit_upload; //in B/s
int bandwidth_limit_download; //in B/s
};
extern struct dav_session_s dav_session;