diff options
| author | David Kalnischkies <david@kalnischkies.de> | 2018-05-26 21:26:03 +0200 |
|---|---|---|
| committer | David Kalnischkies <david@kalnischkies.de> | 2018-05-29 13:04:59 +0200 |
| commit | f6655a1138a11e80884959014939a25f23a1e308 (patch) | |
| tree | 4169c00124a5e97d73ed7fd44483eb54ab9b1af7 /methods | |
| parent | 2fc09a90e7e62a4c3e4a67506bf90fcf4c6ccfaf (diff) | |
Use steady clock source for bandwidth limitation
Using the time of day for this is slightly wrong just like it is for
progress, just less visible.
Diffstat (limited to 'methods')
| -rw-r--r-- | methods/http.cc | 18 | ||||
| -rw-r--r-- | methods/http.h | 3 |
2 files changed, 11 insertions, 10 deletions
diff --git a/methods/http.cc b/methods/http.cc index 1933d9d00..2e7fca307 100644 --- a/methods/http.cc +++ b/methods/http.cc @@ -25,6 +25,7 @@ #include <apt-pkg/proxy.h> #include <apt-pkg/strutl.h> +#include <chrono> #include <cstring> #include <iostream> #include <sstream> @@ -49,7 +50,7 @@ using namespace std; unsigned long long CircleBuf::BwReadLimit=0; unsigned long long CircleBuf::BwTickReadData=0; -struct timeval CircleBuf::BwReadTick={0,0}; +std::chrono::steady_clock::duration CircleBuf::BwReadTick{0}; const unsigned int CircleBuf::BW_HZ=10; // CircleBuf::CircleBuf - Circular input buffer /*{{{*/ @@ -98,18 +99,17 @@ bool CircleBuf::Read(std::unique_ptr<MethodFd> const &Fd) unsigned long long const BwReadMax = CircleBuf::BwReadLimit/BW_HZ; if(CircleBuf::BwReadLimit) { - struct timeval now; - gettimeofday(&now,0); + auto const now = std::chrono::steady_clock::now().time_since_epoch(); + auto const d = now - CircleBuf::BwReadTick; - unsigned long long d = (now.tv_sec-CircleBuf::BwReadTick.tv_sec)*1000000 + - now.tv_usec-CircleBuf::BwReadTick.tv_usec; - if(d > 1000000/BW_HZ) { + auto const tickLen = std::chrono::microseconds(std::chrono::seconds(1)) / BW_HZ; + if(d > tickLen) { CircleBuf::BwReadTick = now; CircleBuf::BwTickReadData = 0; - } - + } + if(CircleBuf::BwTickReadData >= BwReadMax) { - usleep(1000000/BW_HZ); + usleep(tickLen.count()); return true; } } diff --git a/methods/http.h b/methods/http.h index ae6cedc13..5668f0b87 100644 --- a/methods/http.h +++ b/methods/http.h @@ -12,6 +12,7 @@ #include <apt-pkg/strutl.h> +#include <chrono> #include <iostream> #include <memory> #include <string> @@ -39,7 +40,7 @@ class CircleBuf static unsigned long long BwReadLimit; static unsigned long long BwTickReadData; - static struct timeval BwReadTick; + static std::chrono::steady_clock::duration BwReadTick; static const unsigned int BW_HZ; unsigned long long LeftRead() const |