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authorMichael Vogt <michael.vogt@ubuntu.com>2005-11-22 22:11:06 +0000
committerMichael Vogt <michael.vogt@ubuntu.com>2005-11-22 22:11:06 +0000
commit7c6e2dc761f736bf203f7770f7a1c4a63f7063d4 (patch)
tree9dc397a4779e2eae6b99e409961973878c870b4a /methods/http.cc
parent46e00f9d71300f3a80a4a311e369e64a48ce396f (diff)
* merged http download limit for apt (#146877)
Diffstat (limited to 'methods/http.cc')
-rw-r--r--methods/http.cc41
1 files changed, 39 insertions, 2 deletions
diff --git a/methods/http.cc b/methods/http.cc
index ba86aa6b6..a5c9601e7 100644
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -58,6 +58,12 @@ unsigned long PipelineDepth = 10;
unsigned long TimeOut = 120;
bool Debug = false;
+
+unsigned long CircleBuf::BwReadLimit=0;
+unsigned long CircleBuf::BwTickReadData=0;
+struct timeval CircleBuf::BwReadTick={0,0};
+const unsigned int CircleBuf::BW_HZ=10;
+
// CircleBuf::CircleBuf - Circular input buffer /*{{{*/
// ---------------------------------------------------------------------
/* */
@@ -65,6 +71,8 @@ CircleBuf::CircleBuf(unsigned long Size) : Size(Size), Hash(0)
{
Buf = new unsigned char[Size];
Reset();
+
+ CircleBuf::BwReadLimit = _config->FindI("Acquire::http::Dl-Limit",0)*1024;
}
/*}}}*/
// CircleBuf::Reset - Reset to the default state /*{{{*/
@@ -90,16 +98,45 @@ void CircleBuf::Reset()
is non-blocking.. */
bool CircleBuf::Read(int Fd)
{
+ unsigned long BwReadMax;
+
while (1)
{
// Woops, buffer is full
if (InP - OutP == Size)
return true;
-
+
+ // what's left to read in this tick
+ BwReadMax = CircleBuf::BwReadLimit/BW_HZ;
+
+ if(CircleBuf::BwReadLimit) {
+ struct timeval now;
+ gettimeofday(&now,0);
+
+ unsigned long d = (now.tv_sec-CircleBuf::BwReadTick.tv_sec)*1000000 +
+ now.tv_usec-CircleBuf::BwReadTick.tv_usec;
+ if(d > 1000000/BW_HZ) {
+ CircleBuf::BwReadTick = now;
+ CircleBuf::BwTickReadData = 0;
+ }
+
+ if(CircleBuf::BwTickReadData >= BwReadMax) {
+ usleep(1000000/BW_HZ);
+ return true;
+ }
+ }
+
// Write the buffer segment
int Res;
- Res = read(Fd,Buf + (InP%Size),LeftRead());
+ if(CircleBuf::BwReadLimit) {
+ Res = read(Fd,Buf + (InP%Size),
+ BwReadMax > LeftRead() ? LeftRead() : BwReadMax);
+ } else
+ Res = read(Fd,Buf + (InP%Size),LeftRead());
+ if(Res > 0 && BwReadLimit > 0)
+ CircleBuf::BwTickReadData += Res;
+
if (Res == 0)
return false;
if (Res < 0)