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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
parent46e00f9d71300f3a80a4a311e369e64a48ce396f (diff)
* merged http download limit for apt (#146877)
-rw-r--r--apt-pkg/acquire.cc6
-rw-r--r--debian/changelog5
-rw-r--r--doc/examples/configure-index1
-rw-r--r--methods/http.cc41
-rw-r--r--methods/http.h5
5 files changed, 53 insertions, 5 deletions
diff --git a/apt-pkg/acquire.cc b/apt-pkg/acquire.cc
index 62209e65b..57cf60bfe 100644
--- a/apt-pkg/acquire.cc
+++ b/apt-pkg/acquire.cc
@@ -266,7 +266,11 @@ pkgAcquire::MethodConfig *pkgAcquire::GetConfig(string Access)
Worker Work(Conf);
if (Work.Start() == false)
return 0;
-
+
+ /* if a method uses DownloadLimit, we switch to SingleInstance mode */
+ if(_config->FindI("Acquire::"+Access+"::DlLimit",0) > 0)
+ Conf->SingleInstance = true;
+
return Conf;
}
/*}}}*/
diff --git a/debian/changelog b/debian/changelog
index 2022448a0..34f8cec03 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-apt (0.6.42.4) unstable; urgency=low
+apt (0.6.43) unstable; urgency=low
* Merge bubulle@debian.org--2005/apt--main--0 up to patch-132:
* zh_CN.po: Completed to 510 strings(Closes: #338267)
@@ -9,8 +9,9 @@ apt (0.6.42.4) unstable; urgency=low
* fix bug in pkgCache::VerIterator::end() (thanks to Daniel Burrows)
(closes: #339533)
* pkgAcqFile is more flexible now (closes: #57091)
+ * support a download rate limit for http (closes: #146877)
- --
+ --
apt (0.6.42.3) unstable; urgency=low
diff --git a/doc/examples/configure-index b/doc/examples/configure-index
index a93b74349..9e851d753 100644
--- a/doc/examples/configure-index
+++ b/doc/examples/configure-index
@@ -117,6 +117,7 @@ Acquire
No-Cache "false";
Max-Age "86400"; // 1 Day age on index files
No-Store "false"; // Prevent the cache from storing archives
+ Dl-Limit "7"; // 7Kb/sec maximum download rate
};
ftp
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)
diff --git a/methods/http.h b/methods/http.h
index c5a4d0e86..541e2952c 100644
--- a/methods/http.h
+++ b/methods/http.h
@@ -31,6 +31,11 @@ class CircleBuf
unsigned long MaxGet;
struct timeval Start;
+ static unsigned long BwReadLimit;
+ static unsigned long BwTickReadData;
+ static struct timeval BwReadTick;
+ static const unsigned int BW_HZ;
+
unsigned long LeftRead()
{
unsigned long Sz = Size - (InP - OutP);