diff options
Diffstat (limited to 'apt-pkg/contrib/mmap.cc')
-rw-r--r-- | apt-pkg/contrib/mmap.cc | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc index d233e51bc..aa184b130 100644 --- a/apt-pkg/contrib/mmap.cc +++ b/apt-pkg/contrib/mmap.cc @@ -225,22 +225,22 @@ DynamicMMap::DynamicMMap(unsigned long Flags,unsigned long const &WorkSpace, // disable Moveable if we don't grow if (Grow == 0) - Flags &= ~Moveable; + this->Flags &= ~Moveable; #ifndef __linux__ // kfreebsd doesn't have mremap, so we use the fallback - if ((Flags & Moveable) == Moveable) - Flags |= Fallback; + if ((this->Flags & Moveable) == Moveable) + this->Flags |= Fallback; #endif #ifdef _POSIX_MAPPED_FILES - if ((Flags & Fallback) != Fallback) { + if ((this->Flags & Fallback) != Fallback) { // Set the permissions. int Prot = PROT_READ; int Map = MAP_PRIVATE | MAP_ANONYMOUS; - if ((Flags & ReadOnly) != ReadOnly) + if ((this->Flags & ReadOnly) != ReadOnly) Prot |= PROT_WRITE; - if ((Flags & Public) == Public) + if ((this->Flags & Public) == Public) Map = MAP_SHARED | MAP_ANONYMOUS; // use anonymous mmap() to get the memory @@ -297,7 +297,7 @@ unsigned long DynamicMMap::RawAllocate(unsigned long Size,unsigned long Aln) { if(!Grow()) { - _error->Error(_("Dynamic MMap ran out of room. Please increase the size " + _error->Fatal(_("Dynamic MMap ran out of room. Please increase the size " "of APT::Cache-Limit. Current value: %lu. (man 5 apt.conf)"), WorkSpace); return 0; } @@ -314,7 +314,7 @@ unsigned long DynamicMMap::Allocate(unsigned long ItemSize) // Look for a matching pool entry Pool *I; Pool *Empty = 0; - for (I = Pools; I != Pools + PoolCount; I++) + for (I = Pools; I != Pools + PoolCount; ++I) { if (I->ItemSize == 0) Empty = I; @@ -342,7 +342,11 @@ unsigned long DynamicMMap::Allocate(unsigned long ItemSize) { const unsigned long size = 20*1024; I->Count = size/ItemSize; + Pool* oldPools = Pools; Result = RawAllocate(size,ItemSize); + if (Pools != oldPools) + I += Pools - oldPools; + // Does the allocation failed ? if (Result == 0 && _error->PendingError()) return 0; @@ -365,7 +369,7 @@ unsigned long DynamicMMap::WriteString(const char *String, if (Len == (unsigned long)-1) Len = strlen(String); - unsigned long Result = RawAllocate(Len+1,0); + unsigned long const Result = RawAllocate(Len+1,0); if (Result == 0 && _error->PendingError()) return 0; @@ -395,16 +399,20 @@ bool DynamicMMap::Grow() { return _error->Error(_("Unable to increase the size of the MMap as the " "limit of %lu bytes is already reached."), Limit); - unsigned long const newSize = WorkSpace + 1024*1024; + unsigned long const newSize = WorkSpace + GrowFactor; if(Fd != 0) { Fd->Seek(newSize - 1); char C = 0; Fd->Write(&C,sizeof(C)); } + + unsigned long const poolOffset = Pools - ((Pool*) Base); + if ((Flags & Fallback) != Fallback) { #if defined(_POSIX_MAPPED_FILES) && defined(__linux__) #ifdef MREMAP_MAYMOVE + if ((Flags & Moveable) == Moveable) Base = mremap(Base, WorkSpace, newSize, MREMAP_MAYMOVE); else @@ -425,6 +433,7 @@ bool DynamicMMap::Grow() { return false; } + Pools =(Pool*) Base + poolOffset; WorkSpace = newSize; return true; } |