emo/thin-provisioning-tools
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[caching] add grow method to the hint_array wrapper

Browse Source
This commit is contained in:
Joe Thornber 2013-09-24 12:12:57 +01:00
parent 17f7c982f2
commit 8408ab12f8
2 changed files with 31 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
caching/hint_array.cc
View File

@ -106,6 +106,29 @@ namespace {
switch (width) {
#define xx(n) case n: return set_hint<n>(base, index, data)
all_widths
#undef xx
}
}
//--------------------------------
template <uint32_t WIDTH>
void grow(shared_ptr<array_base> base, unsigned new_nr_entries, vector<unsigned char> const &value) {
typedef hint_traits<WIDTH> traits;
typedef array<traits> ha;
shared_ptr<ha> a = dynamic_pointer_cast<ha>(base);
if (!a)
throw runtime_error("internal error: couldn't cast hint array");
a->grow(new_nr_entries, value);
}
void grow_(uint32_t width, shared_ptr<array_base> base,
unsigned new_nr_entries, vector<unsigned char> const &value)
{
switch (width) {
#define xx(n) case n: return grow<n>(base, new_nr_entries, value)
all_widths
#undef xx
}
}
@ -144,4 +167,10 @@ hint_array::set_hint(unsigned index, vector<unsigned char> const &data)
set_hint_(width_, impl_, index, data);
}
void
hint_array::grow(unsigned new_nr_entries, vector<unsigned char> const &value)
{
grow_(width_, impl_, new_nr_entries, value);
}
//----------------------------------------------------------------

2
caching/hint_array.h
View File

@ -47,6 +47,8 @@ namespace caching {
void get_hint(unsigned index, vector<unsigned char> &data) const;
void set_hint(unsigned index, vector<unsigned char> const &data);
void grow(unsigned new_nr_entries, vector<unsigned char> const &value);
private:
unsigned width_;
boost::shared_ptr<persistent_data::array_base> impl_;