GothenburgBitFactory/taskwarrior
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Performance

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- Added std::vector::reserve calls to reduce allocations and copying.
This commit is contained in:
Paul Beckingham 2011-10-21 00:12:45 -04:00
parent bc12ac1ee6
commit 670fe1f3e5
1 changed files with 16 additions and 2 deletions
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18
src/TDB2.cpp
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@ -271,6 +271,9 @@ void TF2::load_tasks ()
int line_number = 0;
try
{
// Reduce unnecessary allocations/copies.
_tasks.reserve (_lines.size ());
std::vector <std::string>::iterator i;
for (i = _lines.begin (); i != _lines.end (); ++i)
{
@ -1519,6 +1522,10 @@ int TDB2::gc ()
std::vector <Task> pending_tasks_after;
std::vector <Task> completed_tasks_after;
// Reduce unnecessary allocation/copies.
pending_tasks_after.reserve (pending_tasks.size ());
completed_tasks_after.reserve (completed_tasks.size ());
// Scan all pending tasks, looking for any that need to be relocated to
// completed, or need to be 'woken'.
Date now;
@ -1624,8 +1631,15 @@ int TDB2::next_id ()
////////////////////////////////////////////////////////////////////////////////
const std::vector <Task> TDB2::all_tasks ()
{
std::vector <Task> all = pending.get_tasks ();
std::vector <Task> extra = completed.get_tasks ();
std::vector <Task> all (pending._tasks.size () +
pending._added_tasks.size () +
completed._tasks.size () +
completed._added_tasks.size ());
all = pending.get_tasks ();
std::vector <Task> extra (completed._tasks.size () +
completed._added_tasks.size ());
extra = completed.get_tasks ();
std::vector <Task>::iterator task;
for (task = extra.begin (); task != extra.end (); ++task)