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-rw-r--r--libbuild2/context.hxx17
1 files changed, 17 insertions, 0 deletions
diff --git a/libbuild2/context.hxx b/libbuild2/context.hxx
index b71a068..27c3cc0 100644
--- a/libbuild2/context.hxx
+++ b/libbuild2/context.hxx
@@ -652,6 +652,15 @@ namespace build2
// Note: see also the trace_* data members that, if needed, must be set
// separately, after construction.
//
+ struct reserves
+ {
+ size_t targets;
+ size_t variables;
+
+ reserves (): targets (0), variables (0) {}
+ reserves (size_t t, size_t v): targets (t), variables (v) {}
+ };
+
explicit
context (scheduler&,
global_mutexes&,
@@ -662,9 +671,17 @@ namespace build2
bool no_diag_buffer = false,
bool keep_going = true,
const strings& cmd_vars = {},
+ reserves = {0, 160},
optional<context*> module_context = nullptr,
const loaded_modules_lock* inherited_mudules_lock = nullptr);
+ // Reserve elements in containers to avoid re-allocation/re-hashing. Zero
+ // values are ignored (that is, the corresponding container reserve()
+ // function is not called). Can only be called in the load phase.
+ //
+ void
+ reserve (reserves);
+
// Enter project-wide (as opposed to global) variable overrides.
//
void