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// file : libbuild2/context.ixx -*- C++ -*-
// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
namespace build2
{
// wait_guard
//
inline wait_guard::
wait_guard ()
: start_count (0), task_count (nullptr), phase (false)
{
}
inline wait_guard::
wait_guard (atomic_count& tc, bool p)
: wait_guard (0, tc, p)
{
}
inline wait_guard::
wait_guard (size_t sc, atomic_count& tc, bool p)
: start_count (sc), task_count (&tc), phase (p)
{
}
inline wait_guard::
~wait_guard () noexcept (false)
{
if (task_count != nullptr)
wait ();
}
inline wait_guard::
wait_guard (wait_guard&& x)
: start_count (x.start_count), task_count (x.task_count), phase (x.phase)
{
x.task_count = nullptr;
}
inline wait_guard& wait_guard::
operator= (wait_guard&& x)
{
if (&x != this)
{
assert (task_count == nullptr);
start_count = x.start_count; task_count = x.task_count; phase = x.phase;
x.task_count = nullptr;
}
return *this;
}
inline void wait_guard::
wait ()
{
phase_unlock u (phase);
sched.wait (start_count, *task_count);
task_count = nullptr;
}
inline void
set_current_mif (const meta_operation_info& mif)
{
if (current_mname != mif.name)
{
current_mname = mif.name;
global_scope->rw ().assign (var_build_meta_operation) = mif.name;
}
current_mif = &mif;
current_on = 0; // Reset.
}
inline void
set_current_oif (const operation_info& inner_oif,
const operation_info* outer_oif,
bool diag_noise)
{
current_oname = (outer_oif == nullptr ? inner_oif : *outer_oif).name;
current_inner_oif = &inner_oif;
current_outer_oif = outer_oif;
current_on++;
current_mode = inner_oif.mode;
current_diag_noise = diag_noise;
// Reset counters (serial execution).
//
dependency_count.store (0, memory_order_relaxed);
target_count.store (0, memory_order_relaxed);
skip_count.store (0, memory_order_relaxed);
}
}
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