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use lazy scopes to avoid push/pop overhead

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-17 08:07:06 -07:00
parent 558233dd8e
commit f0308436b5
6 changed files with 51 additions and 12 deletions
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8
src/util/rlimit.cpp
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@ -35,7 +35,7 @@ reslimit::reslimit():
m_cancel(0),
m_suspend(false),
m_count(0),
m_limit(0) {
m_limit(std::numeric_limits<uint64_t>::max()) {
}
uint64_t reslimit::count() const {
@ -55,15 +55,15 @@ bool reslimit::inc(unsigned offset) {
void reslimit::push(unsigned delta_limit) {
uint64_t new_limit = delta_limit + m_count;
if (new_limit <= m_count) {
new_limit = 0;
new_limit = std::numeric_limits<uint64_t>::max();
}
m_limits.push_back(m_limit);
m_limit = m_limit==0 ? new_limit : std::min(new_limit, m_limit);
m_limit = std::min(new_limit, m_limit);
m_cancel = 0;
}
void reslimit::pop() {
if (m_count > m_limit && m_limit > 0) {
if (m_count > m_limit) {
m_count = m_limit;
}
m_limit = m_limits.back();

2
src/util/rlimit.h
View file

@ -50,7 +50,7 @@ public:
uint64_t count() const;
bool suspended() const { return m_suspend; }
inline bool not_canceled() const { return (m_cancel == 0 && (m_limit == 0 || m_count <= m_limit)) || m_suspend; }
inline bool not_canceled() const { return (m_cancel == 0 && m_count <= m_limit) || m_suspend; }
inline bool is_canceled() const { return !not_canceled(); }
char const* get_cancel_msg() const;
void cancel();