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garbage collect all api::object references when calling del_context. Request issue #679

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-07-13 22:26:21 -07:00
parent f30fb7639e
commit b080e3a216
25 changed files with 115 additions and 56 deletions
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13
src/api/api_util.h
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@ -31,15 +31,20 @@ Revision History:
#define CHECK_REF_COUNT(a) (reinterpret_cast<ast const*>(a)->get_ref_count() > 0)
namespace api {
class context;
// Generic wrapper for ref-count objects exposed by the API
class object {
unsigned m_ref_count;
unsigned m_id;
context& m_context;
public:
object():m_ref_count(0) {}
object(context& c);
virtual ~object() {}
unsigned ref_count() const { return m_ref_count; }
void inc_ref() { m_ref_count++; }
void dec_ref() { SASSERT(m_ref_count > 0); m_ref_count--; if (m_ref_count == 0) dealloc(this); }
unsigned id() const { return m_id; }
void inc_ref();
void dec_ref();
};
};
@ -82,6 +87,7 @@ inline lbool to_lbool(Z3_lbool b) { return static_cast<lbool>(b); }
struct Z3_params_ref : public api::object {
params_ref m_params;
Z3_params_ref(api::context& c): api::object(c) {}
virtual ~Z3_params_ref() {}
};
@ -91,6 +97,7 @@ inline params_ref to_param_ref(Z3_params p) { return p == 0 ? params_ref() : to_
struct Z3_param_descrs_ref : public api::object {
param_descrs m_descrs;
Z3_param_descrs_ref(api::context& c): api::object(c) {}
virtual ~Z3_param_descrs_ref() {}
};