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adding rlimit resource limit facility to provide platform and architecture independent method for canceling activities

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-09-28 13:37:59 -07:00
parent ad16cc0ce2
commit 9b3e242990
26 changed files with 165 additions and 14 deletions
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4
src/ast/ast.h
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@ -44,6 +44,7 @@ Revision History:
#include"chashtable.h"
#include"z3_exception.h"
#include"dependency.h"
#include"rlimit.h"
#define RECYCLE_FREE_AST_INDICES
@ -1424,6 +1425,7 @@ public:
void show_id_gen();
protected:
reslimit m_limit;
small_object_allocator m_alloc;
family_manager m_family_manager;
expr_array_manager m_expr_array_manager;
@ -1519,6 +1521,8 @@ public:
fid == m_user_sort_family_id;
}
reslimit& limit() { return m_limit; }
void register_plugin(symbol const & s, decl_plugin * plugin);
void register_plugin(family_id id, decl_plugin * plugin);

2
src/ast/rewriter/rewriter_def.h
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@ -578,6 +578,8 @@ void rewriter_tpl<Config>::resume_core(expr_ref & result, proof_ref & result_pr)
while (!frame_stack().empty()) {
if (m_cancel)
throw rewriter_exception(Z3_CANCELED_MSG);
if (!m().limit().inc())
throw rewriter_exception(Z3_CANCELED_MSG);
SASSERT(!ProofGen || result_stack().size() == result_pr_stack().size());
frame & fr = frame_stack().back();
expr * t = fr.m_curr;