X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=promise.h;h=90ec1d2050bc650b714eebe8f64f5aabde0de7e0;hp=83198b27758ffffa4f783986f2f1125e7c654c48;hb=5ea8e3d5d861ed363e5ac5f3b20b8181dd197efb;hpb=1bc8782b55cab0503f1b64529f993f0b9e3a1846 diff --git a/promise.h b/promise.h index 83198b27..90ec1d20 100644 --- a/promise.h +++ b/promise.h @@ -9,23 +9,59 @@ #include +#include "modeltypes.h" +#include "mymemory.h" +#include "stl-model.h" + class ModelAction; +struct future_value { + uint64_t value; + modelclock_t expiration; + thread_id_t tid; +}; + class Promise { public: - Promise(ModelAction *act, uint64_t value, modelclock_t expiration) : - value(value), expiration(expiration), read(act), numthreads(1) - { } - modelclock_t get_expiration() const {return expiration;} - ModelAction * get_action() const { return read; } - int increment_threads() { return ++numthreads; } - uint64_t get_value() const { return value; } + Promise(ModelAction *read, struct future_value fv); + bool add_reader(ModelAction *reader); + ModelAction * get_reader(unsigned int i) const; + unsigned int get_num_readers() const { return readers.size(); } + bool eliminate_thread(thread_id_t tid); + void add_thread(thread_id_t tid); + bool thread_is_available(thread_id_t tid) const; + bool has_failed() const; + void set_write(const ModelAction *act) { write = act; } + const ModelAction * get_write() const { return write; } + int get_num_available_threads() const { return num_available_threads; } + bool is_compatible(const ModelAction *act) const; + bool is_compatible_exclusive(const ModelAction *act) const; + bool same_value(const ModelAction *write) const; + bool same_location(const ModelAction *act) const; + + modelclock_t get_expiration() const { return fv.expiration; } + uint64_t get_value() const { return fv.value; } + struct future_value get_fv() const { return fv; } + + void print() const; + bool equals(const Promise *x) const { return this == x; } + bool equals(const ModelAction *x) const { return false; } + + SNAPSHOTALLOC private: - const uint64_t value; - const modelclock_t expiration; - ModelAction * const read; - unsigned int numthreads; + /** @brief Thread ID(s) for thread(s) that potentially can satisfy this + * promise */ + SnapVector available_thread; + + int num_available_threads; + + const future_value fv; + + /** @brief The action(s) which read the promised future value */ + SnapVector readers; + + const ModelAction *write; }; #endif