context_base.hpp (8701B)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 | /* Relacy Race Detector * Copyright (c) 2008-2010, Dmitry S. Vyukov * All rights reserved. * This software is provided AS-IS with no warranty, either express or implied. * This software is distributed under a license and may not be copied, * modified or distributed except as expressly authorized under the * terms of the license contained in the file LICENSE.TXT in this distribution. */ #ifndef RL_CONTEXT_BASE_HPP #define RL_CONTEXT_BASE_HPP #ifdef _MSC_VER # pragma once #endif #include "base.hpp" #include "history.hpp" #include "memory.hpp" #include "test_result.hpp" #include "slab_allocator.hpp" #include "test_params.hpp" #include "random.hpp" #include "foreach.hpp" #include "thread_base.hpp" #include "context_addr_hash.hpp" #ifdef RL_DEBUGBREAK_ON_ASSERT # ifdef _MSC_VER # define RL_DEBUGBREAK_ON_ASSERT_IMPL {if (IsDebuggerPresent()) __debugbreak();} # else # define RL_DEBUGBREAK_ON_ASSERT_IMPL {__asm("int3");} # endif #else # define RL_DEBUGBREAK_ON_ASSERT_IMPL #endif #ifdef RL_DEBUGBREAK_ON_FAILURE # ifdef _MSC_VER # define RL_DEBUGBREAK_ON_FAILURE_IMPL {if (IsDebuggerPresent()) __debugbreak();} # else # define RL_DEBUGBREAK_ON_FAILURE_IMPL {__asm("int3");} # endif #else # define RL_DEBUGBREAK_ON_FAILURE_IMPL #endif namespace rl { class thread_info_base; struct atomic_data {}; struct var_data { virtual void init(thread_info_base& th) = 0; virtual bool store(thread_info_base& th) = 0; virtual bool load(thread_info_base& th) = 0; virtual ~var_data() {} // just to calm down gcc }; struct generic_mutex_data; struct condvar_data; struct sema_data; struct event_data; struct user_msg_event { string msg_; void output(std::ostream& s) const { s << msg_; } }; class context; template<int fake = 0> struct context_holder { static context* instance_; static long volatile ctx_seq; }; template<int fake> long volatile context_holder<fake>::ctx_seq = 0; class context : public thread_local_context_iface , public context_addr_hash_iface , nocopy<> { public: static context& instance() { //!!! disabled for check in operator new RL_VERIFY(context_holder<>::instance_); return *context_holder<>::instance_; } virtual atomic_data* atomic_ctor(void* ctx) = 0; virtual void atomic_dtor(atomic_data* data) = 0; virtual var_data* var_ctor() = 0; virtual void var_dtor(var_data* data) = 0; virtual generic_mutex_data* mutex_ctor(bool is_rw, bool is_exclusive_recursive, bool is_shared_recursive, bool failing_try_lock) = 0; virtual void mutex_dtor(generic_mutex_data* m) = 0; virtual condvar_data* condvar_ctor(bool allow_spurious_wakeups) = 0; virtual void condvar_dtor(condvar_data* cv) = 0; virtual sema_data* sema_ctor(bool spurious_wakeups, unsigned initial_count, unsigned max_count) = 0; virtual void sema_dtor(sema_data* cv) = 0; virtual event_data* event_ctor(bool manual_reset, bool initial_state) = 0; virtual void event_dtor(event_data* cv) = 0; virtual void rl_global_fence() = 0; virtual void sched() = 0; virtual void yield(unsigned count, debug_info_param info) = 0; virtual void fail_test(char const* desc, test_result_e res, debug_info_param info) = 0; virtual void rl_until(char const* desc, debug_info_param info) = 0; virtual void* alloc(size_t size, bool is_array, debug_info_param info) = 0; #ifdef RL_GC virtual void* alloc(size_t size, bool is_array, void(*dtor)(void*), debug_info_param info) = 0; #endif virtual void free(void* p, bool is_array, debug_info_param info) = 0; virtual void* alloc(size_t size) = 0; virtual void free(void* p) = 0; virtual size_t prev_alloc_size() = 0; virtual void set_debug_info(debug_info_param info) = 0; virtual void fiber_proc_impl(int thread_index) = 0; virtual unpark_reason park_current_thread(bool is_timed, bool allow_spurious_wakeup, bool do_switch, debug_info_param info) = 0; virtual void unpark_thread(thread_id_t th, bool do_switch, debug_info_param info) = 0; virtual void switch_back(debug_info_param info) = 0; virtual void atomic_thread_fence_acquire() = 0; virtual void atomic_thread_fence_release() = 0; virtual void atomic_thread_fence_acq_rel() = 0; virtual void atomic_thread_fence_seq_cst() = 0; virtual unsigned rand(unsigned limit, sched_type t) = 0; virtual win_waitable_object* create_thread(void*(*fn)(void*), void* ctx) = 0; virtual unpark_reason wfmo_park(void** ws, win_waitable_object** wo, size_t count, bool wait_all, bool is_timed, debug_info_param info) = 0; int get_errno(); void set_errno(int value); thread_info_base* threadx_; timestamp_t* seq_cst_fence_order_; bool invariant_executing; RL_INLINE bool collecting_history() const { return params_.collect_history && false == invariant_executing; } template<typename event_t> void exec_log(debug_info_param info, event_t const& ev); void exec_log_msg(debug_info_param info, char const* msg) { user_msg_event ev = {msg}; exec_log(info, ev); } bool is_random_sched() const { return is_random_sched_; } unsigned get_ctx_seq() const { return ctx_seq_; } void disable_preemption(); void enable_preemption(); virtual thread_id_t get_thread_count() const = 0; thread_id_t current_thread() const { return threadx_->index_; } void iteration_begin() { } protected: history_mgr history_; test_params& params_; unsigned disable_preemption_; int disable_alloc_; context(thread_id_t thread_count, test_params& params) : history_(*params.output_stream, thread_count) , params_(params) , disable_alloc_(1) { RL_VERIFY(0 == context_holder<>::instance_); context_holder<>::instance_ = this; is_random_sched_ = params_.search_type == random_scheduler_type; #ifdef _MSC_VER ctx_seq_ = _InterlockedExchangeAdd(&context_holder<>::ctx_seq, 1) + 1; #else ctx_seq_ = __sync_fetch_and_add(&context_holder<>::ctx_seq, 1) + 1; #endif } virtual ~context() { RL_VERIFY(this == context_holder<>::instance_); context_holder<>::instance_ = 0; } private: bool is_random_sched_; unsigned ctx_seq_; }; template<int fake> context* context_holder<fake>::instance_ = 0; inline context& ctx() { return context::instance(); } inline int get_errno() { return ctx().get_errno(); } inline void set_errno(int value) { return ctx().set_errno(value); } class preemption_disabler : nocopy<> { public: preemption_disabler(context& c) : c_(c) { c_.disable_preemption(); } ~preemption_disabler() { c_.enable_preemption(); } private: context& c_; }; } #define RL_HIST_IMPL(C, INFO, TYPE) \ do { \ if (C.collecting_history()) { \ rl::debug_info const& rl_info_c = INFO; \ rl::context& rl_hist_c = C; \ TYPE ev = \ /**/ #define RL_HIST_END() \ ; \ rl_hist_c.exec_log(rl_info_c, ev); \ } \ } while ((void)0, 0) \ /**/ #define RL_HIST_CTX(TYPE) RL_HIST_IMPL((*this), info, TYPE) #define RL_HIST(TYPE) RL_HIST_IMPL(c, info, TYPE) #define RL_LOG(desc) rl::ctx().exec_log_msg(RL_INFO, desc) #ifdef _MSC_VER # define RL_ASSERT_IMPL(x, res, str, info) do {if (!((void)0, (x))) {{RL_DEBUGBREAK_ON_ASSERT_IMPL} rl::ctx().fail_test(str, res, info);}} while ((void)0, 0) #else # define RL_ASSERT_IMPL(x, res, str, info) do {if (!((void)0, (x))) rl::ctx().fail_test(str, res, info);} while ((void)0, 0) #endif #define RL_ASSERT(x) RL_ASSERT_IMPL(x, rl::test_result_user_assert_failed, "assertion: " #x, RL_INFO) #define RL_UNTIL(x) do {if ((x)) rl::ctx().rl_until(#x, RL_INFO);} while ((void)0, 0) #endif |