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Diffstat (limited to 'cryptominisat5/cryptominisat-5.6.3/src/time_mem.h')
| -rw-r--r-- | cryptominisat5/cryptominisat-5.6.3/src/time_mem.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/cryptominisat5/cryptominisat-5.6.3/src/time_mem.h b/cryptominisat5/cryptominisat-5.6.3/src/time_mem.h new file mode 100644 index 000000000..83f830bde --- /dev/null +++ b/cryptominisat5/cryptominisat-5.6.3/src/time_mem.h @@ -0,0 +1,144 @@ +/********************************************************* +MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson +CryptoMiniSat -- Copyright (c) 2009 Mate Soos + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +***********************************************************/ + +#ifndef TIME_MEM_H +#define TIME_MEM_H +#include "constants.h" +#include <cassert> +#include <time.h> + +#include <ios> +#include <iostream> +#include <fstream> +#include <string> +#include <signal.h> + +// note: MinGW64 defines both __MINGW32__ and __MINGW64__ +#if defined (_MSC_VER) || defined (__MINGW32__) || defined(_WIN32) +#include <ctime> +static inline double cpuTime(void) +{ + return (double)clock() / CLOCKS_PER_SEC; +} +static inline double cpuTimeTotal(void) +{ + return (double)clock() / CLOCKS_PER_SEC; +} + +#else //_MSC_VER +#include <sys/time.h> +#include <sys/resource.h> +#include <unistd.h> + +static inline double cpuTime(void) +{ + struct rusage ru; + #ifdef RUSAGE_THREAD + int ret = getrusage(RUSAGE_THREAD, &ru); + #else + int ret = getrusage(RUSAGE_SELF, &ru); + #endif + + //NOTE: This is needed because Windows' Linux subsystem returns non-zero + //and I can't figure out a way to detect Windows. + if (ret != 0) { + return (double)clock() / CLOCKS_PER_SEC; + } + + return (double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec / 1000000.0; +} + +static inline double cpuTimeTotal(void) +{ + struct rusage ru; + int ret = getrusage(RUSAGE_SELF, &ru); + assert(ret == 0); + + return (double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec / 1000000.0; +} + +#endif + +#if defined(__linux__) +// process_mem_usage(double &, double &) - takes two doubles by reference, +// attempts to read the system-dependent data for a process' virtual memory +// size and resident set size, and return the results in KB. +// +// On failure, returns 0.0, 0.0 +static inline uint64_t memUsedTotal(double& vm_usage) +{ + //double& vm_usage + using std::ios_base; + using std::ifstream; + using std::string; + + vm_usage = 0.0; + + // 'file' stat seems to give the most reliable results + // + ifstream stat_stream("/proc/self/stat",ios_base::in); + + // dummy vars for leading entries in stat that we don't care about + // + string pid, comm, state, ppid, pgrp, session, tty_nr; + string tpgid, flags, minflt, cminflt, majflt, cmajflt; + string utime, stime, cutime, cstime, priority, nice; + string O, itrealvalue, starttime; + + // the two fields we want + // + unsigned long vsize; + long rss; + + stat_stream >> pid >> comm >> state >> ppid >> pgrp >> session >> tty_nr + >> tpgid >> flags >> minflt >> cminflt >> majflt >> cmajflt + >> utime >> stime >> cutime >> cstime >> priority >> nice + >> O >> itrealvalue >> starttime >> vsize >> rss; // don't care about the rest + + stat_stream.close(); + + long page_size_kb = sysconf(_SC_PAGE_SIZE); // in case x86-64 is configured to use 2MB pages + vm_usage = vsize; + double resident_set = (double)rss * (double)page_size_kb; + + return resident_set; +} +#elif defined(__FreeBSD__) +#include <sys/types.h> +inline uint64_t memUsedTotal(double& vm_usage) +{ + vm_usage = 0; + + struct rusage ru; + getrusage(RUSAGE_SELF, &ru); + return ru.ru_maxrss*1024; +} +#else //Windows +static inline size_t memUsedTotal(double& vm_usage) +{ + vm_usage = 0; + return 0; +} +#endif + +#endif //TIME_MEM_H |