From 72e7f011b29998d8a3e15eb5b381ef962af5fe5b Mon Sep 17 00:00:00 2001 From: Karen Arutyunov Date: Fri, 5 Apr 2019 10:30:58 +0300 Subject: Upgrade to 8.0.15 --- mysql/thr_cond.h | 201 ------------------------------------------------------- 1 file changed, 201 deletions(-) delete mode 100644 mysql/thr_cond.h (limited to 'mysql/thr_cond.h') diff --git a/mysql/thr_cond.h b/mysql/thr_cond.h deleted file mode 100644 index 95df29d..0000000 --- a/mysql/thr_cond.h +++ /dev/null @@ -1,201 +0,0 @@ -#ifndef THR_COND_INCLUDED -#define THR_COND_INCLUDED - -/* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ - -/** - MySQL condition variable implementation. - - There are three "layers": - 1) native_cond_*() - Functions that map directly down to OS primitives. - Windows - ConditionVariable - Other OSes - pthread - 2) my_cond_*() - Functions that use SAFE_MUTEX (default for debug). - Otherwise native_cond_*() is used. - 3) mysql_cond*() - Functions that include Performance Schema instrumentation. - See include/mysql/psi/mysql_thread.h -*/ - -#include "my_thread.h" -#include "thr_mutex.h" - -C_MODE_START - -#ifdef _WIN32 -typedef CONDITION_VARIABLE native_cond_t; -#else -typedef pthread_cond_t native_cond_t; -#endif - -#ifdef _WIN32 -/** - Convert abstime to milliseconds -*/ - -static DWORD get_milliseconds(const struct timespec *abstime) -{ -#ifndef HAVE_STRUCT_TIMESPEC - long long millis; - union ft64 now; - - if (abstime == NULL) - return INFINITE; - - GetSystemTimeAsFileTime(&now.ft); - - /* - Calculate time left to abstime - - subtract start time from current time(values are in 100ns units) - - convert to millisec by dividing with 10000 - */ - millis= (abstime->tv.i64 - now.i64) / 10000; - - /* Don't allow the timeout to be negative */ - if (millis < 0) - return 0; - - /* - Make sure the calculated timeout does not exceed original timeout - value which could cause "wait for ever" if system time changes - */ - if (millis > abstime->max_timeout_msec) - millis= abstime->max_timeout_msec; - - if (millis > UINT_MAX) - millis= UINT_MAX; - - return (DWORD)millis; -#else - /* - Convert timespec to millis and subtract current time. - my_getsystime() returns time in 100 ns units. - */ - ulonglong future= abstime->tv_sec * 1000 + abstime->tv_nsec / 1000000; - ulonglong now= my_getsystime() / 10000; - /* Don't allow the timeout to be negative. */ - if (future < now) - return 0; - return (DWORD)(future - now); -#endif -} -#endif /* _WIN32 */ - -static inline int native_cond_init(native_cond_t *cond) -{ -#ifdef _WIN32 - InitializeConditionVariable(cond); - return 0; -#else - /* pthread_condattr_t is not used in MySQL */ - return pthread_cond_init(cond, NULL); -#endif -} - -static inline int native_cond_destroy(native_cond_t *cond) -{ -#ifdef _WIN32 - return 0; /* no destroy function */ -#else - return pthread_cond_destroy(cond); -#endif -} - -static inline int native_cond_timedwait(native_cond_t *cond, - native_mutex_t *mutex, - const struct timespec *abstime) -{ -#ifdef _WIN32 - DWORD timeout= get_milliseconds(abstime); - if (!SleepConditionVariableCS(cond, mutex, timeout)) - return ETIMEDOUT; - return 0; -#else - return pthread_cond_timedwait(cond, mutex, abstime); -#endif -} - -static inline int native_cond_wait(native_cond_t *cond, native_mutex_t *mutex) -{ -#ifdef _WIN32 - if (!SleepConditionVariableCS(cond, mutex, INFINITE)) - return ETIMEDOUT; - return 0; -#else - return pthread_cond_wait(cond, mutex); -#endif -} - -static inline int native_cond_signal(native_cond_t *cond) -{ -#ifdef _WIN32 - WakeConditionVariable(cond); - return 0; -#else - return pthread_cond_signal(cond); -#endif -} - -static inline int native_cond_broadcast(native_cond_t *cond) -{ -#ifdef _WIN32 - WakeAllConditionVariable(cond); - return 0; -#else - return pthread_cond_broadcast(cond); -#endif -} - -#ifdef SAFE_MUTEX -int safe_cond_wait(native_cond_t *cond, my_mutex_t *mp, - const char *file, uint line); -int safe_cond_timedwait(native_cond_t *cond, my_mutex_t *mp, - const struct timespec *abstime, - const char *file, uint line); -#endif - -static inline int my_cond_timedwait(native_cond_t *cond, my_mutex_t *mp, - const struct timespec *abstime -#ifdef SAFE_MUTEX - , const char *file, uint line -#endif - ) -{ -#ifdef SAFE_MUTEX - return safe_cond_timedwait(cond, mp, abstime, file, line); -#else - return native_cond_timedwait(cond, mp, abstime); -#endif -} - -static inline int my_cond_wait(native_cond_t *cond, my_mutex_t *mp -#ifdef SAFE_MUTEX - , const char *file, uint line -#endif - ) -{ -#ifdef SAFE_MUTEX - return safe_cond_wait(cond, mp, file, line); -#else - return native_cond_wait(cond, mp); -#endif -} - -C_MODE_END - -#endif /* THR_COND_INCLUDED */ -- cgit v1.1