mirror of
https://github.com/MariaDB/server.git
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dfa90257f6
handle_slave_io(), handle_slave_sql(), os_thread_exit(): Remove a redundant pthread_exit(nullptr) call, because it would cause SIGSEGV. mysql_print_status(): Add MEM_MAKE_DEFINED() to work around some missing instrumentation around mallinfo2(). que_graph_free_stat_list(): Invoke que_node_get_next(node) before que_graph_free_recursive(node). That is the logical and MSAN_OPTIONS=poison_in_dtor=1 compatible way of freeing memory. ins_node_t::~ins_node_t(): Invoke mem_heap_free(entry_sys_heap). que_graph_free_recursive(): Rely on ins_node_t::~ins_node_t(). fts_t::~fts_t(): Invoke mem_heap_free(fts_heap). fts_free(): Replace with direct calls to fts_t::~fts_t(). The failures in free_root() due to MSAN_OPTIONS=poison_in_dtor=1 will be covered in MDEV-30942.
98 lines
3.3 KiB
C
98 lines
3.3 KiB
C
/*****************************************************************************
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Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
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Copyright (c) 2017, 2020, MariaDB Corporation.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/os0thread.h
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The interface to the operating system
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process and thread control primitives
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Created 9/8/1995 Heikki Tuuri
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*******************************************************/
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#ifndef os0thread_h
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#define os0thread_h
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#include "univ.i"
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/* Possible fixed priorities for threads */
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#define OS_THREAD_PRIORITY_NONE 100
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#define OS_THREAD_PRIORITY_BACKGROUND 1
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#define OS_THREAD_PRIORITY_NORMAL 2
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#define OS_THREAD_PRIORITY_ABOVE_NORMAL 3
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#ifdef _WIN32
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typedef DWORD os_thread_t;
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typedef DWORD os_thread_id_t; /*!< In Windows the thread id
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is an unsigned long int */
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extern "C" {
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typedef LPTHREAD_START_ROUTINE os_thread_func_t;
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}
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/** Macro for specifying a Windows thread start function. */
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#define DECLARE_THREAD(func) WINAPI func
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#else
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typedef pthread_t os_thread_t;
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typedef pthread_t os_thread_id_t; /*!< In Unix we use the thread
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handle itself as the id of
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the thread */
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extern "C" { typedef void* (*os_thread_func_t)(void*); }
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/** Macro for specifying a POSIX thread start function. */
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#define DECLARE_THREAD(func) func
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#endif /* _WIN32 */
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/* Define a function pointer type to use in a typecast */
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typedef void* (*os_posix_f_t) (void*);
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#ifdef HAVE_PSI_INTERFACE
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/* Define for performance schema registration key */
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typedef unsigned int mysql_pfs_key_t;
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#endif /* HAVE_PSI_INTERFACE */
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#ifndef _WIN32
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#define os_thread_eq(a,b) pthread_equal(a, b)
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#define os_thread_yield() sched_yield()
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#define os_thread_get_curr_id() pthread_self()
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#else
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bool os_thread_eq(os_thread_id_t a, os_thread_id_t b);
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void os_thread_yield();
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os_thread_id_t os_thread_get_curr_id();
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#endif
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/****************************************************************//**
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Creates a new thread of execution. The execution starts from
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the function given.
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NOTE: We count the number of threads in os_thread_exit(). A created
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thread should always use that to exit so thatthe thread count will be
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decremented.
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We do not return an error code because if there is one, we crash here. */
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os_thread_t os_thread_create(os_thread_func_t func, void *arg= nullptr);
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/** Detach and terminate the current thread. */
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os_thread_ret_t os_thread_exit();
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/*****************************************************************//**
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The thread sleeps at least the time given in microseconds. */
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void
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os_thread_sleep(
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/*============*/
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ulint tm); /*!< in: time in microseconds */
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#endif
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