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Diffstat (limited to 'mysql/my_timer.h')
-rw-r--r-- | mysql/my_timer.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/mysql/my_timer.h b/mysql/my_timer.h new file mode 100644 index 0000000..08691bb --- /dev/null +++ b/mysql/my_timer.h @@ -0,0 +1,75 @@ +/* Copyright (c) 2014, 2015, 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 */ + +#ifndef MY_TIMER_H +#define MY_TIMER_H + +#include "my_global.h" /* C_MODE_START, C_MODE_END */ +#include "mysql/psi/psi.h" /* PSI_thread_key, PSI_mutex_key, PSI_memory_key */ + +/* POSIX timers API. */ +#ifdef HAVE_POSIX_TIMERS +# include <time.h> /* timer_t */ + typedef timer_t os_timer_t; +#elif HAVE_KQUEUE_TIMERS +# include <sys/types.h> /* uintptr_t */ + typedef uintptr_t os_timer_t; +#elif _WIN32 + typedef struct st_os_timer + { + HANDLE timer_handle; + my_bool timer_state; + } os_timer_t; +#endif + +typedef struct st_my_timer my_timer_t; + +/* Non-copyable timer object. */ +struct st_my_timer +{ + /* Timer ID used to identify the timer in timer requests. */ + os_timer_t id; + + /** Timer expiration notification function. */ + void (*notify_function)(my_timer_t *); +}; + +C_MODE_START + +#ifdef HAVE_PSI_INTERFACE +extern PSI_thread_key key_thread_timer_notifier; +#endif + +/* Initialize internal components. */ +int my_timer_initialize(void); + +/* Release any resources acquired. */ +void my_timer_deinitialize(void); + +/* Create a timer object. */ +int my_timer_create(my_timer_t *timer); + +/* Set the time (in milliseconds) until the next expiration of the timer. */ +int my_timer_set(my_timer_t *timer, unsigned long time); + +/* Cancel the timer */ +int my_timer_cancel(my_timer_t *timer, int *state); + +/* Delete a timer object. */ +void my_timer_delete(my_timer_t *timer); + +C_MODE_END + +#endif /* MY_TIMER_H */ |