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/*****************************************************************************
Copyright (c) 2010, 2011, 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 Street, Suite 500, Boston, MA 02110-1335 USA
*****************************************************************************/
/**************************************************//**
@file include/os0file.ic
The interface to the operating system file io
Created 2/20/2010 Jimmy Yang
*******************************************************/
#include "univ.i"
#ifdef UNIV_PFS_IO
/****************************************************************//**
NOTE! Please use the corresponding macro os_file_create_simple(),
not directly this function!
A performance schema instrumented wrapper function for
os_file_create_simple() which opens or creates a file.
@return own: handle to the file, not defined if error, error number
can be retrieved with os_file_get_last_error */
UNIV_INLINE
os_file_t
pfs_os_file_create_simple_func(
/*===========================*/
mysql_pfs_key_t key, /*!< in: Performance Schema Key */
const char* name, /*!< in: name of the file or path as a
null-terminated string */
ulint create_mode,/*!< in: create mode */
ulint access_type,/*!< in: OS_FILE_READ_ONLY or
OS_FILE_READ_WRITE */
ibool* success,/*!< out: TRUE if succeed, FALSE if error */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
os_file_t file;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
/* register a file open or creation depending on "create_mode" */
register_pfs_file_open_begin(&state, locker, key,
((create_mode == OS_FILE_CREATE)
? PSI_FILE_CREATE
: PSI_FILE_OPEN),
name, src_file, src_line);
file = os_file_create_simple_func(name, create_mode,
access_type, success);
/* Regsiter the returning "file" value with the system */
register_pfs_file_open_end(locker, file);
return(file);
}
/****************************************************************//**
NOTE! Please use the corresponding macro
os_file_create_simple_no_error_handling(), not directly this function!
A performance schema instrumented wrapper function for
os_file_create_simple_no_error_handling(). Add instrumentation to
monitor file creation/open.
@return own: handle to the file, not defined if error, error number
can be retrieved with os_file_get_last_error */
UNIV_INLINE
os_file_t
pfs_os_file_create_simple_no_error_handling_func(
/*=============================================*/
mysql_pfs_key_t key, /*!< in: Performance Schema Key */
const char* name, /*!< in: name of the file or path as a
null-terminated string */
ulint create_mode, /*!< in: file create mode */
ulint access_type,/*!< in: OS_FILE_READ_ONLY,
OS_FILE_READ_WRITE, or
OS_FILE_READ_ALLOW_DELETE; the last option is
used by a backup program reading the file */
ibool* success,/*!< out: TRUE if succeed, FALSE if error */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
os_file_t file;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
/* register a file open or creation depending on "create_mode" */
register_pfs_file_open_begin(&state, locker, key,
((create_mode == OS_FILE_CREATE)
? PSI_FILE_CREATE
: PSI_FILE_OPEN),
name, src_file, src_line);
file = os_file_create_simple_no_error_handling_func(
name, create_mode, access_type, success);
register_pfs_file_open_end(locker, file);
return(file);
}
/****************************************************************//**
NOTE! Please use the corresponding macro os_file_create(), not directly
this function!
A performance schema wrapper function for os_file_create().
Add instrumentation to monitor file creation/open.
@return own: handle to the file, not defined if error, error number
can be retrieved with os_file_get_last_error */
UNIV_INLINE
os_file_t
pfs_os_file_create_func(
/*====================*/
mysql_pfs_key_t key, /*!< in: Performance Schema Key */
const char* name, /*!< in: name of the file or path as a
null-terminated string */
ulint create_mode,/*!< in: file create mode */
ulint purpose,/*!< in: OS_FILE_AIO, if asynchronous,
non-buffered i/o is desired,
OS_FILE_NORMAL, if any normal file;
NOTE that it also depends on type, os_aio_..
and srv_.. variables whether we really use
async i/o or unbuffered i/o: look in the
function source code for the exact rules */
ulint type, /*!< in: OS_DATA_FILE or OS_LOG_FILE */
ibool* success,/*!< out: TRUE if succeed, FALSE if error */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
os_file_t file;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
/* register a file open or creation depending on "create_mode" */
register_pfs_file_open_begin(&state, locker, key,
((create_mode == OS_FILE_CREATE)
? PSI_FILE_CREATE
: PSI_FILE_OPEN),
name, src_file, src_line);
file = os_file_create_func(name, create_mode, purpose, type, success);
register_pfs_file_open_end(locker, file);
return(file);
}
/***********************************************************************//**
NOTE! Please use the corresponding macro os_file_close(), not directly
this function!
A performance schema instrumented wrapper function for os_file_close().
@return TRUE if success */
UNIV_INLINE
ibool
pfs_os_file_close_func(
/*===================*/
os_file_t file, /*!< in, own: handle to a file */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
/* register the file close */
register_pfs_file_io_begin(&state, locker, file, 0, PSI_FILE_CLOSE,
src_file, src_line);
result = os_file_close_func(file);
register_pfs_file_io_end(locker, 0);
return(result);
}
/*******************************************************************//**
NOTE! Please use the corresponding macro os_aio(), not directly this
function!
Performance schema instrumented wrapper function of os_aio() which
requests an asynchronous i/o operation.
@return TRUE if request was queued successfully, FALSE if fail */
UNIV_INLINE
ibool
pfs_os_aio_func(
/*============*/
ulint type, /*!< in: OS_FILE_READ or OS_FILE_WRITE */
ulint mode, /*!< in: OS_AIO_NORMAL etc. I/O mode */
const char* name, /*!< in: name of the file or path as a
null-terminated string */
os_file_t file, /*!< in: handle to a file */
void* buf, /*!< in: buffer where to read or from which
to write */
os_offset_t offset, /*!< in: file offset where to read or write */
ulint n, /*!< in: number of bytes to read or write */
fil_node_t* message1,/*!< in: message for the aio handler
(can be used to identify a completed
aio operation); ignored if mode is
OS_AIO_SYNC */
void* message2,/*!< in: message for the aio handler
(can be used to identify a completed
aio operation); ignored if mode is
OS_AIO_SYNC */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
/* Register the read or write I/O depending on "type" */
register_pfs_file_io_begin(&state, locker, file, n,
(type == OS_FILE_WRITE)
? PSI_FILE_WRITE
: PSI_FILE_READ,
src_file, src_line);
result = os_aio_func(type, mode, name, file, buf, offset,
n, message1, message2);
register_pfs_file_io_end(locker, n);
return(result);
}
/*******************************************************************//**
NOTE! Please use the corresponding macro os_file_read(), not directly
this function!
This is the performance schema instrumented wrapper function for
os_file_read() which requests a synchronous read operation.
@return TRUE if request was successful, FALSE if fail */
UNIV_INLINE
ibool
pfs_os_file_read_func(
/*==================*/
os_file_t file, /*!< in: handle to a file */
void* buf, /*!< in: buffer where to read */
os_offset_t offset, /*!< in: file offset where to read */
ulint n, /*!< in: number of bytes to read */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
register_pfs_file_io_begin(&state, locker, file, n, PSI_FILE_READ,
src_file, src_line);
result = os_file_read_func(file, buf, offset, n);
register_pfs_file_io_end(locker, n);
return(result);
}
/*******************************************************************//**
NOTE! Please use the corresponding macro
os_file_read_no_error_handling(), not directly this function!
This is the performance schema instrumented wrapper function for
os_file_read_no_error_handling() which requests a synchronous
positioned read operation. This function does not do any error
handling. In case of error it returns FALSE.
@return TRUE if request was successful, FALSE if fail */
UNIV_INLINE
ibool
pfs_os_file_read_no_error_handling_func(
/*====================================*/
os_file_t file, /*!< in: handle to a file */
void* buf, /*!< in: buffer where to read */
os_offset_t offset, /*!< in: file offset where to read */
ulint n, /*!< in: number of bytes to read */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
register_pfs_file_io_begin(&state, locker, file, n, PSI_FILE_READ,
src_file, src_line);
result = os_file_read_no_error_handling_func(file, buf, offset, n);
register_pfs_file_io_end(locker, n);
return(result);
}
/*******************************************************************//**
NOTE! Please use the corresponding macro os_file_write(), not directly
this function!
This is the performance schema instrumented wrapper function for
os_file_write() which requests a synchronous write operation.
@return TRUE if request was successful, FALSE if fail */
UNIV_INLINE
ibool
pfs_os_file_write_func(
/*===================*/
const char* name, /*!< in: name of the file or path as a
null-terminated string */
os_file_t file, /*!< in: handle to a file */
const void* buf, /*!< in: buffer from which to write */
os_offset_t offset, /*!< in: file offset where to write */
ulint n, /*!< in: number of bytes to write */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
register_pfs_file_io_begin(&state, locker, file, n, PSI_FILE_WRITE,
src_file, src_line);
result = os_file_write_func(name, file, buf, offset, n);
register_pfs_file_io_end(locker, n);
return(result);
}
/***********************************************************************//**
NOTE! Please use the corresponding macro os_file_flush(), not directly
this function!
This is the performance schema instrumented wrapper function for
os_file_flush() which flushes the write buffers of a given file to the disk.
@return TRUE if success */
UNIV_INLINE
ibool
pfs_os_file_flush_func(
/*===================*/
os_file_t file, /*!< in, own: handle to a file */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
register_pfs_file_io_begin(&state, locker, file, 0, PSI_FILE_SYNC,
src_file, src_line);
result = os_file_flush_func(file);
register_pfs_file_io_end(locker, 0);
return(result);
}
/***********************************************************************//**
NOTE! Please use the corresponding macro os_file_rename(), not directly
this function!
This is the performance schema instrumented wrapper function for
os_file_rename()
@return TRUE if success */
UNIV_INLINE
ibool
pfs_os_file_rename_func(
/*====================*/
mysql_pfs_key_t key, /*!< in: Performance Schema Key */
const char* oldpath,/*!< in: old file path as a null-terminated
string */
const char* newpath,/*!< in: new file path */
const char* src_file,/*!< in: file name where func invoked */
ulint src_line)/*!< in: line where the func invoked */
{
ibool result;
struct PSI_file_locker* locker = NULL;
PSI_file_locker_state state;
register_pfs_file_open_begin(&state, locker, key, PSI_FILE_RENAME, newpath,
src_file, src_line);
result = os_file_rename_func(oldpath, newpath);
register_pfs_file_open_end(locker, 0);
return(result);
}
#endif /* UNIV_PFS_IO */
|
