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author | Yehonal <yehonal.azeroth@gmail.com> | 2017-10-12 20:00:52 +0200 |
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committer | Yehonal <yehonal.azeroth@gmail.com> | 2017-10-12 20:00:52 +0200 |
commit | f06f32849f1e2c72dc73287c73361174c07ed29e (patch) | |
tree | 70ace68e849cd5ca446fb36279f8125127bb8693 /deps/mysqllite/mysys/my_open.c | |
parent | 4df28fd29c6978e669f9950bd38e853fabf9fc8d (diff) |
Directory Structure [step 1]: moving files
working on #672
NOTE: This commit can't be compiled!!
Diffstat (limited to 'deps/mysqllite/mysys/my_open.c')
-rw-r--r-- | deps/mysqllite/mysys/my_open.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/deps/mysqllite/mysys/my_open.c b/deps/mysqllite/mysys/my_open.c new file mode 100644 index 0000000000..2aef97b3e3 --- /dev/null +++ b/deps/mysqllite/mysys/my_open.c @@ -0,0 +1,192 @@ +/* Copyright (C) 2000 MySQL AB, 2008-2009 Sun Microsystems, Inc + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#include "mysys_priv.h" +#include "mysys_err.h" +#include <my_dir.h> +#include <errno.h> + + +/* + Open a file + + SYNOPSIS + my_open() + FileName Fully qualified file name + Flags Read | write + MyFlags Special flags + + RETURN VALUE + File descriptor +*/ + +File my_open(const char *FileName, int Flags, myf MyFlags) + /* Path-name of file */ + /* Read | write .. */ + /* Special flags */ +{ + File fd; + DBUG_ENTER("my_open"); + DBUG_PRINT("my",("Name: '%s' Flags: %d MyFlags: %d", + FileName, Flags, MyFlags)); +#if defined(_WIN32) + fd= my_win_open(FileName, Flags); +#elif !defined(NO_OPEN_3) + fd = open(FileName, Flags, my_umask); /* Normal unix */ +#else + fd = open((char *) FileName, Flags); +#endif + + DBUG_RETURN(my_register_filename(fd, FileName, FILE_BY_OPEN, + EE_FILENOTFOUND, MyFlags)); +} /* my_open */ + + +/* + Close a file + + SYNOPSIS + my_close() + fd File sescriptor + myf Special Flags + +*/ + +int my_close(File fd, myf MyFlags) +{ + int err; + DBUG_ENTER("my_close"); + DBUG_PRINT("my",("fd: %d MyFlags: %d",fd, MyFlags)); + + mysql_mutex_lock(&THR_LOCK_open); +#ifndef _WIN32 + do + { + err= close(fd); + } while (err == -1 && errno == EINTR); +#else + err= my_win_close(fd); +#endif + if (err) + { + DBUG_PRINT("error",("Got error %d on close",err)); + my_errno=errno; + if (MyFlags & (MY_FAE | MY_WME)) + my_error(EE_BADCLOSE, MYF(ME_BELL+ME_WAITTANG),my_filename(fd),errno); + } + if ((uint) fd < my_file_limit && my_file_info[fd].type != UNOPEN) + { + my_free(my_file_info[fd].name); +#if !defined(HAVE_PREAD) && !defined(_WIN32) + mysql_mutex_destroy(&my_file_info[fd].mutex); +#endif + my_file_info[fd].type = UNOPEN; + } + my_file_opened--; + mysql_mutex_unlock(&THR_LOCK_open); + DBUG_RETURN(err); +} /* my_close */ + + +/* + Register file in my_file_info[] + + SYNOPSIS + my_register_filename() + fd File number opened, -1 if error on open + FileName File name + type_file_type How file was created + error_message_number Error message number if caller got error (fd == -1) + MyFlags Flags for my_close() + + RETURN + -1 error + # Filenumber + +*/ + +File my_register_filename(File fd, const char *FileName, enum file_type + type_of_file, uint error_message_number, myf MyFlags) +{ + DBUG_ENTER("my_register_filename"); + if ((int) fd >= MY_FILE_MIN) + { + if ((uint) fd >= my_file_limit) + { +#if !defined(HAVE_PREAD) + my_errno= EMFILE; +#else + thread_safe_increment(my_file_opened,&THR_LOCK_open); + DBUG_RETURN(fd); /* safeguard */ +#endif + } + else + { + mysql_mutex_lock(&THR_LOCK_open); + if ((my_file_info[fd].name = (char*) my_strdup(FileName,MyFlags))) + { + my_file_opened++; + my_file_total_opened++; + my_file_info[fd].type = type_of_file; +#if !defined(HAVE_PREAD) && !defined(_WIN32) + mysql_mutex_init(key_my_file_info_mutex, &my_file_info[fd].mutex, + MY_MUTEX_INIT_FAST); +#endif + mysql_mutex_unlock(&THR_LOCK_open); + DBUG_PRINT("exit",("fd: %d",fd)); + DBUG_RETURN(fd); + } + mysql_mutex_unlock(&THR_LOCK_open); + my_errno= ENOMEM; + } + (void) my_close(fd, MyFlags); + } + else + my_errno= errno; + + DBUG_PRINT("error",("Got error %d on open", my_errno)); + if (MyFlags & (MY_FFNF | MY_FAE | MY_WME)) + { + if (my_errno == EMFILE) + error_message_number= EE_OUT_OF_FILERESOURCES; + DBUG_PRINT("error",("print err: %d",error_message_number)); + my_error(error_message_number, MYF(ME_BELL+ME_WAITTANG), + FileName, my_errno); + } + DBUG_RETURN(-1); +} + + + + +#ifdef EXTRA_DEBUG + +void my_print_open_files(void) +{ + if (my_file_opened | my_stream_opened) + { + uint i; + for (i= 0 ; i < my_file_limit ; i++) + { + if (my_file_info[i].type != UNOPEN) + { + fprintf(stderr, EE(EE_FILE_NOT_CLOSED), my_file_info[i].name, i); + fputc('\n', stderr); + } + } + } +} + +#endif |