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127 lines
5.2 KiB
C++
127 lines
5.2 KiB
C++
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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/*======
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This file is part of PerconaFT.
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License, version 3,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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#pragma once
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#include <dirent.h>
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#include <sys/time.h>
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#include "toku_stdint.h"
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#include "toku_os_types.h"
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// Returns: the current process id
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int toku_os_getpid(void) __attribute__((__visibility__("default")));
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// Returns: the current thread id
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int toku_os_gettid(void) __attribute__((__visibility__("default")));
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// Returns: the number of processors in the system
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int toku_os_get_number_processors(void);
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// Returns: the number of active processors in the system
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int toku_os_get_number_active_processors(void);
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// Returns: the system page size (in bytes)
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int toku_os_get_pagesize(void);
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// Returns: the size of physical memory (in bytes)
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uint64_t toku_os_get_phys_memory_size(void) __attribute__((__visibility__("default")));
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// Returns the processor frequency in Hz
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// Returns 0 if success
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int toku_os_get_processor_frequency(uint64_t *hz);
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// Returns: 0 on success
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// sets fsize to the number of bytes in a file
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int toku_os_get_file_size(int fildes, int64_t *fsize) __attribute__((__visibility__("default")));
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// Returns: 0 on success
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// Initializes id as a unique fileid for fildes on success.
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int toku_os_get_unique_file_id(int fildes, struct fileid *id);
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//Locks a file (should not be open to begin with).
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//Returns: file descriptor (or -1 on error)
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int toku_os_lock_file(const char *name);
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//Unlocks and closes a file locked by toku_os_lock_on_file
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int toku_os_unlock_file(int fildes);
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int toku_os_mkdir(const char *pathname, mode_t mode) __attribute__((__visibility__("default")));
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// Get the current process user and kernel use times
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int toku_os_get_process_times(struct timeval *usertime, struct timeval *kerneltime);
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// Get the maximum size of the process data size (in bytes)
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// Success: returns 0 and sets *maxdata to the data size
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// Fail: returns an error number
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int toku_os_get_max_process_data_size(uint64_t *maxdata) __attribute__((__visibility__("default")));
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int toku_os_initialize_settings(int verbosity) __attribute__((__visibility__("default")));
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bool toku_os_is_absolute_name(const char* path) __attribute__((__visibility__("default")));
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// Return true if huge pages are enabled. See portability/huge_page_detection.cc for methodology.
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bool toku_os_huge_pages_enabled(void) __attribute__((__visibility__("default")));
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// Set whether or not writes assert when ENOSPC is returned or they wait for space
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void toku_set_assert_on_write_enospc(int do_assert) __attribute__((__visibility__("default")));
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// Get file system write information
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// *enospc_last_time is the last time ENOSPC was returned by write or pwrite
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// *enospc_current is the number of threads waiting on space
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// *enospc_total is the number of times ENOSPC was returned by write or pwrite
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void toku_fs_get_write_info(time_t *enospc_last_time, uint64_t *enospc_current, uint64_t *enospc_total);
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void toku_fsync_dirfd_without_accounting(DIR *dirp);
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int toku_fsync_dir_by_name_without_accounting(const char *dir_name);
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// Get the file system free and total space for the file system that contains a path name
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// *avail_size is set to the bytes of free space in the file system available for non-root
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// *free_size is set to the bytes of free space in the file system
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// *total_size is set to the total bytes in the file system
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// Return 0 on success, otherwise an error number
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int toku_get_filesystem_sizes(const char *path, uint64_t *avail_size, uint64_t *free_size, uint64_t *total_size);
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// Portable linux 'stat'
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int toku_stat(const char *name, toku_struct_stat *statbuf) __attribute__((__visibility__("default")));
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// Portable linux 'fstat'
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int toku_fstat(int fd, toku_struct_stat *statbuf) __attribute__((__visibility__("default")));
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// Portable linux 'dup2'
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int toku_dup2(int fd, int fd2) __attribute__((__visibility__("default")));
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