dcbfbe3c80
The define was a leftover from IVSHMEM library.
Fixes: c711ccb309 ("ivshmem: remove library and its EAL integration")
Cc: stable@dpdk.org
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: David Marchand <david.marchand@6wind.com>
141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2018 Intel Corporation
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*/
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/**
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* @file
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* Stores functions and path defines for files and directories
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* on the filesystem for Linux, that are used by the Linux EAL.
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*/
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#ifndef EAL_FILESYSTEM_H
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#define EAL_FILESYSTEM_H
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/** Path of rte config file. */
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#define RUNTIME_CONFIG_FMT "%s/.%s_config"
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#define FBARRAY_FMT "%s/.%s_%s"
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#include <stdint.h>
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#include <limits.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <rte_string_fns.h>
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#include "eal_internal_cfg.h"
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static const char *default_config_dir = "/var/run";
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static inline const char *
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eal_runtime_config_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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const char *directory = default_config_dir;
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const char *home_dir = getenv("HOME");
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if (getuid() != 0 && home_dir != NULL)
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directory = home_dir;
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snprintf(buffer, sizeof(buffer) - 1, RUNTIME_CONFIG_FMT, directory,
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internal_config.hugefile_prefix);
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return buffer;
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}
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/** Path of primary/secondary communication unix socket file. */
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#define MP_SOCKET_PATH_FMT "%s/.%s_unix"
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static inline const char *
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eal_mp_socket_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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const char *directory = default_config_dir;
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const char *home_dir = getenv("HOME");
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if (getuid() != 0 && home_dir != NULL)
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directory = home_dir;
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snprintf(buffer, sizeof(buffer) - 1, MP_SOCKET_PATH_FMT,
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directory, internal_config.hugefile_prefix);
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return buffer;
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}
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static inline const char *
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eal_get_fbarray_path(char *buffer, size_t buflen, const char *name) {
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const char *directory = "/tmp";
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const char *home_dir = getenv("HOME");
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if (getuid() != 0 && home_dir != NULL)
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directory = home_dir;
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snprintf(buffer, buflen - 1, FBARRAY_FMT, directory,
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internal_config.hugefile_prefix, name);
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return buffer;
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}
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/** Path of hugepage info file. */
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#define HUGEPAGE_INFO_FMT "%s/.%s_hugepage_info"
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static inline const char *
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eal_hugepage_info_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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const char *directory = default_config_dir;
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const char *home_dir = getenv("HOME");
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if (getuid() != 0 && home_dir != NULL)
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directory = home_dir;
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snprintf(buffer, sizeof(buffer) - 1, HUGEPAGE_INFO_FMT, directory,
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internal_config.hugefile_prefix);
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return buffer;
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}
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/** Path of hugepage info file. */
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#define HUGEPAGE_FILE_FMT "%s/.%s_hugepage_file"
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static inline const char *
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eal_hugepage_file_path(void)
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{
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static char buffer[PATH_MAX]; /* static so auto-zeroed */
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const char *directory = default_config_dir;
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const char *home_dir = getenv("HOME");
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if (getuid() != 0 && home_dir != NULL)
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directory = home_dir;
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snprintf(buffer, sizeof(buffer) - 1, HUGEPAGE_FILE_FMT, directory,
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internal_config.hugefile_prefix);
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return buffer;
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}
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/** String format for hugepage map files. */
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#define HUGEFILE_FMT "%s/%smap_%d"
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static inline const char *
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eal_get_hugefile_path(char *buffer, size_t buflen, const char *hugedir, int f_id)
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{
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snprintf(buffer, buflen, HUGEFILE_FMT, hugedir,
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internal_config.hugefile_prefix, f_id);
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buffer[buflen - 1] = '\0';
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return buffer;
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}
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/** String format for hugepage map lock files. */
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#define HUGEFILE_LOCK_FMT "%s/.%smap_%d.lock"
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static inline const char *
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eal_get_hugefile_lock_path(char *buffer, size_t buflen, int f_id)
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{
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const char *directory = default_config_dir;
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const char *home_dir = getenv("HOME");
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if (getuid() != 0 && home_dir != NULL)
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directory = home_dir;
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snprintf(buffer, buflen - 1, HUGEFILE_LOCK_FMT, directory,
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internal_config.hugefile_prefix, f_id);
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buffer[buflen - 1] = '\0';
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return buffer;
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}
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/** define the default filename prefix for the %s values above */
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#define HUGEFILE_PREFIX_DEFAULT "rte"
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/** Function to read a single numeric value from a file on the filesystem.
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* Used to read information from files on /sys */
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int eal_parse_sysfs_value(const char *filename, unsigned long *val);
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#endif /* EAL_FILESYSTEM_H */
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