diff options
Diffstat (limited to 'vlib/vlib/unix/util.c')
| -rw-r--r-- | vlib/vlib/unix/util.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/vlib/vlib/unix/util.c b/vlib/vlib/unix/util.c deleted file mode 100644 index edc3e591baf..00000000000 --- a/vlib/vlib/unix/util.c +++ /dev/null @@ -1,231 +0,0 @@ -/* - * Copyright (c) 2016 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/* - * pci.c: Linux user space PCI bus management. - * - * Copyright (c) 2008 Eliot Dresselhaus - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include <vlib/vlib.h> -#include <vlib/unix/unix.h> - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <dirent.h> - -clib_error_t * -foreach_directory_file (char *dir_name, - clib_error_t * (*f) (void *arg, u8 * path_name, - u8 * file_name), void *arg, - int scan_dirs) -{ - DIR *d; - struct dirent *e; - clib_error_t *error = 0; - u8 *s, *t; - - d = opendir (dir_name); - if (!d) - { - if (errno == ENOENT) - return 0; - return clib_error_return_unix (0, "open `%s'", dir_name); - } - - s = t = 0; - while (1) - { - e = readdir (d); - if (!e) - break; - if (scan_dirs) - { - if (e->d_type == DT_DIR - && (!strcmp (e->d_name, ".") || !strcmp (e->d_name, ".."))) - continue; - } - else - { - if (e->d_type == DT_DIR) - continue; - } - - s = format (s, "%s/%s", dir_name, e->d_name); - t = format (t, "%s", e->d_name); - error = f (arg, s, t); - _vec_len (s) = 0; - _vec_len (t) = 0; - - if (error) - break; - } - - vec_free (s); - closedir (d); - - return error; -} - -clib_error_t * -vlib_sysfs_write (char *file_name, char *fmt, ...) -{ - u8 *s; - int fd; - clib_error_t *error = 0; - - fd = open (file_name, O_WRONLY); - if (fd < 0) - return clib_error_return_unix (0, "open `%s'", file_name); - - va_list va; - va_start (va, fmt); - s = va_format (0, fmt, &va); - va_end (va); - - if (write (fd, s, vec_len (s)) < 0) - error = clib_error_return_unix (0, "write `%s'", file_name); - - vec_free (s); - close (fd); - return error; -} - -clib_error_t * -vlib_sysfs_read (char *file_name, char *fmt, ...) -{ - unformat_input_t input; - u8 *s = 0; - int fd; - ssize_t sz; - uword result; - - fd = open (file_name, O_RDONLY); - if (fd < 0) - return clib_error_return_unix (0, "open `%s'", file_name); - - vec_validate (s, 4095); - - sz = read (fd, s, vec_len (s)); - if (sz < 0) - { - close (fd); - vec_free (s); - return clib_error_return_unix (0, "read `%s'", file_name); - } - - _vec_len (s) = sz; - unformat_init_vector (&input, s); - - va_list va; - va_start (va, fmt); - result = va_unformat (&input, fmt, &va); - va_end (va); - - vec_free (s); - close (fd); - - if (result == 0) - return clib_error_return (0, "unformat error"); - - return 0; -} - -u8 * -vlib_sysfs_link_to_name (char *link) -{ - char *p, buffer[64]; - unformat_input_t in; - u8 *s = 0; - int r; - - r = readlink (link, buffer, sizeof (buffer) - 1); - - if (r < 0) - return 0; - - buffer[r] = 0; - p = strrchr (buffer, '/'); - - if (!p) - return 0; - - unformat_init_string (&in, p + 1, strlen (p + 1)); - if (unformat (&in, "%s", &s) != 1) - clib_unix_warning ("no string?"); - unformat_free (&in); - - return s; -} - -int -vlib_sysfs_get_free_hugepages (unsigned int numa_node, int page_size) -{ - struct stat sb; - u8 *p = 0; - int r = -1; - - p = format (p, "/sys/devices/system/node/node%u%c", numa_node, 0); - - if (stat ((char *) p, &sb) == 0) - { - if (S_ISDIR (sb.st_mode) == 0) - goto done; - } - else if (numa_node == 0) - { - vec_reset_length (p); - p = format (p, "/sys/kernel/mm%c", 0); - if (stat ((char *) p, &sb) < 0 || S_ISDIR (sb.st_mode) == 0) - goto done; - } - else - goto done; - - _vec_len (p) -= 1; - p = format (p, "/hugepages/hugepages-%ukB/free_hugepages%c", page_size, 0); - vlib_sysfs_read ((char *) p, "%d", &r); - -done: - vec_free (p); - return r; -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |