.gitignore: ignore local vscode workspace settings file

[lttng-tools.git] / src / common / utils.c

diff --git a/src/common/utils.c b/src/common/utils.c
deleted file mode 100644 (file)
index bc9b2db..0000000
--- a/src/common/utils.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
- *
- * 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, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define _GNU_SOURCE
-#include <ctype.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <common/common.h>
-
-#include "utils.h"
-
-/*
- * Return the realpath(3) of the path even if the last directory token does not
- * exist. For example, with /tmp/test1/test2, if test2/ does not exist but the
- * /tmp/test1 does, the real path is returned. In normal time, realpath(3)
- * fails if the end point directory does not exist.
- */
-char *utils_expand_path(const char *path)
-{
-       const char *end_path = path;
-       char *next, *cut_path = NULL, *expanded_path = NULL;
-
-       /* Safety net */
-       if (path == NULL) {
-               goto error;
-       }
-
-       /* Find last token delimited by '/' */
-       while ((next = strpbrk(end_path + 1, "/"))) {
-               end_path = next;
-       }
-
-       /* Cut last token from original path */
-       cut_path = strndup(path, end_path - path);
-
-       expanded_path = zmalloc(PATH_MAX);
-       if (expanded_path == NULL) {
-               PERROR("zmalloc expand path");
-               goto error;
-       }
-
-       expanded_path = realpath((char *)cut_path, expanded_path);
-       if (expanded_path == NULL) {
-               switch (errno) {
-               case ENOENT:
-                       ERR("%s: No such file or directory", cut_path);
-                       break;
-               default:
-                       PERROR("realpath utils expand path");
-                       break;
-               }
-               goto error;
-       }
-
-       /* Add end part to expanded path */
-       strncat(expanded_path, end_path, PATH_MAX);
-
-       free(cut_path);
-       return expanded_path;
-
-error:
-       free(expanded_path);
-       free(cut_path);
-       return NULL;
-}
-
-/*
- * Create a pipe in dst.
- */
-int utils_create_pipe(int *dst)
-{
-       int ret;
-
-       if (dst == NULL) {
-               return -1;
-       }
-
-       ret = pipe(dst);
-       if (ret < 0) {
-               PERROR("create pipe");
-       }
-
-       return ret;
-}
-
-/*
- * Create pipe and set CLOEXEC flag to both fd.
- *
- * Make sure the pipe opened by this function are closed at some point. Use
- * utils_close_pipe().
- */
-int utils_create_pipe_cloexec(int *dst)
-{
-       int ret, i;
-
-       if (dst == NULL) {
-               return -1;
-       }
-
-       ret = utils_create_pipe(dst);
-       if (ret < 0) {
-               goto error;
-       }
-
-       for (i = 0; i < 2; i++) {
-               ret = fcntl(dst[i], F_SETFD, FD_CLOEXEC);
-               if (ret < 0) {
-                       PERROR("fcntl pipe cloexec");
-                       goto error;
-               }
-       }
-
-error:
-       return ret;
-}
-
-/*
- * Close both read and write side of the pipe.
- */
-void utils_close_pipe(int *src)
-{
-       int i, ret;
-
-       if (src == NULL) {
-               return;
-       }
-
-       for (i = 0; i < 2; i++) {
-               /* Safety check */
-               if (src[i] < 0) {
-                       continue;
-               }
-
-               ret = close(src[i]);
-               if (ret) {
-                       PERROR("close pipe");
-               }
-       }
-}