1 files changed, 118 insertions, 0 deletions
diff --git a/src/dpdk_lib18/librte_eal/common/eal_filesystem.h b/src/dpdk_lib18/librte_eal/common/eal_filesystem.h
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+++ b/src/dpdk_lib18/librte_eal/common/eal_filesystem.h
@@ -0,0 +1,118 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file
+ * Stores functions and path defines for files and directories
+ * on the filesystem for Linux, that are used by the Linux EAL.
+ */
+
+#ifndef EAL_FILESYSTEM_H
+#define EAL_FILESYSTEM_H
+
+/** Path of rte config file. */
+#define RUNTIME_CONFIG_FMT "%s/.%s_config"
+
+#include <stdint.h>
+#include <limits.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <rte_string_fns.h>
+#include "eal_internal_cfg.h"
+
+static const char *default_config_dir = "/var/run";
+
+static inline const char *
+eal_runtime_config_path(void)
+{
+	static char buffer[PATH_MAX]; /* static so auto-zeroed */
+	const char *directory = default_config_dir;
+	const char *home_dir = getenv("HOME");
+
+	if (getuid() != 0 && home_dir != NULL)
+		directory = home_dir;
+	snprintf(buffer, sizeof(buffer) - 1, RUNTIME_CONFIG_FMT, directory,
+			internal_config.hugefile_prefix);
+	return buffer;
+}
+
+/** Path of hugepage info file. */
+#define HUGEPAGE_INFO_FMT "%s/.%s_hugepage_info"
+
+static inline const char *
+eal_hugepage_info_path(void)
+{
+	static char buffer[PATH_MAX]; /* static so auto-zeroed */
+	const char *directory = default_config_dir;
+	const char *home_dir = getenv("HOME");
+
+	if (getuid() != 0 && home_dir != NULL)
+		directory = home_dir;
+	snprintf(buffer, sizeof(buffer) - 1, HUGEPAGE_INFO_FMT, directory,
+			internal_config.hugefile_prefix);
+	return buffer;
+}
+
+/** String format for hugepage map files. */
+#define HUGEFILE_FMT "%s/%smap_%d"
+#define TEMP_HUGEFILE_FMT "%s/%smap_temp_%d"
+
+static inline const char *
+eal_get_hugefile_path(char *buffer, size_t buflen, const char *hugedir, int f_id)
+{
+	snprintf(buffer, buflen, HUGEFILE_FMT, hugedir,
+			internal_config.hugefile_prefix, f_id);
+	buffer[buflen - 1] = '\0';
+	return buffer;
+}
+
+#ifdef RTE_EAL_SINGLE_FILE_SEGMENTS
+static inline const char *
+eal_get_hugefile_temp_path(char *buffer, size_t buflen, const char *hugedir, int f_id)
+{
+	snprintf(buffer, buflen, TEMP_HUGEFILE_FMT, hugedir,
+			internal_config.hugefile_prefix, f_id);
+	buffer[buflen - 1] = '\0';
+	return buffer;
+}
+#endif
+
+/** define the default filename prefix for the %s values above */
+#define HUGEFILE_PREFIX_DEFAULT "rte"
+
+/** Function to read a single numeric value from a file on the filesystem.
+ * Used to read information from files on /sys */
+int eal_parse_sysfs_value(const char *filename, unsigned long *val);
+
+#endif /* EAL_FILESYSTEM_H */