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Add the draft of an API to collect statistics on LXC
author Louis Opter <kalessin@kalessin.fr>
date Wed, 29 Dec 2010 23:28:14 +0100
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children 2cb8a6cbe468
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1 #ifndef _LXC_STATS_PRIV_H_
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2 # define _LXC_STATS_PRIV_H_
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3
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4 # include "compat/compat.h"
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5 # include "probes/probes.h"
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6
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7 struct dirent;
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8
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9 /**
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10 * Store all informations needed to get statistics from a cgroup
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11 * hierarchy.
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12 */
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13 struct _lxcst_controller {
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14 char *cgroup_dir; /**< Mount point of the cgroup hierarchy. */
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15 };
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16
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17 /**
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18 * Allocate a new lxcst structure for the given container.
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19 */
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20 struct lxcst *_lxcst_container_new(struct _lxcst_controller *, const char *);
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21
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22 /**
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23 * Free a lxcst structure.
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24 */
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25 void _lxcst_container_delete(struct lxcst *);
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26
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27 /**
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28 * Get statistics on a container.
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29 */
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30 int _lxcst_container_read_infos(struct lxcst *);
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31
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32 char *_lxcst_join_path(char *, size_t , const char *, const char *);
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33
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34 /**
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35 * Used to select only directories with scandir. We can't directly use it with
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36 * scandir because we need the cgroup_dir.
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37 *
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38 * @return true if the given directory entry is a directory.
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39 */
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40 int _lxcst_isdir(const struct _lxcst_controller *, const struct dirent *);
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41
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42 /**
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43 * Allocate a buffer and read an entire file in it.
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44 *
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45 * @param [in] path Path to the file to read
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46 * @param [out] content A pointer to a pointer which will hold the allocated
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47 * buffer.
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48 *
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49 * @return The size of the buffer on sucess, -1 with errno set otherwise.
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50 */
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51 ssize_t _lxcst_read_file(const char *path, char **content);
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52
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53 #endif