add cache types for each procfile type that we provide

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

diff --git a/lxcfs.c b/lxcfs.c
index f50bba38963b6eaad7a5d44fcc0eba3df3466c3d..162f356445176cc3ab238aefaac91b6d1c50fcdd 100644 (file)
--- a/lxcfs.c
+++ b/lxcfs.c
@@ -44,11 +44,21 @@ struct lxcfs_state {
 };
 #define LXCFS_DATA ((struct lxcfs_state *) fuse_get_context()->private_data)
 
+enum {
+       LXC_TYPE_CGDIR,
+       LXC_TYPE_CGFILE,
+       LXC_TYPE_PROC_MEMINFO,
+       LXC_TYPE_PROC_CPUINFO,
+       LXC_TYPE_PROC_UPTIME,
+       LXC_TYPE_PROC_STAT,
+       LXC_TYPE_PROC_DISKSTATS,
+};
+
 struct file_info {
        char *controller;
        char *cgroup;
        char *file;
-       bool isdir;
+       int type;
        char *buf;  // unused as of yet
        int buflen;
 };
@@ -576,7 +586,7 @@ static int cg_opendir(const char *path, struct fuse_file_info *fi)
        dir_info = NIH_MUST( nih_alloc(NULL, sizeof(*dir_info)) );
        dir_info->controller = must_copy_string(controller);
        dir_info->cgroup = must_copy_string(cgroup);
-       dir_info->isdir = true;
+       dir_info->type = LXC_TYPE_CGDIR;
        dir_info->buf = NULL;
        dir_info->file = NULL;
        dir_info->buflen = 0;
@@ -594,7 +604,7 @@ static int cg_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t
        nih_local char *nextcg = NULL;
        struct fuse_context *fc = fuse_get_context();
 
-       if (!d->isdir) {
+       if (d->type != LXC_TYPE_CGDIR) {
                fprintf(stderr, "Internal error: file cache info used in readdir\n");
                return -EIO;
        }
@@ -709,7 +719,7 @@ static int cg_open(const char *path, struct fuse_file_info *fi)
        file_info->controller = must_copy_string(controller);
        file_info->cgroup = must_copy_string(path1);
        file_info->file = must_copy_string(path2);
-       file_info->isdir = false;
+       file_info->type = LXC_TYPE_CGFILE;
        file_info->buf = NULL;
        file_info->buflen = 0;
 
@@ -1042,7 +1052,7 @@ static int cg_read(const char *path, char *buf, size_t size, off_t offset,
        struct file_info *f = (struct file_info *)fi->fh;
        nih_local struct cgm_keys *k = NULL;
 
-       if (f->isdir) {
+       if (f->type != LXC_TYPE_CGFILE) {
                fprintf(stderr, "Internal error: directory cache info used in cg_read\n");
                return -EIO;
        }
@@ -1264,7 +1274,7 @@ int cg_write(const char *path, const char *buf, size_t size, off_t offset,
        nih_local struct cgm_keys *k = NULL;
        struct file_info *f = (struct file_info *)fi->fh;
 
-       if (f->isdir) {
+       if (f->type != LXC_TYPE_CGFILE) {
                fprintf(stderr, "Internal error: directory cache info used in cg_write\n");
                return -EIO;
        }