Changes in uspace/srv/fs/fat/fat_ops.c [44ecf89:2463df9] in mainline

File:

• uspace/srv/fs/fat/fat_ops.c (modified) (6 diffs)

uspace/srv/fs/fat/fat_ops.c

@@ -55 +55 @@
 #include <assert.h>
 #include <fibril_synch.h>
-#include <sys/mman.h>
 #include <align.h>
 #include <malloc.h>
@@ -91 +90 @@
 static bool fat_is_file(fs_node_t *node);
 static service_id_t fat_service_get(fs_node_t *node);
+static int fat_size_block(service_id_t, uint32_t *);
+static int fat_total_block_count(service_id_t, uint64_t *);
+static int fat_free_block_count(service_id_t, uint64_t *);
 
 /*
@@ -149 +151 @@
 static int fat_node_fini_by_service_id(service_id_t service_id)
 {
-        fat_node_t *nodep;
         int rc;
 
@@ -160 +161 @@
 restart:
         fibril_mutex_lock(&ffn_mutex);
-        list_foreach(ffn_list, lnk) {
-                nodep = list_get_instance(lnk, fat_node_t, ffn_link);
+        list_foreach(ffn_list, ffn_link, fat_node_t, nodep) {
                 if (!fibril_mutex_trylock(&nodep->lock)) {
                         fibril_mutex_unlock(&ffn_mutex);
@@ -843 +843 @@
 }
 
+int fat_size_block(service_id_t service_id, uint32_t *size)
+{
+        fat_bs_t *bs;
+
+        bs = block_bb_get(service_id);
+        *size = BPC(bs);
+
+        return EOK;
+}
+
+int fat_total_block_count(service_id_t service_id, uint64_t *count)
+{
+        fat_bs_t *bs;
+        
+        bs = block_bb_get(service_id);
+        *count = (SPC(bs)) ? TS(bs) / SPC(bs) : 0;
+
+        return EOK;
+}
+
+int fat_free_block_count(service_id_t service_id, uint64_t *count)
+{
+        fat_bs_t *bs;
+        fat_cluster_t e0;
+        uint64_t block_count;
+        int rc;
+        uint32_t cluster_no, clusters;
+
+        block_count = 0;
+        bs = block_bb_get(service_id);
+        clusters = (SPC(bs)) ? TS(bs) / SPC(bs) : 0;
+        for (cluster_no = 0; cluster_no < clusters; cluster_no++) {
+                rc = fat_get_cluster(bs, service_id, FAT1, cluster_no, &e0);
+                if (rc != EOK)
+                        return EIO;
+
+                if (e0 == FAT_CLST_RES0)
+                        block_count++;
+        }
+        *count = block_count;
+        
+        return EOK;
+}
+
 /** libfs operations */
 libfs_ops_t fat_libfs_ops = {
@@ -860 +904 @@
         .is_directory = fat_is_directory,
         .is_file = fat_is_file,
-        .service_get = fat_service_get
+        .service_get = fat_service_get,
+        .size_block = fat_size_block,
+        .total_block_count = fat_total_block_count,
+        .free_block_count = fat_free_block_count
 };