Changeset 6f50bb0 in mainline

Timestamp:

2011-03-23T10:46:10Z (13 years ago)

Author:

Martin Sucha <sucha14@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c7faade

Parents:

7ea69a6

Message:

ext2info: better display of allocated/unallocated data blocks for a given inode

File:

• uspace/app/ext2info/ext2info.c (modified) (3 diffs)

uspace/app/ext2info/ext2info.c

@@ -395 +395 @@
         uint16_t access;
         const char *type;
-        uint32_t block;
         uint32_t total_blocks;
-        int i;
-        bool all_blocks = false;
-        
+        uint32_t i;
+        uint32_t range_start;
+        uint32_t range_last;
+        uint32_t range_start_file;
+        uint32_t range_last_file;
+        uint32_t range_current;
+        uint32_t range_expected;
+        uint32_t block_size;
+        uint64_t file_blocks;
+        bool printed_range;
+        int rc;
+        
+        block_size = ext2_superblock_get_block_size(fs->superblock);
         mode = ext2_inode_get_mode(fs->superblock, inode);
         mode_type = mode & EXT2_INODE_MODE_TYPE_MASK;
@@ -408 +417 @@
         flags = ext2_inode_get_flags(inode);
         total_blocks = ext2_inode_get_reserved_blocks(fs->superblock, inode);
+        file_blocks = 0;
+        if (size > 0) {
+                file_blocks = ((size-1)/block_size)+1;
+        }
         
         type = "Unknown";
@@ -443 +456 @@
         printf("  Total allocated blocks: %u\n", total_blocks);
         printf("  Block list: ");
-        for (i = 0; i < 12; i++) {
-                block = ext2_inode_get_direct_block(inode, i);
-                if (block == 0) {
-                        all_blocks = true;
-                        break;
-                }
-                printf("%u ", block);
-        }
-        all_blocks = all_blocks || ext2_inode_get_indirect_block(inode, 0) == 0;
-        if (!all_blocks) {
-                printf(" and more...");
+        
+        range_start = 0;
+        range_current = 0;
+        range_last = 0;
+        
+        printed_range = false;
+        
+        for (i = 0; i <= file_blocks; i++) {
+                if (i < file_blocks) {
+                        rc = ext2_filesystem_get_inode_data_block_index(fs, inode, i, &range_current);
+                        if (rc != EOK) {
+                                printf("Error reading data block indexes\n");
+                                return;
+                        }
+                }
+                if (range_last == 0) {
+                        range_expected = 0;
+                }
+                else {
+                        range_expected = range_last + 1;
+                }
+                if (range_current != range_expected) {
+                        if (i > 0) {
+                                if (printed_range) {
+                                        printf(", ");
+                                }
+                                if (range_start == 0 && range_last == 0) {
+                                        if (range_start_file == range_last_file) {
+                                                printf("%u N/A", range_start_file);
+                                        }
+                                        else {
+                                                printf("[%u, %u] N/A", range_start_file,
+                                                    range_last_file);
+                                        }
+                                }
+                                else {
+                                        if (range_start_file == range_last_file) {
+                                                printf("%u -> %u", range_start_file, range_start);
+                                        }
+                                        else {
+                                                printf("[%u, %u] -> [%u, %u]", range_start_file,
+                                                    range_last_file, range_start, range_last);
+                                        }
+                                }
+                                printed_range = true;
+                        }
+                        range_start = range_current;
+                        range_start_file = i;
+                }
+                range_last = range_current;
+                range_last_file = i;
         }
         printf("\n");