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Added path iteration and chained directories

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All path iteration all goes through the lfs_dir_find function,
which manages the syntax of paths and updates the path pointer
to just the name stored in the dir entry.

Also added directory chaining, which allows more than one block
per directory. This is a simple linked list.
This commit is contained in:
Christopher Haster
2017-04-01 10:09:17 -05:00
parent 390ca3303f
commit ca01b72a35
4 changed files with 270 additions and 63 deletions
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62
tests/test_dirs.sh
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@@ -1,6 +1,8 @@
#!/bin/bash
set -eu
LARGESIZE=128
echo "=== Directory tests ==="
rm -rf blocks
tests/test.py << TEST
@@ -62,5 +64,65 @@ tests/test.py << TEST
lfs_unmount(&lfs) => 0;
TEST
echo "--- Nested directories ---"
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_mkdir(&lfs, "potato/baked") => 0;
lfs_mkdir(&lfs, "potato/sweet") => 0;
lfs_mkdir(&lfs, "potato/fried") => 0;
lfs_unmount(&lfs) => 0;
TEST
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_dir_open(&lfs, &dir[0], "potato") => 0;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, ".") => 0;
info.type => LFS_TYPE_DIR;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, "..") => 0;
info.type => LFS_TYPE_DIR;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, "baked") => 0;
info.type => LFS_TYPE_DIR;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, "sweet") => 0;
info.type => LFS_TYPE_DIR;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, "fried") => 0;
info.type => LFS_TYPE_DIR;
lfs_dir_read(&lfs, &dir[0], &info) => 0;
lfs_dir_close(&lfs, &dir[0]) => 0;
lfs_unmount(&lfs) => 0;
TEST
echo "--- Multi-block directory ---"
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_mkdir(&lfs, "cactus") => 0;
for (int i = 0; i < $LARGESIZE; i++) {
sprintf((char*)buffer, "cactus/test%d", i);
lfs_mkdir(&lfs, (char*)buffer) => 0;
}
lfs_unmount(&lfs) => 0;
TEST
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_dir_open(&lfs, &dir[0], "cactus") => 0;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, ".") => 0;
info.type => LFS_TYPE_DIR;
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, "..") => 0;
info.type => LFS_TYPE_DIR;
for (int i = 0; i < $LARGESIZE; i++) {
sprintf((char*)buffer, "test%d", i);
lfs_dir_read(&lfs, &dir[0], &info) => 1;
strcmp(info.name, (char*)buffer) => 0;
info.type => LFS_TYPE_DIR;
}
lfs_dir_read(&lfs, &dir[0], &info) => 0;
lfs_unmount(&lfs) => 0;
TEST
echo "--- Results ---"
tests/stats.py