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Simplified config

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Before, the lfs had multiple paths to determine config options:
- lfs_config struct passed during initialization
- lfs_bd_info struct passed during block device initialization
- compile time options

This allowed different developers to provide their own needs
to the filesystem, such as the block device capabilities and
the higher level user's own tweaks.

However, this comes with additional complexity and action required
when the configurations are incompatible.

For now, this has been reduced to all information (including block
device function pointers) being passed through the lfs_config struct.
We just defer more complicated handling of configuration options to
the top level user.

This simplifies configuration handling and gives the top level user
the responsibility to handle configuration, which they probably would
have wanted to do anyways.
This commit is contained in:
Christopher Haster
2017-04-22 11:42:05 -05:00
parent 3b9d6630c8
commit 789286a257
13 changed files with 254 additions and 416 deletions
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12
tests/test_alloc.sh
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@@ -4,14 +4,14 @@ set -eu
echo "=== Allocator tests ==="
rm -rf blocks
tests/test.py << TEST
lfs_format(&lfs, &config) => 0;
lfs_format(&lfs, &cfg) => 0;
TEST
SIZE=15000
lfs_mkdir() {
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_mount(&lfs, &cfg) => 0;
lfs_mkdir(&lfs, "$1") => 0;
lfs_unmount(&lfs) => 0;
TEST
@@ -19,7 +19,7 @@ TEST
lfs_remove() {
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_mount(&lfs, &cfg) => 0;
lfs_remove(&lfs, "$1/eggs") => 0;
lfs_remove(&lfs, "$1/bacon") => 0;
lfs_remove(&lfs, "$1/pancakes") => 0;
@@ -31,7 +31,7 @@ TEST
lfs_alloc_singleproc() {
tests/test.py << TEST
const char *names[] = {"bacon", "eggs", "pancakes"};
lfs_mount(&lfs, &config) => 0;
lfs_mount(&lfs, &cfg) => 0;
for (int n = 0; n < sizeof(names)/sizeof(names[0]); n++) {
sprintf((char*)buffer, "$1/%s", names[n]);
lfs_file_open(&lfs, &file[n], (char*)buffer,
@@ -54,7 +54,7 @@ lfs_alloc_multiproc() {
for name in bacon eggs pancakes
do
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_mount(&lfs, &cfg) => 0;
lfs_file_open(&lfs, &file[0], "$1/$name",
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_APPEND) => 0;
size = strlen("$name");
@@ -72,7 +72,7 @@ lfs_verify() {
for name in bacon eggs pancakes
do
tests/test.py << TEST
lfs_mount(&lfs, &config) => 0;
lfs_mount(&lfs, &cfg) => 0;
lfs_file_open(&lfs, &file[0], "$1/$name", LFS_O_RDONLY) => 0;
size = strlen("$name");
for (int i = 0; i < $SIZE; i++) {