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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-09-25 13:21:07 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-09-25 13:32:42 +0200
commite0e98b7b747f63c1b8fccd035592e3684fdb2691 (patch)
tree31e75a68d40f6947cf09e06928df8f4f013d5a89 /lib/sqfs/data_writer/fragment.c
parentf64986ac1d95ffb2604cfef0efa8e7d2e0b7f8ce (diff)
Add the ability to hook into the data writer block writing
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/sqfs/data_writer/fragment.c')
-rw-r--r--lib/sqfs/data_writer/fragment.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/lib/sqfs/data_writer/fragment.c b/lib/sqfs/data_writer/fragment.c
index e4fe9b4..9f169b7 100644
--- a/lib/sqfs/data_writer/fragment.c
+++ b/lib/sqfs/data_writer/fragment.c
@@ -64,6 +64,10 @@ static int store_fragment(sqfs_data_writer_t *proc, sqfs_block_t *frag,
sqfs_inode_set_frag_location(frag->inode, proc->frag_block->index,
proc->frag_block->size);
+ if (proc->hooks != NULL && proc->hooks->pre_fragment_store != NULL) {
+ proc->hooks->pre_fragment_store(proc->user_ptr, frag);
+ }
+
memcpy(proc->frag_block->data + proc->frag_block->size,
frag->data, frag->size);
@@ -82,12 +86,8 @@ int process_completed_fragment(sqfs_data_writer_t *proc, sqfs_block_t *frag,
hash = MK_BLK_HASH(frag->checksum, frag->size);
for (i = 0; i < proc->frag_list_num; ++i) {
- if (proc->frag_list[i].hash == hash) {
- sqfs_inode_set_frag_location(frag->inode,
- proc->frag_list[i].index,
- proc->frag_list[i].offset);
- return 0;
- }
+ if (proc->frag_list[i].hash == hash)
+ goto out_duplicate;
}
if (proc->frag_block != NULL) {
@@ -125,4 +125,13 @@ fail:
free(*blk_out);
*blk_out = NULL;
return err;
+out_duplicate:
+ sqfs_inode_set_frag_location(frag->inode, proc->frag_list[i].index,
+ proc->frag_list[i].offset);
+
+ if (proc->hooks != NULL &&
+ proc->hooks->notify_fragment_discard != NULL) {
+ proc->hooks->notify_fragment_discard(proc->user_ptr, frag);
+ }
+ return 0;
}