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new: Update comments for add_files_recursive

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The most recent commit optimized the implementation of this
function. This commit simply updates the relevant comments to match
the new implementation.
This commit is contained in:
Carl Worth 2011-03-10 11:56:16 -08:00
parent b0006b6ea2
commit 61d4d89572
1 changed files with 13 additions and 5 deletions
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18
notmuch-new.c
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@ -182,15 +182,20 @@ _entries_resemble_maildir (struct dirent **entries, int count)
*
* o Ask the filesystem for files and directories within 'path'
* (via scandir and stored in fs_entries)
* o Ask the database for files and directories within 'path'
* (db_files and db_subdirs)
*
* o Pass 1: For each directory in fs_entries, recursively call into
* this same function.
*
* o Pass 2: If 'fs_mtime' > 'db_mtime', then walk fs_entries
* simultaneously with db_files and db_subdirs. Look for one of
* three interesting cases:
* o Compare fs_mtime to db_mtime. If they are equivalent, terminate
* the algorithm at this point, (this directory has not been
* updated in the filesystem since the last database scan of PASS
* 2).
*
* o Ask the database for files and directories within 'path'
* (db_files and db_subdirs)
*
* o Pass 2: Walk fs_entries simultaneously with db_files and
* db_subdirs. Look for one of three interesting cases:
*
* 1. Regular file in fs_entries and not in db_files
* This is a new file to add_message into the database.
@ -320,6 +325,9 @@ add_files_recursive (notmuch_database_t *notmuch,
if (fs_mtime == db_mtime)
goto DONE;
/* new_directory means a directory that the database has never
* seen before. In that case, we can simply leave db_files and
* db_subdirs NULL. */
if (!new_directory) {
db_files = notmuch_directory_get_child_files (directory);
db_subdirs = notmuch_directory_get_child_directories (directory);