* `rollback_lock_file()`.
*
* * Close the file descriptor without removing or renaming the
- * lockfile by calling `close_lock_file()`, and later call
+ * lockfile by calling `close_lock_file_gently()`, and later call
* `commit_lock_file()`, `commit_lock_file_to()`,
* `rollback_lock_file()`, or `reopen_lock_file()`.
*
*
* If you need to close the file descriptor you obtained from a
* `hold_lock_file_for_*()` function yourself, do so by calling
- * `close_lock_file()`. See "tempfile.h" for more information.
+ * `close_lock_file_gently()`. See "tempfile.h" for more information.
*
*
* Under the covers, a lockfile is just a tempfile with a few helper
*
* Similarly, `commit_lock_file`, `commit_lock_file_to`, and
* `close_lock_file` return 0 on success. On failure they set `errno`
- * appropriately, do their best to roll back the lockfile, and return
- * -1.
+ * appropriately and return -1. The `commit` variants (but not `close`)
+ * do their best to delete the temporary file before returning.
*/
#include "tempfile.h"
/*
* Associate a stdio stream with the lockfile (which must still be
* open). Return `NULL` (*without* rolling back the lockfile) on
- * error. The stream is closed automatically when `close_lock_file()`
- * is called or when the file is committed or rolled back.
+ * error. The stream is closed automatically when
+ * `close_lock_file_gently()` is called or when the file is committed or
+ * rolled back.
*/
static inline FILE *fdopen_lock_file(struct lock_file *lk, const char *mode)
{
* lockfile over the file being locked. Return 0 upon success. On
* failure to `close(2)`, return a negative value and roll back the
* lock file. Usually `commit_lock_file()`, `commit_lock_file_to()`,
- * or `rollback_lock_file()` should eventually be called if
- * `close_lock_file()` succeeds.
+ * or `rollback_lock_file()` should eventually be called.
*/
-static inline int close_lock_file(struct lock_file *lk)
+static inline int close_lock_file_gently(struct lock_file *lk)
{
- return close_tempfile(&lk->tempfile);
+ return close_tempfile_gently(&lk->tempfile);
}
/*
- * Re-open a lockfile that has been closed using `close_lock_file()`
+ * Re-open a lockfile that has been closed using `close_lock_file_gently()`
* but not yet committed or rolled back. This can be used to implement
* a sequence of operations like the following:
*
* * Lock file.
*
- * * Write new contents to lockfile, then `close_lock_file()` to
+ * * Write new contents to lockfile, then `close_lock_file_gently()` to
* cause the contents to be written to disk.
*
* * Pass the name of the lockfile to another program to allow it (and