diff options
Diffstat (limited to 'lockfile.h')
| -rw-r--r-- | lockfile.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lockfile.h b/lockfile.h index 3d301937b0..d26ad27b2b 100644 --- a/lockfile.h +++ b/lockfile.h @@ -55,6 +55,10 @@ * * calling `fdopen_lock_file()` to get a `FILE` pointer for the * open file and writing to the file using stdio. * + * Note that the file descriptor returned by hold_lock_file_for_update() + * is marked O_CLOEXEC, so the new contents must be written by the + * current process, not a spawned one. + * * When finished writing, the caller can: * * * Close the file descriptor and rename the lockfile to its final |