diff options
Diffstat (limited to 'libudev')
| -rw-r--r-- | libudev/libudev-queue-private.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/libudev/libudev-queue-private.c b/libudev/libudev-queue-private.c index a799be062a..0dcf9b0020 100644 --- a/libudev/libudev-queue-private.c +++ b/libudev/libudev-queue-private.c @@ -164,7 +164,7 @@ static struct queue_devpaths *build_index(struct udev_queue_export *udev_queue_e devpaths->devpaths_size = range + 1; /* read all records and populate the table */ - while(1) { + for (;;) { if (udev_queue_read_seqnum(udev_queue_export->queue_file, &seqnum) < 0) break; n = seqnum - udev_queue_export->seqnum_max; @@ -303,8 +303,10 @@ static int write_queue_record(struct udev_queue_export *udev_queue_export, len = (devpath_len < USHRT_MAX) ? devpath_len : USHRT_MAX; if (fwrite(&len, sizeof(unsigned short), 1, udev_queue_export->queue_file) != 1) goto write_error; - if (fwrite(devpath, 1, len, udev_queue_export->queue_file) != len) - goto write_error; + if (len > 0) { + if (fwrite(devpath, 1, len, udev_queue_export->queue_file) != len) + goto write_error; + } /* *must* flush output; caller may fork */ if (fflush(udev_queue_export->queue_file) != 0) @@ -342,6 +344,7 @@ static int update_queue(struct udev_queue_export *udev_queue_export, int bytes; int err; + /* FINISHED records have a zero length devpath */ if (state == DEVICE_QUEUED) { devpath = udev_device_get_devpath(udev_device); devpath_len = strlen(devpath); @@ -353,12 +356,9 @@ static int update_queue(struct udev_queue_export *udev_queue_export, return -1; } - /* when the queue file grows too large, garbage-collect and rebuild it */ - bytes = ftell(udev_queue_export->queue_file) + queue_record_size(devpath_len); - /* if we're removing the last event from the queue, that's the best time to rebuild it */ - if (state != DEVICE_QUEUED && udev_queue_export->queued_count == 1 && bytes > 2048) { - /* because we don't need to read the old queue file */ + if (state != DEVICE_QUEUED && udev_queue_export->queued_count == 1) { + /* we don't need to read the old queue file */ fclose(udev_queue_export->queue_file); udev_queue_export->queue_file = NULL; rebuild_queue_file(udev_queue_export); @@ -366,6 +366,7 @@ static int update_queue(struct udev_queue_export *udev_queue_export, } /* try to rebuild the queue files before they grow larger than one page. */ + bytes = ftell(udev_queue_export->queue_file) + queue_record_size(devpath_len); if ((udev_queue_export->waste_bytes > bytes / 2) && bytes > 4096) rebuild_queue_file(udev_queue_export); |