search for: free_region

...*/ -struct regions { - struct region *regions; - size_t nr_regions; -}; +/* Vector of struct region. */ +DEFINE_VECTOR_TYPE(regions, struct region); -extern void init_regions (struct regions *regions) +extern void init_regions (regions *regions) __attribute__((__nonnull__ (1))); -extern void free_regions (struct regions *regions) +extern void free_regions (regions *regions) __attribute__((__nonnull__ (1))); /* Return the number of regions. */ static inline size_t __attribute__((__nonnull__ (1))) -nr_regions (struct regions *regions) +nr_regions (struct regions *rs) { - return regions->...

...uct region); > > -extern void init_regions (struct regions *regions) > +extern void init_regions (regions *regions) > __attribute__((__nonnull__ (1))); This change makes sense (DEFINE_VECTOR_TYPE gives us a typedef, so you lose the explicit 'struct'). > -extern void free_regions (struct regions *regions) > +extern void free_regions (regions *regions) > __attribute__((__nonnull__ (1))); > > /* Return the number of regions. */ > static inline size_t __attribute__((__nonnull__ (1))) > -nr_regions (struct regions *regions) > +nr_regions (struct...

This was a rather longer trip around the houses than I anticipated! The basic purpose of the patch series is to set $nbdkit_stdio_safe to "0" or "1" in sh and eval plugin scripts. To do that, I ended up adding a nicer way to manipulate environ lists, and to do that, I ended up adding a whole generic vector implementation which is applicable in a lot of different places.

Should we use attribute((nonnull)) at all? There's a very interesting history of this in libvirt -- try looking at commit eefb881 plus the commits referencing eefb881 -- but it does seem to work for me using recent GCC and Clang. I only did a few functions because annotating them gets old quickly... Rich.

I am running Fedora 8 uname -r = 2.6.24.4-64.fc8 on my box with Wine 0.9.58. When I first installed it I noticed that my CPU usage jumped and stayed at 100% with wineserver taking > 85%. I killed the wineserver process and it dropped down, however it soon jumped back up when wineserver restarted itself. I then killed it again and all related processes and disabled it from starting as a damen

...5, 7) * 9; diff --git a/common/regions/regions.h b/common/regions/regions.h index ca9b3d5..4fcaf09 100644 --- a/common/regions/regions.h +++ b/common/regions/regions.h @@ -76,25 +76,30 @@ struct regions { size_t nr_regions; }; -extern void init_regions (struct regions *regions); -extern void free_regions (struct regions *regions); -extern const struct region *find_region (const struct regions *regions, uint64_t offset); -extern int append_region (struct regions *regions, struct region region); +extern void init_regions (struct regions *regions) + __attribute__((__nonnull__ (1))); +extern void fre...

v1 was here: https://www.redhat.com/archives/libguestfs/2019-January/msg00008.html In v2 I have provided two patches: The first patch extends attribute((nonnull)) to most internal functions, but not to the external API. The second patch uses a macro so that attribute((format)) is only used in the public API on GCC or Clang. At least in theory these headers could be used by a C compiler which

...struct random_state random_state; @@ -106,12 +109,17 @@ partitioning_unload (void) free (files); /* We don't need to free regions.regions[].u.data because it points - * to either primary or secondary which we free here. + * to primary, secondary or ebr which we free here. */ free_regions (&regions); free (primary); free (secondary); + if (ebr) { + for (i = 0; i < nr_files-3; ++i) + free (ebr[i]); + free (ebr); + } } static int @@ -237,17 +245,11 @@ partitioning_config_complete (void) total_size = 0; for (i = 0; i < nr_files; ++i) total...

An evolution of the patch I posted yesterday to qemu-devel (https://www.mail-archive.com/qemu-devel@nongnu.org/msg588920.html) which (a) works and (b) has a test. Rich.

This is a revised version of the two series previously posted here: https://www.redhat.com/archives/libguestfs/2019-January/msg00137.html https://www.redhat.com/archives/libguestfs/2019-January/msg00139.html There have been many smaller changes but the highlights are: - Using SECTOR_SIZE instead of hard-coding 512 everywhere. - Additional safety checks that the EBR chain doesn't jump

...create_regions (disk) == -1) + return -1; + + /* Initialize partition table structures. This depends on + * disk->regions so must be done last. + */ + if (create_partition_table (disk) == -1) + return -1; + + return 0; +} + +void +free_virtual_disk (struct virtual_disk *disk) +{ + free_regions (&disk->regions); + free (disk->protective_mbr); + free (disk->primary_header); + free (disk->pt); + free (disk->secondary_header); + if (disk->fd >= 0) + close (disk->fd); +} + +/* Lay out the final disk. */ +static int +create_regions (struct virtual_disk *dis...

...if (create_fat (floppy) == -1) + return -1; + + /* Now we know how large everything is we can create the virtual + * disk regions. + */ + if (create_regions (floppy) == -1) + return -1; + + return 0; +} + +void +free_virtual_floppy (struct virtual_floppy *floppy) +{ + size_t i; + + free_regions (&floppy->regions); + + free (floppy->fat); + + for (i = 0; i < floppy->nr_files; ++i) { + free (floppy->files[i].name); + free (floppy->files[i].host_path); + } + free (floppy->files); + + for (i = 0; i < floppy->nr_dirs; ++i) { + free (floppy->dirs...

...create_regions (disk) == -1) + return -1; + + /* Initialize partition table structures. This depends on + * disk->regions so must be done last. + */ + if (create_partition_table (disk) == -1) + return -1; + + return 0; +} + +void +free_virtual_disk (struct virtual_disk *disk) +{ + free_regions (&disk->regions); + free (disk->protective_mbr); + free (disk->primary_header); + free (disk->pt); + free (disk->secondary_header); + if (disk->fd >= 0) + close (disk->fd); +} + +/* Lay out the final disk. */ +static int +create_regions (struct virtual_disk *dis...

For v3 I reimplemented this using mke2fs -d. This obviously makes the implementation a whole lot simpler, but cannot support multiple directory merging. Patches 1-3 are the same as before. I've also reproduced the notes from v2 below. v2: - Fix inconsistent tab/space. - All 3 plugins now contain a block of text pointing to the other 2 plugins. - TMDIR -> TMPDIR - Unlink the

Add nbdkit-floppy-plugin, “inspired” by qemu's VVFAT driver, but without the ability to handle writes. The implementation is pretty complete, supporting FAT32, LFNs, volume labels, timestamps, etc, and it passes both ‘make check’ and ‘make check-valgrind’. Usage is simple; to serve the current directory: $ nbdkit floppy . Then using guestfish (or any NBD client): $ guestfish --ro

Another interesting thing you can do with this plugin: https://rwmj.wordpress.com/2019/02/19/nbdkit-linuxdisk-plugin/ v2: - Fix inconsistent tab/space. - All 3 plugins now contain a block of text pointing to the other 2 plugins. - TMDIR -> TMPDIR - Unlink the temporary file and other cleanups along error paths. - fclose -> pclose, and check the return value for errors. -

Turns out Japanese trains are good for coding! In supermin we have a bunch of code to create the libguestfs appliance. It creates it directly using libext2fs (part of e2fsprogs). We can use the same technique to create ext2 virtual disks in nbdkit, which is what this new plugin does. Why a new plugin instead of modifying the floppy plugin? See the 4/4 commit message for an explanation. The