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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
commit | 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch) | |
tree | 33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/libsystemd/sd-bus/bus-kernel.h | |
parent | Initial commit. (diff) | |
download | systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip |
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libsystemd/sd-bus/bus-kernel.h')
-rw-r--r-- | src/libsystemd/sd-bus/bus-kernel.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/bus-kernel.h b/src/libsystemd/sd-bus/bus-kernel.h new file mode 100644 index 0000000..be8e0ce --- /dev/null +++ b/src/libsystemd/sd-bus/bus-kernel.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include "sd-bus.h" + +#define MEMFD_CACHE_MAX 32 + +/* When we cache a memfd block for reuse, we will truncate blocks + * longer than this in order not to keep too much data around. */ +#define MEMFD_CACHE_ITEM_SIZE_MAX (128*1024) + +/* This determines at which minimum size we prefer sending memfds over + * sending vectors */ +#define MEMFD_MIN_SIZE (512*1024) + +struct memfd_cache { + int fd; + void *address; + size_t mapped; + size_t allocated; +}; + +void close_and_munmap(int fd, void *address, size_t size); +void bus_flush_memfd(sd_bus *bus); |