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author | Giuseppe Scrivano <gscrivan@redhat.com> | 2015-07-28 12:39:36 +0200 |
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committer | Giuseppe Scrivano <gscrivan@redhat.com> | 2015-07-28 13:02:27 +0200 |
commit | b7063ed1ae11be90824d1af4934204cf09f0f53a (patch) | |
tree | cae3bf85792df9e583b2699da5a095300cabb656 /src | |
parent | cac92f62c478288c50b401562d3d3c9baec8e71d (diff) | |
download | ostree-b7063ed1ae11be90824d1af4934204cf09f0f53a.tar.gz |
static-delta: add max-bsdiff-size option
It allows to specify the maximum size for input files to attempt
bsdiff compression for.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Diffstat (limited to 'src')
-rw-r--r-- | src/libostree/ostree-repo-static-delta-compilation.c | 16 | ||||
-rw-r--r-- | src/ostree/ot-builtin-static-delta.c | 5 |
2 files changed, 17 insertions, 4 deletions
diff --git a/src/libostree/ostree-repo-static-delta-compilation.c b/src/libostree/ostree-repo-static-delta-compilation.c index 6f1513c9..aafe6fba 100644 --- a/src/libostree/ostree-repo-static-delta-compilation.c +++ b/src/libostree/ostree-repo-static-delta-compilation.c @@ -53,6 +53,7 @@ typedef struct { GPtrArray *fallback_objects; guint64 loose_compressed_size; guint64 min_fallback_size_bytes; + guint64 max_bsdiff_size_bytes; guint64 max_chunk_size_bytes; guint64 rollsum_size; guint n_rollsum; @@ -500,8 +501,9 @@ try_content_bsdiff (OstreeRepo *repo, const char *from, const char *to, ContentBsdiff **out_bsdiff, + guint64 max_bsdiff_size_bytes, GCancellable *cancellable, - GError **error) + GError **error) { gboolean ret = FALSE; g_autoptr(GHashTable) from_bsdiff = NULL; @@ -521,8 +523,7 @@ try_content_bsdiff (OstreeRepo *repo, cancellable, error)) goto out; - /* TODO: make this option configurable. */ - if (g_bytes_get_size (tmp_to) + g_bytes_get_size (tmp_from) > (200 * (1 << 20))) + if (g_bytes_get_size (tmp_to) + g_bytes_get_size (tmp_from) > max_bsdiff_size_bytes) { ret = TRUE; goto out; @@ -1008,7 +1009,8 @@ generate_delta_lowlatency (OstreeRepo *repo, if (!(opts & DELTAOPT_FLAG_DISABLE_BSDIFF)) { if (!try_content_bsdiff (repo, from_checksum, to_checksum, - &bsdiff, cancellable, error)) + &bsdiff, builder->max_bsdiff_size_bytes, + cancellable, error)) goto out; if (bsdiff) @@ -1228,6 +1230,8 @@ get_fallback_headers (OstreeRepo *self, * are known: * - min-fallback-size: u: Minimume uncompressed size in megabytes to use fallback * - max-chunk-size: u: Maximum size in megabytes of a delta part + * - max-bsdiff-size: u: Maximum size in megabytes to consider bsdiff compression + * for input files * - compression: y: Compression type: 0=none, x=lzma, g=gzip * - bsdiff-enabled: b: Enable bsdiff compression. Default TRUE. * - verbose: b: Print diagnostic messages. Default FALSE. @@ -1246,6 +1250,7 @@ ostree_repo_static_delta_generate (OstreeRepo *self, OstreeStaticDeltaBuilder builder = { 0, }; guint i; guint min_fallback_size; + guint max_bsdiff_size; guint max_chunk_size; GVariant *metadata_source; DeltaOpts delta_opts = DELTAOPT_FLAG_NONE; @@ -1268,6 +1273,9 @@ ostree_repo_static_delta_generate (OstreeRepo *self, min_fallback_size = 4; builder.min_fallback_size_bytes = ((guint64)min_fallback_size) * 1000 * 1000; + if (!g_variant_lookup (params, "max-bsdiff-size", "u", &max_bsdiff_size)) + max_bsdiff_size = 128; + builder.max_bsdiff_size_bytes = ((guint64)max_bsdiff_size) * 1000 * 1000; if (!g_variant_lookup (params, "max-chunk-size", "u", &max_chunk_size)) max_chunk_size = 32; builder.max_chunk_size_bytes = ((guint64)max_chunk_size) * 1000 * 1000; diff --git a/src/ostree/ot-builtin-static-delta.c b/src/ostree/ot-builtin-static-delta.c index 04aab0b5..abb0b635 100644 --- a/src/ostree/ot-builtin-static-delta.c +++ b/src/ostree/ot-builtin-static-delta.c @@ -29,6 +29,7 @@ static char *opt_from_rev; static char *opt_to_rev; static char *opt_min_fallback_size; +static char *opt_max_bsdiff_size; static char *opt_max_chunk_size; static gboolean opt_empty; static gboolean opt_disable_bsdiff; @@ -55,6 +56,7 @@ static GOptionEntry generate_options[] = { { "to", 0, 0, G_OPTION_ARG_STRING, &opt_to_rev, "Create delta to revision REV", "REV" }, { "disable-bsdiff", 0, 0, G_OPTION_ARG_NONE, &opt_disable_bsdiff, "Disable use of bsdiff", NULL }, { "min-fallback-size", 0, 0, G_OPTION_ARG_STRING, &opt_min_fallback_size, "Minimum uncompressed size in megabytes for individual HTTP request", NULL}, + { "max-bsdiff-size", 0, 0, G_OPTION_ARG_STRING, &opt_max_bsdiff_size, "Maximum size in megabytes to consider bsdiff compression for input files", NULL}, { "max-chunk-size", 0, 0, G_OPTION_ARG_STRING, &opt_max_chunk_size, "Maximum size of delta chunks in megabytes", NULL}, { NULL } }; @@ -190,6 +192,9 @@ ot_static_delta_builtin_generate (int argc, char **argv, GCancellable *cancellab if (opt_min_fallback_size) g_variant_builder_add (parambuilder, "{sv}", "min-fallback-size", g_variant_new_uint32 (g_ascii_strtoull (opt_min_fallback_size, NULL, 10))); + if (opt_max_bsdiff_size) + g_variant_builder_add (parambuilder, "{sv}", + "max-bsdiff-size", g_variant_new_uint32 (g_ascii_strtoull (opt_max_bsdiff_size, NULL, 10))); if (opt_max_chunk_size) g_variant_builder_add (parambuilder, "{sv}", "max-chunk-size", g_variant_new_uint32 (g_ascii_strtoull (opt_max_chunk_size, NULL, 10))); |