diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_read_private.h')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_read_private.h | 44 |
1 files changed, 39 insertions, 5 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_read_private.h b/Utilities/cmlibarchive/libarchive/archive_read_private.h index 76d0b91d9..8a6c859a8 100644 --- a/Utilities/cmlibarchive/libarchive/archive_read_private.h +++ b/Utilities/cmlibarchive/libarchive/archive_read_private.h @@ -58,6 +58,8 @@ struct archive_read_filter; struct archive_read_filter_bidder { /* Configuration data for the bidder. */ void *data; + /* Name of the filter */ + const char *name; /* Taste the upstream filter to see if we handle this. */ int (*bid)(struct archive_read_filter_bidder *, struct archive_read_filter *); @@ -82,6 +84,8 @@ struct archive_read_filter { struct archive_read_filter_bidder *bidder; /* My bidder. */ struct archive_read_filter *upstream; /* Who I read from. */ struct archive_read *archive; /* Associated archive. */ + /* Open a block for reading */ + int (*open)(struct archive_read_filter *self); /* Return next block. */ ssize_t (*read)(struct archive_read_filter *, const void **); /* Skip forward this many bytes. */ @@ -90,6 +94,8 @@ struct archive_read_filter { int64_t (*seek)(struct archive_read_filter *self, int64_t offset, int whence); /* Close (just this filter) and free(self). */ int (*close)(struct archive_read_filter *self); + /* Function that handles switching from reading one block to the next/prev */ + int (*sswitch)(struct archive_read_filter *self, unsigned int iindex); /* My private data. */ void *data; @@ -118,13 +124,22 @@ struct archive_read_filter { * transformation filters. This will probably break the API/ABI and * so should be deferred at least until libarchive 3.0. */ +struct archive_read_data_node { + int64_t begin_position; + int64_t total_size; + void *data; +}; struct archive_read_client { archive_open_callback *opener; archive_read_callback *reader; archive_skip_callback *skipper; archive_seek_callback *seeker; archive_close_callback *closer; - void *data; + archive_switch_callback *switcher; + unsigned int nodes; + unsigned int cursor; + int64_t position; + struct archive_read_data_node *dataset; }; struct archive_read { @@ -134,8 +149,8 @@ struct archive_read { /* Dev/ino of the archive being read/written. */ int skip_file_set; - dev_t skip_file_dev; - ino_t skip_file_ino; + int64_t skip_file_dev; + int64_t skip_file_ino; /* * Used by archive_read_data() to track blocks and copy @@ -146,18 +161,33 @@ struct archive_read { int64_t read_data_output_offset; size_t read_data_remaining; - /* Callbacks to open/read/write/close client archive stream. */ + /* + * Used by formats/filters to determine the amount of data + * requested from a call to archive_read_data(). This is only + * useful when the format/filter has seek support. + */ + char read_data_is_posix_read; + size_t read_data_requested; + + /* Callbacks to open/read/write/close client archive streams. */ struct archive_read_client client; /* Registered filter bidders. */ - struct archive_read_filter_bidder bidders[9]; + struct archive_read_filter_bidder bidders[14]; /* Last filter in chain */ struct archive_read_filter *filter; + /* Whether to bypass filter bidding process */ + int bypass_filter_bidding; + /* File offset of beginning of most recently-read header. */ int64_t header_position; + /* Nodes and offsets of compressed data block */ + unsigned int data_start_node; + unsigned int data_end_node; + /* * Format detection is mostly the same as compression * detection, with one significant difference: The bidders @@ -175,6 +205,7 @@ struct archive_read { int (*read_header)(struct archive_read *, struct archive_entry *); int (*read_data)(struct archive_read *, const void **, size_t *, int64_t *); int (*read_data_skip)(struct archive_read *); + int64_t (*seek_data)(struct archive_read *, int64_t, int); int (*cleanup)(struct archive_read *); } formats[16]; struct archive_format_descriptor *format; /* Active format. */ @@ -194,6 +225,7 @@ int __archive_read_register_format(struct archive_read *a, int (*read_header)(struct archive_read *, struct archive_entry *), int (*read_data)(struct archive_read *, const void **, size_t *, int64_t *), int (*read_data_skip)(struct archive_read *), + int64_t (*seek_data)(struct archive_read *, int64_t, int), int (*cleanup)(struct archive_read *)); int __archive_read_get_bidder(struct archive_read *a, @@ -207,4 +239,6 @@ int64_t __archive_read_filter_seek(struct archive_read_filter *, int64_t, int); int64_t __archive_read_consume(struct archive_read *, int64_t); int64_t __archive_read_filter_consume(struct archive_read_filter *, int64_t); int __archive_read_program(struct archive_read_filter *, const char *); +void __archive_read_free_filters(struct archive_read *); +int __archive_read_close_filters(struct archive_read *); #endif |