Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 393 insertions, 0 deletions

diff --git a/storage/maria/libmarias3/docs/api/functions.rst b/storage/maria/libmarias3/docs/api/functions.rst
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+Functions
+=========
+
+ms3_library_init()
+------------------
+
+.. c:function:: void ms3_library_init(void)
+
+   Initializes the library for use.
+   Should be called before any threads are spawned.
+
+ms3_library_deinit()
+--------------------
+
+.. c:function:: void ms3_library_deinit(void)
+
+   Cleans up the library, typically for the end of the application's execution.
+
+ms3_library_init_malloc()
+-------------------------
+
+.. c:function:: uint8_t ms3_library_init_malloc(ms3_malloc_callback m, ms3_free_callback f, ms3_realloc_callback r, ms3_strdup_callback s, ms3_calloc_callback c)
+
+   Initialize the library for use with custom allocator replacement functions. These functions are also fed into libcurl. The function prototypes should be as follows:
+
+   .. c:function:: void *ms3_malloc_callback(size_t size)
+
+      To replace ``malloc()``.
+
+   .. c:function:: void ms3_free_callback(void *ptr)
+
+      To replace ``free()``.
+
+   .. c:function:: void *ms3_realloc_callback(void *ptr, size_t size)
+
+      To replace ``realloc()``.
+
+   .. c:function:: char *ms3_strdup_callback(const char *str)
+
+      To replace ``strdup()``.
+
+   .. c:function:: void *ms3_calloc_callback(size_t nmemb, size_t size)
+
+      To replace ``calloc()``.
+
+   Should be called before any threads are spawned. All parameters are required or the function *will* fail.
+
+   Remember: With great power comes great responsibility.
+
+   :param m: The malloc callback
+   :param f: The free callback
+   :param r: The realloc callback
+   :param s: The strdup callback
+   :param c: The calloc callback
+   :returns: ``0`` on success, ``MS3_ERR_PARAMETER`` if a parameter is ``NULL``
+
+ms3_init()
+----------
+
+.. c:function:: ms3_st *ms3_init(const char *s3key, const char *s3secret, const char *region, const char *base_domain)
+
+   Initializes a :c:type:`ms3_st` object. This object should only be used in
+   the thread that created it because it reuses connections. But it is safe to
+   have other :c:type:`ms3_st` objects running at the same time in other threads.
+
+   .. note::
+       You *MUST* call :c:func:`ms3_library_init` before
+       spawning threads when using this access method.
+
+   :param s3key: The AWS access key
+   :param s3secret: The AWS secret key
+   :param region: The AWS region to use (such as ``us-east-1``)
+   :param base_domain: A domain name to use if AWS S3 is not the desired server (set to ``NULL`` for S3)
+   :returns: A newly allocated marias3 object
+
+ms3_deinit()
+------------
+
+.. c:function:: void ms3_deinit(ms3_st *ms3)
+
+   Cleans up and frees a :c:type:`ms3_st` object.
+
+   :param ms3: The marias3 object
+
+ms3_server_error()
+------------------
+
+.. c:function:: const char *ms3_server_error(ms3_st *ms3)
+
+   Returns the last error message from the S3 server or underlying Curl library.
+
+   :param ms3: The marias3 object
+   :returns: The error message string or ``NULL`` if there is no message.
+
+ms3_error()
+-----------
+
+.. c:function:: const char *ms3_error(uint8_t errcode)
+
+   Returns an error message for a given error code
+
+   :param errcode: The error code to translate
+   :returns: The error message
+
+ms3_debug()
+-----------
+
+.. c:function:: void ms3_debug()
+
+   Enables and disables debugging output on stderr. Each call toggles enable / disable.
+
+   Note::
+       This enables/disables globally for the library
+
+ms3_list()
+----------
+
+.. c:function:: uint8_t ms3_list(ms3_st *ms3, const char *bucket, const char *prefix, ms3_list_st **list)
+
+   Retrieves a list of files from a given S3 bucket and fills it into a :c:type:`ms3_list_st`.
+
+   The list generated is the eqivilent of a recursive directory listing but only has files in it, no entries for directories.
+
+   The list will automatically be freed on the next list/list_dir call or :c:func:`ms3_deinit`
+
+   :param ms3: The marias3 object
+   :param bucket: The bucket name to use
+   :param prefix: An optional path/file prefix to use (``NULL`` for all files)
+   :param list: A pointer to a pointer that will contain the returned list
+   :returns: ``0`` on success, a positive integer on failure
+
+Example
+^^^^^^^
+
+.. code-block:: c
+
+   char *s3key= getenv("S3KEY");
+   char *s3secret= getenv("S3SECRET");
+   char *s3region= getenv("S3REGION");
+   char *s3bucket= getenv("S3BUCKET");
+   ms3_list_st *list= NULL, *list_it= NULL;
+   uint8_t res;
+
+   ms3_library_init();
+   ms3_st *ms3= ms3_thread_init(s3key, s3secret, s3region, NULL);
+
+   res= ms3_list(ms3, s3bucket, NULL, &list);
+   if (res)
+   {
+       printf("Error occured: %d\n", res);
+       return;
+   }
+   list_it= list;
+   while(list_it)
+   {
+     printf("File: %s, size: %ld, tstamp: %ld\n", list_it->key, list_it->length, list_it->created);
+     list_it= list_it->next;
+   }
+   ms3_deinit(ms3);
+
+ms3_list_dir()
+--------------
+
+.. c:function:: uint8_t ms3_list_dir(ms3_st *ms3, const char *bucket, const char *prefix, ms3_list_st **list)
+
+   Retrieves a list of files from a given S3 bucket and fills it into a :c:type:`ms3_list_st`.
+
+   The list generated will automatically add the delimiter ``/`` and therefore filter up to the first ``/`` after the prefix. Unlike :c:func:`ms3_list` it includes directory entries. This is the eqivilent of doing a regular directory listing in a current directory (as designated by ``prefix``).
+
+   The list will automatically be freed on the next list/list_dir call or :c:func:`ms3_deinit`
+
+   :param ms3: The marias3 object
+   :param bucket: The bucket name to use
+   :param prefix: An optional path/file prefix to use (``NULL`` for all files)
+   :param list: A pointer to a pointer that will contain the returned list
+   :returns: ``0`` on success, a positive integer on failure
+
+
+ms3_list_free()
+---------------
+
+.. c:function:: void ms3_list_free(ms3_list_st *list)
+
+   .. deprecated:: 3.1.1
+      Now a NULL operation which be removed in 4.0
+
+   A NULL operation, previously free'd :c:func:`ms3_list`, but this is now done internally on :c:func:`ms3_deinit` or when a new list is requested.
+
+   :param list: The list to free
+
+ms3_put()
+---------
+
+.. c:function:: uint8_t ms3_put(ms3_st *ms3, const char *bucket, const char *key, const uint8_t *data, size_t length)
+
+   Puts a binary data from a given pointer into S3 at a given key/filename. If an existing key/file exists with the same name this will be overwritten.
+
+   :param ms3: The marias3 object
+   :param bucket: The bucket name to use
+   :param key: The key/filename to create/overwrite
+   :param data: A pointer to the data to write
+   :param length: The length of the data to write
+   :returns: ``0`` on success, a positive integer on failure
+
+Example
+^^^^^^^
+
+.. code-block:: c
+
+   char *s3key= getenv("S3KEY");
+   char *s3secret= getenv("S3SECRET");
+   char *s3region= getenv("S3REGION");
+   char *s3bucket= getenv("S3BUCKET");
+   uint8_t res;
+   const char *test_string= "Another one bites the dust";
+
+   ms3_library_init();
+   ms3_st *ms3= ms3_thread_init(s3key, s3secret, s3region, NULL);
+
+   res= ms3_put(ms3, s3bucket, "test/ms3.txt", (const uint8_t*)test_string, strlen(test_string));
+   if (res)
+   {
+       printf("Error occured: %d\n", res);
+       return;
+   }
+   ms3_deinit(ms3);
+
+
+ms3_copy()
+----------
+
+.. c:function:: uint8_t ms3_copy(ms3_st *ms3, const char *source_bucket, const char *source_key, const char *dest_bucket, const char *dest_key)
+
+   S3 internally copies an object from a source bucket and key to a destination bucket and key.
+
+   :param ms3: The marias3 object
+   :param source_bucket: The bucket where the source object is
+   :param source_key: The key/filename of the source object
+   :param dest_bucket: The destination bucket (can be the same as source)
+   :param dest_key: The destination key/filename
+   :returns: ``0`` on success, a positive integer on failure
+
+ms3_move()
+----------
+
+.. c:function:: uint8_t ms3_move(ms3_st *ms3, const char *source_bucket, const char *source_key, const char *dest_bucket, const char *dest_key)
+
+   Moves an object from source to destination. Internally the library performs a copy and if successful performs a delete on the source object.
+
+   :param ms3: The marias3 object
+   :param source_bucket: The bucket where the source object is
+   :param source_key: The key/filename of the source object
+   :param dest_bucket: The destination bucket (can be the same as source)
+   :param dest_key: The destination key/filename
+   :returns: ``0`` on success, a positive integer on failure
+
+ms3_get()
+---------
+
+.. c:function:: uint8_t ms3_get(ms3_st *ms3, const char *bucket, const char *key, uint8_t **data, size_t *length)
+
+   Retrieves a given object from S3.
+
+   .. Note::
+       The application is expected to free the resulting data pointer after use
+
+   :param ms3: The marias3 object
+   :param bucket: The bucket name to use
+   :param key: The key/filename to retrieve
+   :param data: A pointer to a pointer the data to be retrieved into
+   :param length: A pointer to the data length
+   :returns: ``0`` on success, a positive integer on failure
+
+Example
+^^^^^^^
+
+.. code-block:: c
+
+   char *s3key= getenv("S3KEY");
+   char *s3secret= getenv("S3SECRET");
+   char *s3region= getenv("S3REGION");
+   char *s3bucket= getenv("S3BUCKET");
+   uint8_t res;
+   uint8_t *data= NULL;
+   size_t length;
+
+   ms3_library_init();
+   ms3_st *ms3= ms3_thread_init(s3key, s3secret, s3region, NULL);
+
+   res= ms3_get(ms3, s3bucket, "test/ms3.txt", &data, &length);
+   if (res)
+   {
+       printf("Error occured: %d\n", res);
+       return;
+   }
+   printf("File contents: %s\n", data);
+   printf("File length: %ld\n", length);
+   ms3_free(data);
+   ms3_deinit(ms3);
+
+ms3_free()
+----------
+
+.. c:function:: void ms3_free(uint8_t *data)
+
+   Used to free the data allocated by :c:func:`ms3_get`.
+
+   :param data: The data to free
+
+ms3_set_option()
+----------------
+
+.. c:function:: uint8_t ms3_set_option(ms3_st *ms3, ms3_set_option_t option, void *value)
+
+   Sets a given connection option. See :c:type:`ms3_set_option_t` for a list of options.
+
+   :param ms3: The marias3 object
+   :param option: The option to set
+   :param value: A pointer to the value for the option (if required, ``NULL`` if not)
+   :returns: ``0`` on success, a positive integer on failure
+
+ms3_delete()
+------------
+
+.. c:function:: uint8_t ms3_delete(ms3_st *ms3, const char *bucket, const char *key)
+
+   Deletes an object from an S3 bucket
+
+   :param ms3: The marias3 object
+   :param bucket: The bucket name to use
+   :param key: The key/filename to delete
+   :returns: ``0`` on success, a positive integer on failure
+
+Example
+^^^^^^^
+
+.. code-block:: c
+
+   char *s3key= getenv("S3KEY");
+   char *s3secret= getenv("S3SECRET");
+   char *s3region= getenv("S3REGION");
+   char *s3bucket= getenv("S3BUCKET");
+   uint8_t res;
+
+   ms3_library_init();
+   ms3_st *ms3= ms3_thread_init(s3key, s3secret, s3region, NULL);
+
+   res = ms3_delete(ms3, s3bucket, "test/ms3.txt");
+   if (res)
+   {
+       printf("Error occured: %d\n", res);
+       return;
+   }
+   ms3_deinit(ms3);
+
+ms3_status()
+------------
+
+.. c:function:: uint8_t ms3_status(ms3_st *ms3, const char *bucket, const char *key, ms3_status_st *status)
+
+   Retreives the status of a given filename/key into a :c:type:`ms3_status_st` object. Will return an error if not found.
+
+   :param ms3: The marias3 object
+   :param bucket: The bucket name to use
+   :param key: The key/filename to status check
+   :param status: A status object to fill
+   :returns: ``0`` on success, a positive integer on failure
+
+Example
+^^^^^^^
+
+.. code-block:: c
+
+   char *s3key= getenv("S3KEY");
+   char *s3secret= getenv("S3SECRET");
+   char *s3region= getenv("S3REGION");
+   char *s3bucket= getenv("S3BUCKET");
+   uint8_t res;
+   ms3_status_st status;
+
+   ms3_library_init();
+   ms3_st *ms3= ms3_thread_init(s3key, s3secret, s3region, NULL);
+
+   res= ms3_status(ms3, s3bucket, "test/ms3.txt", &status);
+   if (res)
+   {
+       printf("Error occured: %d\n", res);
+       return;
+   }
+   printf("File length: %ld\n", status.length);
+   printf("File timestamp: %ld\n", status.created);
+   ms3_deinit(ms3);
+