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include/hw/loader.h: Document load_image_size()

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Add a documentation comment for load_image_size().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20181130151712.2312-11-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2018-12-14 13:30:53 +00:00
parent 2933f6980b
commit 061923298f
1 changed files with 16 additions and 0 deletions
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16
include/hw/loader.h
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@ -11,6 +11,22 @@
* On error, errno is also set as appropriate.
*/
int64_t get_image_size(const char *filename);
/**
* load_image_size: load an image file into specified buffer
* @filename: Path to the image file
* @addr: Buffer to load image into
* @size: Size of buffer in bytes
*
* Load an image file from disk into the specified buffer.
* If the image is larger than the specified buffer, only
* @size bytes are read (this is not considered an error).
*
* Prefer to use the GLib function g_file_get_contents() rather
* than a "get_image_size()/g_malloc()/load_image_size()" sequence.
*
* Returns the number of bytes read, or -1 on error. On error,
* errno is also set as appropriate.
*/
ssize_t load_image_size(const char *filename, void *addr, size_t size);
/**load_image_targphys_as: