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libpv: add copied parameter to pv_gbytes_memcpy and adapt pvattest

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It's often useful to know how much data was actually copied, therefore let's
introduce an nullable parameter `@copied` to `pv_gbytes_memcpy`.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2022-09-29 08:15:44 +00:00
committed by Jan Höppner
parent d69b9fab4a
commit 330ddb7adb
5 changed files with 18 additions and 13 deletions
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7
include/libpv/glib-helper.h
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@@ -102,9 +102,12 @@ FILE *pv_file_open(const char *filename, const char *mode, GError **error);
/** pv_gbytes_memcpy:
*
* memcpy with size check.
* memcpy with size check. In case @dst_size is smaller than the size of @src
* the error value %NULL is returned and @copied and @dst are left unchanged.
*
* If @dst and @src data overlap, the behavior is undefined.
*/
void *pv_gbytes_memcpy(void *dst, size_t dst_size, GBytes *src);
void *pv_gbytes_memcpy(void *dst, size_t dst_size, GBytes *src, size_t *copied);
#define PV_GLIB_HELPER_ERROR g_quark_from_static_string("pv-glib-helper_error-quark")
typedef enum {