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- From fd8d8242b0ca277c29ffb901e526ed5b40d4e4d3 Mon Sep 17 00:00:00 2001
- From: Stefano Babic <sbabic@denx.de>
- Date: Sun, 19 Mar 2017 13:00:47 +0100
- Subject: [PATCH v1 3/4] env: add a version number to check API
- Changes in the environment library are difficult to tracked by programs
- using the library. Add simply an API version number that must be
- increased each time when the API is changed.
- This can be detected and a program can work with different versions of
- the library.
- Signed-off-by: Stefano Babic <sbabic@denx.de>
- ---
- tools/env/fw_env.h | 15 +++++++++++++++
- 1 file changed, 15 insertions(+)
- diff --git a/tools/env/fw_env.h b/tools/env/fw_env.h
- index 3e5539d..cf346b3 100644
- --- a/tools/env/fw_env.h
- +++ b/tools/env/fw_env.h
- @@ -8,6 +8,13 @@
- #include <stdint.h>
- #include <uboot_aes.h>
-
- +/*
- + * Programs using the library must check which API is available,
- + * that varies depending on the U-Boot version.
- + * This can be changed in future
- + */
- +#define FW_ENV_API_VERSION 1
- +
- struct env_opts {
- #ifdef CONFIG_FILE
- char *config_file;
- @@ -140,4 +147,12 @@ int fw_env_write(char *name, char *value);
- */
- int fw_env_close(struct env_opts *opts);
-
- +/**
- + * fw_env_version - return the current version of the library
- + *
- + * Return:
- + * version string of the library
- + */
- +char *fw_env_version(void);
- +
- unsigned long crc32(unsigned long, const unsigned char *, unsigned);
- --
- 2.7.4
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