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| author | Krzysztof Opasiak <k.opasiak@samsung.com> | 2014-03-07 11:44:42 +0100 |
|---|---|---|
| committer | Krzysztof Opasiak <k.opasiak@samsung.com> | 2014-03-10 09:15:13 +0100 |
| commit | 4071efa817e055c38fedd6605ecf502af19b4cf7 (patch) | |
| tree | c0379b3090360363444d8006e1c616be5fc07568 /include/usbg | |
| parent | 22838e8385eb6509010ce4f6b1c0a05557e6306b (diff) | |
| download | libusbg-4071efa817e055c38fedd6605ecf502af19b4cf7.tar.gz libusbg-4071efa817e055c38fedd6605ecf502af19b4cf7.tar.bz2 libusbg-4071efa817e055c38fedd6605ecf502af19b4cf7.zip | |
libusbg: Add error handling to usbg_init() and related functions.
Assumption that all malloc() and read()/write() finish correctly
is too bold. Errors should be handled and propagated to upper
layers of library and returned to user.
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Diffstat (limited to 'include/usbg')
| -rw-r--r-- | include/usbg/usbg.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/usbg/usbg.h b/include/usbg/usbg.h index 562fdc5..ffef084 100644 --- a/include/usbg/usbg.h +++ b/include/usbg/usbg.h @@ -175,14 +175,29 @@ typedef union { usbg_f_phonet_attrs phonet; } usbg_function_attrs; +/** + * @typedef usbg_error + * @brief Errors which could be returned by library functions + */ +typedef enum { + USBG_SUCCESS = 0, + USBG_ERROR_NO_MEM = -1, + USBG_ERROR_NO_ACCESS = -2, + USBG_ERROR_INVALID_PARAM = -3, + USBG_ERROR_NOT_FOUND = -4, + USBG_ERROR_IO = -5, + USBG_ERROR_OTHER_ERROR = -99 +} usbg_error; + /* Library init and cleanup */ /** * @brief Initialize the libusbg library state * @param configfs_path Path to the mounted configfs filesystem - * @return Pointer to a state structure + * @param Pointer to be filled with pointer to usbg_state + * @return 0 on success, usbg_error on error */ -extern usbg_state *usbg_init(char *configfs_path); +extern int usbg_init(char *configfs_path, usbg_state **state); /** * @brief Clean up the libusbg library state |