diff options
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/buflib.c | 4 | ||||
| -rw-r--r-- | firmware/include/buflib.h | 11 |
2 files changed, 9 insertions, 6 deletions
diff --git a/firmware/buflib.c b/firmware/buflib.c index f7ef35e..7c5f3d2 100644 --- a/firmware/buflib.c +++ b/firmware/buflib.c @@ -425,7 +425,7 @@ handle_alloc: goto handle_alloc; } } - return 0; + return -1; } } @@ -471,7 +471,7 @@ buffer_alloc: } else { handle->val=1; handle_free(ctx, handle); - return 0; + return -2; } } diff --git a/firmware/include/buflib.h b/firmware/include/buflib.h index db7b5ec..3d8f43e 100644 --- a/firmware/include/buflib.h +++ b/firmware/include/buflib.h @@ -153,7 +153,8 @@ size_t buflib_available(struct buflib_context *ctx); * * size: How many bytes to allocate * - * Returns: An integer handle identifying this allocation + * Returns: A positive integer handle identifying this allocation, or + * a negative value on error (0 is also not a valid handle) */ int buflib_alloc(struct buflib_context *context, size_t size); @@ -166,7 +167,8 @@ int buflib_alloc(struct buflib_context *context, size_t size); * size: How many bytes to allocate * ops: a struct with pointers to callback functions (see above) * - * Returns: An integer handle identifying this allocation + * Returns: A positive integer handle identifying this allocation, or + * a negative value on error (0 is also not a valid handle) */ int buflib_alloc_ex(struct buflib_context *ctx, size_t size, const char *name, struct buflib_callbacks *ops); @@ -188,7 +190,8 @@ int buflib_alloc_ex(struct buflib_context *ctx, size_t size, const char *name, * size: The actual size will be returned into size * ops: a struct with pointers to callback functions * - * Returns: An integer handle identifying this allocation + * Returns: A positive integer handle identifying this allocation, or + * a negative value on error (0 is also not a valid handle) */ int buflib_alloc_maximum(struct buflib_context* ctx, const char* name, size_t *size, struct buflib_callbacks *ops); @@ -233,7 +236,7 @@ bool buflib_shrink(struct buflib_context *ctx, int handle, void* newstart, size_ /** * Frees memory associated with the given handle * - * Returns: 0 (to invalidate handles in one line) + * Returns: 0 (to invalidate handles in one line, 0 is not a valid handle) */ int buflib_free(struct buflib_context *context, int handle); |