diff options
Diffstat (limited to 'src/message.h')
| -rw-r--r-- | src/message.h | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/src/message.h b/src/message.h index d6447f1..15a9330 100644 --- a/src/message.h +++ b/src/message.h @@ -20,6 +20,16 @@ +#ifndef GCC_ONLY +# if defined(__GNUC__) && !defined(__clang__) +# define GCC_ONLY(...) __VA_ARGS__ +# else +# define GCC_ONLY(...) /* nothing */ +# endif +#endif + + + /** * Message passed between a server and a client */ @@ -33,7 +43,7 @@ struct message * but `headers` itself is `NULL` if there are no headers. * The "Length" header should be included in this list. */ - char** headers; + char** restrict headers; /** * The number of headers in the message @@ -43,7 +53,7 @@ struct message /** * The payload of the message, `NULL` if none (of zero-length) */ - char* payload; + char* restrict payload; /** * The size of the payload @@ -58,7 +68,7 @@ struct message /** * Internal buffer for the reading function (internal data) */ - char* buffer; + char* restrict buffer; /** * The size allocated to `buffer` (internal data) @@ -90,7 +100,8 @@ struct message * @param this Memory slot in which to store the new message * @return Non-zero on error, `errno` will be set accordingly */ -int message_initialise(struct message* this); +GCC_ONLY(__attribute__((nonnull))) +int message_initialise(struct message* restrict this); /** * Release all resources in a message, should @@ -98,7 +109,8 @@ int message_initialise(struct message* this); * * @param this The message */ -void message_destroy(struct message* this); +GCC_ONLY(__attribute__((nonnull))) +void message_destroy(struct message* restrict this); /** * Marshal a message for state serialisation @@ -109,7 +121,8 @@ void message_destroy(struct message* this); * needs to be * @return The number of marshalled byte */ -size_t message_marshal(const struct message* this, void* buf); +GCC_ONLY(__attribute__((nonnull(1)))) +size_t message_marshal(const struct message* restrict this, void* restrict buf); /** * Unmarshal a message for state deserialisation @@ -118,7 +131,8 @@ size_t message_marshal(const struct message* this, void* buf); * @param buf In buffer with the marshalled data * @return The number of unmarshalled bytes, 0 on error */ -size_t message_unmarshal(struct message* this, const void* buf); +GCC_ONLY(__attribute__((nonnull))) +size_t message_unmarshal(struct message* restrict this, const void* restrict buf); /** * Read the next message from a file descriptor @@ -134,5 +148,6 @@ size_t message_unmarshal(struct message* this, const void* buf); * Other: Failure * -2: Corrupt message (unrecoverable) */ -int message_read(struct message* this, int fd); +GCC_ONLY(__attribute__((nonnull))) +int message_read(struct message* restrict this, int fd); |