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DIET/MINOR: connection: rearrange a few fields to save 8 bytes in the struct

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By moving the error code to 8 bits the send_proxy_ofs to 16 bits, and
moving them just after the obj_type, we can save 8 bytes in the struct
connection, down from 328 to 320.
This commit is contained in:
Willy Tarreau 2013-12-06 21:09:57 +01:00
parent 939478d04d
commit ad5281ca04
1 changed files with 3 additions and 2 deletions
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5
include/types/connection.h
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@ -242,6 +242,8 @@ struct conn_src {
*/ */
struct connection { struct connection {
enum obj_type obj_type; /* differentiates connection from applet context */ enum obj_type obj_type; /* differentiates connection from applet context */
unsigned char err_code; /* CO_ER_* */
signed short send_proxy_ofs; /* <0 = offset to (re)send from the end, >0 = send all */
unsigned int flags; /* CO_FL_* */ unsigned int flags; /* CO_FL_* */
const struct protocol *ctrl; /* operations at the socket layer */ const struct protocol *ctrl; /* operations at the socket layer */
const struct xprt_ops *xprt; /* operations at the transport layer */ const struct xprt_ops *xprt; /* operations at the transport layer */
@ -249,13 +251,12 @@ struct connection {
void *xprt_ctx; /* general purpose pointer, initialized to NULL */ void *xprt_ctx; /* general purpose pointer, initialized to NULL */
void *owner; /* pointer to upper layer's entity (eg: stream interface) */ void *owner; /* pointer to upper layer's entity (eg: stream interface) */
int xprt_st; /* transport layer state, initialized to zero */ int xprt_st; /* transport layer state, initialized to zero */
int send_proxy_ofs; /* <0 = offset to (re)send from the end, >0 = send all */
union { /* definitions which depend on connection type */ union { /* definitions which depend on connection type */
struct { /*** information used by socket-based connections ***/ struct { /*** information used by socket-based connections ***/
int fd; /* file descriptor for a stream driver when known */ int fd; /* file descriptor for a stream driver when known */
} sock; } sock;
} t; } t;
unsigned int err_code; /* CO_ER_* */
enum obj_type *target; /* the target to connect to (server, proxy, applet, ...) */ enum obj_type *target; /* the target to connect to (server, proxy, applet, ...) */
struct { struct {
struct sockaddr_storage from; /* client address, or address to spoof when connecting to the server */ struct sockaddr_storage from; /* client address, or address to spoof when connecting to the server */