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[REORG] stream_interface: split the struct members in 3 parts

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Those 3 parts are the buffer side, the remote side and the communication
functions. This change has no functional effect but is needed to proceed
further.
This commit is contained in:
Willy Tarreau 2011-03-03 17:08:11 +01:00
parent bc4af0573c
commit be5ea19188
1 changed files with 18 additions and 6 deletions
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24
include/types/stream_interface.h
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@ -80,17 +80,29 @@ struct server;
struct proxy;
struct si_applet;
/* A stream interface has 3 parts :
* - the buffer side, which interfaces to the buffers.
* - the remote side, which describes the state and address of the other side.
* - the functions, which are used by the buffer side to communicate with the
* remote side from the buffer side.
*/
/* Note that if an applet is registered, the update function will not be called
* by the session handler, so it may be used to resync flags at the end of the
* applet handler. See stream_int_update_embedded() for reference.
*/
struct stream_interface {
/* struct members used by the "buffer" side */
unsigned int state; /* SI_ST* */
unsigned int prev_state;/* SI_ST*, copy of previous state */
void *owner; /* generally a (struct task*) */
int fd; /* file descriptor for a stream driver when known */
unsigned int flags;
unsigned int flags; /* SI_FL_* */
struct buffer *ib, *ob; /* input and output buffers */
unsigned int exp; /* wake up time for connect, queue, turn-around, ... */
void *owner; /* generally a (struct task*) */
unsigned int err_type; /* first error detected, one of SI_ET_* */
void *err_loc; /* commonly the server, NULL when SI_ET_NONE */
/* these struct members are used by the buffer side to act on the remote side */
void (*update)(struct stream_interface *); /* I/O update function */
void (*shutr)(struct stream_interface *); /* shutr function */
void (*shutw)(struct stream_interface *); /* shutw function */
@ -99,10 +111,10 @@ struct stream_interface {
int (*connect)(struct stream_interface *, struct proxy *, struct server *,
struct sockaddr *, struct sockaddr *); /* connect function if any */
void (*release)(struct stream_interface *); /* handler to call after the last close() */
struct buffer *ib, *ob; /* input and output buffers */
/* struct members below are the "remote" part, as seen from the buffer side */
int conn_retries; /* number of connect retries left */
unsigned int err_type; /* first error detected, one of SI_ET_* */
void *err_loc; /* commonly the server, NULL when SI_ET_NONE */
int fd; /* file descriptor for a stream driver when known */
struct {
struct si_applet *handler; /* applet to use instead of doing I/O */
void *private; /* may be used by any function above */