Coro-Mysql
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#define vio_violite_h_
/* Simple vio interface in C; The functions are implemented in violite.c */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#if MYSQL_VERSION_ID < 50100
typedef I8 *xgptr;
typedef I8 *const cxgptr;
typedef int xsize_t;
typedef int xssize_t;
#else
typedef U8 *xgptr;
typedef const U8 *cxgptr;
typedef size_t xsize_t;
typedef size_t xssize_t;
#endif
enum enum_vio_type
{
VIO_CLOSED, VIO_TYPE_TCPIP, VIO_TYPE_SOCKET, VIO_TYPE_NAMEDPIPE,
VIO_TYPE_SSL, VIO_TYPE_SHARED_MEMORY
};
#define VIO_LOCALHOST 1 /* a localhost connection */
#define VIO_BUFFERED_READ 2 /* use buffered read */
#define VIO_READ_BUFFER_SIZE 16384 /* size of read buffer */
Vio* vio_new(my_socket sd, enum enum_vio_type type, uint flags);
#ifdef __WIN__
Vio* vio_new_win32pipe(HANDLE hPipe);
Vio* vio_new_win32shared_memory(NET *net,HANDLE handle_file_map,
HANDLE handle_map,
HANDLE event_server_wrote,
HANDLE event_server_read,
HANDLE event_client_wrote,
HANDLE event_client_read,
HANDLE event_conn_closed);
xsize_t vio_read_pipe(Vio *vio, xgptr buf, xsize_t size);
xsize_t vio_write_pipe(Vio *vio, xcgptr buf, xsize_t size);
xsize_t vio_close_pipe(Vio * vio);
#else
#define HANDLE void *
#endif /* __WIN__ */
void vio_delete(Vio* vio);
int vio_close(Vio* vio);
void vio_reset(Vio* vio, enum enum_vio_type type,
my_socket sd, HANDLE hPipe, uint flags);
xsize_t vio_read(Vio *vio, xgptr buf, xsize_t size);
xsize_t vio_read_buff(Vio *vio, xgptr buf, xsize_t size);
xsize_t vio_write(Vio *vio, cxgptr buf, xsize_t size);
int vio_blocking(Vio *vio, my_bool onoff, my_bool *old_mode);
my_bool vio_is_blocking(Vio *vio);
/* setsockopt TCP_NODELAY at IPPROTO_TCP level, when possible */
int vio_fastsend(Vio *vio);
/* setsockopt SO_KEEPALIVE at SOL_SOCKET level, when possible */
int vio_keepalive(Vio *vio, my_bool onoff);
/* Whenever we should retry the last read/write operation. */
my_bool vio_should_retry(Vio *vio);
/* Check that operation was timed out */
my_bool vio_was_interrupted(Vio *vio);
/* Short text description of the socket for those, who are curious.. */
const char* vio_description(Vio *vio);
/* Return the type of the connection */
enum enum_vio_type vio_type(Vio* vio);
/* Return last error number */
int vio_errno(Vio*vio);
/* Get socket number */
my_socket vio_fd(Vio*vio);
/* Remote peer's address and name in text form */
my_bool vio_peer_addr(Vio* vio, char *buf, uint16 *port);
/* Remotes in_addr */
void vio_in_addr(Vio *vio, struct in_addr *in);
my_bool vio_poll_read(Vio *vio,uint timeout);
void vio_end(void);
#ifdef __cplusplus
}
#endif
#if !defined(DONT_MAP_VIO)
#define vio_delete(vio) (vio)->viodelete(vio)
#define vio_errno(vio) (vio)->vioerrno(vio)
#define vio_read(vio, buf, size) ((vio)->read)(vio,buf,size)
#define vio_write(vio, buf, size) ((vio)->write)(vio, buf, size)
#define vio_blocking(vio, set_blocking_mode, old_mode)\
(vio)->vioblocking(vio, set_blocking_mode, old_mode)
#define vio_is_blocking(vio) (vio)->is_blocking(vio)
#define vio_fastsend(vio) (vio)->fastsend(vio)
#define vio_keepalive(vio, set_keep_alive) (vio)->viokeepalive(vio, set_keep_alive)
#define vio_should_retry(vio) (vio)->should_retry(vio)
#define vio_was_interrupted(vio) (vio)->was_interrupted(vio)
#define vio_close(vio) ((vio)->vioclose)(vio)
#define vio_peer_addr(vio, buf, prt) (vio)->peer_addr(vio, buf, prt)
#define vio_in_addr(vio, in) (vio)->in_addr(vio, in)
#define vio_timeout(vio, which, seconds) (vio)->timeout(vio, which, seconds)
#endif /* !defined(DONT_MAP_VIO) */
/* This enumerator is used in parser - should be always visible */
enum SSL_type
{
SSL_TYPE_NOT_SPECIFIED= -1,
SSL_TYPE_NONE,
SSL_TYPE_ANY,
SSL_TYPE_X509,
SSL_TYPE_SPECIFIED
};
typedef unsigned char uchar;
/* HFTODO - hide this if we don't want client in embedded server */
/* This structure is for every connection on both sides */
#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100010
#define DESC_IS_PTR 1
struct st_vio
{
my_socket sd; /* my_socket - real or imaginary */
void *m_psi;
my_bool localhost; /* Are we from localhost? */
int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */
struct sockaddr_storage local; /* Local internet address */
struct sockaddr_storage remote; /* Remote internet address */
int addrLen; /* Length of remote address */
enum enum_vio_type type; /* Type of connection */
const char *desc; /* String description */
char *read_buffer; /* buffer for vio_read_buff */
char *read_pos; /* start of unfetched data in the
read buffer */
char *read_end; /* end of unfetched data */
struct mysql_async_context *async_context; /* For non-blocking API */
int read_timeout; /* Timeout value (ms) for read ops. */
int write_timeout; /* Timeout value (ms) for write ops. */
/* function pointers. They are similar for socket/SSL/whatever */
void (*viodelete)(Vio*);
int (*vioerrno)(Vio*);
size_t (*read)(Vio*, uchar *, size_t);
size_t (*write)(Vio*, const uchar *, size_t);
int (*timeout)(Vio*, uint, my_bool);
int (*vioblocking)(Vio*, my_bool, my_bool *);
my_bool (*is_blocking)(Vio*);
int (*viokeepalive)(Vio*, my_bool);
int (*fastsend)(Vio*);
my_bool (*peer_addr)(Vio*, char *, uint16*, size_t);
void (*in_addr)(Vio*, struct sockaddr_storage*);
my_bool (*should_retry)(Vio*);
my_bool (*was_timeout)(Vio*);
int (*vioclose)(Vio*);
my_bool (*is_connected)(Vio*);
int (*shutdown)(Vio *, int);
my_bool (*has_data) (Vio*);
};
#elif MYSQL_VERSION_ID < 50500
struct st_vio
{
my_socket sd; /* my_socket - real or imaginary */
HANDLE hPipe;
my_bool localhost; /* Are we from localhost? */
int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */
struct sockaddr_in local; /* Local internet address */
struct sockaddr_in remote; /* Remote internet address */
enum enum_vio_type type; /* Type of connection */
char desc[30]; /* String description */
char *read_buffer; /* buffer for vio_read_buff */
char *read_pos; /* start of unfetched data in the
read buffer */
char *read_end; /* end of unfetched data */
/* function pointers. They are similar for socket/SSL/whatever */
void (*viodelete)(Vio*);
int (*vioerrno)(Vio*);
xssize_t (*read)(Vio*, xgptr, xsize_t);
xssize_t (*write)(Vio*, cxgptr, xsize_t);
int (*vioblocking)(Vio*, my_bool, my_bool *);
my_bool (*is_blocking)(Vio*);
int (*viokeepalive)(Vio*, my_bool);
int (*fastsend)(Vio*);
my_bool (*peer_addr)(Vio*, char *, uint16*);
void (*in_addr)(Vio*, struct in_addr*);
my_bool (*should_retry)(Vio*);
my_bool (*was_interrupted)(Vio*);
int (*vioclose)(Vio*);
void (*timeout)(Vio*, unsigned int which, unsigned int timeout);
};
#elif MYSQL_VERSION_ID < 50600
struct st_vio
{
my_socket sd; /* my_socket - real or imaginary */
HANDLE hPipe;
my_bool localhost; /* Are we from localhost? */
int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */
struct sockaddr_storage local; /* Local internet address */
struct sockaddr_storage remote; /* Remote internet address */
int addrLen; /* Length of remote address */
enum enum_vio_type type; /* Type of connection */
char desc[30]; /* String description */
char *read_buffer; /* buffer for vio_read_buff */
char *read_pos; /* start of unfetched data in the
read buffer */
char *read_end; /* end of unfetched data */
#if defined(MARIADB_BASE_VERSION)
struct mysql_async_context *async_context; /* For non-blocking API */
uint read_timeout, write_timeout;
#endif
/* function pointers. They are similar for socket/SSL/whatever */
void (*viodelete)(Vio*);
int (*vioerrno)(Vio*);
size_t (*read)(Vio*, unsigned char *, size_t);
size_t (*write)(Vio*, const unsigned char *, size_t);
int (*vioblocking)(Vio*, my_bool, my_bool *);
my_bool (*is_blocking)(Vio*);
int (*viokeepalive)(Vio*, my_bool);
int (*fastsend)(Vio*);
my_bool (*peer_addr)(Vio*, char *, uint16*, size_t);
void (*in_addr)(Vio*, struct sockaddr_storage*);
my_bool (*should_retry)(Vio*);
my_bool (*was_interrupted)(Vio*);
int (*vioclose)(Vio*);
void (*timeout)(Vio*, unsigned int which, unsigned int timeout);
my_bool (*poll_read)(Vio *vio, uint timeout);
my_bool (*is_connected)(Vio*);
my_bool (*has_data) (Vio*);
};
#else
/* this is not supposed to work, but it's a start
* one needs to look into MYSQL_SOCKET, missing
* vioblocking and this io_wait stuff, at the least. */
/**
VIO I/O events.
*/
enum enum_vio_io_event
{
VIO_IO_EVENT_READ,
VIO_IO_EVENT_WRITE,
VIO_IO_EVENT_CONNECT
};
struct st_vio
{
MYSQL_SOCKET mysql_socket; /* Instrumented socket */
my_bool localhost; /* Are we from localhost? */
struct sockaddr_storage local; /* Local internet address */
struct sockaddr_storage remote; /* Remote internet address */
int addrLen; /* Length of remote address */
enum enum_vio_type type; /* Type of connection */
my_bool inactive; /* Connection inactive (has been shutdown) */
char desc[30]; /* Description string. This
member MUST NOT be
used directly, but only
via function
"vio_description" */
char *read_buffer; /* buffer for vio_read_buff */
char *read_pos; /* start of unfetched data in the
read buffer */
char *read_end; /* end of unfetched data */
int read_timeout; /* Timeout value (ms) for read ops. */
int write_timeout; /* Timeout value (ms) for write ops. */
/*
VIO vtable interface to be implemented by VIO's like SSL, Socket,
Named Pipe, etc.
*/
/*
viodelete is responsible for cleaning up the VIO object by freeing
internal buffers, closing descriptors, handles.
*/
void (*viodelete)(Vio*);
int (*vioerrno)(Vio*);
size_t (*read)(Vio*, uchar *, size_t);
size_t (*write)(Vio*, const uchar *, size_t);
int (*timeout)(Vio*, uint, my_bool);
int (*viokeepalive)(Vio*, my_bool);
int (*fastsend)(Vio*);
my_bool (*peer_addr)(Vio*, char *, uint16*, size_t);
void (*in_addr)(Vio*, struct sockaddr_storage*);
my_bool (*should_retry)(Vio*);
my_bool (*was_timeout)(Vio*);
/*
vioshutdown is resposnible to shutdown/close the channel, so that no
further communications can take place, however any related buffers,
descriptors, handles can remain valid after a shutdown.
*/
int (*vioshutdown)(Vio*);
my_bool (*is_connected)(Vio*);
my_bool (*has_data) (Vio*);
int (*io_wait)(Vio*, enum enum_vio_io_event, int);
my_bool (*connect)(Vio*, struct sockaddr *, socklen_t, int);
};
#endif
#endif /* vio_violite_h_ */
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