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/* adapted from violite.h from mysql 5.0.51 and many others */ |
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/* all modifications public domain */ |
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/* Copyright (C) 2000 MySQL AB |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; version 2 of the License. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ |
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|
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/* |
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* Vio Lite. |
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* Purpose: include file for Vio that will work with C and C++ |
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*/ |
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|
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#ifndef vio_violite_h_ |
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#define vio_violite_h_ |
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|
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/* Simple vio interface in C; The functions are implemented in violite.c */ |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif /* __cplusplus */ |
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|
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#if MYSQL_VERSION_ID < 50100 |
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typedef I8 *xgptr; |
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typedef I8 *const cxgptr; |
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typedef int xlen; |
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#else |
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typedef U8 *xgptr; |
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typedef const U8 *cxgptr; |
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typedef size_t xlen; |
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#endif |
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|
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enum enum_vio_type |
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{ |
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VIO_CLOSED, VIO_TYPE_TCPIP, VIO_TYPE_SOCKET, VIO_TYPE_NAMEDPIPE, |
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VIO_TYPE_SSL, VIO_TYPE_SHARED_MEMORY |
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}; |
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|
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|
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#define VIO_LOCALHOST 1 /* a localhost connection */ |
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#define VIO_BUFFERED_READ 2 /* use buffered read */ |
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#define VIO_READ_BUFFER_SIZE 16384 /* size of read buffer */ |
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|
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Vio* vio_new(my_socket sd, enum enum_vio_type type, uint flags); |
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#ifdef __WIN__ |
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Vio* vio_new_win32pipe(HANDLE hPipe); |
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Vio* vio_new_win32shared_memory(NET *net,HANDLE handle_file_map, |
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HANDLE handle_map, |
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HANDLE event_server_wrote, |
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HANDLE event_server_read, |
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HANDLE event_client_wrote, |
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HANDLE event_client_read, |
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HANDLE event_conn_closed); |
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xlen vio_read_pipe(Vio *vio, xgptr buf, xlen size); |
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xlen vio_write_pipe(Vio *vio, xcgptr buf, xlen size); |
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xlen vio_close_pipe(Vio * vio); |
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#else |
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#define HANDLE void * |
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#endif /* __WIN__ */ |
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|
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void vio_delete(Vio* vio); |
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int vio_close(Vio* vio); |
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void vio_reset(Vio* vio, enum enum_vio_type type, |
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my_socket sd, HANDLE hPipe, uint flags); |
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xlen vio_read(Vio *vio, xgptr buf, xlen size); |
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xlen vio_read_buff(Vio *vio, xgptr buf, xlen size); |
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xlen vio_write(Vio *vio, cxgptr buf, xlen size); |
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int vio_blocking(Vio *vio, my_bool onoff, my_bool *old_mode); |
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my_bool vio_is_blocking(Vio *vio); |
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/* setsockopt TCP_NODELAY at IPPROTO_TCP level, when possible */ |
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int vio_fastsend(Vio *vio); |
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/* setsockopt SO_KEEPALIVE at SOL_SOCKET level, when possible */ |
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int vio_keepalive(Vio *vio, my_bool onoff); |
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/* Whenever we should retry the last read/write operation. */ |
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my_bool vio_should_retry(Vio *vio); |
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/* Check that operation was timed out */ |
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my_bool vio_was_interrupted(Vio *vio); |
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/* Short text description of the socket for those, who are curious.. */ |
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const char* vio_description(Vio *vio); |
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/* Return the type of the connection */ |
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enum enum_vio_type vio_type(Vio* vio); |
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/* Return last error number */ |
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int vio_errno(Vio*vio); |
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/* Get socket number */ |
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my_socket vio_fd(Vio*vio); |
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/* Remote peer's address and name in text form */ |
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my_bool vio_peer_addr(Vio* vio, char *buf, uint16 *port); |
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/* Remotes in_addr */ |
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void vio_in_addr(Vio *vio, struct in_addr *in); |
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my_bool vio_poll_read(Vio *vio,uint timeout); |
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|
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void vio_end(void); |
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|
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#if !defined(DONT_MAP_VIO) |
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#define vio_delete(vio) (vio)->viodelete(vio) |
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#define vio_errno(vio) (vio)->vioerrno(vio) |
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#define vio_read(vio, buf, size) ((vio)->read)(vio,buf,size) |
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#define vio_write(vio, buf, size) ((vio)->write)(vio, buf, size) |
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#define vio_blocking(vio, set_blocking_mode, old_mode)\ |
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(vio)->vioblocking(vio, set_blocking_mode, old_mode) |
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#define vio_is_blocking(vio) (vio)->is_blocking(vio) |
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#define vio_fastsend(vio) (vio)->fastsend(vio) |
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#define vio_keepalive(vio, set_keep_alive) (vio)->viokeepalive(vio, set_keep_alive) |
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#define vio_should_retry(vio) (vio)->should_retry(vio) |
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#define vio_was_interrupted(vio) (vio)->was_interrupted(vio) |
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#define vio_close(vio) ((vio)->vioclose)(vio) |
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#define vio_peer_addr(vio, buf, prt) (vio)->peer_addr(vio, buf, prt) |
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#define vio_in_addr(vio, in) (vio)->in_addr(vio, in) |
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#define vio_timeout(vio, which, seconds) (vio)->timeout(vio, which, seconds) |
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#endif /* !defined(DONT_MAP_VIO) */ |
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|
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/* This enumerator is used in parser - should be always visible */ |
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enum SSL_type |
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{ |
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SSL_TYPE_NOT_SPECIFIED= -1, |
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SSL_TYPE_NONE, |
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SSL_TYPE_ANY, |
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SSL_TYPE_X509, |
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SSL_TYPE_SPECIFIED |
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}; |
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|
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typedef unsigned char uchar; |
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|
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/* HFTODO - hide this if we don't want client in embedded server */ |
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/* This structure is for every connection on both sides */ |
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#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100010 |
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|
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#define DESC_IS_PTR 1 |
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|
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struct st_vio |
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{ |
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my_socket sd; /* my_socket - real or imaginary */ |
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void *m_psi; |
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my_bool localhost; /* Are we from localhost? */ |
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int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */ |
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struct sockaddr_storage local; /* Local internet address */ |
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struct sockaddr_storage remote; /* Remote internet address */ |
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int addrLen; /* Length of remote address */ |
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enum enum_vio_type type; /* Type of connection */ |
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const char *desc; /* String description */ |
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char *read_buffer; /* buffer for vio_read_buff */ |
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char *read_pos; /* start of unfetched data in the |
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read buffer */ |
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char *read_end; /* end of unfetched data */ |
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struct mysql_async_context *async_context; /* For non-blocking API */ |
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int read_timeout; /* Timeout value (ms) for read ops. */ |
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int write_timeout; /* Timeout value (ms) for write ops. */ |
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/* function pointers. They are similar for socket/SSL/whatever */ |
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void (*viodelete)(Vio*); |
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int (*vioerrno)(Vio*); |
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size_t (*read)(Vio*, uchar *, size_t); |
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size_t (*write)(Vio*, const uchar *, size_t); |
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int (*timeout)(Vio*, uint, my_bool); |
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int (*vioblocking)(Vio*, my_bool, my_bool *); |
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my_bool (*is_blocking)(Vio*); |
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int (*viokeepalive)(Vio*, my_bool); |
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int (*fastsend)(Vio*); |
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my_bool (*peer_addr)(Vio*, char *, uint16*, size_t); |
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void (*in_addr)(Vio*, struct sockaddr_storage*); |
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my_bool (*should_retry)(Vio*); |
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my_bool (*was_timeout)(Vio*); |
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int (*vioclose)(Vio*); |
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my_bool (*is_connected)(Vio*); |
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int (*shutdown)(Vio *, int); |
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my_bool (*has_data) (Vio*); |
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}; |
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|
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#elif MYSQL_VERSION_ID < 50500 |
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|
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struct st_vio |
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{ |
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my_socket sd; /* my_socket - real or imaginary */ |
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HANDLE hPipe; |
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my_bool localhost; /* Are we from localhost? */ |
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int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */ |
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struct sockaddr_in local; /* Local internet address */ |
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struct sockaddr_in remote; /* Remote internet address */ |
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enum enum_vio_type type; /* Type of connection */ |
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char desc[30]; /* String description */ |
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char *read_buffer; /* buffer for vio_read_buff */ |
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char *read_pos; /* start of unfetched data in the |
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read buffer */ |
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char *read_end; /* end of unfetched data */ |
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/* function pointers. They are similar for socket/SSL/whatever */ |
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void (*viodelete)(Vio*); |
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int (*vioerrno)(Vio*); |
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xlen (*read)(Vio*, xgptr, xlen); |
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xlen (*write)(Vio*, cxgptr, xlen); |
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int (*vioblocking)(Vio*, my_bool, my_bool *); |
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my_bool (*is_blocking)(Vio*); |
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int (*viokeepalive)(Vio*, my_bool); |
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int (*fastsend)(Vio*); |
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my_bool (*peer_addr)(Vio*, char *, uint16*); |
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void (*in_addr)(Vio*, struct in_addr*); |
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my_bool (*should_retry)(Vio*); |
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my_bool (*was_interrupted)(Vio*); |
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int (*vioclose)(Vio*); |
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void (*timeout)(Vio*, unsigned int which, unsigned int timeout); |
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}; |
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|
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#elif MYSQL_VERSION_ID < 50600 |
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|
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struct st_vio |
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{ |
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my_socket sd; /* my_socket - real or imaginary */ |
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HANDLE hPipe; |
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my_bool localhost; /* Are we from localhost? */ |
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int fcntl_mode; /* Buffered fcntl(sd,F_GETFL) */ |
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struct sockaddr_storage local; /* Local internet address */ |
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struct sockaddr_storage remote; /* Remote internet address */ |
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int addrLen; /* Length of remote address */ |
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enum enum_vio_type type; /* Type of connection */ |
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char desc[30]; /* String description */ |
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char *read_buffer; /* buffer for vio_read_buff */ |
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char *read_pos; /* start of unfetched data in the |
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read buffer */ |
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char *read_end; /* end of unfetched data */ |
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/* function pointers. They are similar for socket/SSL/whatever */ |
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void (*viodelete)(Vio*); |
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int (*vioerrno)(Vio*); |
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size_t (*read)(Vio*, unsigned char *, size_t); |
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size_t (*write)(Vio*, const unsigned char *, size_t); |
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int (*vioblocking)(Vio*, my_bool, my_bool *); |
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my_bool (*is_blocking)(Vio*); |
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int (*viokeepalive)(Vio*, my_bool); |
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int (*fastsend)(Vio*); |
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my_bool (*peer_addr)(Vio*, char *, uint16*, size_t); |
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void (*in_addr)(Vio*, struct sockaddr_storage*); |
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my_bool (*should_retry)(Vio*); |
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my_bool (*was_interrupted)(Vio*); |
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int (*vioclose)(Vio*); |
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void (*timeout)(Vio*, unsigned int which, unsigned int timeout); |
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my_bool (*poll_read)(Vio *vio, uint timeout); |
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my_bool (*is_connected)(Vio*); |
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my_bool (*has_data) (Vio*); |
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}; |
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|
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#else |
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|
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/* this is not supposed to work, but it's a start |
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* one needs to look into MYSQL_SOCKET, missing |
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* vioblocking and this io_wait stuff, at the least. */ |
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|
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/** |
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VIO I/O events. |
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*/ |
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enum enum_vio_io_event |
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{ |
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VIO_IO_EVENT_READ, |
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VIO_IO_EVENT_WRITE, |
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VIO_IO_EVENT_CONNECT |
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}; |
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|
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struct st_vio |
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{ |
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MYSQL_SOCKET mysql_socket; /* Instrumented socket */ |
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my_bool localhost; /* Are we from localhost? */ |
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struct sockaddr_storage local; /* Local internet address */ |
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struct sockaddr_storage remote; /* Remote internet address */ |
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int addrLen; /* Length of remote address */ |
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enum enum_vio_type type; /* Type of connection */ |
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my_bool inactive; /* Connection inactive (has been shutdown) */ |
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char desc[30]; /* Description string. This |
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member MUST NOT be |
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used directly, but only |
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via function |
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"vio_description" */ |
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char *read_buffer; /* buffer for vio_read_buff */ |
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char *read_pos; /* start of unfetched data in the |
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read buffer */ |
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char *read_end; /* end of unfetched data */ |
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int read_timeout; /* Timeout value (ms) for read ops. */ |
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int write_timeout; /* Timeout value (ms) for write ops. */ |
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|
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/* |
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VIO vtable interface to be implemented by VIO's like SSL, Socket, |
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Named Pipe, etc. |
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*/ |
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|
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/* |
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viodelete is responsible for cleaning up the VIO object by freeing |
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internal buffers, closing descriptors, handles. |
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*/ |
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void (*viodelete)(Vio*); |
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int (*vioerrno)(Vio*); |
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size_t (*read)(Vio*, uchar *, size_t); |
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size_t (*write)(Vio*, const uchar *, size_t); |
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int (*timeout)(Vio*, uint, my_bool); |
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int (*viokeepalive)(Vio*, my_bool); |
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int (*fastsend)(Vio*); |
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my_bool (*peer_addr)(Vio*, char *, uint16*, size_t); |
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void (*in_addr)(Vio*, struct sockaddr_storage*); |
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my_bool (*should_retry)(Vio*); |
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my_bool (*was_timeout)(Vio*); |
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/* |
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vioshutdown is resposnible to shutdown/close the channel, so that no |
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further communications can take place, however any related buffers, |
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descriptors, handles can remain valid after a shutdown. |
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*/ |
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int (*vioshutdown)(Vio*); |
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my_bool (*is_connected)(Vio*); |
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my_bool (*has_data) (Vio*); |
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int (*io_wait)(Vio*, enum enum_vio_io_event, int); |
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my_bool (*connect)(Vio*, struct sockaddr *, socklen_t, int); |
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}; |
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|
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#endif |
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|
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#endif /* vio_violite_h_ */ |
