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https://github.com/VCMP-SqMod/SqMod.git
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140 lines
4.4 KiB
C
140 lines
4.4 KiB
C
#ifndef _ma_pvio_h_
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#define _ma_pvio_h_
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#define cio_defined
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#ifdef HAVE_TLS
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#include <ma_tls.h>
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#else
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#define MARIADB_TLS void
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#endif
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/* CONC-492: Allow to buuld plugins outside of MariaDB Connector/C
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source tree wnen ma_global.h was not included. */
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#if !defined(_global_h) && !defined(MY_GLOBAL_INCLUDED)
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typedef unsigned char uchar;
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#endif
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#define PVIO_SET_ERROR if (pvio->set_error) \
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pvio->set_error
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#define PVIO_READ_AHEAD_CACHE_SIZE 16384
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#define PVIO_READ_AHEAD_CACHE_MIN_SIZE 2048
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#define PVIO_EINTR_TRIES 2
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struct st_ma_pvio_methods;
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typedef struct st_ma_pvio_methods PVIO_METHODS;
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#define IS_PVIO_ASYNC(a) \
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((a)->mysql && (a)->mysql->options.extension && (a)->mysql->options.extension->async_context)
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#define IS_PVIO_ASYNC_ACTIVE(a) \
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(IS_PVIO_ASYNC(a)&& (a)->mysql->options.extension->async_context->active)
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#define IS_MYSQL_ASYNC(a) \
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((a)->options.extension && (a)->options.extension->async_context)
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#define IS_MYSQL_ASYNC_ACTIVE(a) \
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(IS_MYSQL_ASYNC(a)&& (a)->options.extension->async_context->active)
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enum enum_pvio_timeout {
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PVIO_CONNECT_TIMEOUT= 0,
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PVIO_READ_TIMEOUT,
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PVIO_WRITE_TIMEOUT
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};
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enum enum_pvio_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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enum enum_pvio_type {
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PVIO_TYPE_UNIXSOCKET= 0,
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PVIO_TYPE_SOCKET,
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PVIO_TYPE_NAMEDPIPE,
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PVIO_TYPE_SHAREDMEM,
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};
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enum enum_pvio_operation {
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PVIO_READ= 0,
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PVIO_WRITE=1
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};
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#define SHM_DEFAULT_NAME "MYSQL"
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struct st_pvio_callback;
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typedef struct st_pvio_callback {
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void (*callback)(MYSQL *mysql, uchar *buffer, size_t size);
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struct st_pvio_callback *next;
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} PVIO_CALLBACK;
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struct st_ma_pvio {
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void *data;
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/* read ahead cache */
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uchar *cache;
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uchar *cache_pos;
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size_t cache_size;
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enum enum_pvio_type type;
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int timeout[3];
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int ssl_type; /* todo: change to enum (ssl plugins) */
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MARIADB_TLS *ctls;
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MYSQL *mysql;
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PVIO_METHODS *methods;
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void (*set_error)(MYSQL *mysql, unsigned int error_nr, const char *sqlstate, const char *format, ...);
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void (*callback)(MARIADB_PVIO *pvio, my_bool is_read, const uchar *buffer, size_t length);
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};
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typedef struct st_ma_pvio_cinfo
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{
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const char *host;
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const char *unix_socket;
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int port;
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enum enum_pvio_type type;
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MYSQL *mysql;
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} MA_PVIO_CINFO;
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struct st_ma_pvio_methods
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{
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my_bool (*set_timeout)(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout);
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int (*get_timeout)(MARIADB_PVIO *pvio, enum enum_pvio_timeout type);
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ssize_t (*read)(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
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ssize_t (*async_read)(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
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ssize_t (*write)(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
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ssize_t (*async_write)(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
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int (*wait_io_or_timeout)(MARIADB_PVIO *pvio, my_bool is_read, int timeout);
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int (*blocking)(MARIADB_PVIO *pvio, my_bool value, my_bool *old_value);
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my_bool (*connect)(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo);
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my_bool (*close)(MARIADB_PVIO *pvio);
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int (*fast_send)(MARIADB_PVIO *pvio);
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int (*keepalive)(MARIADB_PVIO *pvio);
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my_bool (*get_handle)(MARIADB_PVIO *pvio, void *handle);
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my_bool (*is_blocking)(MARIADB_PVIO *pvio);
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my_bool (*is_alive)(MARIADB_PVIO *pvio);
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my_bool (*has_data)(MARIADB_PVIO *pvio, ssize_t *data_len);
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int(*shutdown)(MARIADB_PVIO *pvio);
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};
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/* Function prototypes */
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MARIADB_PVIO *ma_pvio_init(MA_PVIO_CINFO *cinfo);
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void ma_pvio_close(MARIADB_PVIO *pvio);
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ssize_t ma_pvio_cache_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
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ssize_t ma_pvio_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
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ssize_t ma_pvio_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
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int ma_pvio_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type);
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my_bool ma_pvio_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout);
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int ma_pvio_fast_send(MARIADB_PVIO *pvio);
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int ma_pvio_keepalive(MARIADB_PVIO *pvio);
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my_socket ma_pvio_get_socket(MARIADB_PVIO *pvio);
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my_bool ma_pvio_is_blocking(MARIADB_PVIO *pvio);
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my_bool ma_pvio_blocking(MARIADB_PVIO *pvio, my_bool block, my_bool *previous_mode);
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my_bool ma_pvio_is_blocking(MARIADB_PVIO *pvio);
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int ma_pvio_wait_io_or_timeout(MARIADB_PVIO *pvio, my_bool is_read, int timeout);
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my_bool ma_pvio_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo);
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my_bool ma_pvio_is_alive(MARIADB_PVIO *pvio);
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my_bool ma_pvio_get_handle(MARIADB_PVIO *pvio, void *handle);
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my_bool ma_pvio_has_data(MARIADB_PVIO *pvio, ssize_t *length);
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#endif /* _ma_pvio_h_ */
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