292 lines
6.7 KiB
C
292 lines
6.7 KiB
C
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#ifndef _STIO_H_
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#define _STIO_H_
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/* TODO: remove these headers */
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#include <sys/socket.h>
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typedef signed char stio_int8_t;
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typedef unsigned char stio_uint8_t;
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typedef unsigned long stio_size_t;
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#define STIO_MEMSET(dst,byte,count) memset(dst,byte,count)
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#define STIO_ASSERT assert
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#define STIO_SIZEOF(x) sizeof(x)
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#define STIO_COUNTOF(x) (sizeof(x) / sizeof(x[0]))
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#define STIO_NULL ((void*)0)
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typedef struct stio_mmgr_t stio_mmgr_t;
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typedef void* (*stio_mmgr_alloc_t) (stio_mmgr_t* mmgr, stio_size_t size);
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typedef void (*stio_mmgr_free_t) (stio_mmgr_t* mmgr, void* ptr);
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struct stio_mmgr_t
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{
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stio_mmgr_alloc_t alloc;
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stio_mmgr_free_t free;
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void* ctx;
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};
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#define STIO_MMGR_ALLOC(mmgr,size) (mmgr)->alloc(mmgr,size)
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#define STIO_MMGR_FREE(mmgr,ptr) (mmgr)->free(mmgr,ptr)
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struct stio_sckadr_t
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{
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int family;
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stio_uint8_t data[64]; /* TODO: use the actual sockaddr size */
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};
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typedef struct stio_sckadr_t stio_sckadr_t;
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#if defined(_WIN32)
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# define STIO_IOCP_KEY 1
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typedef int stio_scklen_t;
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typedef SOCKET stio_sckhnd_t;
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# define STIO_SCKHND_INVALID (INVALID_SOCKET)
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typedef HANDLE stio_syshnd_t;
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#else
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typedef socklen_t stio_scklen_t;
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typedef int stio_sckhnd_t;
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# define STIO_SCKHND_INVALID (-1)
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typedef int stio_syshnd_t;
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#endif
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/* ------------------------------------------------------------------------- */
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typedef struct stio_t stio_t;
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typedef struct stio_dev_t stio_dev_t;
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typedef struct stio_dev_mth_t stio_dev_mth_t;
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typedef struct stio_dev_evcb_t stio_dev_evcb_t;
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typedef unsigned int stio_len_t; /* TODO: remove it? */
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enum stio_errnum_t
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{
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STIO_ENOERR,
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STIO_ENOMEM,
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STIO_EINVAL,
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STIO_ENOSUP, /* not supported */
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STIO_EDEVMAKE
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};
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typedef enum stio_errnum_t stio_errnum_t;
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struct stio_dev_mth_t
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{
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/* --------------------------------------------------------------------------------------------- */
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int (*make) (stio_dev_t* dev, void* ctx); /* mandatory. called in stix_makedev() */
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void (*kill) (stio_dev_t* dev); /* mandatory. called in stix_killdev(). called in stix_makedev() upon failure after make() success */
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stio_syshnd_t (*getsyshnd) (stio_dev_t* dev); /* mandatory. called in stix_makedev() after successful make() */
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int (*ioctl) (stio_dev_t* dev, int cmd, void* arg);
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/* --------------------------------------------------------------------------------------------- */
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int (*recv) (stio_dev_t* dev, void* data, stio_len_t* len);
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/* --------------------------------------------------------------------------------------------- */
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int (*send) (stio_dev_t* dev, const void* data, stio_len_t* len);
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/* --------------------------------------------------------------------------------------------- */
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};
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struct stio_dev_evcb_t
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{
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int (*ready) (stio_dev_t* dev, int events);
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/*int (*on_error) (stio_dev_t* dev);
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int (*on_hangup) (stio_dev_t* dev);*/
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int (*on_recv) (stio_dev_t* dev, const void* data, stio_len_t len);
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int (*on_sent) (stio_dev_t* dev, const void* data, stio_len_t len);
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};
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#define STIO_DEV_HEADERS \
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stio_t* stio; \
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stio_dev_mth_t* mth; \
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stio_dev_evcb_t* evcb; \
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stio_dev_t* prev; \
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stio_dev_t* next
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struct stio_dev_t
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{
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STIO_DEV_HEADERS;
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};
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enum stio_dev_event_cmd_t
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{
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STIO_DEV_EVENT_ADD,
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STIO_DEV_EVENT_MOD,
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STIO_DEV_EVENT_DEL
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};
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typedef enum stio_dev_event_cmd_t stio_dev_event_cmd_t;
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enum stio_dev_event_flag_t
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{
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STIO_DEV_EVENT_IN = (1 << 0),
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STIO_DEV_EVENT_OUT = (1 << 1),
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STIO_DEV_EVENT_PRI = (1 << 2),
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STIO_DEV_EVENT_HUP = (1 << 3),
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STIO_DEV_EVENT_ERR = (1 << 4)
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};
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typedef enum stio_dev_event_flag_t stio_dev_event_flag_t;
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/* -------------------------------------------------------------------------- */
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enum stio_dev_tcp_ioctl_cmd_t
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{
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STIO_DEV_TCP_BIND,
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STIO_DEV_TCP_CONNECT,
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STIO_DEV_TCP_LISTEN
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};
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typedef enum stio_dev_tcp_ioctl_cmd_t stio_dev_tcp_ioctl_cmd_t;
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enum stio_dev_tcp_state_t
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{
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STIO_DEV_TCP_CONNECTING = (1 << 0),
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STIO_DEV_TCP_CONNECTED = (1 << 1),
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STIO_DEV_TCP_LISTENING = (1 << 2),
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STIO_DEV_TCP_ACCEPTED = (1 << 3)
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};
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typedef enum stio_dev_tcp_state_t stio_dev_tcp_state_t;
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typedef struct stio_dev_tcp_t stio_dev_tcp_t;
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typedef void (*stio_dev_tcp_on_connected_t) (stio_dev_tcp_t* dev);
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typedef void (*stio_dev_tcp_on_accepted_t) (stio_dev_tcp_t* dev, stio_dev_tcp_t* clidev);
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typedef void (*stio_dev_tcp_on_disconnected_t) (stio_dev_tcp_t* dev);
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struct stio_dev_tcp_t
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{
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STIO_DEV_HEADERS;
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stio_sckhnd_t sck;
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unsigned int state;
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/* peer address - valid if one of the followings is set:
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* STIO_DEV_TCP_ACCEPTED
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* STIO_DEV_TCP_CONNECTED
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* STIO_DEV_TCP_CONNECTING */
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stio_sckadr_t peer;
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/* parent tcp device. valid if STIO_DEV_TCP_ACCEPTED is set */
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stio_dev_tcp_t* parent;
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stio_dev_tcp_on_connected_t on_connected;
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stio_dev_tcp_on_disconnected_t on_disconnected;
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stio_dev_tcp_on_accepted_t on_accepted;
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};
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typedef struct stio_dev_tcp_bind_t stio_dev_tcp_bind_t;
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struct stio_dev_tcp_bind_t
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{
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int options; /* TODO: REUSEADDR , TRANSPARENT, etc or someting?? */
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stio_sckadr_t addr;
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/* TODO: add device name for BIND_TO_DEVICE */
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};
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typedef struct stio_dev_tcp_connect_t stio_dev_tcp_connect_t;
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struct stio_dev_tcp_connect_t
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{
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stio_sckadr_t addr;
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stio_dev_tcp_on_connected_t on_connected;
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stio_dev_tcp_on_disconnected_t on_disconnected;
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};
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typedef struct stio_dev_tcp_listen_t stio_dev_tcp_listen_t;
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struct stio_dev_tcp_listen_t
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{
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int backlogs;
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stio_dev_tcp_on_accepted_t on_accepted; /* optional, but new connections are dropped immediately without this */
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stio_dev_tcp_on_disconnected_t on_disconnected;
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};
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typedef struct stio_dev_tcp_accept_t stio_dev_tcp_accept_t;
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struct stio_dev_tcp_accept_t
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{
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stio_syshnd_t sck;
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stio_dev_tcp_t* parent;
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stio_sckadr_t peer;
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};
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/* -------------------------------------------------------------------------- */
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typedef struct stio_dev_udp_t stio_dev_udp_t;
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struct stio_dev_udp_t
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{
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STIO_DEV_HEADERS;
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stio_sckhnd_t sck;
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stio_sckadr_t peer;
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};
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/* -------------------------------------------------------------------------- */
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#ifdef __cplusplus
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extern "C" {
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#endif
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stio_t* stio_open (
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stio_mmgr_t* mmgr,
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stio_size_t xtnsize,
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stio_errnum_t* errnum
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);
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void stio_close (
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stio_t* stio
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);
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stio_dev_t* stio_makedev (
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stio_t* stio,
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stio_size_t dev_size,
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stio_dev_mth_t* dev_mth,
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stio_dev_evcb_t* dev_evcb,
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void* make_ctx
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);
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void stio_killdev (
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stio_t* stio,
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stio_dev_t* dev
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);
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stio_dev_tcp_t* stio_dev_tcp_make (
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stio_t* stio,
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stio_sckadr_t* addr
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);
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void stio_dev_tcp_kill (
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stio_dev_tcp_t* tcp
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);
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stio_dev_udp_t* stio_dev_udp_make (
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stio_t* stio,
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stio_sckadr_t* addr
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);
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void stio_dev_udp_kill (
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stio_dev_udp_t* udp
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
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