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Classes
struct	ChainLink
	Main data structure for CCC nodes. More...

struct	DataBuf
	A convenience data structure for passing data chunks between nodes. More...

Macros
#define	OpStart 1

#define	OpSend 2

#define	OpStop 3

#define	OpEnd 4

#define	OpAbort 5

#define	CCC_Stopped (1 << 0)

#define	CCC_Ended (1 << 1)

#define	CCC_Aborted (1 << 2)

#define	FWD 1

#define	BCK 2

Typedefs
typedef struct ChainLink	ChainLink

typedef void(*	ChainFunction_t) (int Op, int Branch, int Dir, ChainLink Info, void Data1, void *Data2)

Functions
ChainLink *	a_Chain_new (void)
	Create and initialize a new chain-link.

ChainLink *	a_Chain_link_new (ChainLink *AInfo, ChainFunction_t AFunc, int Direction, ChainFunction_t BFunc, int AtoB_branch, int BtoA_branch)
	Create a new link from module A to module B.

void	a_Chain_unlink (ChainLink *Info, int Direction)
	Unlink a previously used link.

int	a_Chain_fcb (int Op, ChainLink Info, void Data1, void *Data2)
	Issue the forward callback of the 'Info' link.

int	a_Chain_bcb (int Op, ChainLink Info, void Data1, void *Data2)
	Issue the backward callback of the 'Info' link.

int	a_Chain_bfcb (int Op, ChainLink Info, void Data1, void *Data2)
	Issue the backward callback of the 'Info' link and then the forward callback (used for OpAbort and OpStop).

int	a_Chain_check (char FuncStr, int Op, int Branch, int Dir, ChainLink Info)
	Check whether the CCC is operative.

DataBuf *	a_Chain_dbuf_new (void *buf, int size, int code)
	Allocate and initialize a new DataBuf structure.

Macro Definition Documentation

◆ BCK

#define BCK 2

Definition at line 30 of file chain.h.

◆ CCC_Aborted

#define CCC_Aborted (1 << 2)

Definition at line 24 of file chain.h.

◆ CCC_Ended

#define CCC_Ended (1 << 1)

Definition at line 23 of file chain.h.

◆ CCC_Stopped

#define CCC_Stopped (1 << 0)

Definition at line 22 of file chain.h.

◆ FWD

#define FWD 1

Definition at line 29 of file chain.h.

◆ OpAbort

#define OpAbort 5

Definition at line 17 of file chain.h.

◆ OpEnd

#define OpEnd 4

Definition at line 16 of file chain.h.

◆ OpSend

#define OpSend 2

Definition at line 14 of file chain.h.

◆ OpStart

#define OpStart 1

Definition at line 13 of file chain.h.

◆ OpStop

#define OpStop 3

Definition at line 15 of file chain.h.

Typedef Documentation

◆ ChainFunction_t

typedef void(* ChainFunction_t) (int Op, int Branch, int Dir, ChainLink *Info, void *Data1, void *Data2)

Definition at line 33 of file chain.h.

◆ ChainLink

typedef struct ChainLink ChainLink

Definition at line 32 of file chain.h.

Function Documentation

◆ a_Chain_bcb()

int a_Chain_bcb	(	int	Op,
		ChainLink *	Info,
		void *	Data1,
		void *	Data2
	)

Issue the backward callback of the 'Info' link.

Returns: 1 if OK, 0 if not operative.

Definition at line 126 of file chain.c.

References ChainLink::Bcb, ChainLink::BcbBranch, ChainLink::BcbInfo, BCK, CCC_Aborted, CCC_Ended, ChainLink::Flags, OpAbort, and OpEnd.

Referenced by a_Capi_ccc(), a_Chain_bfcb(), a_Dpi_ccc(), a_Http_ccc(), Http_connect_tls(), and Http_send_query().

◆ a_Chain_bfcb()

int a_Chain_bfcb	(	int	Op,
		ChainLink *	Info,
		void *	Data1,
		void *	Data2
	)

Issue the backward callback of the 'Info' link and then the forward callback (used for OpAbort and OpStop).

Returns: 1 if OK, 0 if not operative.

Definition at line 150 of file chain.c.

References a_Chain_bcb(), a_Chain_fcb(), ChainLink::Flags, OpAbort, and OpEnd.

Referenced by a_Http_ccc(), a_Http_connect_done(), Http_connect_tls(), and Http_dns_cb().

◆ a_Chain_check()

int a_Chain_check	(	char *	FuncStr,
		int	Op,
		int	Branch,
		int	Dir,
		ChainLink *	Info
	)

Check whether the CCC is operative.

Also used to hook debug information.

Returns: 1 if ready to use, 0 if not operative.

Definition at line 186 of file chain.c.

References CCC_Aborted, CCC_Ended, Chain_debug_msg(), ChainLink::Flags, and MSG_WARN.

Referenced by a_Capi_ccc(), a_Dpi_ccc(), a_Http_ccc(), and a_IO_ccc().

◆ a_Chain_dbuf_new()

DataBuf * a_Chain_dbuf_new	(	void *	buf,
		int	size,
		int	code
	)

Allocate and initialize a new DataBuf structure.

Definition at line 171 of file chain.c.

References DataBuf::Buf, DataBuf::Code, dNew, and DataBuf::Size.

Referenced by a_Capi_dpi_send_data(), a_IO_ccc(), Capi_conn_resume(), Dpi_parse_token(), Http_connect_tls(), and Http_send_query().

◆ a_Chain_fcb()

int a_Chain_fcb	(	int	Op,
		ChainLink *	Info,
		void *	Data1,
		void *	Data2
	)

Issue the forward callback of the 'Info' link.

Returns: 1 if OK, 0 if not operative.

Definition at line 103 of file chain.c.

References CCC_Aborted, CCC_Ended, ChainLink::Fcb, ChainLink::FcbBranch, ChainLink::FcbInfo, ChainLink::Flags, FWD, OpAbort, and OpEnd.

Referenced by a_Chain_bfcb(), a_Dpi_ccc(), a_Http_ccc(), a_IO_ccc(), and Dpi_parse_token().

◆ a_Chain_link_new()

ChainLink * a_Chain_link_new	(	ChainLink *	AInfo,
		ChainFunction_t	AFunc,
		int	Direction,
		ChainFunction_t	BFunc,
		int	AtoB_branch,
		int	BtoA_branch
	)

Create a new link from module A to module B.

Parameters

Direction	tells whether to make a forward or backward link. The link from 'A' to 'B' has `Direction` direction. The main flow of information names the FWD direction.
AtoB_branch	branch on which 'B' receives communications from 'A'
BtoA_branch	branch on which 'A' receives communications from 'B'

Definition at line 55 of file chain.c.

References a_Chain_new(), ChainLink::Bcb, ChainLink::BcbBranch, ChainLink::BcbInfo, BCK, ChainLink::Fcb, ChainLink::FcbBranch, and ChainLink::FcbInfo.

Referenced by a_Capi_ccc(), a_Dpi_ccc(), and a_Http_ccc().

◆ a_Chain_new()

ChainLink * a_Chain_new ( void )

Create and initialize a new chain-link.

Definition at line 42 of file chain.c.

References dNew0.

Referenced by a_Capi_dpi_send_data(), a_Capi_open_url(), and a_Chain_link_new().

◆ a_Chain_unlink()

void a_Chain_unlink	(	ChainLink *	Info,
		int	Direction
	)

Unlink a previously used link.