auipc.c File Reference

#include <Ipc/auipc.h>
#include <Fs/Dev/devhw.h>
#include <Fs/Dev/devfs.h>
#include <Fs/vfs.h>
#include <Cred/group.h>
#include <Mm/kmalloc.h>
#include <Drivers/uart.h>
#include <Hal/AA64/aa64lowlevel.h>
#include <Hal/AA64/sched.h>
#include <Serv/sysserv.h>
#include <auipc.h>
#include <string.h>
#include <_null.h>

Include dependency graph for auipc.c:

Classes
struct	Endpoint
struct	Call

Macros
#define	MAX_EP   16
#define	MAX_CALLS   32
#define	EP_QUEUE   8

Enumerations
enum	{   CS_FREE = 0 , CS_QUEUED , CS_SERVING , CS_DONE ,   CS_FAILED , CS_ABANDONED }

Functions
void	AuIpcProcessGone (AuProcess *proc)
	AuIpcProcessGone – a process is being reaped: tear down its endpoints (failing every call waiting on them) and cancel the calls it had in flight.
void	AuIpcInitialize (void)
	AuIpcInitialize – register /dev/ipc.
int	AuIpcKCallBegin (const char *name, int pid, int uid, int gid, const void *req, uint32_t len, int32_t *call_id)
int	AuIpcKCallPoll (int32_t call_id, void *out, uint32_t cap, uint32_t *outlen, int32_t *server_status)
void	AuIpcKCallAbandon (int32_t call_id)

Macro Definition Documentation

EP_QUEUE

#define EP_QUEUE   8

MAX_CALLS

#define MAX_CALLS   32

MAX_EP

#define MAX_EP   16

auipc.c – generic kernel IPC (see BaseHdr/auipc.h).

All state lives in two small fixed tables guarded by masking interrupts: the kernel is single-CPU here and no operation here blocks while holding them. A sleeping operation checks its condition and goes to sleep with interrupts masked, so a wake-up cannot slip in between (same rule as /dev/hwdev IRQ_WAIT).

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
CS_FREE
CS_QUEUED
CS_SERVING
CS_DONE
CS_FAILED
CS_ABANDONED

Function Documentation

AuIpcInitialize()

void AuIpcInitialize

(

void

)

AuIpcInitialize – register /dev/ipc.

AuIpcKCallAbandon()

void AuIpcKCallAbandon

(

int32_t

call_id

)

AuIpcKCallBegin()

int AuIpcKCallBegin	(	const char *	name,
		int	pid,
		int	uid,
		int	gid,
		const void *	req,
		uint32_t	len,
		int32_t *	call_id
	)

AuIpcKCallPoll()

int AuIpcKCallPoll	(	int32_t	call_id,
		void *	out,
		uint32_t	cap,
		uint32_t *	outlen,
		int32_t *	server_status
	)

AuIpcProcessGone()

void AuIpcProcessGone

(

AuProcess *

proc

)

AuIpcProcessGone – a process is being reaped: tear down its endpoints (failing every call waiting on them) and cancel the calls it had in flight.