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Update imsg.

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This commit is contained in:
Nicholas Marriott
2024-01-17 09:41:53 +00:00
parent 001e26d0bb
commit 66369416fc
3 changed files with 717 additions and 138 deletions
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75
compat/imsg.h
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@ -1,6 +1,7 @@
/* $OpenBSD: imsg.h,v 1.5 2019/01/20 02:50:03 bcook Exp $ */
/* $OpenBSD: imsg.h,v 1.8 2023/12/12 15:47:41 claudio Exp $ */
/*
* Copyright (c) 2023 Claudio Jeker <claudio@openbsd.org>
* Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
* Copyright (c) 2006, 2007, 2008 Reyk Floeter <reyk@openbsd.org>
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@ -21,7 +22,7 @@
#ifndef _IMSG_H_
#define _IMSG_H_
#include <stdint.h>
#include <sys/types.h>
#define IBUF_READ_SIZE 65535
#define IMSG_HEADER_SIZE sizeof(struct imsg_hdr)
@ -49,11 +50,7 @@ struct ibuf_read {
size_t wpos;
};
struct imsg_fd {
TAILQ_ENTRY(imsg_fd) entry;
int fd;
};
struct imsg_fd;
struct imsgbuf {
TAILQ_HEAD(, imsg_fd) fds;
struct ibuf_read r;
@ -76,35 +73,83 @@ struct imsg {
struct imsg_hdr hdr;
int fd;
void *data;
struct ibuf *buf;
};
struct iovec;
/* buffer.c */
/* imsg-buffer.c */
struct ibuf *ibuf_open(size_t);
struct ibuf *ibuf_dynamic(size_t, size_t);
int ibuf_add(struct ibuf *, const void *, size_t);
int ibuf_add_buf(struct ibuf *, const struct ibuf *);
int ibuf_add_ibuf(struct ibuf *, const struct ibuf *);
int ibuf_add_zero(struct ibuf *, size_t);
int ibuf_add_n8(struct ibuf *, uint64_t);
int ibuf_add_n16(struct ibuf *, uint64_t);
int ibuf_add_n32(struct ibuf *, uint64_t);
int ibuf_add_n64(struct ibuf *, uint64_t);
int ibuf_add_h16(struct ibuf *, uint64_t);
int ibuf_add_h32(struct ibuf *, uint64_t);
int ibuf_add_h64(struct ibuf *, uint64_t);
void *ibuf_reserve(struct ibuf *, size_t);
void *ibuf_seek(struct ibuf *, size_t, size_t);
size_t ibuf_size(struct ibuf *);
size_t ibuf_left(struct ibuf *);
int ibuf_set(struct ibuf *, size_t, const void *, size_t);
int ibuf_set_n8(struct ibuf *, size_t, uint64_t);
int ibuf_set_n16(struct ibuf *, size_t, uint64_t);
int ibuf_set_n32(struct ibuf *, size_t, uint64_t);
int ibuf_set_n64(struct ibuf *, size_t, uint64_t);
int ibuf_set_h16(struct ibuf *, size_t, uint64_t);
int ibuf_set_h32(struct ibuf *, size_t, uint64_t);
int ibuf_set_h64(struct ibuf *, size_t, uint64_t);
void *ibuf_data(const struct ibuf *);
size_t ibuf_size(const struct ibuf *);
size_t ibuf_left(const struct ibuf *);
int ibuf_truncate(struct ibuf *, size_t);
void ibuf_rewind(struct ibuf *);
void ibuf_close(struct msgbuf *, struct ibuf *);
int ibuf_write(struct msgbuf *);
void ibuf_from_buffer(struct ibuf *, void *, size_t);
void ibuf_from_ibuf(struct ibuf *, const struct ibuf *);
int ibuf_get(struct ibuf *, void *, size_t);
int ibuf_get_ibuf(struct ibuf *, size_t, struct ibuf *);
int ibuf_get_n8(struct ibuf *, uint8_t *);
int ibuf_get_n16(struct ibuf *, uint16_t *);
int ibuf_get_n32(struct ibuf *, uint32_t *);
int ibuf_get_n64(struct ibuf *, uint64_t *);
int ibuf_get_h16(struct ibuf *, uint16_t *);
int ibuf_get_h32(struct ibuf *, uint32_t *);
int ibuf_get_h64(struct ibuf *, uint64_t *);
int ibuf_skip(struct ibuf *, size_t);
void ibuf_free(struct ibuf *);
int ibuf_fd_avail(struct ibuf *);
int ibuf_fd_get(struct ibuf *);
void ibuf_fd_set(struct ibuf *, int);
int ibuf_write(struct msgbuf *);
void msgbuf_init(struct msgbuf *);
void msgbuf_clear(struct msgbuf *);
uint32_t msgbuf_queuelen(struct msgbuf *);
int msgbuf_write(struct msgbuf *);
void msgbuf_drain(struct msgbuf *, size_t);
/* imsg.c */
void imsg_init(struct imsgbuf *, int);
ssize_t imsg_read(struct imsgbuf *);
ssize_t imsg_get(struct imsgbuf *, struct imsg *);
int imsg_get_ibuf(struct imsg *, struct ibuf *);
int imsg_get_data(struct imsg *, void *, size_t);
int imsg_get_fd(struct imsg *);
uint32_t imsg_get_id(struct imsg *);
size_t imsg_get_len(struct imsg *);
pid_t imsg_get_pid(struct imsg *);
uint32_t imsg_get_type(struct imsg *);
int imsg_forward(struct imsgbuf *, struct imsg *);
int imsg_compose(struct imsgbuf *, uint32_t, uint32_t, pid_t, int,
const void *, uint16_t);
const void *, size_t);
int imsg_composev(struct imsgbuf *, uint32_t, uint32_t, pid_t, int,
const struct iovec *, int);
struct ibuf *imsg_create(struct imsgbuf *, uint32_t, uint32_t, pid_t, uint16_t);
int imsg_add(struct ibuf *, const void *, uint16_t);
int imsg_compose_ibuf(struct imsgbuf *, uint32_t, uint32_t, pid_t,
struct ibuf *);
struct ibuf *imsg_create(struct imsgbuf *, uint32_t, uint32_t, pid_t, size_t);
int imsg_add(struct ibuf *, const void *, size_t);
void imsg_close(struct imsgbuf *, struct ibuf *);
void imsg_free(struct imsg *);
int imsg_flush(struct imsgbuf *);