为什么 CGo 不能识别我在头文件中声明的结构？

Question

我收到错误 "./test.h:10:3: error: unknown type name 'PROCESS'" 当我包含我的头文件时test.h 具有结构定义 PROCESS 作为我的 C Go Lang 应用程序的一部分。代码在 C 中编译没有问题所以我想我做错了一些非常简单的事情......

package main

// #include <sys/mman.h>
// #include <errno.h>
// #include <inttypes.h>
// #include <stdlib.h>
// #include "test.h"
import "C"

import (
    "fmt"
    _"unsafe"
  )


func main() {
    fmt.Println("Retrieving process list");

}

test.h的内容如下...

#include <sys/mman.h>
#include <errno.h>
#include <inttypes.h>
#include <stdlib.h>

struct PROCESS {
    char *name;
    int os_type;
    addr_t address;
    PROCESS *next;

    //fields we care about
    unsigned int uid;
    unsigned int gid;
    unsigned int is_root;
    unsigned int io_r;
    unsigned int io_wr;
    unsigned int io_sys_r;
    unsigned int io_sys_wr;
    unsigned int used_super;
    unsigned int is_k_thread;
    unsigned int cpus;
    unsigned long hw_rss;
    unsigned long vma_size;
    unsigned long map_count;
    unsigned long pages;
    unsigned long total_map;
    unsigned long min_flt;
    unsigned long mm_usrs;
    unsigned long nr_ptes;
    unsigned long nvcsw;

};

Answer 1

在 C 中（与 C++ 不同），struct 关键字不声明可以单独使用的类型名称；它需要使用 struct 关键字进行限定。类型是 struct PROCESS 而不是 PROCESS:

struct PROCESS 
{
    char* name ;
    int os_type ;
    addr_t address ;
    struct PROCESS* next ;   // The struct keyword is needed here
    ...

为什么 CGo 不能识别我在头文件中声明的结构？

Why doesn't CGo recognize my struct declared in a header file?

c

go

struct

cgo