このコードをコンパイルしようとすると、「... への未定義の参照」というコンパイラ エラーが発生し続けます。何が起こっているのかわかりません。「.h」ファイルを参照する限り、「.c」ファイルへの参照を含める必要はないと言われました。
私の端末コマンド:gcc Main.c semaphore.o -L. -lst -o test
/tmp/ccGSIjXz.o: In function `main':
HW3.c:(.text+0x15): undefined reference to `init_buffer'
HW3.c:(.text+0x26): undefined reference to `init_buffer'
HW3.c:(.text+0x37): undefined reference to `init_buffer'
/tmp/ccGSIjXz.o: In function `Thread1':
HW3.c:(.text+0x159): undefined reference to `c_deposit'
/tmp/ccGSIjXz.o: In function `Thread2':
HW3.c:(.text+0x18c): undefined reference to `c_remove'
HW3.c:(.text+0x1b9): undefined reference to `c_deposit'
/tmp/ccGSIjXz.o: In function `Thread3':
HW3.c:(.text+0x1e8): undefined reference to `c_remove'
HW3.c:(.text+0x206): undefined reference to `c_remove'
HW3.c:(.text+0x21a): undefined reference to `c_remove'
HW3.c:(.text+0x238): undefined reference to `c_deposit'
HW3.c:(.text+0x252): undefined reference to `c_deposit'
/tmp/ccGSIjXz.o: In function `Thread4':
HW3.c:(.text+0x28c): undefined reference to `c_remove'
collect2: ld returned 1 exit status
コードは次のとおりです。
Main.c:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "st.h"
#include "buffer.h"
#define MAX_CHARS 81
#define BUFF_SIZE 12
#define NULL_CHAR
typedef struct {
}ThreadInit;
static buffer *buffer1;
static buffer *buffer2;
static buffer *buffer3;
void *Thread1();
void *Thread2();
void *Thread3();
void *Thread4();
int main(int argc, char const *argv[])
{
buffer1=init_buffer(BUFF_SIZE);
buffer2=init_buffer(BUFF_SIZE);
buffer3=init_buffer(BUFF_SIZE);
ThreadInit thread1={};
ThreadInit thread2={};
ThreadInit thread3={};
ThreadInit thread4={};
if (st_thread_create(Thread1(), &thread1, 0, 0) == NULL) {
perror("st_thread_create failed for thread 1");
exit(EXIT_FAILURE);
}
if (st_thread_create(Thread2(), &thread2, 0, 0) == NULL) {
perror("st_thread_create failed for thread 2");
exit(EXIT_FAILURE);
}
if (st_thread_create(Thread3(), &thread3, 0, 0) == NULL) {
perror("st_thread_create failed for thread 3");
exit(EXIT_FAILURE);
}
if (st_thread_create(Thread4(), &thread4, 0, 0) == NULL) {
perror("st_thread_create failed for thread 4");
exit(EXIT_FAILURE);
}
return 0;
}
void *Thread1()
{
int c;
while (1)
{
c=fgetc(stdin);
c_deposit(buffer1,c);
if(c==EOF)
{
break;
}
}
st_thread_exit(NULL);
return NULL;
}
void *Thread2(void *state)
{
int c;
while(1)
{
c=c_remove(buffer1);
if(c==EOF)
{
break;
}
if(c=='\n')
{
c=' ';
}
c_deposit(buffer2,c);
}
st_thread_exit(NULL);
return NULL;
}
void *Thread3(void *state)
{
int c;
while(1)
{
c=c_remove(buffer2);
if(c==EOF)
{
break;
}
if(c=='*' && c_remove(buffer2)=='*')
{
c_remove(buffer2);
c='^';
c_deposit(buffer3,c);
}
else
{
c_deposit(buffer3,c);
}
}
st_thread_exit(NULL);
return NULL;
}
void *Thread4(void *state)
{
int counter=0;
int c;
char output[MAX_CHARS];
output[MAX_CHARS-1]='\0';
while(1)
{
c=c_remove(buffer3);
if(c==EOF)
{
break;
}
else
{
output[counter]=c;
if(counter==80)
{
printf("%s",output);
counter=-1;
memset(output,'\0',BUFF_SIZE);
}
counter++;
}
}
st_thread_exit(NULL);
return NULL;
}
Buffer.c:
#include <stdio.h>
#include <stdlib.h>
#include "semaphore.h"
#include "buffer.h"
buffer *init_buffer(int size)
{
buffer *new_Buffer;
new_Buffer=malloc((sizeof(buffer)));
createSem(new_Buffer->emptyBuffer, size);
new_Buffer->emptyBuffer=malloc(sizeof(semaphore));
createSem(new_Buffer->fullBuffer, 0);
new_Buffer->fullBuffer=malloc(sizeof(semaphore));
new_Buffer->chars=malloc(sizeof(char)*size);
new_Buffer->size=size;
new_Buffer->nextIn=0;
new_Buffer->nextOut=0;
return new_Buffer;
}
void c_deposit(buffer *buffer, char c)
{
down(buffer->emptyBuffer);
buffer->chars[buffer->nextIn]=c;
buffer->nextIn=(buffer->nextIn+1)%buffer->size;
up(buffer->fullBuffer);
}
int c_remove(buffer *buffer)
{
int c;
down(buffer->fullBuffer);
c=buffer->chars[buffer->nextOut];
buffer->nextOut=(buffer->nextOut+1)%buffer->size;
up(buffer->emptyBuffer);
return c;
}
buffer.h:
#include <stdio.h>
#include "semaphore.h"
typedef struct{
semaphore emptyBuffer;
semaphore fullBuffer;
int nextIn;
int nextOut;
int size;
char *chars;
}buffer;
void c_deposit(buffer *buffer, char c);
int c_remove(buffer *buffer);
buffer *init_buffer(int size);