From 00127eab993911df24aeeb0bf5eee56259b29620 Mon Sep 17 00:00:00 2001
From: seantywork <seantywork@gmail.com>
Date: Wed, 19 Nov 2025 08:09:21 +0000
Subject: [PATCH] proc

---
 kproc/kproc.c       |  2 --
 kproc/kproc.h       |  1 +
 kproc/user/Makefile |  5 ++-
 kproc/user/user.c   | 74 ++++++++++++++++++++++++++++++++++++++++++++-
 4 files changed, 78 insertions(+), 4 deletions(-)

diff --git a/kproc/kproc.c b/kproc/kproc.c
index 8647557..0cd7a9d 100644
--- a/kproc/kproc.c
+++ b/kproc/kproc.c
@@ -16,8 +16,6 @@
 
 #include "kproc.h"
 
-#define DEVICE_NAME "kproc_f"
-
 static struct work_struct job;
 
 static int dev_major;
diff --git a/kproc/kproc.h b/kproc/kproc.h
index 0c7da2b..d11d559 100644
--- a/kproc/kproc.h
+++ b/kproc/kproc.h
@@ -1,6 +1,7 @@
 #ifndef _KPROC_H_
 #define _KPROC_H_
 
+#define DEVICE_NAME "kproc_f"
 #define KPROC_BUFF_LEN 128
 
 #endif
\ No newline at end of file
diff --git a/kproc/user/Makefile b/kproc/user/Makefile
index 18ffa8a..7716b82 100644
--- a/kproc/user/Makefile
+++ b/kproc/user/Makefile
@@ -1,4 +1,7 @@
+
+INCLUDES := -I../
+
 all:
-	gcc -g -o user.out user.c -lpthread
+	gcc -g $(INCLUDES) -o user.out user.c -lpthread
 clean:
 	rm -rf *.out *.o
\ No newline at end of file
diff --git a/kproc/user/user.c b/kproc/user/user.c
index 9009319..02fe7b2 100644
--- a/kproc/user/user.c
+++ b/kproc/user/user.c
@@ -2,9 +2,81 @@
 #include <stdlib.h>
 #include <string.h>
 #include <pthread.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <unistd.h>
 
-int main(){
+#include "kproc.h"
 
+FILE* fp = NULL;
+pthread_mutex_t mut;
+int keepalive = 1;
+
+void sig_hdl(int sig){
+    printf("SIG: %d\n", sig);
+    keepalive =0;
+}
+
+void* another_thread(void* varg){
+    while(keepalive){
+        pthread_mutex_lock(&mut);
+
+        pthread_mutex_unlock(&mut);
+        sleep(1);
+    }
+    pthread_exit(NULL);
+}
+
+int main(int argc, char** argv){
+    pthread_t tid;
+    int result = -1;
+    char fbuf[1024] = {0};
+    char* tbuf = NULL;
+    size_t rlen = 0;
+    int major = -1;
+    fp = fopen("/proc/devices", "r");
+    if(fp == NULL){
+        printf("failed to open proc devices\n");
+        return -1;
+    }
+    printf("devices:\n");
+    while(fgets(fbuf, 1024, fp)){
+        printf("%s", fbuf);
+        if((tbuf = strstr(fbuf, "loop")) != NULL){
+            tbuf -= 1;
+            *tbuf = 0;
+            tbuf -= 3;
+            printf("target major: %s\n", tbuf);
+            break;
+        }
+        memset(fbuf, 0, 1024 * sizeof(char));
+    }
+    fclose(fp);
+    if(result < 0){
+        printf("target not found\n");
+        return -1;
+    }
+    result = -1;
+    signal(SIGINT, sig_hdl);
+    fp = fopen(DEVICE_NAME, "r+");
+    if(fp == NULL){
+        printf("failed to open\n");
+        return -1;
+    }
+    pthread_mutex_init(&mut, NULL);
+    result = pthread_create(&tid, NULL, another_thread, NULL);
+    if(result < 0){
+        printf("failed to create thread\n");
+        return -1;
+    }
+    while(keepalive){
+        pthread_mutex_lock(&mut);
+
+
+        pthread_mutex_unlock(&mut);
+        sleep(1);
+    }
+    fclose(fp);
 
     return 0;
 }
\ No newline at end of file
-- 
2.43.0