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lib/communication.c

@@ -160,12 +160,19 @@ int srv_get_new_process (const struct service *srv, struct process *p)
 
     char *buf = NULL;
     size_t msize = 0;
-    int ret = file_read (srv->spath, &buf, &msize);
-    if (ret <= 0) {
+    int ret = 0;
+    while (ret == 0) {
+        ret = file_read (srv->spath, &buf, &msize);
+
+        if (ret < 0) {
             fprintf (stderr, "err: listening on %s\n", srv->spath);
             exit (1);
         } 
 
+    }
+    
+
+
     char *token = NULL, *saveptr = NULL;
     char *str = NULL;
     int i = 0;
@@ -194,7 +201,7 @@ int srv_get_new_process (const struct service *srv, struct process *p)
         free (buf);
     srv_process_gen (p, pid, index, version);
 
-    return 1;
+    return 0;
 }
 
 int srv_read (struct process *p, char ** buf, size_t * msize)

lib/communication.h

@@ -68,4 +68,6 @@ int app_write (struct process *, char * buf, size_t);
 int file_read (const char *path, char **buf, size_t *msize);
 int file_write (const char *path, const char *buf, size_t msize);
 
+//open, close, read, write
+
 #endif

lib/communication2.c

@@ -0,0 +1,36 @@
+#include "communication2.h"
+#include <stdio.h>
+#include <time.h>
+#include <errno.h>
+
+int srv_init (int argc, char **argv, char **env, struct service *srv, const char *sname, int (*cb)(int argc, char **argv, char **env, struct service *srv, const char *sname))
+{
+    if (srv == NULL)
+        return ER_PARAMS;
+
+    // TODO
+    //      use the argc, argv and env parameters
+    //      it will be useful to change some parameters transparently
+    //      ex: to get resources from other machines, choosing the
+    //          remote with environment variables
+
+    argc = argc;
+    argv = argv;
+    env = env;
+
+    // gets the service path, such as /tmp/<service>
+    memset (srv->spath, 0, PATH_MAX);
+    strncat (srv->spath, TMPDIR, PATH_MAX -1);
+    strncat (srv->spath, sname, PATH_MAX -1);
+
+    srv->version = COMMUNICATION_VERSION;
+    srv->index = 0; // TODO
+
+    if (cb != NULL) {
+        int ret = (*cb) (argc, argv, env, srv, sname);
+        if (ret != 0)
+            return ret;
+    }
+
+    return 0;
+}

lib/communication2.h

@@ -0,0 +1,41 @@
+#ifndef __COMMUNICATION2_H__
+#define __COMMUNICATION2_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <cbor.h>
+
+#include "process.h"
+#include <unistd.h> // unlink
+
+#include <fcntl.h> // open
+
+#include <errno.h> // error numbers
+
+#define COMMUNICATION_VERSION 1
+
+#define ER_FILE_OPEN                                1
+#define ER_FILE_CLOSE                               2
+#define ER_FILE_READ                                3
+#define ER_FILE_WRITE                               4
+#define ER_FILE_WRITE_PARAMS                        5
+
+#define ER_MEM_ALLOC        100
+#define ER_PARAMS           101
+
+
+struct service {
+    unsigned int version;
+    unsigned int index;
+    char spath[PATH_MAX];
+};
+
+int srv_init (int argc, char **argv, char **env
+        , struct service *srv, const char *sname
+        , int (*cb)(int argc, char **argv, char **env
+            , struct service *srv, const char *sname));
+
+
+
+#endif

lib/process.h

@@ -19,6 +19,7 @@ struct process {
     unsigned int index;
     char path_in [PATH_MAX];
     char path_out [PATH_MAX];
+    int pfd;
 };
 
 struct process * srv_process_copy (const struct process *p);

pingpong/Makefile

@@ -15,6 +15,9 @@ $(EXEC): $(OBJECTS) $(CFILES)
 .c.o:
 	$(CC) -c $(CFLAGS) $< -o $@
 
+$(TESTS):
+	valgrind --show-leak-kinds=all --leak-check=full -v --track-origins=yes ./$(basename $@).bin
+
 clean:
 	@-rm $(OBJECTS)
 

pingpong/pingpong.c

@@ -66,8 +66,6 @@ void main_loop (const struct service *srv)
         if (ret == -1) {
             fprintf (stderr, "MAIN_LOOP: error service_get_new_process\n");
             continue;
-        } else if (ret == 0) { // that should not happen
-            continue;
         } 
 
         srv_process_print (&tab_proc[cnt]);
@@ -88,7 +86,7 @@ void main_loop (const struct service *srv)
     }
 
     for (i = 0; i < cnt; i++) {
-        pthread_join(tab_thread[cnt], NULL);    
+        pthread_join(tab_thread[i], NULL);    
     }
 }
 

remote/Makefile

@@ -15,6 +15,9 @@ $(EXEC): $(OBJECTS) $(CFILES)
 .c.o:
 	$(CC) -c $(CFLAGS) $< -o $@
 
+$(TESTS):
+	valgrind --show-leak-kinds=all --leak-check=full -v --track-origins=yes ./$(basename $@).bin
+
 clean:
 	@-rm $(OBJECTS)
 

remote/script/testTcpd.sh

@@ -27,4 +27,6 @@ do
     echo "pid : ${pid}"
     cat ${REP}/${pid}-1-1-in
 
+    echo "exit" > ${REP}${pid}-1-1-out
+
 done

remote/tcpdclient.c

@@ -1,70 +0,0 @@
-#include "tcpdserver.h"
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-
-#define BUF_SIZE 1024
-#define PORT 6000
-
-void write_message(int sock, const char *buffer)
-{
-   if(send(sock, buffer, strlen(buffer), 0) < 0)
-   {
-      perror("send()");
-      exit(errno);
-   }
-}
-
-int read_message(int sock, char *buffer)
-{
-   int n = 0;
-
-   if((n = recv(sock, buffer, BUF_SIZE - 1, 0)) < 0)
-   {
-      perror("recv()");
-      /* if recv error we disonnect the client */
-      n = 0;
-   }
-
-   buffer[n] = 0;
-
-   return n;
-}
-
-
-int main(int argc, char ** argv) {
-	int sock = socket(AF_INET, SOCK_STREAM, 0);
-	if(sock == -1)
-	{
-	    perror("socket()");
-	    exit(errno);
-	}
-
-	struct sockaddr_in sin = {0};
-	sin.sin_addr.s_addr = inet_addr("127.0.0.1"); 
-	sin.sin_port = htons(PORT); /* on utilise htons pour le port */
-	sin.sin_family = AF_INET;
-
-	if(connect(sock,(struct sockaddr *) &sin, sizeof(struct sockaddr)) == -1)
-	{
-	    perror("connect()");
-	    exit(errno);
-	}
-
-	write_message(sock, "pongd 5");
-	sleep(1);
-	write_message(sock, "is it working ???");
-	sleep(2);
-	write_message(sock, "is it working ???");
-
-	close(sock);
-
-	return 0;
-}
-

remote/tcpdserver.c

@@ -16,7 +16,7 @@
 #define PORT 6000
 #define BUF_SIZE 1024
 #define TMPDIR "/tmp/ipc/"
-#define NBCLIENT 5
+#define NBCLIENT 10
 #define SERVICE_TCP "tcpd"
 
 int init_connection(const info_request *req)
@@ -45,7 +45,7 @@ int init_connection(const info_request *req)
         exit(errno);
     }
 
-    if(listen(sock, 5) == -1)
+    if(listen(sock, 10) == -1)
     {
         perror("listen()");
         exit(errno);
@@ -54,9 +54,9 @@ int init_connection(const info_request *req)
     return sock;
 }
 
-void write_message(int sock, const char *buffer)
+void write_message(int sock, const char *buffer, size_t size_buf)
 {
-    if(send(sock, buffer, strlen(buffer), 0) < 0)
+    if(send(sock, buffer, size_buf, 0) < 0)
     {
         perror("send()");
         exit(errno);
@@ -201,7 +201,7 @@ void * service_thread(void * c_data) {
                 perror("app_read()");
             }
             printf("message from file in : %s\n", buffer );
-            write_message(clientSock, buffer);
+            write_message(clientSock, buffer, msize);
             nbMessages--;
         } else if (FD_ISSET(clientSock, &rdfs)) {
 
@@ -212,7 +212,7 @@ void * service_thread(void * c_data) {
                     perror("file_write");
                 }
                 nbMessages++;
-            } else if (n == 0 && nbMessages == 0){
+            } else if (strncmp(buffer, "exit", 4) == 0 && nbMessages == 0){
                 //message end to server
                 if(app_write(&p, "exit", 4) < 0) {
                     perror("file_write");
@@ -451,6 +451,7 @@ int srv_get_new_request(const struct service *srv, info_request *req) {
 void * client_thread(void *reqq) {
     info_request *req = (info_request*) reqq;
     char buffer[BUF_SIZE];
+    int nbMessages = 0;
 
     int sock = socket(AF_INET, SOCK_STREAM, 0);
     if(sock == -1)
@@ -468,7 +469,7 @@ void * client_thread(void *reqq) {
     printf("Connected to server at :\n");
     printAddr(&req->addr);
 
-    write_message(sock, "pongd 5");
+    write_message(sock, "pongd 5", strlen("pongd 5"));
     /*sleep(1);
     write_message(sock, "is it working ???");
     sleep(2);
@@ -503,11 +504,15 @@ void * client_thread(void *reqq) {
         }
 
         if (FD_ISSET(fdout, &rdfs)){
-            if(read(fdout, &buffer, BUF_SIZE) < 0) {
+            size_t n_read = read(fdout, &buffer, BUF_SIZE);
+            if(n_read < 0) {
                 perror("read()");
             }
-            write_message(sock, buffer);
-
+            printf("Client : size message %ld \n",n_read );
+            write_message(sock, buffer, n_read);
+            if (strncmp(buffer, "exit", 4) != 0) {
+                nbMessages++;
+            }
 
 
         } else if (FD_ISSET(sock, &rdfs)) {
@@ -518,6 +523,7 @@ void * client_thread(void *reqq) {
                 if(file_write(req->p->path_in, buffer, strlen(buffer)) < 0) {
                     perror("file_write");
                 }
+                nbMessages--;     
 
             } else if (n == 0){
                 //message end from server
@@ -533,10 +539,14 @@ void * client_thread(void *reqq) {
             }
             
         }
+
+        if (strncmp(buffer, "exit", 4) == 0 && nbMessages == 0) {
+            break;
+        }
     }
 
     printf("------thread client shutdown----------\n");
-
+    close(fdout);
     close(sock);
 
     return NULL;

remote/tcpdserver.h

@@ -26,7 +26,7 @@ void endConnection (int sock);
 
 void printAddr (struct sockaddr_in *csin);
 
-void write_message(int sock, const char *buffer);
+void write_message(int sock, const char *buffer, size_t size);
 int read_message(int sock, char *buffer);
 
 //2 threads for listen and send data