debug fork

diff --git a/src/preload.c b/src/preload.c
index e901d1308815025b46b90fec82c43ca67d4134ab..b261c8901b3837608f898d7321a52e511f4b9151 100644 (file)
--- a/src/preload.c
+++ b/src/preload.c
@@ -48,6 +48,7 @@
 #include <netinet/tcp.h>
 #include <unistd.h>
 #include <semaphore.h>
+#include <stdio.h>
 
 #include <rdma/rdma_cma.h>
 #include <rdma/rdma_verbs.h>
@@ -463,18 +464,22 @@ static int connect_fork(int socket, const struct sockaddr *addr, socklen_t addrl
        int fd, ret;
        uint32_t msg;
 
+       printf("connect_fork\n");
        fd = fd_getd(socket);
        ret = real.connect(fd, addr, addrlen);
+       printf("connect_fork - real connect %d\n", ret);
        if (ret)
                return ret;
 
        ret = real.recv(fd, &msg, sizeof msg, MSG_PEEK);
+       printf("connect_fork - real recv %d msg %d\n", ret, msg);
        if ((ret != sizeof msg) || msg) {
                fd_store(socket, fd, fd_normal);
                return 0;
        }
 
        ret = transpose_socket(socket, fd_rsocket);
+       printf("connect_fork - transpose socket %d\n", ret);
        if (ret < 0)
                return ret;
 
@@ -827,11 +832,14 @@ pid_t fork(void)
        uint32_t msg;
 
        init_preload();
+       printf("fork\n");
        pid = real.fork();
+       printf("fork - pid %d\n", pid);
        if (pid || !fork_support || (last_accept < 0) ||
            (fd_get(last_accept, &sfd) != fd_fork))
                goto out;
 
+       printf("fork - switching to rsocket\n");
        len = sizeof sin6;
        ret = real.getsockname(sfd, (struct sockaddr *) &sin6, &len);
        if (ret)
@@ -840,10 +848,12 @@ pid_t fork(void)
        memset(&sin6.sin6_addr, 0, sizeof sin6.sin6_addr);
 
        sem = sem_open("/rsocket_fork", O_CREAT, 0644, 1);
+       printf("fork - sem_open %d\n", sem);
        if (sem == SEM_FAILED)
                goto out;
 
        lfd = rsocket(sin6.sin6_family, SOCK_STREAM, 0);
+       printf("fork - rsocket %d\n", ldf);
        if (lfd < 0)
                goto sclose;
 
@@ -852,14 +862,17 @@ pid_t fork(void)
 
        sem_wait(sem);
        ret = rbind(lfd, (struct sockaddr *) &sin6, sizeof sin6);
+       printf("fork - rbind %d\n", ret);
        if (ret)
                goto lclose;
 
        ret = rlisten(lfd, 1);
+       printf("fork - rlisten %d\n", ret);
        if (ret)
                goto lclose;
 
        dfd = raccept(lfd, NULL, NULL);
+       printf("fork - raccept %d\n", dfd);
        if (dfd < 0)
                goto lclose;
 
@@ -869,6 +882,7 @@ pid_t fork(void)
 
        msg = 0;
        ret = real.write(sfd, &msg, sizeof msg);
+       printf("fork - real write %d\n", ret);
        if (ret != sizeof msg) {
                rclose(dfd);
                goto lclose;