Cygwin: Pass file paths instead of file descriptors over UNIX sockets
[lttng-ust.git] / tests / ust-multi-test / ust-multi-test.c
index c4b4f212973958664d69592232542e9ec8470394..db62962689ae21f07a906011246ea04a01187083 100644 (file)
@@ -4,21 +4,22 @@
  * Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; only version 2 of the License.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License only.
  *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA  02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #define _LARGEFILE64_SOURCE
+#define _GNU_SOURCE
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -27,6 +28,8 @@
 #include <unistd.h>
 #include <sys/wait.h>
 #include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <sys/mman.h>
@@ -36,7 +39,7 @@
 #include <assert.h>
 #include <sys/socket.h>
 
-#include "lttng-ust-comm.h"
+#include <ust-comm.h>
 #include <../../libringbuffer/backend.h>
 #include <../../libringbuffer/frontend.h>
 
@@ -51,18 +54,11 @@ const char *evname[] = {
        "ust_tests_hello_dontexist",
 };
 
-struct object_data {
-       int handle;
-       int shm_fd;
-       int wait_fd;
-       uint64_t memory_map_size;
-};
-
 static int session_handle[NR_SESSIONS];
-static struct object_data metadata_stream_data[NR_SESSIONS];
-static struct object_data metadata_data[NR_SESSIONS];
-static struct object_data channel_data[NR_SESSIONS][NR_CHANNELS];
-static struct object_data stream_data[NR_SESSIONS][NR_CHANNELS][MAX_NR_STREAMS];
+static struct lttng_ust_object_data metadata_stream_data[NR_SESSIONS];
+static struct lttng_ust_object_data metadata_data[NR_SESSIONS];
+static struct lttng_ust_object_data channel_data[NR_SESSIONS][NR_CHANNELS];
+static struct lttng_ust_object_data stream_data[NR_SESSIONS][NR_CHANNELS][MAX_NR_STREAMS];
 static int event_handle[NR_SESSIONS][NR_CHANNELS][NR_EVENTS];
 
 static int apps_socket = -1;
@@ -76,171 +72,36 @@ static void handle_signals(int signo)
        quit_program = 1;
 }
 
-static int send_app_msg(int sock, struct lttcomm_ust_msg *lum)
-{
-       ssize_t len;
-
-       len = lttcomm_send_unix_sock(sock, lum, sizeof(*lum));
-       switch (len) {
-       case sizeof(*lum):
-               printf("message successfully sent\n");
-               break;
-       case -1:
-               if (errno == ECONNRESET) {
-                       printf("remote end closed connection\n");
-                       return 0;
-               }
-               return -1;
-       default:
-               printf("incorrect message size: %zd\n", len);
-               return -1;
-       }
-       return 0;
-}
-
-static int recv_app_reply(int sock, struct lttcomm_ust_reply *lur,
-                         uint32_t expected_handle, uint32_t expected_cmd)
-{
-       ssize_t len;
-
-       memset(lur, 0, sizeof(*lur));
-       len = lttcomm_recv_unix_sock(sock, lur, sizeof(*lur));
-       switch (len) {
-       case 0: /* orderly shutdown */
-               printf("Application has performed an orderly shutdown\n");
-               return -EINVAL;
-       case sizeof(*lur):
-               printf("result message received\n");
-               if (lur->handle != expected_handle) {
-                       printf("Unexpected result message handle\n");
-                       return -EINVAL;
-               }
-
-               if (lur->cmd != expected_cmd) {
-                       printf("Unexpected result message command\n");
-                       return -EINVAL;
-               }
-               if (lur->ret_code != LTTCOMM_OK) {
-                       printf("remote operation failed with code %d.\n",
-                               lur->ret_code);
-                       return lur->ret_code;
-               }
-               return 0;
-       case -1:
-               if (errno == ECONNRESET) {
-                       printf("remote end closed connection\n");
-                       return -EINVAL;
-               }
-               return -1;
-       default:
-               printf("incorrect message size: %zd\n", len);
-               return len > 0 ? -1 : len;
-       }
-}
-
-static int send_app_cmd(int sock,
-                       struct lttcomm_ust_msg *lum,
-                       struct lttcomm_ust_reply *lur)
-{
-       int ret;
-
-       ret = send_app_msg(sock, lum);
-       if (ret)
-               return ret;
-       ret = recv_app_reply(sock, lur, lum->handle, lum->cmd);
-       if (ret)
-               return ret;
-       return 0;
-}
-
-
-/*
- * Receives a single fd from socket.
- *
- * Returns the size of received data
- */
-static int lttcomm_recv_fd(int sock)
-{
-       struct iovec iov[1];
-       int ret = 0;
-       int data_fd;
-       struct cmsghdr *cmsg;
-       char recv_fd[CMSG_SPACE(sizeof(int))];
-       struct msghdr msg = { 0 };
-       union {
-               unsigned char vc[4];
-               int vi;
-       } tmp;
-       int i;
-
-       /* Prepare to receive the structures */
-       iov[0].iov_base = &data_fd;
-       iov[0].iov_len = sizeof(data_fd);
-       msg.msg_iov = iov;
-       msg.msg_iovlen = 1;
-       msg.msg_control = recv_fd;
-       msg.msg_controllen = sizeof(recv_fd);
-
-       printf("Waiting to receive fd\n");
-       if ((ret = recvmsg(sock, &msg, 0)) < 0) {
-               perror("recvmsg");
-               goto end;
-       }
-       if (ret != sizeof(data_fd)) {
-               printf("Received %d bytes, expected %ld", ret, sizeof(data_fd));
-               goto end;
-       }
-       cmsg = CMSG_FIRSTHDR(&msg);
-       if (!cmsg) {
-               printf("Invalid control message header\n");
-               ret = -1;
-               goto end;
-       }
-       if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
-               printf("Didn't received any fd\n");
-               ret = -1;
-               goto end;
-       }
-       /* this is our fd */
-       for (i = 0; i < sizeof(int); i++)
-               tmp.vc[i] = CMSG_DATA(cmsg)[0];
-       ret = tmp.vi;
-       printf("received fd %d\n", ret);
-end:
-       return ret;
-}
-
-
 static
-int open_streams(int sock, int channel_handle, struct object_data *stream_datas,
+int open_streams(int sock, int channel_handle, struct lttng_ust_object_data *stream_datas,
                int nr_check)
 {
        int ret, k = 0;
 
        for (;;) {
-               struct lttcomm_ust_msg lum;
-               struct lttcomm_ust_reply lur;
+               struct ustcomm_ust_msg lum;
+               struct ustcomm_ust_reply lur;
 
                memset(&lum, 0, sizeof(lum));
                lum.handle = channel_handle;
                lum.cmd = LTTNG_UST_STREAM;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (!ret) {
                        assert(k < nr_check);
                        stream_datas[k].handle = lur.ret_val;
                        printf("received stream handle %u\n",
                                stream_datas[k].handle);
-                       if (lur.ret_code == LTTCOMM_OK) {
+                       if (lur.ret_code == USTCOMM_OK) {
                                ssize_t len;
 
                                stream_datas[k].memory_map_size = lur.u.stream.memory_map_size;
                                /* get shm fd */
-                               len = lttcomm_recv_fd(sock);
+                               len = ustcomm_recv_fd(sock);
                                if (len < 0)
                                        return -EINVAL;
                                stream_datas[k].shm_fd = len;
                                /* get wait fd */
-                               len = lttcomm_recv_fd(sock);
+                               len = ustcomm_recv_fd(sock);
                                if (len < 0)
                                        return -EINVAL;
                                stream_datas[k].wait_fd = len;
@@ -256,20 +117,20 @@ int open_streams(int sock, int channel_handle, struct object_data *stream_datas,
 }
 
 static
-int close_streams(int sock, struct object_data *stream_datas, int nr_check)
+int close_streams(int sock, struct lttng_ust_object_data *stream_datas, int nr_check)
 {
        int ret, k;
 
        for (k = 0; k < nr_check; k++) {
-               struct lttcomm_ust_msg lum;
-               struct lttcomm_ust_reply lur;
+               struct ustcomm_ust_msg lum;
+               struct ustcomm_ust_reply lur;
 
                if (!stream_datas[k].handle)
                        continue;
                memset(&lum, 0, sizeof(lum));
                lum.handle = stream_datas[k].handle;
                lum.cmd = LTTNG_UST_RELEASE;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (ret) {
                        printf("Error closing stream\n");
                        return ret;
@@ -293,10 +154,10 @@ int close_streams(int sock, struct object_data *stream_datas, int nr_check)
 }
 
 static
-struct shm_handle *map_channel(struct object_data *chan_data,
-               struct object_data *stream_datas, int nr_check)
+struct lttng_ust_shm_handle *map_channel(struct lttng_ust_object_data *chan_data,
+               struct lttng_ust_object_data *stream_datas, int nr_check)
 {
-       struct shm_handle *handle;
+       struct lttng_ust_shm_handle *handle;
        struct channel *chan;
        int k, ret;
 
@@ -313,7 +174,7 @@ struct shm_handle *map_channel(struct object_data *chan_data,
        chan = shmp(handle, handle->chan);
 
        for (k = 0; k < nr_check; k++) {
-               struct object_data *stream_data = &stream_datas[k];
+               struct lttng_ust_object_data *stream_data = &stream_datas[k];
 
                if (!stream_data->handle)
                        break;
@@ -337,7 +198,7 @@ error_destroy:
 }
 
 static
-void unmap_channel(struct shm_handle *handle)
+void unmap_channel(struct lttng_ust_shm_handle *handle)
 {
        struct channel *chan;
 
@@ -347,19 +208,23 @@ void unmap_channel(struct shm_handle *handle)
 }
 
 static
-int consume_stream(struct shm_handle *handle, int cpu, char *outfile)
+int consume_stream(struct lttng_ust_shm_handle *handle, int cpu, char *outfile)
 {
        struct channel *chan;
-       struct lib_ring_buffer *buf;
+       struct lttng_ust_lib_ring_buffer *buf;
        int outfd, ret;
-       int shm_fd, wait_fd;
-       uint64_t memory_map_size;
+       int *shm_fd, *wait_fd;
+       char *shm_path, *wait_pipe_path;
+       uint64_t *memory_map_size;
 
        chan = shmp(handle, handle->chan);
 
        /* open stream */
        buf = channel_get_ring_buffer(&chan->backend.config,
-               chan, cpu, handle, &shm_fd, &wait_fd, &memory_map_size);
+                                     chan, cpu, handle,
+                                     &shm_fd, &shm_path,
+                                     &wait_fd, &wait_pipe_path,
+                                     &memory_map_size);
        if (!buf)
                return -ENOENT;
        ret = lib_ring_buffer_open_read(buf, handle, 1);
@@ -368,7 +233,7 @@ int consume_stream(struct shm_handle *handle, int cpu, char *outfile)
        }
 
        /* copy */
-       outfd = open(outfile, O_WRONLY | O_CREAT | O_LARGEFILE | O_TRUNC,
+       outfd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC,
                        S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
        if (outfd < 0) {
                perror("open output");
@@ -401,7 +266,7 @@ int consume_stream(struct shm_handle *handle, int cpu, char *outfile)
                printf("WRITE: copy %lu bytes\n", read_size);
                copy_size = write(outfd, ptr, read_size);
                if (copy_size < read_size) {
-                       printf("write issue: copied %zd, expected %lu\n", copy_size, read_size);
+                       printf("write issue: copied %lu, expected %lu\n", copy_size, read_size);
                }
                lib_ring_buffer_put_next_subbuf(buf, handle);
        }
@@ -425,7 +290,7 @@ int consume_buffers(void)
 
        for (i = 0; i < NR_SESSIONS; i++) {
                char pathname[PATH_MAX];
-               struct shm_handle *handle;
+               struct lttng_ust_shm_handle *handle;
 
                snprintf(pathname, PATH_MAX - 1, "/tmp/testtrace%u", i);
                old_umask = umask(0);
@@ -475,8 +340,8 @@ int consume_buffers(void)
 
 int send_app_msgs(int sock)
 {
-       struct lttcomm_ust_msg lum;
-       struct lttcomm_ust_reply lur;
+       struct ustcomm_ust_msg lum;
+       struct ustcomm_ust_reply lur;
        int ret, i, j, k;
 
        for (i = 0; i < NR_SESSIONS; i++) {
@@ -484,7 +349,7 @@ int send_app_msgs(int sock)
                memset(&lum, 0, sizeof(lum));
                lum.handle = LTTNG_UST_ROOT_HANDLE;
                lum.cmd = LTTNG_UST_SESSION;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (ret)
                        return ret;
                session_handle[i] = lur.ret_val;
@@ -500,22 +365,22 @@ int send_app_msgs(int sock)
                lum.u.channel.switch_timer_interval = 0;
                lum.u.channel.read_timer_interval = 0;
                lum.u.channel.output = LTTNG_UST_MMAP;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (ret)
                        return ret;
                metadata_data[i].handle = lur.ret_val;
                printf("received metadata handle %u\n", metadata_data[i].handle);
-               if (lur.ret_code == LTTCOMM_OK) {
+               if (lur.ret_code == USTCOMM_OK) {
                        ssize_t len;
 
                        metadata_data[i].memory_map_size = lur.u.channel.memory_map_size;
                        /* get shm fd */
-                       len = lttcomm_recv_fd(sock);
+                       len = ustcomm_recv_fd(sock);
                        if (len < 0)
                                return -EINVAL;
                        metadata_data[i].shm_fd = len;
                        /* get wait fd */
-                       len = lttcomm_recv_fd(sock);
+                       len = ustcomm_recv_fd(sock);
                        if (len < 0)
                                return -EINVAL;
                        metadata_data[i].wait_fd = len;
@@ -542,22 +407,22 @@ int send_app_msgs(int sock)
                        lum.u.channel.switch_timer_interval = 0;
                        lum.u.channel.read_timer_interval = 0;
                        lum.u.channel.output = LTTNG_UST_MMAP;
-                       ret = send_app_cmd(sock, &lum, &lur);
+                       ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                        if (ret)
                                return ret;
                        channel_data[i][j].handle = lur.ret_val;
                        printf("received channel handle %u\n", channel_data[i][j].handle);
-                       if (lur.ret_code == LTTCOMM_OK) {
+                       if (lur.ret_code == USTCOMM_OK) {
                                ssize_t len;
 
                                channel_data[i][j].memory_map_size = lur.u.channel.memory_map_size;
                                /* get shm fd */
-                               len = lttcomm_recv_fd(sock);
+                               len = ustcomm_recv_fd(sock);
                                if (len < 0)
                                        return -EINVAL;
                                channel_data[i][j].shm_fd = len;
                                /* get wait fd */
-                               len = lttcomm_recv_fd(sock);
+                               len = ustcomm_recv_fd(sock);
                                if (len < 0)
                                        return -EINVAL;
                                channel_data[i][j].wait_fd = len;
@@ -571,7 +436,7 @@ int send_app_msgs(int sock)
                                strncpy(lum.u.event.name, evname[k],
                                        LTTNG_UST_SYM_NAME_LEN);
                                lum.u.event.instrumentation = LTTNG_UST_TRACEPOINT;
-                               ret = send_app_cmd(sock, &lum, &lur);
+                               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                                if (ret)
                                        return ret;
                                event_handle[i][j][k] = lur.ret_val;
@@ -590,7 +455,7 @@ int send_app_msgs(int sock)
                memset(&lum, 0, sizeof(lum));
                lum.handle = session_handle[i];
                lum.cmd = LTTNG_UST_SESSION_START;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (ret)
                        return ret;
                printf("Session handle %u started.\n", session_handle[i]);
@@ -600,7 +465,7 @@ int send_app_msgs(int sock)
        memset(&lum, 0, sizeof(lum));
        lum.handle = LTTNG_UST_ROOT_HANDLE;
        lum.cmd = LTTNG_UST_REGISTER_DONE;
-       ret = send_app_cmd(sock, &lum, &lur);
+       ret = ustcomm_send_app_cmd(sock, &lum, &lur);
        if (ret)
                return ret;
        printf("Registration done acknowledged.\n");
@@ -627,14 +492,14 @@ int send_app_msgs(int sock)
                                memset(&lum, 0, sizeof(lum));
                                lum.handle = event_handle[i][j][k];
                                lum.cmd = LTTNG_UST_RELEASE;
-                               ret = send_app_cmd(sock, &lum, &lur);
+                               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                                if (ret)
                                        return ret;
                        }
                        memset(&lum, 0, sizeof(lum));
                        lum.handle = channel_data[i][j].handle;
                        lum.cmd = LTTNG_UST_RELEASE;
-                       ret = send_app_cmd(sock, &lum, &lur);
+                       ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                        if (ret)
                                return ret;
                        if (channel_data[i][j].shm_fd >= 0) {
@@ -657,7 +522,7 @@ int send_app_msgs(int sock)
                memset(&lum, 0, sizeof(lum));
                lum.handle = metadata_data[i].handle;
                lum.cmd = LTTNG_UST_RELEASE;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (ret)
                        return ret;
                if (metadata_data[i].shm_fd >= 0) {
@@ -675,7 +540,7 @@ int send_app_msgs(int sock)
                memset(&lum, 0, sizeof(lum));
                lum.handle = session_handle[i];
                lum.cmd = LTTNG_UST_RELEASE;
-               ret = send_app_cmd(sock, &lum, &lur);
+               ret = ustcomm_send_app_cmd(sock, &lum, &lur);
                if (ret)
                        return ret;
        }
@@ -898,7 +763,7 @@ int main(int argc, char **argv)
                         DEFAULT_HOME_APPS_UNIX_SOCK, home_dir);
        }
 
-       ret = lttcomm_create_unix_sock(apps_sock_path);
+       ret = ustcomm_create_unix_sock(apps_sock_path);
        if (ret < 0) {
                perror("create error");
                return ret;
@@ -916,7 +781,7 @@ int main(int argc, char **argv)
                }
                umask(old_umask);
        }
-       ret = lttcomm_listen_unix_sock(apps_socket);
+       ret = ustcomm_listen_unix_sock(apps_socket);
        if (ret < 0) {
                perror("listen error");
                return ret;
@@ -947,7 +812,7 @@ int main(int argc, char **argv)
                        break;
 
                printf("Accepting application registration\n");
-               sock = lttcomm_accept_unix_sock(apps_socket);
+               sock = ustcomm_accept_unix_sock(apps_socket);
                if (sock < 0) {
                        perror("accept error");
                        goto end;
@@ -957,9 +822,9 @@ int main(int argc, char **argv)
                 * Basic recv here to handle the very simple data
                 * that the libust send to register (reg_msg).
                 */
-               len = lttcomm_recv_unix_sock(sock, &reg_msg, sizeof(reg_msg));
+               len = ustcomm_recv_unix_sock(sock, &reg_msg, sizeof(reg_msg));
                if (len < 0 || len != sizeof(reg_msg)) {
-                       perror("lttcomm_recv_unix_sock");
+                       perror("ustcomm_recv_unix_sock");
                        continue;
                }
                memcpy(bufname, reg_msg.name, 16);
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