common: compile libconsumer, libust-consumer, libkernel-consumer as C++

[lttng-tools.git] / tests / regression / tools / notification / consumer_testpoints.c

diff --git a/tests/regression/tools/notification/consumer_testpoints.c b/tests/regression/tools/notification/consumer_testpoints.c
deleted file mode 100644 (file)
index 6294683..0000000
--- a/tests/regression/tools/notification/consumer_testpoints.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#include <common/compat/getenv.h>
-#include <common/consumer/consumer.h>
-#include <common/pipe.h>
-#include <common/error.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <lttng/constant.h>
-#include <lttng/lttng-export.h>
-#include <fcntl.h>
-#include <dlfcn.h>
-#include <stdio.h>
-
-static char *pause_pipe_path;
-static struct lttng_pipe *pause_pipe;
-static int *data_consumption_state;
-static enum lttng_consumer_type (*lttng_consumer_get_type)(void);
-
-int lttng_opt_verbose;
-int lttng_opt_mi;
-int lttng_opt_quiet;
-
-static
-void __attribute__((destructor)) pause_pipe_fini(void)
-{
-       int ret;
-
-       if (pause_pipe_path) {
-               ret = unlink(pause_pipe_path);
-               if (ret) {
-                       PERROR("unlink pause pipe");
-               }
-       }
-
-       free(pause_pipe_path);
-       lttng_pipe_destroy(pause_pipe);
-}
-
-/*
- * We use this testpoint, invoked at the start of the consumerd's data handling
- * thread to create a named pipe/FIFO which a test application can use to either
- * pause or resume the consumption of data.
- */
-LTTNG_EXPORT int __testpoint_consumerd_thread_data(void);
-int __testpoint_consumerd_thread_data(void)
-{
-       int ret = 0;
-       const char *pause_pipe_path_prefix, *domain;
-
-       pause_pipe_path_prefix = lttng_secure_getenv(
-                       "CONSUMER_PAUSE_PIPE_PATH");
-       if (!pause_pipe_path_prefix) {
-               ret = -1;
-               goto end;
-       }
-
-       /*
-        * These symbols are exclusive to the consumerd process, hence we can't
-        * rely on their presence in the sessiond. Not looking-up these symbols
-        * dynamically would not allow this shared object to be LD_PRELOAD-ed
-        * when launching the session daemon.
-        */
-       data_consumption_state = dlsym(NULL, "data_consumption_paused");
-       LTTNG_ASSERT(data_consumption_state);
-       lttng_consumer_get_type = dlsym(NULL, "lttng_consumer_get_type");
-       LTTNG_ASSERT(lttng_consumer_get_type);
-
-       switch (lttng_consumer_get_type()) {
-       case LTTNG_CONSUMER_KERNEL:
-               domain = "kernel";
-               break;
-       case LTTNG_CONSUMER32_UST:
-               domain = "ust32";
-               break;
-       case LTTNG_CONSUMER64_UST:
-               domain = "ust64";
-               break;
-       default:
-               abort();
-       }
-
-       ret = asprintf(&pause_pipe_path, "%s-%s", pause_pipe_path_prefix,
-                       domain);
-       if (ret < 1) {
-               ERR("Failed to allocate pause pipe path");
-               goto end;
-       }
-
-       DBG("Creating pause pipe at %s", pause_pipe_path);
-       pause_pipe = lttng_pipe_named_open(pause_pipe_path,
-                       S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP, O_NONBLOCK);
-       if (!pause_pipe) {
-               ERR("Failed to create pause pipe at %s", pause_pipe_path);
-               ret = -1;
-               goto end;
-       }
-
-       /* Only the read end of the pipe is useful to us. */
-       ret = lttng_pipe_write_close(pause_pipe);
-end:
-       return ret;
-}
-
-LTTNG_EXPORT int __testpoint_consumerd_thread_data_poll(void);
-int __testpoint_consumerd_thread_data_poll(void)
-{
-       int ret = 0;
-       uint8_t value;
-       bool value_read = false;
-
-       if (!pause_pipe) {
-               ret = -1;
-               goto end;
-       }
-
-       /* Purge pipe and only consider the freshest value. */
-       do {
-               ret = lttng_pipe_read(pause_pipe, &value, sizeof(value));
-               if (ret == sizeof(value)) {
-                       value_read = true;
-               }
-       } while (ret == sizeof(value));
-
-       ret = (errno == EAGAIN) ? 0 : -errno;
-
-       if (value_read) {
-               *data_consumption_state = !!value;
-               DBG("Message received on pause pipe: %s data consumption",
-                               *data_consumption_state ? "paused" : "resumed");
-       }
-end:
-       return ret;
-}