/*
- * Copyright (C) 2017 - Julien Desfossez <jdesfossez@efficios.com>
+ * Copyright (C) 2017 Julien Desfossez <jdesfossez@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-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.
- *
- * 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 _LGPL_SOURCE
{0, 0, 0, 0, 0, 0, 0}
};
-static int mi_output_rotate(const char *status, const char *path,
- const char *session_name)
-{
- int ret;
-
- if (!lttng_opt_mi) {
- ret = 0;
- goto end;
- }
-
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_rotation);
- if (ret) {
- goto end;
- }
-
- ret = mi_lttng_writer_write_element_string(writer,
- mi_lttng_element_session_name, session_name);
- if (ret) {
- goto end;
- }
-
- ret = mi_lttng_writer_write_element_string(writer,
- mi_lttng_element_rotate_status, status);
- if (ret) {
- goto end;
- }
- if (path) {
- ret = mi_lttng_writer_write_element_string(writer,
- config_element_path, path);
- if (ret) {
- goto end;
- }
- }
- /* Close rotation element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- goto end;
- }
-
-end:
- return ret;
-}
-
-static int output_trace_archive_location(
- const struct lttng_trace_archive_location *location,
- const char *session_name)
-{
- int ret = 0;
- enum lttng_trace_archive_location_type location_type;
- enum lttng_trace_archive_location_status status;
- bool printed_location = false;
-
- location_type = lttng_trace_archive_location_get_type(location);
-
- _MSG("Trace chunk archive for session %s is now readable",
- session_name);
- switch (location_type) {
- case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL:
- {
- const char *absolute_path;
-
- status = lttng_trace_archive_location_local_get_absolute_path(
- location, &absolute_path);
- if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
- ret = -1;
- goto end;
- }
- MSG(" at %s", absolute_path);
- ret = mi_output_rotate("completed", absolute_path,
- session_name);
- if (ret) {
- goto end;
- }
- printed_location = true;
- break;
- }
- case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY:
- {
- uint16_t control_port, data_port;
- const char *host, *relative_path, *protocol_str;
- enum lttng_trace_archive_location_relay_protocol_type protocol;
-
- /* Fetch all relay location parameters. */
- status = lttng_trace_archive_location_relay_get_protocol_type(
- location, &protocol);
- if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
- ret = -1;
- goto end;
- }
-
- status = lttng_trace_archive_location_relay_get_host(
- location, &host);
- if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
- ret = -1;
- goto end;
- }
-
- status = lttng_trace_archive_location_relay_get_control_port(
- location, &control_port);
- if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
- ret = -1;
- goto end;
- }
-
- status = lttng_trace_archive_location_relay_get_data_port(
- location, &data_port);
- if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
- ret = -1;
- goto end;
- }
-
- status = lttng_trace_archive_location_relay_get_relative_path(
- location, &relative_path);
- if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
- ret = -1;
- goto end;
- }
-
- switch (protocol) {
- case LTTNG_TRACE_ARCHIVE_LOCATION_RELAY_PROTOCOL_TYPE_TCP:
- protocol_str = "tcp";
- break;
- default:
- protocol_str = "unknown";
- break;
- }
-
- MSG(" on relay %s://%s/%s [control port %" PRIu16 ", data port %"
- PRIu16 "]", protocol_str, host,
- relative_path, control_port, data_port);
- printed_location = true;
- ret = mi_output_rotate("completed", relative_path,
- session_name);
- if (ret) {
- goto end;
- }
- break;
- }
- default:
- break;
- }
-end:
- if (!printed_location) {
- MSG(" at an unknown location");
- }
- return ret;
-}
-
static int rotate_tracing(char *session_name)
{
int ret;
+ enum cmd_error_code cmd_ret = CMD_SUCCESS;
struct lttng_rotation_handle *handle = NULL;
enum lttng_rotation_status rotation_status;
enum lttng_rotation_state rotation_state = LTTNG_ROTATION_STATE_ONGOING;
+ const struct lttng_trace_archive_location *location = NULL;
+ bool print_location = true;
DBG("Rotating the output files of session %s", session_name);
switch (-ret) {
case LTTNG_ERR_SESSION_NOT_STARTED:
WARN("Tracing session %s not started yet", session_name);
- break;
+ cmd_ret = CMD_WARNING;
+ goto end;
default:
ERR("%s", lttng_strerror(ret));
- break;
+ goto error;
}
+ }
+
+ if (opt_no_wait) {
+ rotation_state = LTTNG_ROTATION_STATE_ONGOING;
+ goto skip_wait;
+ }
+
+ _MSG("Waiting for rotation to complete");
+ ret = fflush(stdout);
+ if (ret) {
+ PERROR("fflush");
goto error;
}
- if (!opt_no_wait) {
- _MSG("Waiting for rotation to complete");
- ret = fflush(stdout);
- if (ret) {
- PERROR("fflush");
+ do {
+ rotation_status = lttng_rotation_handle_get_state(handle,
+ &rotation_state);
+ if (rotation_status != LTTNG_ROTATION_STATUS_OK) {
+ MSG("");
+ ERR("Failed to query the state of the rotation.");
goto error;
}
- do {
- rotation_status = lttng_rotation_handle_get_state(handle,
- &rotation_state);
- if (rotation_status != LTTNG_ROTATION_STATUS_OK) {
- ERR("Failed to query the state of the rotation");
+ if (rotation_state == LTTNG_ROTATION_STATE_ONGOING) {
+ ret = usleep(DEFAULT_DATA_AVAILABILITY_WAIT_TIME_US);
+ if (ret) {
+ PERROR("\nusleep");
goto error;
}
+ _MSG(".");
- /*
- * Data sleep time before retrying (in usec). Don't
- * sleep if the call returned value indicates
- * availability.
- */
- if (rotation_state == LTTNG_ROTATION_STATE_ONGOING) {
- ret = usleep(DEFAULT_DATA_AVAILABILITY_WAIT_TIME);
- if (ret) {
- PERROR("usleep");
- goto error;
- }
- _MSG(".");
-
- ret = fflush(stdout);
- if (ret) {
- PERROR("fflush");
- goto error;
- }
+ ret = fflush(stdout);
+ if (ret) {
+ PERROR("\nfflush");
+ goto error;
}
- } while (rotation_state == LTTNG_ROTATION_STATE_ONGOING);
- MSG("");
- }
+ }
+ } while (rotation_state == LTTNG_ROTATION_STATE_ONGOING);
+ MSG("");
+skip_wait:
switch (rotation_state) {
case LTTNG_ROTATION_STATE_COMPLETED:
- {
- const struct lttng_trace_archive_location *location;
-
rotation_status = lttng_rotation_handle_get_archive_location(
handle, &location);
if (rotation_status != LTTNG_ROTATION_STATUS_OK) {
- ERR("Failed to retrieve the rotation's completed chunk archive location");
- goto error;
- }
- ret = output_trace_archive_location(location, session_name);
- if (ret) {
- goto error;
+ ERR("Failed to retrieve the rotation's completed chunk archive location.");
+ cmd_ret = CMD_ERROR;
}
- ret = CMD_SUCCESS;
- goto end;
- }
+ break;
case LTTNG_ROTATION_STATE_EXPIRED:
- MSG("Session %s rotated, but handle expired", session_name);
- ret = mi_output_rotate("expired", NULL, session_name);
- if (ret) {
- goto error;
- }
- ret = CMD_SUCCESS;
- goto end;
+ break;
+ case LTTNG_ROTATION_STATE_ERROR:
+ ERR("Failed to retrieve rotation state.");
+ goto error;
+ case LTTNG_ROTATION_STATE_ONGOING:
+ MSG("Rotation ongoing for session %s", session_name);
+ print_location = false;
+ break;
default:
- ERR("Unexpected rotation state received, aborting...");
+ ERR("Unexpected rotation state encountered.");
goto error;
}
-error:
- ret = CMD_ERROR;
+ if (!lttng_opt_mi && print_location) {
+ ret = print_trace_archive_location(location,
+ session_name);
+ } else if (lttng_opt_mi) {
+ ret = mi_lttng_rotate(writer, session_name, rotation_state,
+ location);
+ }
+
+ if (ret < 0) {
+ cmd_ret = CMD_ERROR;
+ }
+
end:
lttng_rotation_handle_destroy(handle);
- return ret;
+ return cmd_ret;
+error:
+ cmd_ret = CMD_ERROR;
+ goto end;
}
/*
*/
int cmd_rotate(int argc, const char **argv)
{
- int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1;
+ int opt, ret;
+ enum cmd_error_code cmd_ret = CMD_SUCCESS;
int popt_ret;
static poptContext pc;
char *session_name = NULL;
pc = poptGetContext(NULL, argc, argv, long_options, 0);
popt_ret = poptReadDefaultConfig(pc, 0);
if (popt_ret) {
- ret = CMD_ERROR;
ERR("poptReadDefaultConfig");
- goto end;
+ goto error;
}
while ((opt = poptGetNextOpt(pc)) != -1) {
list_cmd_options(stdout, long_options);
goto end;
default:
- ret = CMD_UNDEFINED;
+ cmd_ret = CMD_UNDEFINED;
goto end;
}
}
if (!opt_session_name) {
session_name = get_session_name();
if (!session_name) {
- goto end;
+ goto error;
}
free_session_name = true;
} else {
if (lttng_opt_mi) {
writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
if (!writer) {
- ret = -LTTNG_ERR_NOMEM;
- goto end;
+ goto error;
}
/* Open rotate command */
ret = mi_lttng_writer_command_open(writer,
mi_lttng_element_command_rotate);
if (ret) {
- ret = CMD_ERROR;
- goto end;
+ goto error;
}
/* Open output element */
ret = mi_lttng_writer_open_element(writer,
mi_lttng_element_command_output);
if (ret) {
- goto end;
- }
-
- /* Open rotations element */
- ret = mi_lttng_writer_open_element(writer,
- mi_lttng_element_rotations);
- if (ret) {
- goto end;
+ goto error;
}
-
}
- command_ret = rotate_tracing(session_name);
- if (command_ret) {
- success = 0;
- }
+ cmd_ret = rotate_tracing(session_name);
/* Mi closing */
if (lttng_opt_mi) {
- /* Close rotations element */
+ /* Close output element */
ret = mi_lttng_writer_close_element(writer);
if (ret) {
- goto end;
- }
- /* Close output element */
- ret = mi_lttng_writer_close_element(writer);
- if (ret) {
- goto end;
+ goto error;
}
/* Success ? */
ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success, success);
+ mi_lttng_element_command_success,
+ cmd_ret == CMD_SUCCESS);
if (ret) {
- ret = CMD_ERROR;
- goto end;
+ goto error;
}
/* Command element close */
ret = mi_lttng_writer_command_close(writer);
if (ret) {
- ret = CMD_ERROR;
- goto end;
+ goto error;
}
}
-end:
/* Mi clean-up */
if (writer && mi_lttng_writer_destroy(writer)) {
- /* Preserve original error code */
- ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
+ goto error;
}
-
- /* Overwrite ret if an error occurred with start_tracing */
- ret = command_ret ? command_ret : ret;
+end:
poptFreeContext(pc);
if (free_session_name) {
free(session_name);
}
- return ret;
+
+ return cmd_ret;
+error:
+ cmd_ret = CMD_ERROR;
+ goto end;
}
projects / lttng-tools.git / blobdiff