/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 EfficiOS Inc.
*
- * 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
static struct lttng_channel chan_opts;
-static char *opt_channels;
static int opt_kernel;
static char *opt_session_name;
static int opt_userspace;
static int opt_buffer_global;
static struct {
bool set;
- uint32_t interval;
+ uint64_t interval;
} opt_monitor_timer;
static struct {
bool set;
/*
* Adding channel using the lttng API.
*/
-static int enable_channel(char *session_name)
+static int enable_channel(char *session_name, char *channel_list)
{
struct lttng_channel *channel = NULL;
int ret = CMD_SUCCESS, warn = 0, error = 0, success = 0;
}
/* Strip channel list (format: chan1,chan2,...) */
- channel_name = strtok(opt_channels, ",");
+ channel_name = strtok(channel_list, ",");
while (channel_name != NULL) {
void *extended_ptr;
/* Validate channel name's length */
- if (strlen(channel_name) >= NAME_MAX) {
+ if (strlen(channel_name) >= sizeof(chan_opts.name)) {
ERR("Channel name is too long (max. %zu characters)",
sizeof(chan_opts.name) - 1);
error = 1;
int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1;
static poptContext pc;
char *session_name = NULL;
+ char *channel_list = NULL;
char *opt_arg = NULL;
+ const char *arg_channel_list = NULL;
+ const char *leftover = NULL;
init_channel_config();
}
case OPT_SWITCH_TIMER:
{
- unsigned long v;
+ uint64_t v;
errno = 0;
opt_arg = poptGetOptArg(pc);
- v = strtoul(opt_arg, NULL, 0);
- if (errno != 0 || !isdigit(opt_arg[0])) {
- ERR("Wrong value in --switch-timer parameter: %s", opt_arg);
+
+ if (utils_parse_time_suffix(opt_arg, &v) < 0) {
+ ERR("Wrong value for --switch-timer parameter: %s", opt_arg);
ret = CMD_ERROR;
goto end;
}
+
if (v != (uint32_t) v) {
ERR("32-bit overflow in --switch-timer parameter: %s", opt_arg);
ret = CMD_ERROR;
goto end;
}
chan_opts.attr.switch_timer_interval = (uint32_t) v;
- DBG("Channel switch timer interval set to %d", chan_opts.attr.switch_timer_interval);
+ DBG("Channel switch timer interval set to %d %s",
+ chan_opts.attr.switch_timer_interval,
+ USEC_UNIT);
break;
}
case OPT_READ_TIMER:
{
- unsigned long v;
+ uint64_t v;
errno = 0;
opt_arg = poptGetOptArg(pc);
- v = strtoul(opt_arg, NULL, 0);
- if (errno != 0 || !isdigit(opt_arg[0])) {
- ERR("Wrong value in --read-timer parameter: %s", opt_arg);
+
+ if (utils_parse_time_suffix(opt_arg, &v) < 0) {
+ ERR("Wrong value for --read-timer parameter: %s", opt_arg);
ret = CMD_ERROR;
goto end;
}
+
if (v != (uint32_t) v) {
ERR("32-bit overflow in --read-timer parameter: %s", opt_arg);
ret = CMD_ERROR;
goto end;
}
chan_opts.attr.read_timer_interval = (uint32_t) v;
- DBG("Channel read timer interval set to %d", chan_opts.attr.read_timer_interval);
+ DBG("Channel read timer interval set to %d %s",
+ chan_opts.attr.read_timer_interval,
+ USEC_UNIT);
break;
}
case OPT_MONITOR_TIMER:
{
- unsigned long v;
+ uint64_t v;
errno = 0;
opt_arg = poptGetOptArg(pc);
- v = strtoul(opt_arg, NULL, 0);
- if (errno != 0 || !isdigit(opt_arg[0])) {
- ERR("Wrong value in --monitor-timer parameter: %s", opt_arg);
- ret = CMD_ERROR;
- goto end;
- }
- if (v != (uint32_t) v) {
- ERR("32-bit overflow in --monitor-timer parameter: %s", opt_arg);
+
+ if (utils_parse_time_suffix(opt_arg, &v) < 0) {
+ ERR("Wrong value for --monitor-timer parameter: %s", opt_arg);
ret = CMD_ERROR;
goto end;
}
- opt_monitor_timer.interval = (uint32_t) v;
+ opt_monitor_timer.interval = (uint64_t) v;
opt_monitor_timer.set = true;
- DBG("Channel monitor timer interval set to %d", opt_monitor_timer.interval);
+ DBG("Channel monitor timer interval set to %" PRIu64 " %s",
+ opt_monitor_timer.interval,
+ USEC_UNIT);
break;
}
case OPT_BLOCKING_TIMEOUT:
{
- long long v; /* in usec */
+ uint64_t v;
long long v_msec;
errno = 0;
opt_arg = poptGetOptArg(pc);
- v = strtoll(opt_arg, NULL, 0);
- if (errno != 0 || (!isdigit(opt_arg[0]) && opt_arg[0] != '-')
- || v < -1) {
- ERR("Wrong value in --blocking-timeout parameter: %s", opt_arg);
+
+ if (strcmp(opt_arg, "inf") == 0) {
+ opt_blocking_timeout.value = (int64_t) -1;
+ opt_blocking_timeout.set = true;
+ DBG("Channel blocking timeout set to infinity");
+ break;
+ }
+
+ if (utils_parse_time_suffix(opt_arg, &v) < 0) {
+ ERR("Wrong value for --blocking-timeout parameter: %s", opt_arg);
ret = CMD_ERROR;
goto end;
}
- if (v >= 0) {
- /*
- * While LTTng-UST and LTTng-tools will accept
- * a blocking timeout expressed in µs, the
- * current tracer implementation relies on
- * poll() which takes an "int timeout" parameter
- * expressed in msec.
- *
- * Since the error reporting from the tracer
- * is not precise, we perform this check here
- * to provide a helpful error message in case of
- * overflow.
- *
- * The setter (liblttng-ctl) also performs an
- * equivalent check.
- */
- v_msec = v / 1000;
- if (v_msec != (int32_t) v_msec) {
- ERR("32-bit milliseconds overflow in --blocking-timeout parameter: %s", opt_arg);
- ret = CMD_ERROR;
- goto end;
- }
- } else if (v != -1) {
- ERR("Invalid negative value passed as --blocking-timeout parameter; -1 (block forever) is the only valid negative value");
+
+ /*
+ * While LTTng-UST and LTTng-tools will accept a
+ * blocking timeout expressed in µs, the current
+ * tracer implementation relies on poll() which
+ * takes an "int timeout" parameter expressed in
+ * msec.
+ *
+ * Since the error reporting from the tracer is
+ * not precise, we perform this check here to
+ * provide a helpful error message in case of
+ * overflow.
+ *
+ * The setter (liblttng-ctl) also performs an
+ * equivalent check.
+ */
+ v_msec = v / 1000;
+ if (v_msec != (int32_t) v_msec) {
+ ERR("32-bit milliseconds overflow in --blocking-timeout parameter: %s", opt_arg);
+ ret = CMD_ERROR;
+ goto end;
}
+
opt_blocking_timeout.value = (int64_t) v;
opt_blocking_timeout.set = true;
- DBG("Channel blocking timeout set to %" PRId64 " (µs)",
- opt_blocking_timeout.value);
+ DBG("Channel blocking timeout set to %" PRId64 " %s%s",
+ opt_blocking_timeout.value,
+ USEC_UNIT,
+ opt_blocking_timeout.value == 0 ?
+ " (non-blocking)" : "");
break;
}
case OPT_USERSPACE:
ret = CMD_UNDEFINED;
goto end;
}
+
+ if (opt_arg) {
+ free(opt_arg);
+ opt_arg = NULL;
+ }
}
- ret = print_missing_or_multiple_domains(opt_kernel + opt_userspace);
+ ret = print_missing_or_multiple_domains(
+ opt_kernel + opt_userspace, false);
if (ret) {
ret = CMD_ERROR;
goto end;
}
+ if (chan_opts.attr.overwrite == 1 && opt_blocking_timeout.set &&
+ opt_blocking_timeout.value != 0) {
+ ERR("You cannot specify --overwrite and --blocking-timeout=N, "
+ "where N is different than 0");
+ ret = CMD_ERROR;
+ goto end;
+ }
+
/* Mi check */
if (lttng_opt_mi) {
writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
}
}
- opt_channels = (char*) poptGetArg(pc);
- if (opt_channels == NULL) {
- ERR("Missing channel name.\n");
+ arg_channel_list = poptGetArg(pc);
+ if (arg_channel_list == NULL) {
+ ERR("Missing channel name.");
+ ret = CMD_ERROR;
+ success = 0;
+ goto mi_closing;
+ }
+
+ channel_list = strdup(arg_channel_list);
+ if (channel_list == NULL) {
+ PERROR("Failed to copy channel name");
+ ret = CMD_ERROR;
+ success = 0;
+ goto mi_closing;
+ }
+
+ leftover = poptGetArg(pc);
+ if (leftover) {
+ ERR("Unknown argument: %s", leftover);
ret = CMD_ERROR;
success = 0;
goto mi_closing;
session_name = opt_session_name;
}
- command_ret = enable_channel(session_name);
+ command_ret = enable_channel(session_name, channel_list);
if (command_ret) {
success = 0;
}
free(session_name);
}
+ free(channel_list);
+
/* Overwrite ret if an error occurred when enable_channel */
ret = command_ret ? command_ret : ret;
poptFreeContext(pc);
+ free(opt_arg);
return ret;
}