*
* 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; either version 2
- * of the License, or (at your option) any later version.
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
#include <sys/types.h>
#include <unistd.h>
-#include "cmd.h"
-#include "conf.h"
-#include "utils.h"
+#include "../cmd.h"
+#include "../conf.h"
+#include "../utils.h"
static char *opt_channels;
-static char *opt_kernel;
-static int opt_pid_all;
+static int opt_kernel;
+static char *opt_session_name;
static int opt_userspace;
+static char *opt_cmd_name;
static pid_t opt_pid;
enum {
OPT_USERSPACE,
};
+static struct lttng_handle *handle;
+
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
+ {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0},
{"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0},
- {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0},
- {"all", 0, POPT_ARG_VAL, &opt_pid_all, 1, 0, 0},
+ {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0},
{"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0}
};
{
fprintf(ofp, "usage: lttng disable-channel NAME[,NAME2,...] [options]\n");
fprintf(ofp, "\n");
- fprintf(ofp, " -h, --help Show this help\n");
- fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n");
- fprintf(ofp, " -u, --userspace Apply for the user-space tracer\n");
- fprintf(ofp, " --all If -u, apply on all traceable apps\n");
- fprintf(ofp, " -p, --pid PID If -u, apply on a specific PID\n");
+ fprintf(ofp, " -h, --help Show this help\n");
+ fprintf(ofp, " -s, --session Apply on session name\n");
+ fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n");
+ fprintf(ofp, " -u, --userspace [CMD] Apply for the user-space tracer\n");
+ fprintf(ofp, " If no CMD, the domain used is UST global\n");
+ fprintf(ofp, " or else the domain is UST EXEC_NAME\n");
+ fprintf(ofp, " -p, --pid PID If -u, apply to specific PID (domain: UST PID)\n");
fprintf(ofp, "\n");
}
/*
- * disable_channels
- *
- * Disabling channel using the lttng API.
+ * Disabling channel using the lttng API.
*/
-static int disable_channels(void)
+static int disable_channels(char *session_name)
{
int ret = CMD_SUCCESS;
char *channel_name;
+ struct lttng_domain dom;
+
+ if (opt_kernel) {
+ dom.type = LTTNG_DOMAIN_KERNEL;
+ } else if (opt_pid != 0) {
+ dom.type = LTTNG_DOMAIN_UST_PID;
+ dom.attr.pid = opt_pid;
+ DBG("PID %d set to lttng handle", opt_pid);
+ } else if (opt_userspace && opt_cmd_name == NULL) {
+ dom.type = LTTNG_DOMAIN_UST;
+ } else if (opt_userspace && opt_cmd_name != NULL) {
+ dom.type = LTTNG_DOMAIN_UST_EXEC_NAME;
+ strncpy(dom.attr.exec_name, opt_cmd_name, NAME_MAX);
+ } else {
+ ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
+ ret = CMD_NOT_IMPLEMENTED;
+ goto error;
+ }
- if (set_session_name() < 0) {
- ret = CMD_ERROR;
+ handle = lttng_create_handle(session_name, &dom);
+ if (handle == NULL) {
+ ret = -1;
goto error;
}
/* Strip channel list */
channel_name = strtok(opt_channels, ",");
while (channel_name != NULL) {
- /* Kernel tracer action */
- if (opt_kernel) {
- DBG("Disabling kernel channel %s", channel_name);
- ret = lttng_kernel_disable_channel(channel_name);
- if (ret < 0) {
- goto error;
- } else {
- MSG("Kernel channel disabled %s", channel_name);
- }
- } else if (opt_userspace) { /* User-space tracer action */
- /*
- * TODO: Waiting on lttng UST 2.0
- */
- if (opt_pid_all) {
- } else if (opt_pid != 0) {
- }
- ret = CMD_NOT_IMPLEMENTED;
+ DBG("Disabling channel %s", channel_name);
+
+ ret = lttng_disable_channel(handle, channel_name);
+ if (ret < 0) {
goto error;
} else {
- ERR("Please specify a tracer (kernel or user-space)");
- goto error;
+ MSG("%s channel %s disabled for session %s",
+ opt_kernel ? "Kernel" : "UST", channel_name,
+ session_name);
}
/* Next channel */
}
error:
+ lttng_destroy_handle(handle);
+
return ret;
}
{
int opt, ret;
static poptContext pc;
+ char *session_name = NULL;
pc = poptGetContext(NULL, argc, argv, long_options, 0);
poptReadDefaultConfig(pc, 0);
goto end;
}
- ret = disable_channels();
+ if (!opt_session_name) {
+ session_name = get_session_name();
+ if (session_name == NULL) {
+ ret = -1;
+ goto end;
+ }
+ } else {
+ session_name = opt_session_name;
+ }
+
+ ret = disable_channels(session_name);
end:
return ret;