X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Fcommands%2Fdisable_events.c;fp=lttng%2Fcommands%2Fdisable_events.c;h=0000000000000000000000000000000000000000;hp=5247110ef3ca67a0c514a6110b0762564f8f8eb3;hb=10a8a2237343699e3923d87e24dbf2d7fe225377;hpb=734f79bf717d87817623d382c59086dc9e8ef610 diff --git a/lttng/commands/disable_events.c b/lttng/commands/disable_events.c deleted file mode 100644 index 5247110ef..000000000 --- a/lttng/commands/disable_events.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * Copyright (C) 2011 - David Goulet - * - * 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 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. - */ - -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include - -#include "../cmd.h" -#include "../conf.h" -#include "../utils.h" - -static char *opt_event_list; -static int opt_kernel; -static char *opt_channel_name; -static char *opt_session_name; -static int opt_userspace; -static char *opt_cmd_name; -static int opt_disable_all; -static pid_t opt_pid; - -enum { - OPT_HELP = 1, - 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}, - {"all-events", 'a', POPT_ARG_VAL, &opt_disable_all, 1, 0, 0}, - {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, - {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 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} -}; - -/* - * usage - */ -static void usage(FILE *ofp) -{ - fprintf(ofp, "usage: lttng disable-event NAME[,NAME2,...] [options]\n"); - fprintf(ofp, "\n"); - fprintf(ofp, " -h, --help Show this help\n"); - fprintf(ofp, " -s, --session Apply on session name\n"); - fprintf(ofp, " -c, --channel Apply on this channel\n"); - fprintf(ofp, " -a, --all-events Disable all tracepoints\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_events - * - * Disabling event using the lttng API. - */ -static int disable_events(char *session_name) -{ - int err, ret = CMD_SUCCESS; - char *event_name, *channel_name = NULL; - struct lttng_domain dom; - - if (opt_channel_name == NULL) { - err = asprintf(&channel_name, DEFAULT_CHANNEL_NAME); - if (err < 0) { - ret = CMD_FATAL; - goto error; - } - } else { - channel_name = opt_channel_name; - } - - if (opt_kernel && opt_userspace) { - ERR("Can't use -k/--kernel and -u/--userspace together"); - ret = CMD_FATAL; - goto error; - } - - 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; - DBG("UST global domain selected"); - } 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); - dom.attr.exec_name[NAME_MAX - 1] = '\0'; - } else { - ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); - ret = CMD_NOT_IMPLEMENTED; - goto error; - } - - handle = lttng_create_handle(session_name, &dom); - if (handle == NULL) { - ret = -1; - goto error; - } - - if (opt_disable_all) { - ret = lttng_disable_event(handle, NULL, channel_name); - if (ret < 0) { - goto error; - } - - MSG("All %s events are disabled in channel %s", - opt_kernel ? "kernel" : "UST", channel_name); - goto end; - } - - /* Strip event list */ - event_name = strtok(opt_event_list, ","); - while (event_name != NULL) { - /* Kernel tracer action */ - if (opt_kernel) { - DBG("Disabling kernel event %s in channel %s", - event_name, channel_name); - } else if (opt_userspace) { /* User-space tracer action */ - if (opt_cmd_name != NULL || opt_pid) { - MSG("Only supporting tracing all UST processes (-u) for now."); - ret = CMD_NOT_IMPLEMENTED; - goto error; - } - DBG("Disabling UST event %s in channel %s", - event_name, channel_name); - } else { - ERR("Please specify a tracer (-k/--kernel or -u/--userspace)"); - goto error; - } - - ret = lttng_disable_event(handle, event_name, channel_name); - if (ret < 0) { - MSG("Unable to disable %s event %s in channel %s", - opt_kernel ? "kernel" : "UST", event_name, - channel_name); - } else { - MSG("%s event %s disabled in channel %s", - opt_kernel ? "kernel" : "UST", event_name, - channel_name); - } - - /* Next event */ - event_name = strtok(NULL, ","); - } - -end: -error: - if (opt_channel_name == NULL) { - free(channel_name); - } - lttng_destroy_handle(handle); - - return ret; -} - -/* - * cmd_disable_events - * - * Disable event to trace session - */ -int cmd_disable_events(int argc, const char **argv) -{ - int opt, ret; - static poptContext pc; - char *session_name = NULL; - - pc = poptGetContext(NULL, argc, argv, long_options, 0); - poptReadDefaultConfig(pc, 0); - - while ((opt = poptGetNextOpt(pc)) != -1) { - switch (opt) { - case OPT_HELP: - usage(stderr); - ret = CMD_SUCCESS; - goto end; - case OPT_USERSPACE: - opt_userspace = 1; - break; - default: - usage(stderr); - ret = CMD_UNDEFINED; - goto end; - } - } - - opt_event_list = (char*) poptGetArg(pc); - if (opt_event_list == NULL && opt_disable_all == 0) { - ERR("Missing event name(s).\n"); - usage(stderr); - ret = CMD_SUCCESS; - goto end; - } - - 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_events(session_name); - -end: - return ret; -}