X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Fcommands%2Fadd_channel.c;fp=lttng%2Fcommands%2Fadd_channel.c;h=0000000000000000000000000000000000000000;hp=eeb4b253420be6c8af6f5720b43d69253effcfec;hb=7d29a2477524f7ee2ee46a94e538e6141f5ecc0e;hpb=65beb5ffdbe6e17dbd0268aad3c32b02322cd9ad diff --git a/lttng/commands/add_channel.c b/lttng/commands/add_channel.c deleted file mode 100644 index eeb4b2534..000000000 --- a/lttng/commands/add_channel.c +++ /dev/null @@ -1,221 +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; either version 2 - * of the License, or (at your option) any later version. - * - * 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_channel_name; -static char *opt_kernel; -static char *opt_cmd_name; -static char *opt_session_name; -static int opt_pid_all; -static int opt_userspace; -static pid_t opt_pid; -static struct lttng_channel chan; - -enum { - OPT_HELP = 1, - OPT_DISCARD, - OPT_OVERWRITE, - OPT_SUBBUF_SIZE, - OPT_NUM_SUBBUF, - OPT_SWITCH_TIMER, - OPT_READ_TIMER, - OPT_USERSPACE, -}; - -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_STRING | POPT_ARGFLAG_OPTIONAL, 0, OPT_USERSPACE, 0, 0}, - {"all", 0, POPT_ARG_VAL, &opt_pid_all, 1, 0, 0}, - {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, - {"discard", 0, POPT_ARG_NONE, 0, OPT_DISCARD, 0, 0}, - {"overwrite", 0, POPT_ARG_NONE, 0, OPT_OVERWRITE, 0, 0}, - {"subbuf_size", 0, POPT_ARG_DOUBLE, 0, OPT_SUBBUF_SIZE, 0, 0}, - {"num_subbuf", 0, POPT_ARG_INT, 0, OPT_NUM_SUBBUF, 0, 0}, - {"switch_timer", 0, POPT_ARG_INT, 0, OPT_SWITCH_TIMER, 0, 0}, - {"read_timer", 0, POPT_ARG_INT, 0, OPT_READ_TIMER, 0, 0}, - {0, 0, 0, 0, 0, 0, 0} -}; - -/* - * usage - */ -static void usage(FILE *ofp) -{ - fprintf(ofp, "usage: lttng add-channel NAME [options] [channel_options]\n"); - fprintf(ofp, "\n"); - fprintf(ofp, " -h, --help Show this help\n"); - fprintf(ofp, " -s, --session Apply on session name\n"); - fprintf(ofp, " -k, --kernel Apply on the kernel tracer\n"); - fprintf(ofp, " -u, --userspace [CMD] Apply on 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, "\n"); - fprintf(ofp, "Channel options:\n"); - fprintf(ofp, " --discard Discard event when buffers are full (default)\n"); - fprintf(ofp, " --overwrite Flight recorder mode\n"); - fprintf(ofp, " --subbuf_size Subbuffer size in bytes (default: 4096)\n"); - fprintf(ofp, " --num_subbuf Number of subbufers (default: 2)\n"); - fprintf(ofp, " --switch_timer Switch timer interval in usec (default: 0)\n"); - fprintf(ofp, " --read_timer Read timer interval in usec (default: 200)\n"); - fprintf(ofp, "\n"); -} - -/* - * add_channel - * - * Adding channel using the lttng API. - */ -static int add_channel(void) -{ - int ret = CMD_SUCCESS; - - if (set_session_name(opt_session_name) < 0) { - ret = CMD_ERROR; - goto error; - } - - /* Copy channel name and normalize it */ - strncpy(chan.name, opt_channel_name, NAME_MAX); - chan.name[NAME_MAX - 1] = '\0'; - - /* Kernel tracer action */ - if (opt_kernel) { - /* Create kernel channel */ - ret = lttng_kernel_create_channel(&chan); - if (ret < 0) { - goto error; - } - } 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; - goto error; - } else { - ERR("Please specify a tracer (kernel or user-space)"); - goto error; - } - - MSG("Channel %s created", opt_channel_name); - -error: - return ret; -} - -/* - * init_channel_config - * - * Default value for channel configuration. - */ -static void init_channel_config(void) -{ - chan.attr.overwrite = DEFAULT_CHANNEL_OVERWRITE; - chan.attr.subbuf_size = DEFAULT_CHANNEL_SUBBUF_SIZE; - chan.attr.num_subbuf = DEFAULT_CHANNEL_SUBBUF_NUM; - chan.attr.switch_timer_interval = DEFAULT_CHANNEL_SWITCH_TIMER; - chan.attr.read_timer_interval = DEFAULT_CHANNEL_READ_TIMER; - chan.attr.output = DEFAULT_KERNEL_CHANNEL_OUTPUT; -} - -/* - * cmd_add_channel - * - * Add channel to trace session - */ -int cmd_add_channel(int argc, const char **argv) -{ - int opt, ret; - static poptContext pc; - - init_channel_config(); - - 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; - opt_cmd_name = poptGetOptArg(pc); - break; - case OPT_DISCARD: - chan.attr.overwrite = 0; - DBG("Channel set to discard"); - break; - case OPT_OVERWRITE: - chan.attr.overwrite = 1; - DBG("Channel set to overwrite"); - break; - case OPT_SUBBUF_SIZE: - chan.attr.subbuf_size = atol(poptGetOptArg(pc)); - DBG("Channel subbuf size set to %lu", chan.attr.subbuf_size); - break; - case OPT_NUM_SUBBUF: - chan.attr.num_subbuf = atoi(poptGetOptArg(pc)); - DBG("Channel subbuf num set to %lu", chan.attr.num_subbuf); - break; - case OPT_SWITCH_TIMER: - chan.attr.switch_timer_interval = atoi(poptGetOptArg(pc)); - DBG("Channel switch timer interval set to %d", chan.attr.switch_timer_interval); - break; - case OPT_READ_TIMER: - chan.attr.read_timer_interval = atoi(poptGetOptArg(pc)); - DBG("Channel read timer interval set to %d", chan.attr.read_timer_interval); - break; - default: - usage(stderr); - ret = CMD_UNDEFINED; - goto end; - } - } - - opt_channel_name = (char*) poptGetArg(pc); - if (opt_channel_name == NULL) { - ERR("Missing channel name.\n"); - usage(stderr); - ret = CMD_SUCCESS; - goto end; - } - - ret = add_channel(); - -end: - return ret; -}