* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <inttypes.h>
#include <popt.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
-#include <common/config/config.h>
+#include <common/mi-lttng.h>
+#include <common/config/session-config.h>
+
#include "../command.h"
static char *opt_input_path;
-static char *opt_session_name;
static int opt_force;
static int opt_load_all;
+static const char *session_name;
+
enum {
OPT_HELP = 1,
OPT_ALL,
OPT_FORCE,
+ OPT_LIST_OPTIONS,
};
+static struct mi_writer *writer;
+
static struct poptOption load_opts[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
{"all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0},
- {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0},
{"input-path", 'i', POPT_ARG_STRING, &opt_input_path, 0, 0, 0},
{"force", 'f', POPT_ARG_NONE, 0, OPT_FORCE, 0, 0},
+ {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
{0, 0, 0, 0, 0, 0, 0}
};
*/
static void usage(FILE *ofp)
{
- fprintf(ofp, "usage: lttng load [OPTIONS]\n");
+ fprintf(ofp, "usage: lttng load [OPTIONS] [SESSION]\n");
fprintf(ofp, "\n");
fprintf(ofp, "Options:\n");
- fprintf(ofp, " -h, --help Show this help\n");
- fprintf(ofp, " -a, --all Load all sessions (default)\n");
- fprintf(ofp, " -s, --session Load a specific session\n");
- fprintf(ofp, " -i, --input-path Input path of the session configuration(s)\n");
- fprintf(ofp, " -f, --force Override existing session configuration(s)\n");
+ fprintf(ofp, " -h, --help Show this help\n");
+ fprintf(ofp, " -a, --all Load all sessions (default)\n");
+ fprintf(ofp, " -i, --input-path PATH Input path of the session file(s).\n");
+ fprintf(ofp, " If a directory, load all files in it\n");
+ fprintf(ofp, " else try to load the given file.\n");
+ fprintf(ofp, " -f, --force Override existing session(s).\n");
+ fprintf(ofp, " This will destroy existing session(s)\n");
+ fprintf(ofp, " before creating new one(s).\n");
+}
+
+static int mi_partial_session(const char *session_name)
+{
+ int ret;
+ assert(writer);
+ assert(session_name);
+
+ /* Open session element */
+ ret = mi_lttng_writer_open_element(writer, config_element_session);
+ if (ret) {
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_string(writer, config_element_name,
+ session_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Closing session element */
+ ret = mi_lttng_writer_close_element(writer);
+end:
+ return ret;
+}
+
+/*
+ * Mi print of load command
+ */
+static int mi_load_print(const char *session_name)
+{
+ int ret;
+ assert(writer);
+
+ if (opt_load_all) {
+ /* We use a wildcard to represent all sessions */
+ session_name = "*";
+ }
+
+ /* Print load element */
+ ret = mi_lttng_writer_open_element(writer, mi_lttng_element_load);
+ if (ret) {
+ goto end;
+ }
+
+ /* Print session element */
+ ret = mi_partial_session(session_name);
+ if (ret) {
+ goto end;
+ }
+
+ /* Path element */
+ if (opt_input_path) {
+ ret = mi_lttng_writer_write_element_string(writer, config_element_path,
+ opt_input_path);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ /* Close load element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
}
/*
*/
int cmd_load(int argc, const char **argv)
{
- int ret = CMD_SUCCESS;
+ int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success;
int opt;
poptContext pc;
case OPT_ALL:
opt_load_all = 1;
break;
+ case OPT_LIST_OPTIONS:
+ list_cmd_options(stdout, load_opts);
+ goto end;
case OPT_FORCE:
opt_force = 1;
break;
}
}
- if (opt_session_name && opt_load_all) {
- WARN("Conflicting session options, loading session %s",
- opt_session_name);
+ if (!opt_load_all) {
+ session_name = poptGetArg(pc);
+ if (session_name) {
+ DBG2("Loading session name: %s", session_name);
+ } else {
+ /* Default to load_all */
+ opt_load_all = 1;
+ }
}
- ret = config_load_session(opt_input_path, opt_session_name, opt_force);
- if (ret) {
- ret = CMD_ERROR;
+ /* Mi check */
+ if (lttng_opt_mi) {
+ writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
+ if (!writer) {
+ ret = -LTTNG_ERR_NOMEM;
+ goto end;
+ }
+
+ /* Open command element */
+ ret = mi_lttng_writer_command_open(writer,
+ mi_lttng_element_command_load);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Open output element */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_command_output);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
+ command_ret = config_load_session(opt_input_path, session_name, opt_force, 0);
+ if (command_ret) {
+ ERR("%s", lttng_strerror(command_ret));
+ success = 0;
+ } else {
+ if (opt_load_all) {
+ MSG("All sessions have been loaded successfully");
+ } else if (session_name) {
+ ret = config_init((char *)session_name);
+ if (ret < 0) {
+ ret = CMD_WARNING;
+ }
+ MSG("Session %s has been loaded successfully", session_name);
+ } else {
+ MSG("Session has been loaded successfully");
+ }
+ success = 1;
+ }
+
+ /* Mi Printing and closing */
+ if (lttng_opt_mi) {
+ /* Mi print */
+ ret = mi_load_print(session_name);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Close output element */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Success ? */
+ ret = mi_lttng_writer_write_element_bool(writer,
+ mi_lttng_element_command_success, success);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Command element close */
+ ret = mi_lttng_writer_command_close(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
}
end:
+ if (writer && mi_lttng_writer_destroy(writer)) {
+ /* Preserve original error code */
+ ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL;
+ }
+
+ /* Overwrite ret if the was an error with the load command */
+ ret = command_ret ? -command_ret : ret;
+
poptFreeContext(pc);
return ret;
}
projects / lttng-tools.git / blobdiff