#include <common/config/config.h>
#include <lttng/lttng.h>
+/* Don't want to reference snapshot-internal.h here */
+struct lttng_snapshot_output;
+
/* Instance of a machine interface writer. */
struct mi_writer {
struct config_writer *writer;
* Version information for the machine interface.
*/
struct mi_lttng_version {
- char version[NAME_MAX]; /* Version number of package */
+ char version[LTTNG_NAME_MAX]; /* Version number of package */
uint32_t version_major; /* LTTng-Tools major version number */
uint32_t version_minor; /* LTTng-Tools minor version number */
uint32_t version_patchlevel; /* LTTng-Tools patchlevel version number */
- char version_name[NAME_MAX];
- char package_url[NAME_MAX]; /* Define to the home page for this package. */
+ char version_commit[LTTNG_NAME_MAX]; /* Commit hash of the current version */
+ char version_name[LTTNG_NAME_MAX];
+ char package_url[LTTNG_NAME_MAX]; /* Define to the home page for this package. */
};
/* Strings related to command */
-const char * const mi_lttng_element_command;
-const char * const mi_lttng_element_command_version;
-const char * const mi_lttng_element_command_list;
-const char * const mi_lttng_element_command_name;
-const char * const mi_lttng_element_command_output;
-
-/* Strings related to command: version */
-const char * const mi_lttng_element_version;
-const char * const mi_lttng_element_version_str;
-const char * const mi_lttng_element_version_web;
-const char * const mi_lttng_element_version_major;
-const char * const mi_lttng_element_version_minor;
-const char * const mi_lttng_element_version_license;
-const char * const mi_lttng_element_version_patch_level;
-const char * const mi_lttng_element_version_description;
+extern const char * const mi_lttng_element_command;
+extern const char * const mi_lttng_element_command_action;
+extern const char * const mi_lttng_element_command_add_context;
+extern const char * const mi_lttng_element_command_calibrate;
+extern const char * const mi_lttng_element_command_create;
+extern const char * const mi_lttng_element_command_destroy;
+extern const char * const mi_lttng_element_command_disable_channel;
+extern const char * const mi_lttng_element_command_disable_event;
+extern const char * const mi_lttng_element_command_enable_channels;
+extern const char * const mi_lttng_element_command_enable_event;
+extern const char * const mi_lttng_element_command_list;
+extern const char * const mi_lttng_element_command_load;
+extern const char * const mi_lttng_element_command_name;
+extern const char * const mi_lttng_element_command_output;
+extern const char * const mi_lttng_element_command_save;
+extern const char * const mi_lttng_element_command_set_session;
+extern const char * const mi_lttng_element_command_snapshot;
+extern const char * const mi_lttng_element_command_snapshot_add;
+extern const char * const mi_lttng_element_command_snapshot_del;
+extern const char * const mi_lttng_element_command_snapshot_list;
+extern const char * const mi_lttng_element_command_snapshot_record;
+extern const char * const mi_lttng_element_command_start;
+extern const char * const mi_lttng_element_command_stop;
+extern const char * const mi_lttng_element_command_success;
+extern const char * const mi_lttng_element_command_track;
+extern const char * const mi_lttng_element_command_untrack;
+extern const char * const mi_lttng_element_command_version;
+
+/* Strings related to version command */
+extern const char * const mi_lttng_element_version;
+extern const char * const mi_lttng_element_version_commit;
+extern const char * const mi_lttng_element_version_description;
+extern const char * const mi_lttng_element_version_license;
+extern const char * const mi_lttng_element_version_major;
+extern const char * const mi_lttng_element_version_minor;
+extern const char * const mi_lttng_element_version_patch_level;
+extern const char * const mi_lttng_element_version_str;
+extern const char * const mi_lttng_element_version_web;
+
+/* String related to a lttng_event_field */
+extern const char * const mi_lttng_element_event_field;
+extern const char * const mi_lttng_element_event_fields;
+
+/* String related to lttng_event_context */
+extern const char * const mi_lttng_context_type_perf_counter;
+extern const char * const mi_lttng_context_type_perf_cpu_counter;
+extern const char * const mi_lttng_context_type_perf_thread_counter;
+
+/* String related to lttng_event_perf_counter_ctx */
+extern const char * const mi_lttng_element_perf_counter_context;
+
+/* Strings related to pid */
+extern const char * const mi_lttng_element_pid_id;
+
+/* Strings related to save command */
+extern const char * const mi_lttng_element_save;
+
+/* Strings related to load command */
+extern const char * const mi_lttng_element_load;
+
+/* General element of mi_lttng */
+extern const char * const mi_lttng_element_empty;
+extern const char * const mi_lttng_element_id;
+extern const char * const mi_lttng_element_nowrite;
+extern const char * const mi_lttng_element_success;
+extern const char * const mi_lttng_element_type_enum;
+extern const char * const mi_lttng_element_type_float;
+extern const char * const mi_lttng_element_type_integer;
+extern const char * const mi_lttng_element_type_other;
+extern const char * const mi_lttng_element_type_string;
+
+/* String related to loglevel */
+extern const char * const mi_lttng_loglevel_str_alert;
+extern const char * const mi_lttng_loglevel_str_crit;
+extern const char * const mi_lttng_loglevel_str_debug;
+extern const char * const mi_lttng_loglevel_str_debug_function;
+extern const char * const mi_lttng_loglevel_str_debug_line;
+extern const char * const mi_lttng_loglevel_str_debug_module;
+extern const char * const mi_lttng_loglevel_str_debug_process;
+extern const char * const mi_lttng_loglevel_str_debug_program;
+extern const char * const mi_lttng_loglevel_str_debug_system;
+extern const char * const mi_lttng_loglevel_str_debug_unit;
+extern const char * const mi_lttng_loglevel_str_emerg;
+extern const char * const mi_lttng_loglevel_str_err;
+extern const char * const mi_lttng_loglevel_str_info;
+extern const char * const mi_lttng_loglevel_str_notice;
+extern const char * const mi_lttng_loglevel_str_unknown;
+extern const char * const mi_lttng_loglevel_str_warning;
+
+/* String related to loglevel JUL */
+extern const char * const mi_lttng_loglevel_str_jul_all;
+extern const char * const mi_lttng_loglevel_str_jul_config;
+extern const char * const mi_lttng_loglevel_str_jul_fine;
+extern const char * const mi_lttng_loglevel_str_jul_finer;
+extern const char * const mi_lttng_loglevel_str_jul_finest;
+extern const char * const mi_lttng_loglevel_str_jul_info;
+extern const char * const mi_lttng_loglevel_str_jul_off;
+extern const char * const mi_lttng_loglevel_str_jul_severe;
+extern const char * const mi_lttng_loglevel_str_jul_warning;
+
+/* String related to loglevel Log4j */
+extern const char * const mi_lttng_loglevel_str_log4j_off;
+extern const char * const mi_lttng_loglevel_str_log4j_fatal;
+extern const char * const mi_lttng_loglevel_str_log4j_error;
+extern const char * const mi_lttng_loglevel_str_log4j_warn;
+extern const char * const mi_lttng_loglevel_str_log4j_info;
+extern const char * const mi_lttng_loglevel_str_log4j_debug;
+extern const char * const mi_lttng_loglevel_str_log4j_trace;
+extern const char * const mi_lttng_loglevel_str_log4j_all;
+
+/* String related to loglevel Python */
+extern const char * const mi_lttng_loglevel_str_python_critical;
+extern const char * const mi_lttng_loglevel_str_python_error;
+extern const char * const mi_lttng_loglevel_str_python_warning;
+extern const char * const mi_lttng_loglevel_str_python_info;
+extern const char * const mi_lttng_loglevel_str_python_debug;
+extern const char * const mi_lttng_loglevel_str_python_notset;
+
+/* String related to loglevel type */
+extern const char * const mi_lttng_loglevel_type_all;
+extern const char * const mi_lttng_loglevel_type_range;
+extern const char * const mi_lttng_loglevel_type_single;
+extern const char * const mi_lttng_loglevel_type_unknown;
+
+/* Sting related to lttng_calibrate */
+extern const char * const mi_lttng_element_calibrate;
+extern const char * const mi_lttng_element_calibrate_function;
+
+/* String related to a lttng_snapshot */
+extern const char * const mi_lttng_element_snapshot_ctrl_url;
+extern const char * const mi_lttng_element_snapshot_data_url;
+extern const char * const mi_lttng_element_snapshot_max_size;
+extern const char * const mi_lttng_element_snapshot_n_ptr;
+extern const char * const mi_lttng_element_snapshot_session_name;
+extern const char * const mi_lttng_element_snapshots;
+
+/* Utility string function */
+const char *mi_lttng_loglevel_string(int value, enum lttng_domain_type domain);
+const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value);
+const char *mi_lttng_eventfieldtype_string(enum lttng_event_field_type value);
+const char *mi_lttng_domaintype_string(enum lttng_domain_type value);
+const char *mi_lttng_buffertype_string(enum lttng_buffer_type value);
+const char *mi_lttng_calibratetype_string(enum lttng_calibrate_type val);
+
+/* String related to track/untrack command */
+const char * const mi_lttng_element_track_untrack_all_wildcard;
/*
* Create an instance of a machine interface writer.
* Open a command tag and add it's name node.
*
* writer An instance of a machine interface writer.
- *
* command The command name.
*
* Returns zero if the XML document could be closed cleanly.
* Open an element tag.
*
* writer An instance of a machine interface writer.
- *
* element_name Element tag name.
*
* Returns zero if the XML document could be closed cleanly.
int mi_lttng_writer_close_element(struct mi_writer *writer);
/*
- * Write an element of type unsigned int.
+ * Close multiple element.
*
* writer An instance of a machine interface writer.
+ * nb_element Number of elements.
*
- * element_name Element name.
+ * Returns zero if the XML document could be closed cleanly.
+ * Negative values indicate an error.
+ */
+int mi_lttng_close_multi_element(struct mi_writer *writer,
+ unsigned int nb_element);
+
+/*
+ * Write an element of type unsigned int.
*
+ * writer An instance of a machine interface writer.
+ * element_name Element name.
* value Unsigned int value of the element
*
* Returns zero if the element's value could be written.
* Write an element of type signed int.
*
* writer An instance of a machine interface writer.
- *
* element_name Element name.
- *
- * value Signed int value of the element
+ * value Signed int value of the element.
*
* Returns zero if the element's value could be written.
* Negative values indicate an error.
* Write an element of type boolean.
*
* writer An instance of a machine interface writer.
- *
* element_name Element name.
- *
- * value Boolean value of the element
+ * value Boolean value of the element.
*
* Returns zero if the element's value could be written.
* Negative values indicate an error.
* Write an element of type string.
*
* writer An instance of a machine interface writer.
- *
* element_name Element name.
- *
- * value String value of the element
+ * value String value of the element.
*
* Returns zero if the element's value could be written.
* Negative values indicate an error.
* Machine interface of struct version.
*
* writer An instance of a machine interface writer.
- *
* version Version struct.
- *
* lttng_description String value of the version description.
- *
* lttng_license String value of the version license.
*
* Returns zero if the element's value could be written.
const char *lttng_description, const char *lttng_license);
/*
- * Machine interface of struct session.
+ * Machine interface: open a sessions element.
*
- * writer An instance of a machine interface writer
+ * writer An instance of a machine interface writer.
*
- * session An instance of a session
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_sessions_open(struct mi_writer *writer);
+
+/*
+ * Machine interface of struct session.
*
- * isOpen Define if we close the session element
- * This should be use carefully and the client
- * need to close the session element.
- * Use case: nested addition information on a session
+ * writer An instance of a machine interface writer.
+ * session An instance of a session.
+ * is_open Defines whether or not the session element shall be closed.
+ * This should be used carefully and the client
+ * must close the session element.
+ * Use case: nested additional information on a session
* ex: domain,channel event.
- * 0-> False
- * 1-> True
*
* Returns zero if the element's value could be written.
* Negative values indicate an error.
*/
int mi_lttng_session(struct mi_writer *writer,
- struct lttng_session *session, int isOpen);
+ struct lttng_session *session, int is_open);
+
+/*
+ * Machine interface: open a domains element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_domains_open(struct mi_writer *writer);
+
+/*
+ * Machine interface of struct domain.
+ *
+ * writer An instance of a machine interface writer.
+ * domain An instance of a domain.
+ *
+ * is_open Defines whether or not the session element shall be closed.
+ * This should be used carefully and the client
+ * must close the domain element.
+ * Use case: nested addition information on a domain
+ * ex: channel event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_domain(struct mi_writer *writer,
+ struct lttng_domain *domain, int is_open);
+
+/*
+ * Machine interface: open a channels element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_channels_open(struct mi_writer *writer);
+
+/*
+ * Machine interface of struct channel.
+ *
+ * writer An instance of a machine interface writer.
+ * channel An instance of a channel.
+ *
+ * is_open Defines whether or not the session element shall be closed.
+ * This should be used carefully and the client
+ * must close the channel element.
+ * Use case: nested addition information on a channel.
+ * ex: channel event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_channel(struct mi_writer *writer,
+ struct lttng_channel *channel, int is_open);
+
+/*
+ * Machine interface of struct channel_attr.
+ *
+ * writer An instance of a machine interface writer.
+ * attr An instance of a channel_attr struct.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_channel_attr(struct mi_writer *writer,
+ struct lttng_channel_attr *attr);
+
+/*
+* Machine interface for event common attributes.
+*
+* writer An instance of a mi writer.
+* event single trace event.
+*
+* The common attribute are:
+* - mi event element
+* - event name
+* - event type
+* - enabled tag
+* - event filter
+*
+* Returns zero if the element's value could be written.
+* Negative values indicate an error.
+*/
+int mi_lttng_event_common_attributes(struct mi_writer *writer,
+ struct lttng_event *event);
+
+/*
+ * Machine interface for kernel tracepoint event with a loglevel.
+ *
+ * writer An instance of a mi writer.
+ * event single trace event.
+ * domain Event's domain
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event_tracepoint_loglevel(struct mi_writer *writer,
+ struct lttng_event *event, enum lttng_domain_type domain);
+
+/*
+ * Machine interface for kernel tracepoint event with no loglevel.
+ *
+ * writer An instance of a mi writer.
+ * event single trace event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event_tracepoint_no_loglevel(struct mi_writer *writer,
+ struct lttng_event *event);
+
+/*
+ * Machine interface for kernel function and probe event.
+ *
+ * writer An instance of a mi writer.
+ * event single trace event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event_function_probe(struct mi_writer *writer,
+ struct lttng_event *event);
+
+/*
+ * Machine interface for kernel function entry event.
+ *
+ * writer An instance of a mi writer.
+ * event single trace event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event_function_entry(struct mi_writer *writer,
+ struct lttng_event *event);
+
+/*
+ * Machine interface: open an events element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_events_open(struct mi_writer *writer);
+
+/*
+ * Machine interface for printing an event.
+ * The trace event type currently supported are:
+ * TRACEPOINT,
+ * PROBE,
+ * FUNCTION,
+ * FUNCTION_ENTRY,
+ * SYSCALL
+ *
+ * writer An instance of a mi writer.
+ * event single trace event.
+ * is_open Defines whether or not the session element shall be closed.
+ * This should be used carefully and the client
+ * must close the event element.
+ * Use case: nested additional information
+ * domain Event's domain
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event(struct mi_writer *writer, struct lttng_event *event,
+ int is_open, enum lttng_domain_type domain);
+
+/*
+ * Machine interface for struct lttng_event_field.
+ *
+ * writer An instance of a mi writer.
+ * field An event_field instance.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event_field(struct mi_writer *writer,
+ struct lttng_event_field *field);
+
+/*
+ * Machine interface: open a event_fields element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element have be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_event_fields_open(struct mi_writer *writer);
+
+/*
+ * Machine interface: open a trackers element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_trackers_open(struct mi_writer *writer);
+
+/*
+ * Machine interface: open a pid_tracker element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ *
+ * Note: A targets element is also opened for each tracker definition
+ */
+int mi_lttng_pid_tracker_open(struct mi_writer *writer);
+
+/*
+ * Machine interface: open a PIDs element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_pids_open(struct mi_writer *writer);
+
+/*
+ * Machine interface: open a processes element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_processes_open(struct mi_writer *writer);
+
+/*
+ * Machine interface of a Process.
+ *
+ * writer An instance of a machine interface writer.
+ * pid A PID.
+ *
+ * is_open Defines whether or not the session element shall be closed.
+ * This should be used carefully and the client
+ * must close the pid element.
+ * Use case: nested addition information on a domain
+ * ex: channel event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_process(struct mi_writer *writer, pid_t pid , const char *name,
+ int is_open);
+
+/*
+ * TODO: move pid of lttng list -u to process semantic on mi api bump
+ * Machine interface of a Process.
+ *
+ * writer An instance of a machine interface writer.
+ * pid A PID.
+ *
+ * is_open Defines whether or not the session element shall be closed.
+ * This should be used carefully and the client
+ * must close the pid element.
+ * Use case: nested addition information on a domain
+ * ex: channel event.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *name,
+ int is_open);
+/*
+ * Machine interface: open a targets element.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_targets_open(struct mi_writer *writer);
+
+/*
+ * Machine interface for track/untrack a pid_target
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_pid_target(struct mi_writer *writer, pid_t pid, int is_open);
+
+/*
+ * Machine interface for struct lttng_calibrate.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * calibrate A lttng_calibrate instance.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_calibrate(struct mi_writer *writer,
+ struct lttng_calibrate *calibrate);
+
+/*
+ * Machine interface of a context.
+ *
+ * writer An instance of a machine interface writer
+ *
+ * context An instance of a lttng_event_context
+ *
+ * is_open Define if we close the context element
+ * This should be used carefully and the client
+ * need to close the context element.
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_context(struct mi_writer *writer,
+ struct lttng_event_context *context, int is_open);
+
+/*
+ * Machine interface of a perf_counter_context.
+ *
+ * writer An instance of a machine interface writer
+ *
+ * contest An instance of a lttng_event_perf_counter_ctx
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_perf_counter_context(struct mi_writer *writer,
+ struct lttng_event_perf_counter_ctx *perf_context);
+
+/*
+ * Machine interface of the snapshot list_output.
+ * It specifies the session for which we are listing snapshots,
+ * and it opens a snapshots element to list a sequence
+ * of snapshots.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * session_name: Snapshot output for session "session_name".
+ *
+ * Note: The client has to close the session and the snapshots elements after
+ * having listed every lttng_snapshot_output.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_snapshot_output_session_name(struct mi_writer *writer,
+ const char *session_name);
+
+/*
+ * Machine interface of the snapshot output.
+ * The machine interface serializes the following attributes:
+ * - id: ID of the snapshot output.
+ * - name: Name of the output.
+ * - data_url : Destination of the output.
+ * - ctrl_url: Destination of the output.
+ * - max_size: total size of all stream combined.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * output: A list of snapshot_output.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_snapshot_list_output(struct mi_writer *writer,
+ struct lttng_snapshot_output *output);
+
+/*
+ * Machine interface of the output of the command snapshot del output
+ * when deleting a snapshot either by id or by name.
+ * If the snapshot was found and successfully deleted using its id,
+ * it return the id of the snapshot and the current session name on which it
+ * was attached.
+ *
+ * Otherwise, it do the same process with the name of the snapshot, if the
+ * snapshot output id is undefined.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * id: ID of the snapshot output.
+ *
+ * name: Name of the snapshot.
+ *
+ * current_session_name: Session to which the snapshot belongs.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_snapshot_del_output(struct mi_writer *writer, int id,
+ const char *name, const char *current_session_name);
+
+/*
+ * Machine interface of the output of the command snapshot add output
+ * when adding a snapshot from a user URL.
+ *
+ * If the snapshot was successfully added, the machine interface lists
+ * these information:
+ * - id: ID of the newly add snapshot output.
+ * - current_session_name: Name of the session to which the output was added.
+ * - ctrl_url: Destination of the output.
+ * - max_size: total size of all stream combined.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * current_session_name: Session to which the snapshot belongs.
+ *
+ * n_ptr:
+ *
+ * output: iterator over a lttng_snapshot_output_list which contain
+ * the snapshot output informations.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_snapshot_add_output(struct mi_writer *writer,
+ const char *current_session_name, const char *n_ptr,
+ struct lttng_snapshot_output *output);
+
+/*
+ * Machine interface of the output of the command snapshot
+ * record from a URL (if given).
+ *
+ * If the snapshot is successfully recorded from a url, the machine interface
+ * output the following information:
+ * - url: Destination of the output stored in the snapshot.
+ *
+ * Otherwise, the machine interface output the data and ctrl url received
+ * from the command-line.
+ *
+ * writer An instance of a machine interface writer.
+ *
+ * current_session_name: Snapshot record for session "current_session_name".
+ *
+ * ctrl_url, data_url: Destination of the output receive from the command-line.
+ *
+ * Returns zero if the element's value could be written.
+ * Negative values indicate an error.
+ */
+int mi_lttng_snapshot_record(struct mi_writer *writer,
+ const char *current_session_name, const char *url,
+ const char *cmdline_ctrl_url, const char *cmdline_data_url);
#endif /* _MI_LTTNG_H */
projects / lttng-tools.git / blobdiff