scope-exit: Clarify scope_exit noexcept requirement

[lttng-tools.git] / include / lttng / channel.h

diff --git a/include/lttng/channel.h b/include/lttng/channel.h
index f3241ed30847af1886801ea728060a51ef2b2813..3d175b8a4b7312fcc94349a740d2cc81831b486a 100644 (file)
--- a/include/lttng/channel.h
+++ b/include/lttng/channel.h
@@ -10,6 +10,8 @@
 
 #include <lttng/domain.h>
 #include <lttng/event.h>
+#include <lttng/lttng-export.h>
+
 #include <stdint.h>
 
 #ifdef __cplusplus
@@ -21,19 +23,19 @@ extern "C" {
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_CHANNEL_ATTR_PADDING1        LTTNG_SYMBOL_NAME_LEN + 12
+#define LTTNG_CHANNEL_ATTR_PADDING1 LTTNG_SYMBOL_NAME_LEN + 12
 struct lttng_channel_attr {
-       int overwrite;                      /* -1: session default, 1: overwrite, 0: discard */
-       uint64_t subbuf_size;               /* bytes, power of 2 */
-       uint64_t num_subbuf;                /* power of 2 */
+       int overwrite; /* -1: session default, 1: overwrite, 0: discard */
+       uint64_t subbuf_size; /* bytes, power of 2 */
+       uint64_t num_subbuf; /* power of 2 */
        unsigned int switch_timer_interval; /* usec */
-       unsigned int read_timer_interval;   /* usec */
-       enum lttng_event_output output;     /* splice, mmap */
+       unsigned int read_timer_interval; /* usec */
+       enum lttng_event_output output; /* splice, mmap */
        /* LTTng 2.1 padding limit */
-       uint64_t tracefile_size;            /* bytes */
-       uint64_t tracefile_count;           /* number of tracefiles */
+       uint64_t tracefile_size; /* bytes */
+       uint64_t tracefile_count; /* number of tracefiles */
        /* LTTng 2.3 padding limit */
-       unsigned int live_timer_interval;   /* usec */
+       unsigned int live_timer_interval; /* usec */
        /* LTTng 2.7 padding limit */
        uint32_t align_to_64;
        union {
@@ -49,7 +51,7 @@ struct lttng_channel_attr {
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_CHANNEL_PADDING1             16
+#define LTTNG_CHANNEL_PADDING1 16
 struct lttng_channel {
        char name[LTTNG_SYMBOL_NAME_LEN];
        uint32_t enabled;
@@ -60,11 +62,11 @@ struct lttng_channel {
 
 /*
  */
-extern struct lttng_channel *lttng_channel_create(struct lttng_domain *domain);
+LTTNG_EXPORT extern struct lttng_channel *lttng_channel_create(struct lttng_domain *domain);
 
 /*
  */
-extern void lttng_channel_destroy(struct lttng_channel *channel);
+LTTNG_EXPORT extern void lttng_channel_destroy(struct lttng_channel *channel);
 
 /*
  * List the channel(s) of a session.
@@ -74,8 +76,8 @@ extern void lttng_channel_destroy(struct lttng_channel *channel);
  * Return the size (number of entries) of the "lttng_channel" array. Caller
  * must free channels. On error, a negative LTTng error code is returned.
  */
-extern int lttng_list_channels(struct lttng_handle *handle,
-               struct lttng_channel **channels);
+LTTNG_EXPORT extern int lttng_list_channels(struct lttng_handle *handle,
+                                           struct lttng_channel **channels);
 
 /*
  * Create or enable a channel.
@@ -84,8 +86,8 @@ extern int lttng_list_channels(struct lttng_handle *handle,
  *
  * Return 0 on success else a negative LTTng error code.
  */
-extern int lttng_enable_channel(struct lttng_handle *handle,
-               struct lttng_channel *chan);
+LTTNG_EXPORT extern int lttng_enable_channel(struct lttng_handle *handle,
+                                            struct lttng_channel *chan);
 
 /*
  * Disable channel.
@@ -94,8 +96,7 @@ extern int lttng_enable_channel(struct lttng_handle *handle,
  *
  * Return 0 on success else a negative LTTng error code.
  */
-extern int lttng_disable_channel(struct lttng_handle *handle,
-               const char *name);
+LTTNG_EXPORT extern int lttng_disable_channel(struct lttng_handle *handle, const char *name);
 
 /*
  * Set the default channel attributes for a specific domain and an allocated
@@ -103,36 +104,36 @@ extern int lttng_disable_channel(struct lttng_handle *handle,
  *
  * If one or both arguments are NULL, nothing happens.
  */
-extern void lttng_channel_set_default_attr(struct lttng_domain *domain,
-               struct lttng_channel_attr *attr);
+LTTNG_EXPORT extern void lttng_channel_set_default_attr(struct lttng_domain *domain,
+                                                       struct lttng_channel_attr *attr);
 
 /*
  * Get the discarded event count of a specific LTTng channel.
  *
  * Returns 0 on success, or a negative LTTng error code on error.
  */
-extern int lttng_channel_get_discarded_event_count(struct lttng_channel *chan,
-               uint64_t *discarded_events);
+LTTNG_EXPORT extern int lttng_channel_get_discarded_event_count(struct lttng_channel *chan,
+                                                               uint64_t *discarded_events);
 
 /*
  * Get the lost packet count of a specific LTTng channel.
  *
  * Returns 0 on success, or a negative LTTng error code on error.
  */
-extern int lttng_channel_get_lost_packet_count(struct lttng_channel *chan,
-               uint64_t *lost_packets);
+LTTNG_EXPORT extern int lttng_channel_get_lost_packet_count(struct lttng_channel *chan,
+                                                           uint64_t *lost_packets);
 
-extern int lttng_channel_get_monitor_timer_interval(struct lttng_channel *chan,
-               uint64_t *monitor_timer_interval);
+LTTNG_EXPORT extern int lttng_channel_get_monitor_timer_interval(struct lttng_channel *chan,
+                                                                uint64_t *monitor_timer_interval);
 
-extern int lttng_channel_set_monitor_timer_interval(struct lttng_channel *chan,
-               uint64_t monitor_timer_interval);
+LTTNG_EXPORT extern int lttng_channel_set_monitor_timer_interval(struct lttng_channel *chan,
+                                                                uint64_t monitor_timer_interval);
 
-extern int lttng_channel_get_blocking_timeout(struct lttng_channel *chan,
-               int64_t *blocking_timeout);
+LTTNG_EXPORT extern int lttng_channel_get_blocking_timeout(struct lttng_channel *chan,
+                                                          int64_t *blocking_timeout);
 
-extern int lttng_channel_set_blocking_timeout(struct lttng_channel *chan,
-               int64_t blocking_timeout);
+LTTNG_EXPORT extern int lttng_channel_set_blocking_timeout(struct lttng_channel *chan,
+                                                          int64_t blocking_timeout);
 
 #ifdef __cplusplus
 }