X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fchannel.h;h=3d175b8a4b7312fcc94349a740d2cc81831b486a;hb=c91ccadee5bfbc94a95540e17c879ce976caf6a2;hp=f3241ed30847af1886801ea728060a51ef2b2813;hpb=ab5be9fa2eb5ba9600a82cd18fd3cfcbac69169a;p=lttng-tools.git diff --git a/include/lttng/channel.h b/include/lttng/channel.h index f3241ed30..3d175b8a4 100644 --- a/include/lttng/channel.h +++ b/include/lttng/channel.h @@ -10,6 +10,8 @@ #include #include +#include + #include #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 }