X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fevent-rule%2Fkernel-probe.h;fp=include%2Flttng%2Fevent-rule%2Fkernel-probe.h;h=2ac173d273e1e8c1e2a325e310abbbe3b9b1e2e3;hb=a3c516531ffff69b8d5f6564c8e4d00b4f18e7da;hp=0000000000000000000000000000000000000000;hpb=f27911615bc5907d61d8ea236da974090bd85d24;p=lttng-tools.git diff --git a/include/lttng/event-rule/kernel-probe.h b/include/lttng/event-rule/kernel-probe.h new file mode 100644 index 000000000..2ac173d27 --- /dev/null +++ b/include/lttng/event-rule/kernel-probe.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2019 Jonathan Rajotte + * + * SPDX-License-Identifier: LGPL-2.1-only + * + */ + +#ifndef LTTNG_EVENT_RULE_KERNEL_PROBE_H +#define LTTNG_EVENT_RULE_KERNEL_PROBE_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +struct lttng_kernel_probe_location; + +/* + * Create a newly allocated kernel probe event rule. + * + * Returns a new event rule on success, NULL on failure. The returned event rule + * must be destroyed using lttng_event_rule_destroy(). + */ +extern struct lttng_event_rule *lttng_event_rule_kernel_probe_create(void); + +/* + * Set the kernel probe location of a kernel probe event rule. + * + * The location is copied internally. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID + * if invalid parameters are passed. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_probe_set_location( + struct lttng_event_rule *rule, + const struct lttng_kernel_probe_location *location); + +/* + * Get the kernel probe location of a kernel probe event rule. + * + * The caller does not assume the ownership of the returned location. + * The location shall only be used for the duration of the event + * rule's lifetime, or before a different location is set. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK and a pointer to the event rule's location + * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is + * passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a location was not set prior to + * this call. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_probe_get_location( + const struct lttng_event_rule *rule, + const struct lttng_kernel_probe_location **location); + +/* + * Set the name of a kernel probe event rule. + * + * The name is copied internally. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID + * if invalid parameters are passed. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_probe_set_name( + struct lttng_event_rule *rule, const char *name); + +/* + * Get the name of a kernel probe event rule. + * + * The caller does not assume the ownership of the returned name. + * The name shall only only be used for the duration of the event + * rule's lifetime, or before a different name is set. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK and a pointer to the event rule's name on + * success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is passed, + * or LTTNG_EVENT_RULE_STATUS_UNSET if a name was not set prior to this call. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_probe_get_name( + const struct lttng_event_rule *rule, const char **name); + +#ifdef __cplusplus +} +#endif + +#endif /* LTTNG_EVENT_RULE_KERNEL_PROBE_H */