Refactoring: combine event hash tables common code

[lttng-modules.git] / include / lttng / events-internal.h

diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h
index 8ac1b01b6f61ca9aed4dfb0878f81eef6424d703..873adc31201238d2506538ba5e26df15d5aafe0c 100644 (file)
--- a/include/lttng/events-internal.h
+++ b/include/lttng/events-internal.h
@@ -410,11 +410,11 @@ struct lttng_counter {
        struct lttng_counter_ops *ops;
 };
 
-#define LTTNG_EVENT_NOTIFIER_HT_BITS           12
-#define LTTNG_EVENT_NOTIFIER_HT_SIZE           (1U << LTTNG_EVENT_NOTIFIER_HT_BITS)
+#define LTTNG_EVENT_HT_BITS            12
+#define LTTNG_EVENT_HT_SIZE            (1U << LTTNG_EVENT_HT_BITS)
 
-struct lttng_event_notifier_ht {
-       struct hlist_head table[LTTNG_EVENT_NOTIFIER_HT_SIZE];
+struct lttng_event_ht {
+       struct hlist_head table[LTTNG_EVENT_HT_SIZE];
 };
 
 struct lttng_event_notifier_group {
@@ -423,7 +423,7 @@ struct lttng_event_notifier_group {
        struct list_head node;          /* event notifier group list */
        struct list_head enablers_head; /* List of enablers */
        struct list_head event_notifiers_head; /* List of event notifier */
-       struct lttng_event_notifier_ht event_notifiers_ht; /* Hash table of event notifiers */
+       struct lttng_event_ht events_ht; /* Hash table of event notifiers */
        struct lttng_kernel_channel_buffer_ops *ops;
        struct lttng_transport *transport;
        struct lttng_kernel_ring_buffer_channel *chan;          /* Ring buffer channel for event notifier group. */
@@ -451,13 +451,6 @@ struct lttng_counter_transport {
        struct lttng_counter_ops ops;
 };
 
-#define LTTNG_EVENT_HT_BITS            12
-#define LTTNG_EVENT_HT_SIZE            (1U << LTTNG_EVENT_HT_BITS)
-
-struct lttng_event_ht {
-       struct hlist_head table[LTTNG_EVENT_HT_SIZE];
-};
-
 struct lttng_kernel_session_private {
        struct lttng_kernel_session *pub;       /* Public session interface */
 
@@ -785,22 +778,21 @@ struct lttng_event_recorder_enabler *lttng_event_recorder_enabler_create(
                struct lttng_kernel_channel_buffer *chan);
 void lttng_event_enabler_session_add(struct lttng_kernel_session *session,
                struct lttng_event_recorder_enabler *event_enabler);
-void lttng_event_enabler_destroy(struct lttng_event_recorder_enabler *event_enabler);
-
-int lttng_event_enabler_enable(struct lttng_event_enabler_common *event_enabler);
-int lttng_event_enabler_disable(struct lttng_event_enabler_common *event_enabler);
 
 struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
                struct lttng_event_notifier_group *event_notifier_group,
                enum lttng_enabler_format_type format_type,
                struct lttng_kernel_abi_event_notifier *event_notifier_param);
-
-int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler_common *event_enabler,
-               struct lttng_kernel_abi_filter_bytecode __user *bytecode);
 int lttng_event_notifier_enabler_attach_capture_bytecode(
                struct lttng_event_notifier_enabler *event_notifier_enabler,
                struct lttng_kernel_abi_capture_bytecode __user *bytecode);
 
+int lttng_event_enabler_enable(struct lttng_event_enabler_common *event_enabler);
+int lttng_event_enabler_disable(struct lttng_event_enabler_common *event_enabler);
+int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler_common *event_enabler,
+               struct lttng_kernel_abi_filter_bytecode __user *bytecode);
+void lttng_event_enabler_destroy(struct lttng_event_enabler_common *event_enabler);
+
 int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc,
                struct lttng_event_enabler_common *enabler);
 
@@ -810,83 +802,48 @@ void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_des
                struct list_head *enabler_bytecode_runtime_head);
 
 #if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
-int lttng_syscalls_register_event(struct lttng_event_recorder_enabler *event_enabler);
-int lttng_syscalls_unregister_channel(struct lttng_kernel_channel_buffer *chan);
-int lttng_syscalls_destroy_event(struct lttng_kernel_channel_buffer *chan);
-int lttng_syscall_filter_enable_event(
-               struct lttng_kernel_channel_buffer *chan,
-               struct lttng_kernel_event_recorder *event);
-int lttng_syscall_filter_disable_event(
-               struct lttng_kernel_channel_buffer *chan,
-               struct lttng_kernel_event_recorder *event);
-
-long lttng_channel_syscall_mask(struct lttng_kernel_channel_buffer *channel,
-               struct lttng_kernel_abi_syscall_mask __user *usyscall_mask);
+int lttng_syscalls_register_event(struct lttng_event_enabler_common *event_enabler);
+int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event);
+int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event);
 
-int lttng_syscalls_register_event_notifier(
-               struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_syscalls_create_matching_event_notifiers(
-               struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_syscalls_unregister_event_notifier_group(struct lttng_event_notifier_group *group);
-int lttng_syscall_filter_enable_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-int lttng_syscall_filter_disable_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline int lttng_syscalls_register_event(
-               struct lttng_event_recorder_enabler *event_enabler)
-{
-       return -ENOSYS;
-}
-
-static inline int lttng_syscalls_unregister_channel(struct lttng_kernel_channel_buffer *chan)
-{
-       return 0;
-}
-
-static inline int lttng_syscalls_destroy(struct lttng_kernel_channel_buffer *chan)
-{
-       return 0;
-}
+int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table);
+int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table);
 
-static inline int lttng_syscall_filter_enable_event(struct lttng_kernel_channel_buffer *chan,
-               struct lttng_kernel_event_recorder *event);
+long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table,
+               struct lttng_kernel_abi_syscall_mask __user *usyscall_mask);
+#else
+static inline int lttng_syscalls_register_event(struct lttng_event_enabler_common *event_enabler)
 {
        return -ENOSYS;
 }
 
-static inline int lttng_syscall_filter_disable_event(struct lttng_kernel_channel_buffer *chan,
-               struct lttng_kernel_event_recorder *event);
+static inline int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event)
 {
        return -ENOSYS;
 }
 
-static inline long lttng_channel_syscall_mask(struct lttng_kernel_channel_buffer *channel,
-               struct lttng_kernel_syscall_mask __user *usyscall_mask)
+static inline int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event)
 {
        return -ENOSYS;
 }
 
-static inline int lttng_syscalls_register_event_notifier(
-               struct lttng_event_notifier_group *group)
+static inline int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table)
 {
-       return -ENOSYS;
+       return 0;
 }
 
-static inline int lttng_syscalls_unregister_event_notifier_group(
-               struct lttng_event_notifier_group *group)
+static inline int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table)
 {
        return 0;
 }
 
-static inline int lttng_syscall_filter_enable_event_notifier(
-               struct lttng_event_notifier_group *group,
-               const char *name)
+static inline long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table,
+               struct lttng_kernel_abi_syscall_mask __user *usyscall_mask)
 {
        return -ENOSYS;
 }
 
-static inline int lttng_syscall_filter_disable_event_notifier(
-               struct lttng_event_notifier_group *group,
-               const char *name)
+static inline int lttng_syscalls_create_matching_event_notifiers(struct lttng_event_notifier_enabler *event_notifier_enabler)
 {
        return -ENOSYS;
 }
@@ -898,52 +855,27 @@ int lttng_kprobes_register_event(const char *name,
                const char *symbol_name,
                uint64_t offset,
                uint64_t addr,
-               struct lttng_kernel_event_recorder *event);
-void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event);
-void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
-int lttng_kprobes_register_event_notifier(const char *symbol_name,
-               uint64_t offset,
-               uint64_t addr,
-               struct lttng_kernel_event_notifier *event_notifier);
-void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
+               struct lttng_kernel_event_common *event);
+void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event);
+void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event);
 #else
 static inline
 int lttng_kprobes_register_event(const char *name,
                const char *symbol_name,
                uint64_t offset,
                uint64_t addr,
-               struct lttng_kernel_event_recorder *event)
-{
-       return -ENOSYS;
-}
-
-static inline
-void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_kprobes_register_event_notifier(const char *symbol_name,
-               uint64_t offset,
-               uint64_t addr,
-               struct lttng_kernel_event_notifier *event_notifier)
+               struct lttng_kernel_event_common *event)
 {
        return -ENOSYS;
 }
 
 static inline
-void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
+void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event)
 {
 }
 
 static inline
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
+void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event)
 {
 }
 #endif
@@ -953,19 +885,15 @@ int lttng_event_add_callsite(struct lttng_kernel_event_common *event,
 
 #ifdef CONFIG_UPROBES
 int lttng_uprobes_register_event(const char *name,
-       int fd, struct lttng_kernel_event_recorder *event);
+       int fd, struct lttng_kernel_event_common *event);
 int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
        struct lttng_kernel_abi_event_callsite __user *callsite);
-void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event);
-void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
-int lttng_uprobes_register_event_notifier(const char *name,
-       int fd, struct lttng_kernel_event_notifier *event_notifier);
-void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
+void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event);
+void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event);
 #else
 static inline
 int lttng_uprobes_register_event(const char *name,
-       int fd, struct lttng_kernel_event_recorder *event)
+       int fd, struct lttng_kernel_event_common *event)
 {
        return -ENOSYS;
 }
@@ -978,29 +906,12 @@ int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
 }
 
 static inline
-void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_uprobes_register_event_notifier(const char *name,
-       int fd, struct lttng_kernel_event_notifier *event_notifier)
-{
-       return -ENOSYS;
-}
-
-static inline
-void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
+void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event)
 {
 }
 
 static inline
-void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
+void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event)
 {
 }
 #endif
@@ -1010,10 +921,10 @@ int lttng_kretprobes_register(const char *name,
                const char *symbol_name,
                uint64_t offset,
                uint64_t addr,
-               struct lttng_kernel_event_recorder *event_entry,
-               struct lttng_kernel_event_recorder *event_exit);
-void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event);
-void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event);
+               struct lttng_kernel_event_common *event_entry,
+               struct lttng_kernel_event_common *event_exit);
+void lttng_kretprobes_unregister(struct lttng_kernel_event_common *event);
+void lttng_kretprobes_destroy_private(struct lttng_kernel_event_common *event);
 int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
        int enable);
 #else
@@ -1022,19 +933,19 @@ int lttng_kretprobes_register(const char *name,
                const char *symbol_name,
                uint64_t offset,
                uint64_t addr,
-               struct lttng_kernel_event_recorder *event_entry,
-               struct lttng_kernel_event_recorder *event_exit)
+               struct lttng_kernel_event_common *event_entry,
+               struct lttng_kernel_event_common *event_exit)
 {
        return -ENOSYS;
 }
 
 static inline
-void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event)
+void lttng_kretprobes_unregister(struct lttng_kernel_event_common *event)
 {
 }
 
 static inline
-void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event)
+void lttng_kretprobes_destroy_private(struct lttng_kernel_event_common *event)
 {
 }
 
@@ -1082,7 +993,7 @@ int lttng_event_notifier_group_create_error_counter(
 void lttng_event_notifier_group_destroy(
                struct lttng_event_notifier_group *event_notifier_group);
 
-struct lttng_kernel_channel_buffer *lttng_channel_create(struct lttng_kernel_session *session,
+struct lttng_kernel_channel_buffer *lttng_channel_buffer_create(struct lttng_kernel_session *session,
                                       const char *transport_name,
                                       void *buf_addr,
                                       size_t subbuf_size, size_t num_subbuf,
@@ -1119,8 +1030,8 @@ struct lttng_kernel_event_notifier *_lttng_event_notifier_create(
                                struct lttng_kernel_abi_event_notifier *event_notifier_param,
                                enum lttng_kernel_abi_instrumentation itype);
 
-int lttng_channel_enable(struct lttng_kernel_channel_buffer *channel);
-int lttng_channel_disable(struct lttng_kernel_channel_buffer *channel);
+int lttng_channel_enable(struct lttng_kernel_channel_common *channel);
+int lttng_channel_disable(struct lttng_kernel_channel_common *channel);
 int lttng_event_enable(struct lttng_kernel_event_common *event);
 int lttng_event_disable(struct lttng_kernel_event_common *event);