X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=liblttng-ust%2Flttng-ring-buffer-client.h;h=8e14acf5fc3caebad3ad2ad54c0ed52001a979c2;hb=879f9b0aa0c9a8ee31ba47bfaaf6539ef2e349b2;hp=4fbfc709a19d9e8f834384aef54c0cbe3bbad2bb;hpb=e7bc0ef6c86ae97886cf5f8b28854cf281d4962b;p=lttng-ust.git diff --git a/liblttng-ust/lttng-ring-buffer-client.h b/liblttng-ust/lttng-ring-buffer-client.h index 4fbfc709..8e14acf5 100644 --- a/liblttng-ust/lttng-ring-buffer-client.h +++ b/liblttng-ust/lttng-ring-buffer-client.h @@ -10,6 +10,7 @@ #include #include +#include #include "ust-bitfield.h" #include "ust-compat.h" #include "clock.h" @@ -62,6 +63,8 @@ struct packet_header { struct lttng_client_ctx { size_t packet_context_len; size_t event_context_len; + struct lttng_ust_ctx *chan_ctx; + struct lttng_ust_ctx *event_ctx; }; static inline uint64_t lib_ring_buffer_clock_read(struct lttng_ust_lib_ring_buffer_channel *chan) @@ -173,7 +176,6 @@ size_t record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_client_ctx *client_ctx) { struct lttng_ust_channel_buffer *lttng_chan = channel_get_private(chan); - struct lttng_ust_stack_ctx *lttng_ctx = ctx->priv; size_t orig_offset = offset; size_t padding; @@ -212,9 +214,9 @@ size_t record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, padding = 0; WARN_ON_ONCE(1); } - offset += ctx_get_aligned_size(offset, lttng_ctx->chan_ctx, + offset += ctx_get_aligned_size(offset, client_ctx->chan_ctx, client_ctx->packet_context_len); - offset += ctx_get_aligned_size(offset, lttng_ctx->event_ctx, + offset += ctx_get_aligned_size(offset, client_ctx->event_ctx, client_ctx->event_context_len); *pre_header_padding = padding; return offset - orig_offset; @@ -226,6 +228,7 @@ size_t record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, static void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_client_ctx *client_ctx, uint32_t event_id); /* @@ -240,10 +243,10 @@ void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config static __inline__ void lttng_write_event_header(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_client_ctx *client_ctx, uint32_t event_id) { struct lttng_ust_channel_buffer *lttng_chan = channel_get_private(ctx->chan); - struct lttng_ust_stack_ctx *lttng_ctx = ctx->priv; if (caa_unlikely(ctx->rflags)) goto slow_path; @@ -278,23 +281,23 @@ void lttng_write_event_header(const struct lttng_ust_lib_ring_buffer_config *con WARN_ON_ONCE(1); } - ctx_record(ctx, lttng_chan, lttng_ctx->chan_ctx, APP_CTX_ENABLED); - ctx_record(ctx, lttng_chan, lttng_ctx->event_ctx, APP_CTX_ENABLED); + ctx_record(ctx, lttng_chan, client_ctx->chan_ctx, APP_CTX_ENABLED); + ctx_record(ctx, lttng_chan, client_ctx->event_ctx, APP_CTX_ENABLED); lib_ring_buffer_align_ctx(ctx, ctx->largest_align); return; slow_path: - lttng_write_event_header_slow(config, ctx, event_id); + lttng_write_event_header_slow(config, ctx, client_ctx, event_id); } static void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_client_ctx *client_ctx, uint32_t event_id) { struct lttng_ust_channel_buffer *lttng_chan = channel_get_private(ctx->chan); - struct lttng_ust_stack_ctx *lttng_ctx = ctx->priv; switch (lttng_chan->priv->header_type) { case 1: /* compact */ @@ -351,8 +354,8 @@ void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config default: WARN_ON_ONCE(1); } - ctx_record(ctx, lttng_chan, lttng_ctx->chan_ctx, APP_CTX_ENABLED); - ctx_record(ctx, lttng_chan, lttng_ctx->event_ctx, APP_CTX_ENABLED); + ctx_record(ctx, lttng_chan, client_ctx->chan_ctx, APP_CTX_ENABLED); + ctx_record(ctx, lttng_chan, client_ctx->event_ctx, APP_CTX_ENABLED); lib_ring_buffer_align_ctx(ctx, ctx->largest_align); } @@ -694,13 +697,16 @@ int lttng_event_reserve(struct lttng_ust_lib_ring_buffer_ctx *ctx, { struct lttng_ust_channel_buffer *lttng_chan = channel_get_private(ctx->chan); struct lttng_ust_stack_ctx *lttng_ctx = ctx->priv; + struct lttng_ust_event_recorder *event_recorder = lttng_ctx->event_recorder; struct lttng_client_ctx client_ctx; int ret, cpu; + client_ctx.chan_ctx = lttng_ust_rcu_dereference(lttng_chan->priv->ctx); + client_ctx.event_ctx = lttng_ust_rcu_dereference(event_recorder->priv->ctx); /* Compute internal size of context structures. */ - ctx_get_struct_size(lttng_ctx->chan_ctx, &client_ctx.packet_context_len, + ctx_get_struct_size(client_ctx.chan_ctx, &client_ctx.packet_context_len, APP_CTX_ENABLED); - ctx_get_struct_size(lttng_ctx->event_ctx, &client_ctx.event_context_len, + ctx_get_struct_size(client_ctx.event_ctx, &client_ctx.event_context_len, APP_CTX_ENABLED); cpu = lib_ring_buffer_get_cpu(&client_config); @@ -729,7 +735,7 @@ int lttng_event_reserve(struct lttng_ust_lib_ring_buffer_ctx *ctx, ret = -EPERM; goto put; } - lttng_write_event_header(&client_config, ctx, event_id); + lttng_write_event_header(&client_config, ctx, &client_ctx, event_id); return 0; put: lib_ring_buffer_put_cpu(&client_config); @@ -757,6 +763,13 @@ void lttng_event_strcpy(struct lttng_ust_lib_ring_buffer_ctx *ctx, const char *s lib_ring_buffer_strcpy(&client_config, ctx, src, len, '#'); } +static +void lttng_event_pstrcpy_pad(struct lttng_ust_lib_ring_buffer_ctx *ctx, + const char *src, size_t len) +{ + lib_ring_buffer_pstrcpy(&client_config, ctx, src, len, '\0'); +} + #if 0 static wait_queue_head_t *lttng_get_reader_wait_queue(struct lttng_ust_lib_ring_buffer_channel *chan) @@ -806,8 +819,8 @@ int lttng_flush_buffer(struct lttng_ust_lib_ring_buffer_channel *chan, static struct lttng_transport lttng_relay_transport = { .name = "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap", .ops = { - .struct_size = sizeof(struct lttng_ust_channel_ops), - .priv = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_channel_ops_private, { + .struct_size = sizeof(struct lttng_ust_channel_buffer_ops), + .priv = __LTTNG_COMPOUND_LITERAL(struct lttng_ust_channel_buffer_ops_private, { .pub = <tng_relay_transport.ops, .channel_create = _channel_create, .channel_destroy = lttng_channel_destroy, @@ -820,6 +833,7 @@ static struct lttng_transport lttng_relay_transport = { .event_commit = lttng_event_commit, .event_write = lttng_event_write, .event_strcpy = lttng_event_strcpy, + .event_pstrcpy_pad = lttng_event_pstrcpy_pad, }, .client_config = &client_config, };