X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=libust%2Frelay.h;h=0e1827912b4870472088ed51f07d32d4e9fe42e6;hb=a2dc02e0e0a685b8814b68a2f07ce73c08e0ef50;hp=6b3a8b79692affb40781a66990b7279c18a49e09;hpb=64d9b80b1e4dfbb0c8329ed950d1c0d4de3e4c7a;p=ust.git diff --git a/libust/relay.h b/libust/relay.h index 6b3a8b7..0e18279 100644 --- a/libust/relay.h +++ b/libust/relay.h @@ -22,10 +22,10 @@ //ust// #include //ust// #include #include -#include "tracer.h" -#include "kref.h" +#include //#include "list.h" #include "channels.h" +#include "buffer.h" /* Needs a _much_ better name... */ #define FIX_SIZE(x) ((((x) - 1) & PAGE_MASK) + PAGE_SIZE) @@ -213,18 +213,26 @@ static inline struct buf_page *ltt_relay_cache_page(struct rchan_buf *buf, } //ust// #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS - static inline void ltt_relay_do_copy(void *dest, const void *src, size_t len) +static inline void ltt_relay_do_copy(void *dest, const void *src, size_t len) { + union { + const void *src; + const u8 *src8; + const u16 *src16; + const u32 *src32; + const u64 *src64; + } u = { .src = src }; + switch (len) { case 0: break; - case 1: *(u8 *)dest = *(const u8 *)src; + case 1: *(u8 *)dest = *u.src8; break; - case 2: *(u16 *)dest = *(const u16 *)src; + case 2: *(u16 *)dest = *u.src16; break; - case 4: *(u32 *)dest = *(const u32 *)src; + case 4: *(u32 *)dest = *u.src32; break; //ust// #if (BITS_PER_LONG == 64) - case 8: *(u64 *)dest = *(const u64 *)src; + case 8: *(u64 *)dest = *u.src64; break; //ust// #endif default: @@ -309,7 +317,7 @@ static inline int ltt_relay_write(struct rchan_buf *buf, size_t offset, * CONFIG_LTT_RELAY kernel API, ltt/ltt-relay-alloc.c */ -struct rchan *ltt_relay_open(const char *base_filename, +extern struct rchan *ltt_relay_open(const char *base_filename, struct dentry *parent, size_t subbuf_size, size_t n_subbufs, @@ -367,8 +375,15 @@ struct ltt_channel_buf_struct { local_t commit_seq[0] ____cacheline_aligned; } ____cacheline_aligned; -int ltt_do_get_subbuf(struct rchan_buf *buf, struct ltt_channel_buf_struct *ltt_buf, long *pconsumed_old); +extern int ltt_do_get_subbuf(struct rchan_buf *buf, struct ltt_channel_buf_struct *ltt_buf, long *pconsumed_old); + +extern int ltt_do_put_subbuf(struct rchan_buf *buf, struct ltt_channel_buf_struct *ltt_buf, u32 uconsumed_old); + +extern void init_ustrelay_transport(void); -int ltt_do_put_subbuf(struct rchan_buf *buf, struct ltt_channel_buf_struct *ltt_buf, u32 uconsumed_old); +/*static*/ /* inline */ notrace void ltt_commit_slot( + struct ltt_channel_struct *ltt_channel, + void **transport_data, long buf_offset, + size_t data_size, size_t slot_size); #endif /* _LINUX_LTT_RELAY_H */