*/
#ifndef LWT_H
#define LWT_H
-#include "tls.h"
#ifndef ENABLE_TRACE
#define TRACE(...) do { } while (0)
#define TRACE(flag, format, v1, v2) lwt_trace(flag, format, (size_t)(v1), (size_t)(v2))
#endif
-#define LWT_BUFFER_SCALE 16
-#define LWT_BUFFER_SIZE (1 << LWT_BUFFER_SCALE)
-#define LWT_BUFFER_MASK (LWT_BUFFER_SIZE - 1)
-
-typedef struct lwt_record {
- uint64_t timestamp;
- const char *format;
- size_t value1;
- size_t value2;
-} lwt_record_t;
-
-typedef struct lwt_buffer {
- uint32_t head;
- lwt_record_t x[0];
-} lwt_buffer_t;
-
-void lwt_init (void);
-void lwt_thread_init (int thread_id);
-
+// Dump trace records to <file_name>. The file should be post-processed with "sort" before viewing.
void lwt_dump (const char *file_name) __attribute__ ((externally_visible));
// <flags> indicates what kind of trace messages should be included in the dump. <flags> is a sequence of letters
// the dump. It is only included when its specified category is enabled at a trace level greater than or equal to
// the one in <flag>. Categories are case sensitive.
static inline void lwt_trace (const char *flag, const char *format, size_t value1, size_t value2) {
- extern uint64_t flag_mask_;
- if (EXPECT_FALSE(flag_mask_ & (1 << (flag[0] - 'A')))) {
- LOCALIZE_THREAD_LOCAL(tb_, lwt_buffer_t *);
- unsigned int u, l;
- __asm__ __volatile__("rdtsc" : "=a" (l), "=d" (u));
- uint64_t timestamp = ((uint64_t)u << 32) | l;
+ extern char flag_state_[256];
+ if (EXPECT_FALSE(flag_state_[(unsigned)flag[0]] >= flag[1])) {
// embed <flags> in <format> so we don't have to make the lwt_record_t any bigger than it already is
format = (const char *)((size_t)format | ((uint64_t)flag[0] << 56) | ((uint64_t)flag[1] << 48));
- lwt_record_t temp = { timestamp, format, value1, value2 };
- if (tb_) {
- tb_->x[tb_->head++ & LWT_BUFFER_MASK] = temp;
- }
+ extern void lwt_trace_i (const char *format, size_t value1, size_t value2);
+ lwt_trace_i(format, value1, value2);
}
}
+
+void lwt_halt (void);
+
#endif//LWT_H