rename util/ to runtime/

[nbds] / util / lwt.c

diff --git a/util/lwt.c b/util/lwt.c
deleted file mode 100644 (file)
index d7b9862..0000000
--- a/util/lwt.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/* 
- * Written by Josh Dybnis and released to the public domain, as explained at
- * http://creativecommons.org/licenses/publicdomain
- *
- * lightweight tracing 
- */
-#include <stdio.h>
-
-#include "common.h"
-#include "tls.h"
-#include "lwt.h"
-#include "mem.h"
-
-DECLARE_THREAD_LOCAL(tb_, int);
-
-lwt_buffer_t *lwt_buf_[MAX_NUM_THREADS] = {};
-uint64_t flag_mask_ = 0;
-static int buf_count_ = 0;
-static const char *flags_ = "";
-
-void lwt_init (void)
-{
-    INIT_THREAD_LOCAL(tb_, NULL);
-}
-
-void lwt_thread_init (int thread_id)
-{
-    assert(thread_id < MAX_NUM_THREADS);
-    if (lwt_buf_[thread_id] == NULL) {
-        lwt_buf_[thread_id] = (lwt_buffer_t *)nbd_malloc(sizeof(lwt_buffer_t) + sizeof(lwt_record_t) * LWT_BUFFER_SIZE);
-        SYNC_ADD(&buf_count_, 1);
-        memset(lwt_buf_[thread_id], 0, sizeof(lwt_buffer_t));
-        SET_THREAD_LOCAL(tb_, lwt_buf_[thread_id]);
-    }
-}
-
-void lwt_set_trace_level (const char *flags)
-{
-    assert(strlen(flags) % 2 == 0); // a well formed <flags> should be an even number of characters long
-    flags_ = flags;
-    int i;
-    for (i = 0; flags[i]; i+=2) {
-        flag_mask_ |= 1 << (flags[i] - 'A');
-    }
-}
-
-static inline void dump_record (FILE *file, int thread_id, lwt_record_t *r, uint64_t offset)
-{
-    // print the record if its trace category is enabled at a high enough level
-    int flag  =  (size_t)r->format >> 56;
-    int level = ((size_t)r->format >> 48) & 0xFF;
-    const char *f = strchr(flags_, flag);
-    if (f != NULL && level <= f[1]) {
-        char s[3] = {flag, level, '\0'};
-        fprintf(file, "%09llu %d %s ", ((uint64_t)r->timestamp - offset) >> 6, thread_id, s);
-        const char *format = (const char *)(((uint64_t)r->format << 16) >> 16); // strip out the embedded flags
-        fprintf(file, format, r->value1, r->value2);
-        fprintf(file, "\n");
-    }
-}
-
-static void dump_buffer (FILE *file, int thread_id, uint64_t offset)
-{
-    assert(thread_id < buf_count_);
-
-    lwt_buffer_t *tb = lwt_buf_[thread_id]; 
-    int i;
-    if (tb->head > LWT_BUFFER_SIZE) {
-        for (i = tb->head & LWT_BUFFER_MASK; i < LWT_BUFFER_SIZE; ++i) {
-            dump_record(file, thread_id, tb->x + i, offset);
-        }
-    }
-
-    for (i = 0; i < (tb->head & LWT_BUFFER_MASK); ++i) {
-        dump_record(file, thread_id, tb->x + i, offset);
-    }
-}
-
-void lwt_dump (const char *file_name)
-{
-    uint64_t offset = (uint64_t)-1;
-    int i;
-
-    for (i = 0; i < buf_count_; ++i) {
-        if (lwt_buf_[i] != NULL && lwt_buf_[i]->head != 0) {
-            uint64_t x = lwt_buf_[i]->x[0].timestamp;
-            if (x < offset) {
-                offset = x;
-            }
-            if (lwt_buf_[i]->head > LWT_BUFFER_SIZE)
-            {
-                x = lwt_buf_[i]->x[lwt_buf_[i]->head & LWT_BUFFER_MASK].timestamp;
-                if (x < offset) {
-                    offset = x;
-                }
-            }
-        }
-    }
-
-    if (offset != (uint64_t)-1) {
-        FILE *file = fopen(file_name, "w");
-        assert(file);
-        for (i = 0; i < buf_count_; ++i) {
-            if (lwt_buf_[i] != NULL) {
-                dump_buffer(file, i, offset);
-            }
-        }
-        fflush(file);
-        fclose(file);
-    }
-}