blkparse: Initialize and test for undefined request tracking timestamps

[blktrace.git] / blktrace.h

diff --git a/blktrace.h b/blktrace.h
index 9855101b5f784d8f017af08b3c4670632dc0498d..944fc084cc090d5736911a8ca304bc8a2e9eacf6 100644 (file)
--- a/blktrace.h
+++ b/blktrace.h
@@ -1,22 +1,83 @@
 #ifndef BLKTRACE_H
 #define BLKTRACE_H
 
+#include <stdio.h>
+#include <limits.h>
 #include <byteswap.h>
-#include <asm/types.h>
-#include <asm/byteorder.h>
+#include <endian.h>
+#include <sys/types.h>
+
 #include "blktrace_api.h"
+#include "rbtree.h"
+
+#define MINORBITS      20
+#define MINORMASK      ((1U << MINORBITS) - 1)
+#define MAJOR(dev)     ((unsigned int) ((dev) >> MINORBITS))
+#define MINOR(dev)     ((unsigned int) ((dev) & MINORMASK))
+
+#define SECONDS(x)             ((unsigned long long)(x) / 1000000000)
+#define NANO_SECONDS(x)                ((unsigned long long)(x) % 1000000000)
+#define DOUBLE_TO_NANO_ULL(d)  ((unsigned long long)((d) * 1000000000))
+
+#define min(a, b)      ((a) < (b) ? (a) : (b))
+#define max(a, b)      ((a) > (b) ? (a) : (b))
+
+#define t_sec(t)       ((t)->bytes >> 9)
+#define t_kb(t)                ((t)->bytes >> 10)
+#define t_b(t)         ((t)->bytes & 1023)
+
+typedef __u32 u32;
+typedef __u8 u8;
+
+struct io_stats {
+       unsigned long qreads, qwrites, creads, cwrites, mreads, mwrites;
+       unsigned long ireads, iwrites, rrqueue, wrqueue;
+       unsigned long long qread_kb, qwrite_kb, cread_kb, cwrite_kb;
+       unsigned long long qread_b, qwrite_b, cread_b, cwrite_b;
+       unsigned long long iread_kb, iwrite_kb;
+       unsigned long long mread_kb, mwrite_kb;
+       unsigned long long mread_b, mwrite_b, iread_b, iwrite_b;
+       unsigned long qreads_pc, qwrites_pc, ireads_pc, iwrites_pc;
+       unsigned long rrqueue_pc, wrqueue_pc, creads_pc, cwrites_pc;
+       unsigned long long qread_kb_pc, qwrite_kb_pc, iread_kb_pc, iwrite_kb_pc;
+       unsigned long long qread_b_pc, qwrite_b_pc, iread_b_pc, iwrite_b_pc;
+       unsigned long io_unplugs, timer_unplugs;
+};
+
+struct per_cpu_info {
+       unsigned int cpu;
+       unsigned int nelems;
+
+       int fd;
+       int fdblock;
+       char fname[PATH_MAX];
+
+       struct io_stats io_stats;
+
+       struct rb_root rb_last;
+       unsigned long rb_last_entries;
+       unsigned long last_sequence;
+       unsigned long smallest_seq_read;
+
+       struct skip_info *skips_head;
+       struct skip_info *skips_tail;
+};
+
+extern FILE *ofp;
+extern int data_is_native;
+extern struct timespec abs_start_time;
 
 #define CHECK_MAGIC(t)         (((t)->magic & 0xffffff00) == BLK_IO_TRACE_MAGIC)
-#define SUPPORTED_VERSION      (0x05)
+#define SUPPORTED_VERSION      (0x07)
 
-#if defined(__LITTLE_ENDIAN_BITFIELD)
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 #define be16_to_cpu(x)         __bswap_16(x)
 #define be32_to_cpu(x)         __bswap_32(x)
 #define be64_to_cpu(x)         __bswap_64(x)
 #define cpu_to_be16(x)         __bswap_16(x)
 #define cpu_to_be32(x)         __bswap_32(x)
 #define cpu_to_be64(x)         __bswap_64(x)
-#elif defined(__BIG_ENDIAN_BITFIELD)
+#elif __BYTE_ORDER == __BIG_ENDIAN
 #define be16_to_cpu(x)         (x)
 #define be32_to_cpu(x)         (x)
 #define be64_to_cpu(x)         (x)
@@ -42,24 +103,11 @@ static inline int verify_trace(struct blk_io_trace *t)
        return 0;
 }
 
-static inline void trace_to_be(struct blk_io_trace *t)
-{
-       t->magic        = cpu_to_be32(t->magic);
-       t->sequence     = cpu_to_be32(t->sequence);
-       t->time         = cpu_to_be64(t->time);
-       t->sector       = cpu_to_be64(t->sector);
-       t->bytes        = cpu_to_be32(t->bytes);
-       t->action       = cpu_to_be32(t->action);
-       t->pid          = cpu_to_be32(t->pid);
-       t->cpu          = cpu_to_be32(t->cpu);
-       t->error        = cpu_to_be16(t->error);
-       t->pdu_len      = cpu_to_be16(t->pdu_len);
-       t->device       = cpu_to_be32(t->device);
-       /* t->comm is a string (endian neutral) */
-}
-
 static inline void trace_to_cpu(struct blk_io_trace *t)
 {
+       if (data_is_native)
+               return;
+
        t->magic        = be32_to_cpu(t->magic);
        t->sequence     = be32_to_cpu(t->sequence);
        t->time         = be64_to_cpu(t->time);
@@ -67,11 +115,37 @@ static inline void trace_to_cpu(struct blk_io_trace *t)
        t->bytes        = be32_to_cpu(t->bytes);
        t->action       = be32_to_cpu(t->action);
        t->pid          = be32_to_cpu(t->pid);
+       t->device       = be32_to_cpu(t->device);
        t->cpu          = be32_to_cpu(t->cpu);
        t->error        = be16_to_cpu(t->error);
        t->pdu_len      = be16_to_cpu(t->pdu_len);
-       t->device       = be32_to_cpu(t->device);
-       /* t->comm is a string (endian neutral) */
 }
 
+/*
+ * check whether data is native or not
+ */
+static inline int check_data_endianness(u32 magic)
+{
+       if ((magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) {
+               data_is_native = 1;
+               return 0;
+       }
+
+       magic = __bswap_32(magic);
+       if ((magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) {
+               data_is_native = 0;
+               return 0;
+       }
+
+       return 1;
+}
+
+extern void set_all_format_specs(char *);
+extern int add_format_spec(char *);
+extern void process_fmt(char *, struct per_cpu_info *, struct blk_io_trace *,
+                       unsigned long long, int, unsigned char *);
+extern int valid_act_opt(int);
+extern int find_mask_map(char *);
+extern char *find_process_name(pid_t);
+
 #endif