diff options
| author | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2008-10-29 23:10:19 -0400 |
|---|---|---|
| committer | Bjoern B. Brandenburg <bbb@cs.unc.edu> | 2008-10-29 23:10:19 -0400 |
| commit | aa387e17f6d5dcd2847ba142c6d4a8d7e5b5054d (patch) | |
| tree | b41b3d5b44867c5f647be0c165517bdaa8b319fd /src | |
| parent | 61c4835ed40d6a168ada3f62c7cc11420b5e3f39 (diff) | |
add event_time(), remove cruft
Diffstat (limited to 'src')
| -rw-r--r-- | src/sched_trace.c | 63 |
1 files changed, 25 insertions, 38 deletions
diff --git a/src/sched_trace.c b/src/sched_trace.c index 330ed27..434b0d7 100644 --- a/src/sched_trace.c +++ b/src/sched_trace.c | |||
| @@ -1,6 +1,7 @@ | |||
| 1 | #include <stdio.h> | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> | 2 | #include <stdlib.h> |
| 3 | 3 | ||
| 4 | |||
| 4 | #include <sys/types.h> | 5 | #include <sys/types.h> |
| 5 | #include <sys/stat.h> | 6 | #include <sys/stat.h> |
| 6 | #include <sys/mman.h> | 7 | #include <sys/mman.h> |
| @@ -10,42 +11,6 @@ | |||
| 10 | #include "litmus.h" | 11 | #include "litmus.h" |
| 11 | #include "sched_trace.h" | 12 | #include "sched_trace.h" |
| 12 | 13 | ||
| 13 | static int map_file(const char* filename, void **addr, size_t *size) | ||
| 14 | { | ||
| 15 | struct stat info; | ||
| 16 | int error = 0; | ||
| 17 | int fd; | ||
| 18 | |||
| 19 | error = stat(filename, &info); | ||
| 20 | if (!error) { | ||
| 21 | *size = info.st_size; | ||
| 22 | if (info.st_size > 0) { | ||
| 23 | fd = open(filename, O_RDONLY); | ||
| 24 | if (fd >= 0) { | ||
| 25 | *addr = mmap(NULL, *size, | ||
| 26 | PROT_READ | PROT_WRITE, | ||
| 27 | MAP_PRIVATE, fd, 0); | ||
| 28 | if (*addr == MAP_FAILED) | ||
| 29 | error = -1; | ||
| 30 | close(fd); | ||
| 31 | } else | ||
| 32 | error = fd; | ||
| 33 | } else | ||
| 34 | *addr = NULL; | ||
| 35 | } | ||
| 36 | return error; | ||
| 37 | } | ||
| 38 | |||
| 39 | static int map_trace(const char *name, void **start, void **end, size_t *size) | ||
| 40 | { | ||
| 41 | int ret; | ||
| 42 | |||
| 43 | ret = map_file(name, start, size); | ||
| 44 | if (!ret) | ||
| 45 | *end = *start + *size; | ||
| 46 | return ret; | ||
| 47 | } | ||
| 48 | |||
| 49 | static const char* event_names[] = { | 14 | static const char* event_names[] = { |
| 50 | "INVALID", | 15 | "INVALID", |
| 51 | "NAME", | 16 | "NAME", |
| @@ -70,6 +35,30 @@ const char* event2name(unsigned int id) | |||
| 70 | return event_names[id]; | 35 | return event_names[id]; |
| 71 | } | 36 | } |
| 72 | 37 | ||
| 38 | |||
| 39 | u64 event_time(struct st_event_record* rec) | ||
| 40 | { | ||
| 41 | u64 when; | ||
| 42 | switch (rec->hdr.type) { | ||
| 43 | /* the time stamp is encoded in the first payload u64 */ | ||
| 44 | case ST_RELEASE: | ||
| 45 | case ST_ASSIGNED: | ||
| 46 | case ST_SWITCH_TO: | ||
| 47 | case ST_SWITCH_AWAY: | ||
| 48 | case ST_COMPLETION: | ||
| 49 | case ST_BLOCK: | ||
| 50 | case ST_RESUME: | ||
| 51 | when = rec->data.raw[0]; | ||
| 52 | break; | ||
| 53 | default: | ||
| 54 | /* stuff that doesn't have a time stamp should occur "early" */ | ||
| 55 | when = 0; | ||
| 56 | break; | ||
| 57 | }; | ||
| 58 | return when; | ||
| 59 | } | ||
| 60 | |||
| 61 | |||
| 73 | void print_header(struct st_trace_header* hdr) | 62 | void print_header(struct st_trace_header* hdr) |
| 74 | { | 63 | { |
| 75 | printf("%-14s %5u/%-5u on CPU%3u ", | 64 | printf("%-14s %5u/%-5u on CPU%3u ", |
| @@ -123,10 +112,8 @@ void print_event(struct st_event_record *rec) | |||
| 123 | print_header(&rec->hdr); | 112 | print_header(&rec->hdr); |
| 124 | print_detail[id](rec); | 113 | print_detail[id](rec); |
| 125 | printf("\n"); | 114 | printf("\n"); |
| 126 | return event_names[id]; | ||
| 127 | } | 115 | } |
| 128 | 116 | ||
| 129 | |||
| 130 | void print_all(struct st_event_record *rec, unsigned int count) | 117 | void print_all(struct st_event_record *rec, unsigned int count) |
| 131 | { | 118 | { |
| 132 | unsigned int i; | 119 | unsigned int i; |