| 1b82f325 |
1 | #ifndef TRACEFILE_H |
| 2 | #define TRACEFILE_H |
| 3 | |
| 4 | #include <ltt/ltt.h> |
| 5 | |
| 6 | /* A trace is specified as a pathname to the directory containing all the |
| 7 | associated data (control tracefile, per cpu tracefiles, event |
| 8 | descriptions...). |
| 9 | |
| 10 | When a trace is closed, all the associated facilities, types and fields |
| 11 | are released as well. */ |
| 12 | |
| 13 | ltt_trace *ltt_trace_open(char *pathname); |
| 14 | |
| 15 | void ltt_trace_close(ltt_trace *t); |
| 16 | |
| 17 | |
| 18 | /* A trace may be queried for its architecture type (e.g., "i386", |
| 19 | "powerpc", "powerpcle", "s390", "s390x"), its architecture variant |
| 20 | (e.g., "att" versus "sun" for m68k), its operating system (e.g., "linux", |
| 21 | "bsd"), its generic architecture, and the machine identity (e.g., system |
| 22 | host name). All character strings belong to the associated tracefile |
| 23 | and are freed when it is closed. */ |
| 24 | |
| 25 | |
| 26 | char *ltt_tracefile_arch_type(ltt_trace *t); |
| 27 | |
| 28 | char *ltt_tracefile_arch_variant(ltt_trace *t); |
| 29 | |
| 30 | char *ltt_tracefile_system_type(ltt_trace *t); |
| 31 | |
| 32 | ltt_arch_size ltt_tracefile_arch_size(ltt_trace *t); |
| 33 | |
| 34 | ltt_arch_endian ltt_tracefile_arch_endian(ltt_trace *t); |
| 35 | |
| 36 | |
| 37 | /* Hostname of the system where the trace was recorded */ |
| 38 | |
| 39 | char *ltt_trace_system_name(ltt_tracefile *t); |
| 40 | |
| 41 | |
| 42 | /* SMP multi-processors have 2 or more CPUs */ |
| 43 | |
| 44 | unsigned ltt_trace_cpu_number(ltt_trace *t); |
| 45 | |
| 46 | |
| 47 | /* Start and end time of the trace and its duration */ |
| 48 | |
| 49 | ltt_time ltt_tracefile_time_start(ltt_trace *t); |
| 50 | |
| 51 | ltt_time ltt_tracefile_time_end(ltt_trace *t); |
| 52 | |
| 53 | ltt_time ltt_tracefile_duration(ltt_tracefile *t); |
| 54 | |
| 55 | |
| 56 | /* Functions to discover the facilities in the trace */ |
| 57 | |
| 58 | unsigned ltt_trace_facility_number(ltt_trace *t); |
| 59 | |
| 60 | ltt_facility *ltt_trace_facility_get(ltt_trace *t, unsigned i); |
| 61 | |
| 62 | ltt_facility *ltt_trace_facility_get_by_name(ltt_trace *t, char *name); |
| 63 | |
| 64 | |
| 65 | /* Functions to discover all the event types in the trace */ |
| 66 | |
| 67 | unsigned ltt_trace_eventtype_number(ltt_tracefile *t); |
| 68 | |
| 69 | ltt_eventtype *ltt_trace_eventtype_get(ltt_tracefile *t, unsigned i); |
| 70 | |
| 71 | |
| 72 | /* A trace typically contains one "control" tracefile with important events |
| 73 | (for all CPUs), and one tracefile with ordinary events per cpu. |
| 74 | The tracefiles in a trace may be enumerated for each category |
| 75 | (all cpu and per cpu). The total number of tracefiles and of CPUs |
| 76 | may also be obtained. */ |
| 77 | |
| 78 | unsigned int ltt_trace_tracefile_number(ltt_trace *t); |
| 79 | |
| 80 | unsigned int ltt_trace_tracefile_number_per_cpu(ltt_trace *t); |
| 81 | |
| 82 | unsigned int ltt_trace_tracefile_number_all_cpu(ltt_trace *t); |
| 83 | |
| 84 | ltt_tracefile *ltt_trace_tracefile_get_per_cpu(ltt_trace *t, unsigned i); |
| 85 | |
| 86 | ltt_tracefile *ltt_trace_tracefile_get_all_cpu(ltt_trace *t, unsigned i); |
| 87 | |
| 88 | char *ltt_tracefile_name(ltt_tracefile *tf); |
| 89 | |
| 90 | |
| 91 | /* Seek to the first event of the trace with time larger or equal to time */ |
| 92 | |
| 93 | int ltt_tracefile_seek_time(ltt_tracefile *t, ltt_time time); |
| 94 | |
| 95 | |
| 96 | /* Read the next event */ |
| 97 | |
| 98 | ltt_event *ltt_tracefile_read(ltt_tracefile *t); |
| 99 | |
| 100 | #endif // TRACE_H |
projects / lttv.git / blame