/* *************************************************************************** * Read stats for current activity from file and print them. * Display at most <count> lines of stats (and possibly comments inserted * in file) located between two LINUX RESTART messages. * * IN: * @ifd File descriptor of input file. * @fpos Position in file where reading must start. * @curr Index in array for current sample statistics. * @act_id Activity to display, or ~0 for all. * @file_actlst List of (known or unknown) activities in file. * @cpu_nr Number of processors for current activity data file. * @rectime Structure where timestamp (expressed in local time or in UTC * depending on whether options -T/-t have been used or not) can * be saved for current record. * @loctime Structure where timestamp (expressed in local time) can be * saved for current record. * @file Name of file being read. * @file_magic file_magic structure filled with file magic header data. * * OUT: * @curr Index in array for next sample statistics. * @cnt Number of lines of stats remaining to write. * @eosaf Set to TRUE if EOF (end of file) has been reached. * @reset Set to TRUE if last_uptime variable should be * reinitialized (used in next_slice() function). *************************************************************************** */ void rw_curr_act_stats(int ifd, off_t fpos, int *curr, long *cnt, int *eosaf, unsigned int act_id, int *reset, struct file_activity *file_actlst, __nr_t cpu_nr, struct tm *rectime, struct tm *loctime, char *file, struct file_magic *file_magic) { int rtype; int next, reset_cd; if (lseek(ifd, fpos, SEEK_SET) < fpos) { perror("lseek"); exit(2); } if (DISPLAY_FIELD_LIST(fmt[f_position]->options)) { /* Print field list */ list_fields(act_id); } /* * Restore the first stats collected. * Used to compute the rate displayed on the first line. */ copy_structures(act, id_seq, record_hdr, !*curr, 2); *cnt = count; reset_cd = 1; do { /* Display <count> lines of stats */ *eosaf = read_next_sample(ifd, IGNORE_RESTART | DONT_READ_VOLATILE, *curr, file, &rtype, 0, file_magic, file_actlst, rectime, loctime); if (!*eosaf && (rtype != R_RESTART) && (rtype != R_COMMENT)) { next = logic2_write_stats(*curr, *reset, cnt, tm_start.use, tm_end.use, act_id, cpu_nr, rectime, loctime, reset_cd); reset_cd = 0; if (next) { /* * next is set to 1 when we were close enough to desired interval. * In this case, the call to logic2_write_stats() has actually * displayed a line of stats. */ *curr ^= 1; if (*cnt > 0) { (*cnt)--; } } *reset = FALSE; } } while (*cnt && !*eosaf && (rtype != R_RESTART)); *reset = TRUE; }
/* *************************************************************************** * Display file contents in selected format (logic #1). * Logic #1: Grouped by record type. Sorted by timestamp. * Formats: XML, JSON * * IN: * @ifd File descriptor of input file. * @file_actlst List of (known or unknown) activities in file. * @file System activity data file name (name of file being read). * @file_magic System activity file magic header. * @cpu_nr Number of processors for current activity data file. * @rectime Structure where timestamp (expressed in local time or in UTC * depending on whether options -T/-t have been used or not) can * be saved for current record. * @loctime Structure where timestamp (expressed in local time) can be * saved for current record. *************************************************************************** */ void logic1_display_loop(int ifd, struct file_activity *file_actlst, char *file, struct file_magic *file_magic, __nr_t cpu_nr, struct tm *rectime, struct tm *loctime) { int curr, tab = 0, rtype; int eosaf, next, reset = FALSE; __nr_t save_act_nr[NR_ACT] = {0}; long cnt = 1; off_t fpos; /* Save current file position */ if ((fpos = lseek(ifd, 0, SEEK_CUR)) < 0) { perror("lseek"); exit(2); } /* Save number of activities items for current file position */ sr_act_nr(save_act_nr, DO_SAVE); /* Print header (eg. XML file header) */ if (*fmt[f_position]->f_header) { (*fmt[f_position]->f_header)(&tab, F_BEGIN, file, file_magic, &file_hdr, cpu_nr, act, id_seq); } /* Process activities */ if (*fmt[f_position]->f_statistics) { (*fmt[f_position]->f_statistics)(&tab, F_BEGIN); } do { /* * If this record is a special (RESTART or COMMENT) one, * skip it and try to read the next record in file. */ do { eosaf = read_next_sample(ifd, IGNORE_COMMENT | IGNORE_RESTART, 0, file, &rtype, tab, file_magic, file_actlst, rectime, loctime); } while (!eosaf && ((rtype == R_RESTART) || (rtype == R_COMMENT) || (tm_start.use && (datecmp(loctime, &tm_start) < 0)) || (tm_end.use && (datecmp(loctime, &tm_end) >= 0)))); /* Save the first stats collected. Used for example in next_slice() function */ copy_structures(act, id_seq, record_hdr, 2, 0); curr = 1; cnt = count; reset = TRUE; if (!eosaf) { do { eosaf = read_next_sample(ifd, IGNORE_COMMENT | IGNORE_RESTART, curr, file, &rtype, tab, file_magic, file_actlst, rectime, loctime); if (!eosaf && (rtype != R_COMMENT) && (rtype != R_RESTART)) { if (*fmt[f_position]->f_statistics) { (*fmt[f_position]->f_statistics)(&tab, F_MAIN); } /* next is set to 1 when we were close enough to desired interval */ next = generic_write_stats(curr, tm_start.use, tm_end.use, reset, &cnt, &tab, cpu_nr, rectime, loctime, FALSE, ALL_ACTIVITIES); if (next) { curr ^= 1; if (cnt > 0) { cnt--; } } reset = FALSE; } } while (cnt && !eosaf && (rtype != R_RESTART)); if (!cnt) { /* Go to next Linux restart, if possible */ do { eosaf = read_next_sample(ifd, IGNORE_COMMENT | IGNORE_RESTART, curr, file, &rtype, tab, file_magic, file_actlst, rectime, loctime); } while (!eosaf && (rtype != R_RESTART)); } reset = TRUE; } } while (!eosaf); if (*fmt[f_position]->f_statistics) { (*fmt[f_position]->f_statistics)(&tab, F_END); } /* Rewind file... */ if (lseek(ifd, fpos, SEEK_SET) < fpos) { perror("lseek"); exit(2); } /* * ... and restore number of items for volatile activities * for this position in file. */ sr_act_nr(save_act_nr, DO_RESTORE); /* Process now RESTART entries to display restart messages */ if (*fmt[f_position]->f_restart) { (*fmt[f_position]->f_restart)(&tab, F_BEGIN, NULL, NULL, FALSE, &file_hdr, 0); } do { eosaf = read_next_sample(ifd, IGNORE_COMMENT, 0, file, &rtype, tab, file_magic, file_actlst, rectime, loctime); } while (!eosaf); if (*fmt[f_position]->f_restart) { (*fmt[f_position]->f_restart)(&tab, F_END, NULL, NULL, FALSE, &file_hdr, 0); } /* Rewind file... */ if (lseek(ifd, fpos, SEEK_SET) < fpos) { perror("lseek"); exit(2); } /* * ... and restore number of items for volatile activities * for this position in file. */ sr_act_nr(save_act_nr, DO_RESTORE); /* Last, process COMMENT entries to display comments */ if (DISPLAY_COMMENT(flags)) { if (*fmt[f_position]->f_comment) { (*fmt[f_position]->f_comment)(&tab, F_BEGIN, NULL, NULL, 0, NULL, &file_hdr); } do { eosaf = read_next_sample(ifd, IGNORE_RESTART, 0, file, &rtype, tab, file_magic, file_actlst, rectime, loctime); } while (!eosaf); if (*fmt[f_position]->f_comment) { (*fmt[f_position]->f_comment)(&tab, F_END, NULL, NULL, 0, NULL, &file_hdr); } } /* Print header trailer */ if (*fmt[f_position]->f_header) { (*fmt[f_position]->f_header)(&tab, F_END, file, file_magic, &file_hdr, cpu_nr, act, id_seq); } }
/* *************************************************************************** * Read stats for current activity from file and display its SVG graphs. * At most <count> lines of stats are taken into account. * * IN: * @ifd File descriptor of input file. * @fpos Position in file where reading must start. * @curr Index in array for current sample statistics. * @p Current activity position. * @file_actlst List of (known or unknown) activities in file. * @cpu_nr Number of processors for current activity data file. * @rectime Structure where timestamp (expressed in local time or in UTC * depending on whether options -T/-t have been used or not) can * be saved for current record. * @loctime Structure where timestamp (expressed in local time) can be * saved for current record. * @file Name of file being read. * @file_magic file_magic structure filled with file magic header data. * @save_act_nr Array where the number of volatile activities are saved * for current position in file. * @g_nr Number of graphs already displayed (for all activities). * * OUT: * @cnt Number of lines of stats remaining to write. * @eosaf Set to TRUE if EOF (end of file) has been reached. * @reset Set to TRUE if last_uptime variable should be * reinitialized (used in next_slice() function). * @g_nr Total number of graphs displayed (including current activity). *************************************************************************** */ void display_curr_act_graphs(int ifd, off_t fpos, int *curr, long *cnt, int *eosaf, int p, int *reset, struct file_activity *file_actlst, __nr_t cpu_nr, struct tm *rectime, struct tm *loctime, char *file, struct file_magic *file_magic, __nr_t save_act_nr[], int *g_nr) { struct svg_parm parm; int rtype; int next, reset_cd; /* Rewind file... */ if (lseek(ifd, fpos, SEEK_SET) < fpos) { perror("lseek"); exit(2); } /* * ... and restore number of items for volatile activities * for this position in file. */ sr_act_nr(save_act_nr, DO_RESTORE); /* * Restore the first stats collected. * Used to compute the rate displayed on the first line. */ copy_structures(act, id_seq, record_hdr, !*curr, 2); parm.graph_no = *g_nr; parm.record_hdr = &record_hdr[2]; parm.restart = TRUE; *cnt = count; reset_cd = 1; /* Allocate graphs arrays */ (*act[p]->f_svg_print)(act[p], !*curr, F_BEGIN, &parm, 0, &record_hdr[!*curr]); do { *eosaf = read_next_sample(ifd, IGNORE_RESTART | IGNORE_COMMENT | SET_TIMESTAMPS, *curr, file, &rtype, 0, file_magic, file_actlst, rectime, loctime); if (!*eosaf && (rtype != R_COMMENT) && (rtype != R_RESTART)) { next = generic_write_stats(*curr, tm_start.use, tm_end.use, *reset, cnt, &parm, cpu_nr, rectime, loctime, reset_cd, act[p]->id); reset_cd = 0; if (next) { /* * next is set to 1 when we were close enough to desired interval. * In this case, the call to generic_write_stats() has actually * displayed a line of stats. */ parm.restart = FALSE; *curr ^= 1; if (*cnt > 0) { (*cnt)--; } } *reset = FALSE; } if (!*eosaf && (rtype == R_RESTART)) { parm.restart = TRUE; *reset = TRUE; /* Go to next statistics record, if possible */ do { *eosaf = read_next_sample(ifd, IGNORE_RESTART | IGNORE_COMMENT | SET_TIMESTAMPS, *curr, file, &rtype, 0, file_magic, file_actlst, rectime, loctime); } while (!*eosaf && ((rtype == R_RESTART) || (rtype == R_COMMENT))); *curr ^= 1; } } while (!*eosaf); *reset = TRUE; /* Actually display graphs for current activity */ (*act[p]->f_svg_print)(act[p], *curr, F_END, &parm, 0, &record_hdr[!*curr]); /* Update total number of graphs already displayed */ *g_nr = parm.graph_no; }
/* *************************************************************************** * Compute the number of SVG graphs to display. Each activity selected may * have several graphs. Moreover we have to take into account volatile * activities (eg. CPU) for which the number of graphs will depend on the * highest number of items (eg. maximum number of CPU) saved in the file. * This number may be higher than the real number of graphs that will be * displayed since some items have a preallocation constant. * * IN: * @ifd File descriptor of input file. * @file Name of file being read. * @file_magic file_magic structure filled with file magic header data. * @file_actlst List of (known or unknown) activities in file. * @rectime Structure where timestamp (expressed in local time or in UTC * depending on whether options -T/-t have been used or not) can * be saved for current record. * @loctime Structure where timestamp (expressed in local time) can be * saved for current record. * * RETURNS: * Total number of graphs to display, taking into account only activities * to be displayed, and selected period of time (options -s/-e). *************************************************************************** */ int get_svg_graph_nr(int ifd, char *file, struct file_magic *file_magic, struct file_activity *file_actlst, struct tm *rectime, struct tm *loctime) { int i, n, p, eosaf; int rtype, new_tot_g_nr, tot_g_nr = 0; off_t fpos; __nr_t save_act_nr[NR_ACT] = {0}; /* Save current file position and items number */ if ((fpos = lseek(ifd, 0, SEEK_CUR)) < 0) { perror("lseek"); exit(2); } sr_act_nr(save_act_nr, DO_SAVE); /* Init total number of graphs for each activity */ for (i = 0; i < NR_ACT; i++) { id_g_nr[i] = 0; } /* Look for the first record that will be displayed */ do { eosaf = read_next_sample(ifd, IGNORE_RESTART | IGNORE_COMMENT | SET_TIMESTAMPS, 0, file, &rtype, 0, file_magic, file_actlst, rectime, loctime); if (eosaf) /* No record to display => no graph too */ return 0; } while ((tm_start.use && (datecmp(loctime, &tm_start) < 0)) || (tm_end.use && (datecmp(loctime, &tm_end) >= 0))); do { new_tot_g_nr = 0; for (i = 0; i < NR_ACT; i++) { if (!id_seq[i]) continue; p = get_activity_position(act, id_seq[i], EXIT_IF_NOT_FOUND); if (!IS_SELECTED(act[p]->options)) continue; if (ONE_GRAPH_PER_ITEM(act[p]->options)) { n = act[p]->g_nr * act[p]->nr; } else { n = act[p]->g_nr; } if (n > id_g_nr[i]) { id_g_nr[i] = n; } new_tot_g_nr += n; } if (new_tot_g_nr > tot_g_nr) { tot_g_nr = new_tot_g_nr; } do { eosaf = read_next_sample(ifd, IGNORE_RESTART | IGNORE_COMMENT | SET_TIMESTAMPS, 0, file, &rtype, 0, file_magic, file_actlst, rectime, loctime); if (eosaf || (tm_end.use && (datecmp(loctime, &tm_end) >= 0))) /* End of data file or end time exceeded */ break; } while (rtype != R_RESTART); if (eosaf || (tm_end.use && (datecmp(loctime, &tm_end) >= 0))) /* * End of file, or end time exceeded: * Current number of graphs is up-to-date. */ break; /* * If we have found a RESTART record then we have also read the list of volatile * activities following it, reallocated the structures and changed the number of * items (act[p]->nr) for those volatile activities. So loop again to compute * the new total number of graphs. */ } while (rtype == R_RESTART); /* Rewind file and restore items number */ if (lseek(ifd, fpos, SEEK_SET) < fpos) { perror("lseek"); exit(2); } sr_act_nr(save_act_nr, DO_RESTORE); return tot_g_nr; }
/* *************************************************************************** * Display file contents in selected format (logic #3). * Logic #3: Special logic for SVG output format. * Formats: SVG * * IN: * @ifd File descriptor of input file. * @file_actlst List of (known or unknown) activities in file. * @cpu_nr Number of processors for current activity data file. * @rectime Structure where timestamp (expressed in local time or in UTC * depending on whether options -T/-t have been used or not) can * be saved for current record. * @loctime Structure where timestamp (expressed in local time) can be * saved for current record. * @file Name of file being read. * @file_magic file_magic structure filled with file magic header data. *************************************************************************** */ void logic3_display_loop(int ifd, struct file_activity *file_actlst, __nr_t cpu_nr, struct tm *rectime, struct tm *loctime, char *file, struct file_magic *file_magic) { int i, p; int curr = 1, rtype, g_nr = 0; int eosaf = TRUE, reset = TRUE; long cnt = 1; off_t fpos; int graph_nr = 0; __nr_t save_act_nr[NR_ACT] = {0}; /* Use a decimal point to make SVG code locale independent */ setlocale(LC_NUMERIC, "C"); /* Calculate the number of graphs to display */ graph_nr = get_svg_graph_nr(ifd, file, file_magic, file_actlst, rectime, loctime); if (!graph_nr) /* No graph to display */ return; /* Print SVG header */ if (*fmt[f_position]->f_header) { (*fmt[f_position]->f_header)(&graph_nr, F_BEGIN + F_MAIN, file, file_magic, &file_hdr, cpu_nr, act, id_seq); } /* * If this record is a special (RESTART or COMMENT) one, ignore it and * (try to) get another one. */ do { if (read_next_sample(ifd, IGNORE_RESTART | IGNORE_COMMENT, 0, file, &rtype, 0, file_magic, file_actlst, rectime, loctime)) /* End of sa data file */ return; } while ((rtype == R_RESTART) || (rtype == R_COMMENT) || (tm_start.use && (datecmp(loctime, &tm_start) < 0)) || (tm_end.use && (datecmp(loctime, &tm_end) >= 0))); /* Save the first stats collected. Used for example in next_slice() function */ copy_structures(act, id_seq, record_hdr, 2, 0); /* Save current file position */ if ((fpos = lseek(ifd, 0, SEEK_CUR)) < 0) { perror("lseek"); exit(2); } /* Save number of activities items for current file position */ sr_act_nr(save_act_nr, DO_SAVE); /* For each requested activity, display graphs */ for (i = 0; i < NR_ACT; i++) { if (!id_seq[i]) continue; p = get_activity_position(act, id_seq[i], EXIT_IF_NOT_FOUND); if (!IS_SELECTED(act[p]->options) || !act[p]->g_nr) continue; if (!HAS_MULTIPLE_OUTPUTS(act[p]->options)) { display_curr_act_graphs(ifd, fpos, &curr, &cnt, &eosaf, p, &reset, file_actlst, cpu_nr, rectime, loctime, file, file_magic, save_act_nr, &g_nr); } else { unsigned int optf, msk; optf = act[p]->opt_flags; for (msk = 1; msk < 0x100; msk <<= 1) { if ((act[p]->opt_flags & 0xff) & msk) { act[p]->opt_flags &= (0xffffff00 + msk); display_curr_act_graphs(ifd, fpos, &curr, &cnt, &eosaf, p, &reset, file_actlst, cpu_nr, rectime, loctime, file, file_magic, save_act_nr, &g_nr); act[p]->opt_flags = optf; } } } } /* Print SVG trailer */ if (*fmt[f_position]->f_header) { (*fmt[f_position]->f_header)(&graph_nr, F_END, file, file_magic, &file_hdr, cpu_nr, act, id_seq); } }
/* *************************************************************************** * Display file contents in selected format (logic #2). * Logic #2: Grouped by activity. Sorted by timestamp. Stop on RESTART * records. * Formats: ppc, CSV * * IN: * @ifd File descriptor of input file. * @file_actlst List of (known or unknown) activities in file. * @cpu_nr Number of processors for current activity data file. * @rectime Structure where timestamp (expressed in local time or in UTC * depending on whether options -T/-t have been used or not) can * be saved for current record. * @loctime Structure where timestamp (expressed in local time) can be * saved for current record. * @file Name of file being read. * @file_magic file_magic structure filled with file magic header data. *************************************************************************** */ void logic2_display_loop(int ifd, struct file_activity *file_actlst, __nr_t cpu_nr, struct tm *rectime, struct tm *loctime, char *file, struct file_magic *file_magic) { int i, p; int curr = 1, rtype; int eosaf = TRUE, reset = FALSE; long cnt = 1; off_t fpos; /* Read system statistics from file */ do { /* * If this record is a special (RESTART or COMMENT) one, print it and * (try to) get another one. */ do { if (read_next_sample(ifd, IGNORE_NOTHING, 0, file, &rtype, 0, file_magic, file_actlst, rectime, loctime)) /* End of sa data file */ return; } while ((rtype == R_RESTART) || (rtype == R_COMMENT) || (tm_start.use && (datecmp(loctime, &tm_start) < 0)) || (tm_end.use && (datecmp(loctime, &tm_end) >= 0))); /* Save the first stats collected. Used for example in next_slice() function */ copy_structures(act, id_seq, record_hdr, 2, 0); /* Set flag to reset last_uptime variable. Should be done after a LINUX RESTART record */ reset = TRUE; /* Save current file position */ if ((fpos = lseek(ifd, 0, SEEK_CUR)) < 0) { perror("lseek"); exit(2); } /* Read and write stats located between two possible Linux restarts */ if (DISPLAY_HORIZONTALLY(flags)) { /* * If stats are displayed horizontally, then all activities * are printed on the same line. */ rw_curr_act_stats(ifd, fpos, &curr, &cnt, &eosaf, ALL_ACTIVITIES, &reset, file_actlst, cpu_nr, rectime, loctime, file, file_magic); } else { /* For each requested activity... */ for (i = 0; i < NR_ACT; i++) { if (!id_seq[i]) continue; p = get_activity_position(act, id_seq[i], EXIT_IF_NOT_FOUND); if (!IS_SELECTED(act[p]->options)) continue; if (!HAS_MULTIPLE_OUTPUTS(act[p]->options)) { rw_curr_act_stats(ifd, fpos, &curr, &cnt, &eosaf, act[p]->id, &reset, file_actlst, cpu_nr, rectime, loctime, file, file_magic); } else { unsigned int optf, msk; optf = act[p]->opt_flags; for (msk = 1; msk < 0x100; msk <<= 1) { if ((act[p]->opt_flags & 0xff) & msk) { act[p]->opt_flags &= (0xffffff00 + msk); rw_curr_act_stats(ifd, fpos, &curr, &cnt, &eosaf, act[p]->id, &reset, file_actlst, cpu_nr, rectime, loctime, file, file_magic); act[p]->opt_flags = optf; } } } } } if (!cnt) { /* Go to next Linux restart, if possible */ do { eosaf = read_next_sample(ifd, IGNORE_RESTART | DONT_READ_VOLATILE, curr, file, &rtype, 0, file_magic, file_actlst, rectime, loctime); } while (!eosaf && (rtype != R_RESTART)); } /* * The last record we read was a RESTART one: Print it. * NB: Unlike COMMENTS records (which are displayed for each * activity), RESTART ones are only displayed once. */ if (!eosaf && (record_hdr[curr].record_type == R_RESTART)) { print_special_record(&record_hdr[curr], flags, &tm_start, &tm_end, R_RESTART, ifd, rectime, loctime, file, 0, file_magic, &file_hdr, act, fmt[f_position]); } } while (!eosaf); }