X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=lttngtop%2Fcommon.c;fp=lttngtop%2Fcommon.c;h=0000000000000000000000000000000000000000;hb=37010c3c1a006bf7f3181a1746751c99645ad4bb;hp=2a0f1f47c89a5c3054dd5a6db10d3fa93d667e6c;hpb=1fc22eb45fde328b82aa5a5e296fdc086e77a32e;p=lttngtop.git diff --git a/lttngtop/common.c b/lttngtop/common.c deleted file mode 100644 index 2a0f1f4..0000000 --- a/lttngtop/common.c +++ /dev/null @@ -1,317 +0,0 @@ -/* - * Copyright (C) 2011 Julien Desfossez - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License Version 2 as - * published by the Free Software Foundation; - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, - * MA 02111-1307, USA. - */ - -#include -#include -#include "common.h" - -struct processtop *find_process_tid(struct lttngtop *ctx, int tid, char *comm) -{ - gint i; - struct processtop *tmp; - - for (i = 0; i < ctx->process_table->len; i++) { - tmp = g_ptr_array_index(ctx->process_table, i); - if (tmp && tmp->tid == tid) - return tmp; - } - return NULL; -} - -struct processtop* add_proc(struct lttngtop *ctx, int tid, char *comm, - unsigned long timestamp) -{ - struct processtop *newproc; - - /* if the PID already exists, we just rename the process */ - /* FIXME : need to integrate with clone/fork/exit to be accurate */ - newproc = find_process_tid(ctx, tid, comm); - if (!newproc) { - newproc = malloc(sizeof(struct processtop)); - memset(newproc, 0, sizeof(struct processtop)); - newproc->tid = tid; - newproc->birth = timestamp; - newproc->process_files_table = g_ptr_array_new(); - newproc->threads = g_ptr_array_new(); - newproc->perf = g_hash_table_new(g_direct_hash, g_direct_equal); - newproc->iostream = malloc(sizeof(struct iostream)); - newproc->iostream->ret_read = 0; - newproc->iostream->ret_write = 0; - newproc->iostream->ret_total = 0; - newproc->iostream->syscall_info = NULL; - g_ptr_array_add(ctx->process_table, newproc); - } - newproc->comm = strdup(comm); - - return newproc; -} - -struct processtop* update_proc(struct processtop* proc, int pid, int tid, - int ppid, char *comm) -{ - if (proc) { - proc->pid = pid; - proc->tid = tid; - proc->ppid = ppid; - if (strcmp(proc->comm, comm) != 0) { - free(proc->comm); - proc->comm = strdup(comm); - } - } - return proc; -} - -/* - * This function just sets the time of death of a process. - * When we rotate the cputime we remove it from the process list. - */ -void death_proc(struct lttngtop *ctx, int tid, char *comm, - unsigned long timestamp) -{ - struct processtop *tmp; - tmp = find_process_tid(ctx, tid, comm); - if (tmp && strcmp(tmp->comm, comm) == 0) - tmp->death = timestamp; -} - -struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm, - unsigned long timestamp) -{ - struct processtop *tmp; - tmp = find_process_tid(ctx, tid, comm); - if (tmp && strcmp(tmp->comm, comm) == 0) - return tmp; - return add_proc(ctx, tid, comm, timestamp); -} - -void add_thread(struct processtop *parent, struct processtop *thread) -{ - gint i; - struct processtop *tmp; - - for (i = 0; i < parent->threads->len; i++) { - tmp = g_ptr_array_index(parent->threads, i); - if (tmp == thread) - return; - } - g_ptr_array_add(parent->threads, thread); -} - -struct cputime* add_cpu(int cpu) -{ - struct cputime *newcpu; - - newcpu = malloc(sizeof(struct cputime)); - newcpu->id = cpu; - newcpu->current_task = NULL; - newcpu->perf = g_hash_table_new(g_direct_hash, g_direct_equal); - - g_ptr_array_add(lttngtop.cpu_table, newcpu); - - return newcpu; -} -struct cputime* get_cpu(int cpu) -{ - gint i; - struct cputime *tmp; - - for (i = 0; i < lttngtop.cpu_table->len; i++) { - tmp = g_ptr_array_index(lttngtop.cpu_table, i); - if (tmp->id == cpu) - return tmp; - } - - return add_cpu(cpu); -} - -/* - * At the end of a sampling period, we need to display the cpu time for each - * process and to reset it to zero for the next period - */ -void rotate_cputime(unsigned long end) -{ - gint i; - struct cputime *tmp; - unsigned long elapsed; - - for (i = 0; i < lttngtop.cpu_table->len; i++) { - tmp = g_ptr_array_index(lttngtop.cpu_table, i); - elapsed = end - tmp->task_start; - if (tmp->current_task) { - tmp->current_task->totalcpunsec += elapsed; - tmp->current_task->threadstotalcpunsec += elapsed; - if (tmp->current_task->pid != tmp->current_task->tid && - tmp->current_task->threadparent) { - tmp->current_task->threadparent->threadstotalcpunsec += elapsed; - } - } - tmp->task_start = end; - } -} - -void reset_perf_counter(gpointer key, gpointer value, gpointer user_data) -{ - ((struct perfcounter*) value)->count = 0; -} - -void copy_perf_counter(gpointer key, gpointer value, gpointer new_table) -{ - struct perfcounter *newperf; - - newperf = malloc(sizeof(struct perfcounter)); - newperf->count = ((struct perfcounter *) value)->count; - newperf->visible = ((struct perfcounter *) value)->visible; - newperf->sort = ((struct perfcounter *) value)->sort; - g_hash_table_insert((GHashTable *) new_table, key, newperf); -} - -void rotate_perfcounter() { - int i; - struct processtop *tmp; - for (i = 0; i < lttngtop.process_table->len; i++) { - tmp = g_ptr_array_index(lttngtop.process_table, i); - g_hash_table_foreach(tmp->perf, reset_perf_counter, NULL); - } -} - -void cleanup_processtop() -{ - gint i; - struct processtop *tmp; - - for (i = 0; i < lttngtop.process_table->len; i++) { - tmp = g_ptr_array_index(lttngtop.process_table, i); - tmp->totalcpunsec = 0; - tmp->threadstotalcpunsec = 0; - tmp->iostream->ret_read = 0; - tmp->iostream->ret_write = 0; - } -} - -struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end) -{ - gint i, j; - unsigned long time; - struct lttngtop *dst; - struct processtop *tmp, *tmp2, *new; - struct cputime *tmpcpu, *newcpu; - struct files *tmpfile, *newfile; - - dst = malloc(sizeof(struct lttngtop)); - dst = memset(dst, 0, sizeof(struct lttngtop)); - dst->start = start; - dst->end = end; - dst->process_table = g_ptr_array_new(); - dst->files_table = g_ptr_array_new(); - dst->cpu_table = g_ptr_array_new(); - dst->perf_list = g_hash_table_new(g_direct_hash, g_direct_equal); - - rotate_cputime(end); - - g_hash_table_foreach(lttngtop.perf_list, copy_perf_counter, dst->perf_list); - for (i = 0; i < lttngtop.process_table->len; i++) { - tmp = g_ptr_array_index(lttngtop.process_table, i); - new = malloc(sizeof(struct processtop)); - - memcpy(new, tmp, sizeof(struct processtop)); - new->threads = g_ptr_array_new(); - new->comm = strdup(tmp->comm); - new->process_files_table = g_ptr_array_new(); - new->perf = g_hash_table_new(g_direct_hash, g_direct_equal); - g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf); - - new->iostream = malloc(sizeof(struct iostream)); - memcpy(new->iostream, tmp->iostream, sizeof(struct iostream)); - /* compute the stream speed */ - if (end - start != 0) - { - time = (end - start)/NSEC_PER_SEC; - new->iostream->ret_read = new->iostream->ret_read/(time); - new->iostream->ret_write = new->iostream->ret_write/(time); - } - - for (j = 0; j < tmp->process_files_table->len; j++) { - tmpfile = g_ptr_array_index(tmp->process_files_table, j); - newfile = malloc(sizeof(struct files)); - - memcpy(newfile, tmpfile, sizeof(struct files)); - - newfile->name = strdup(tmpfile->name); - newfile->ref = new; - - g_ptr_array_add(new->process_files_table, newfile); - g_ptr_array_add(dst->files_table, newfile); - - /* - * if the process died during the last period, we remove all - * files associated with if after the copy - */ - if (tmp->death > 0 && tmp->death < end) { - g_ptr_array_remove(tmp->process_files_table, tmpfile); - free(tmpfile); - } - } - g_ptr_array_add(dst->process_table, new); - - /* - * if the process died during the last period, we remove it from - * the current process list after the copy - */ - if (tmp->death > 0 && tmp->death < end) { - g_ptr_array_remove(lttngtop.process_table, tmp); - g_ptr_array_free(tmp->threads, TRUE); - free(tmp->comm); - g_ptr_array_free(tmp->process_files_table, TRUE); - g_hash_table_destroy(tmp->perf); - free(tmp); - } - } - rotate_perfcounter(); - - for (i = 0; i < lttngtop.cpu_table->len; i++) { - tmpcpu = g_ptr_array_index(lttngtop.cpu_table, i); - newcpu = malloc(sizeof(struct cputime)); - memcpy(newcpu, tmpcpu, sizeof(struct cputime)); - newcpu->perf = g_hash_table_new(g_direct_hash, g_direct_equal); - g_hash_table_foreach(tmpcpu->perf, copy_perf_counter, newcpu->perf); - /* - * note : we don't care about the current process pointer in the copy - * so the reference is invalid after the memcpy - */ - g_ptr_array_add(dst->cpu_table, newcpu); - } - /* create the threads index if required */ - for (i = 0; i < dst->process_table->len; i++) { - tmp = g_ptr_array_index(dst->process_table, i); - if (tmp->pid == tmp->tid) { - for (j = 0; j < dst->process_table->len; j++) { - tmp2 = g_ptr_array_index(dst->process_table, j); - if (tmp2->pid == tmp->pid) { - tmp2->threadparent = tmp; - g_ptr_array_add(tmp->threads, tmp2); - } - } - } - } - - // update_global_stats(dst); - cleanup_processtop(); - - return dst; -} -