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/* |
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Copyright 2023 Joel Svensson svenssonjoel@yahoo.se |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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#include "lbm_prof.h" |
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#include "platform_mutex.h" |
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static lbm_uint num_samples = 0; |
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static lbm_uint num_system_samples = 0; |
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static lbm_uint num_sleep_samples = 0; |
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extern eval_context_t *ctx_running; |
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extern mutex_t qmutex; |
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extern bool qmutex_initialized; |
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extern volatile bool lbm_system_sleeping; |
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static lbm_prof_t *prof_data; |
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static lbm_uint prof_data_num; |
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#define TRUNC_SIZE(N) (((N) > LBM_PROF_MAX_NAME_SIZE -1) ? LBM_PROF_MAX_NAME_SIZE-1 : N) |
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bool lbm_prof_init(lbm_prof_t *prof_data_buf, |
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lbm_uint prof_data_buf_num) { |
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if (qmutex_initialized && prof_data_buf && prof_data_buf_num > 0) { |
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num_samples = 0; |
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num_system_samples = 0; |
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num_sleep_samples = 0; |
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prof_data_num = prof_data_buf_num; |
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prof_data = prof_data_buf; |
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for (lbm_uint i = 0; i < prof_data_num; i ++) { |
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prof_data_buf[i].cid = -1; |
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prof_data[i].has_name = false; |
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memset(&prof_data_buf[i].name, 0, LBM_PROF_MAX_NAME_SIZE); |
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prof_data_buf[i].count = 0; |
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} |
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} |
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return false; |
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} |
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lbm_uint lbm_prof_get_num_samples(void) { |
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return num_samples; |
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} |
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lbm_uint lbm_prof_get_num_system_samples(void) { |
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return num_system_samples; |
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} |
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lbm_uint lbm_prof_get_num_sleep_samples(void) { |
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return num_sleep_samples; |
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} |
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void lbm_prof_sample(void) { |
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num_samples ++; |
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// Lock mutex so context cannot be destroyed until |
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// we are done storing a sample. |
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mutex_lock(&qmutex); |
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eval_context_t *curr = ctx_running; |
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if (curr != NULL) { |
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lbm_cid id = curr->id; |
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char *name = curr->name; |
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lbm_uint name_len = 0; |
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bool doing_gc = false; |
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if (curr->state & LBM_THREAD_STATE_GC_BIT) { |
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doing_gc = true; |
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} |
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if (name) name_len = strlen(name) + 1; |
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for (lbm_uint i = 0; i < prof_data_num; i ++) { |
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if (prof_data[i].cid == -1) { |
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// add new sample: |
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prof_data[i].cid = id; |
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prof_data[i].count = 1; |
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prof_data[i].gc_count = doing_gc ? 1 : 0; |
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if (name) { |
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memcpy(&prof_data[i].name, name, TRUNC_SIZE(name_len)); |
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prof_data[i].name[LBM_PROF_MAX_NAME_SIZE - 1] = 0; |
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prof_data[i].has_name = true; |
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} |
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break; |
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} |
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if (prof_data[i].cid == id && |
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prof_data[i].has_name && |
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name != NULL && |
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strncmp(prof_data[i].name, name, TRUNC_SIZE(name_len)) == 0) { |
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// found a named existing measurement. |
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prof_data[i].count ++; |
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prof_data[i].gc_count += doing_gc ? 1 : 0; |
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break; |
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} |
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if (prof_data[i].cid == id && |
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!prof_data[i].has_name && |
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name == NULL) { |
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prof_data[i].count ++; |
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prof_data[i].gc_count += doing_gc ? 1 : 0; |
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break; |
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} |
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} |
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} else { |
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if (lbm_system_sleeping) { |
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num_sleep_samples ++; |
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} else { |
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num_system_samples ++; |
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} |
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} |
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mutex_unlock(&qmutex); |
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} |