report-generator: reafactor process generator
[apps/native/ttsd-worker-task.git] / src / report-generator.c
index 0bfb232..9869bcb 100644 (file)
  * limitations under the License.
  */
 
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <math.h>
+
 #include "report-generator.h"
+#include "log.h"
+#include "err-check.h"
+#include "appinfo-provider.h"
+#include "sys-stats.h"
+#include "clock.h"
+#include "proc-scanner.h"
+#include "process.h"
+#include "json-schema-defs.h"
+
+struct report_generator_system {
+       /** system cpu usage statistics */
+       struct sys_stats stats;
+};
+
+struct report_generator_process
+{
+       proc_scanner_t *scanner;
+       report_generator_filter_cb filter;
+       void *user_data;
+       JsonBuilder *current_builder;
+};
+
+struct report_generator_top
+{
+       struct sys_stats sys_stats;
+       proc_scanner_t *scanner;
+       report_generator_top_type_e type;
+       int limit;
+};
+
+struct report_generator_top_closure {
+       struct sys_stats sys_stats;
+       int current_index; int max_index;
+       struct process_usage_report *usage_report;
+};
+
+static int _report_generator_top_report_generator_scan(report_generator_top_t *generator);
 
 report_generator_system_t *report_generator_new_system_report_generator()
 {
-       return NULL;
+       report_generator_system_t *ret = calloc(1, sizeof(struct report_generator_system));
+       if (!ret)
+               return NULL;
+
+       if (sys_stats_update(&ret->stats) != 0) {
+               ERR("stats_update_system_stats failed");
+               free(ret);
+               return NULL;
+       }
+
+       return ret;
 }
 
 void report_generator_free_system_generator(report_generator_system_t *generator)
 {
+       if (!generator)
+               return;
+
+       free(generator);
 }
 
-report_generator_process_t *report_generator_new_process_report_generator(int pid)
+report_generator_process_t *report_generator_new_process_report_generator()
 {
+       report_generator_process_t *ret = calloc(1, sizeof(struct report_generator_process));
+       if (!ret)
+               return NULL;
+
+       ret->scanner = proc_scanner_new();
+       if (!ret->scanner) goto err;
+
+       if (proc_scanner_scan(ret->scanner) != 0) {
+               ERR("proc_scanner_scan failed");
+               goto err;
+       }
+
+       return ret;
+
+err:
+       proc_scanner_free(ret->scanner);
+       free(ret);
        return NULL;
 }
 
 void report_generator_free_process_generator(report_generator_process_t *generator)
 {
+       if (!generator) return;
+       proc_scanner_free(generator->scanner);
+       free(generator);
 }
 
-int report_generator_generate_system_cpu_usage_report(
-               report_generator_system_t *generator,
-               int interval,
-               struct system_cpu_usage_report *report)
+static bool _match_proc_and_append(struct process *proc, void *data)
 {
-       return -1;
+       report_generator_process_t *gen = data;
+
+       if (gen->filter && gen->filter(proc, gen->user_data)) {
+               process_serialize(proc, gen->current_builder);
+       }
+
+       return true;
 }
 
-int report_generator_generate_percpu_usage_report(
-               report_generator_system_t *generator,
-               int interval,
-               struct system_percpu_usage_report **report)
+int report_generator_generate_process_report(
+               report_generator_process_t *generator,
+               JsonBuilder *builder)
 {
-       return -1;
+       ON_NULL_RETURN_VAL(generator, -1);
+       ON_NULL_RETURN_VAL(builder, -1);
+
+       // refresh data
+       if (proc_scanner_scan(generator->scanner) != 0) {
+               ERR("proc_scanner_scan failed");
+               return -1;
+       }
+
+       generator->current_builder = builder;
+       json_builder_begin_object(builder);
+
+       json_builder_set_member_name(builder, SCHEMA_TYPE);
+       json_builder_add_string_value(builder, SCHEMA_TYPE_PROCESS);
+
+       json_builder_set_member_name(builder, "time");
+       json_builder_add_int_value(builder, clock_realtime_get());
+
+       json_builder_set_member_name(builder, SCHEMA_RESULT_DATA_PROCESS);
+       json_builder_begin_array(builder);
+
+       proc_scanner_foreach_process(generator->scanner, _match_proc_and_append, generator);
+       json_builder_end_array(builder);
+
+       json_builder_end_object(builder); // end report
+
+       generator->current_builder = NULL;
+       return 0;
+}
+
+void report_generator_set_filter(
+               report_generator_process_t *generator,
+               report_generator_filter_cb cb, const void *user_data)
+{
+       ON_NULL_RETURN(generator);
+       ON_NULL_RETURN(cb);
+
+       generator->filter = cb;
+       generator->user_data = (void*)user_data;
 }
 
-int report_generator_generate_system_memory_usage_report(
+int report_generator_generate_system_report(
                report_generator_system_t *generator,
-               struct system_memory_usage_report *report)
+               struct system_report *report)
 {
-       return -1;
+       ON_NULL_RETURN_VAL(generator, -1);
+       ON_NULL_RETURN_VAL(report, -1);
+
+       if (sys_stats_update(&generator->stats) != 0) {
+               ERR("stats_update_system_stats failed.");
+               return -1;
+       }
+
+       if (sys_stats_get_cpu_usage_percentage(&generator->stats, &report->cpu))
+       {
+               ERR("stats_get_system_cpu_usage_average failed");
+               return -1;
+       }
+
+       if (sys_stats_get_memory_usage_percentage(&generator->stats, &report->memory) != 0) {
+               ERR("stats_get_system_memory_usage failed.");
+               return -1;
+       }
+
+       report->time = clock_realtime_get();
+
+       return 0;
 }
 
-int report_generator_generate_process_cpu_usage_report(
-               report_generator_process_t *generator,
-               int interval,
-               struct process_cpu_usage_report *report)
+int report_generator_generate_load_average_report(struct system_load_average_report *report)
 {
-       return -1;
+       ON_NULL_RETURN_VAL(report, -1);
+
+       float a1, a5, a15;
+
+       if (sys_stats_get_load_averages(&a1, &a5, &a15) != 0) {
+               ERR("stats_get_load_averages failed.");
+               return -1;
+       }
+
+       report->time = clock_realtime_get();
+       report->one_min_avg = a1;
+       report->five_min_avg = a5;
+       report->fifteen_min_avg = a15;
+
+       return 0;
 }
 
-int report_generator_generate_proccess_memory_usage_report(
-               report_generator_process_t *generator,
-               struct process_memory_usage_report *report)
+report_generator_top_t *report_generator_new_top_report_generator(report_generator_top_type_e type, int limit)
 {
-       return -1;
+       report_generator_top_t *gen = calloc(1, sizeof(report_generator_top_t));
+       if (!gen) {
+               ERR("calloc failed.");
+               return NULL;
+       }
+
+       gen->type = type;
+       gen->limit = limit;
+       gen->scanner = proc_scanner_new();
+       if (!gen->scanner) {
+               report_generator_free_top_generator(gen);
+               return NULL;
+       }
+       // run initial scan, so other next report will have valid data.
+       if (_report_generator_top_report_generator_scan(gen) != 0) {
+               report_generator_free_top_generator(gen);
+               return NULL;
+       }
+       if (sys_stats_update(&gen->sys_stats) != 0) {
+               report_generator_free_top_generator(gen);
+               return NULL;
+       }
+
+       return gen;
 }
 
-int report_generator_generate_load_average_report(struct system_load_average_report *report)
+void report_generator_free_top_generator(report_generator_top_t *generator)
 {
+       if (!generator) return;
+       proc_scanner_free(generator->scanner);
+       free(generator);
+}
+
+static bool _append_to_mem_report(struct process *proc, void *data)
+{
+       struct report_generator_top_closure *closure = data;
+       struct process_usage_report report = {0,};
+       const char *appid;
+       int mem;
+
+       if (closure->current_index >= closure->max_index)
+               return false;
+
+       if (process_get_memory_usage(proc, &mem) != 0) {
+               report.usage = NAN;
+       } else {
+               report.usage = (float)mem / closure->sys_stats.total_memory;
+       }
+
+       appid = process_get_appid(proc);
+       if (appid) strncpy(report.app_id, appid, sizeof(report.app_id));
+       report.pid = process_get_pid(proc);
+       report.time = clock_realtime_get();
+       closure->usage_report[closure->current_index++] = report;
+
+       return true;
+}
+
+static bool _append_to_cpu_report(struct process *proc, void *data)
+{
+       struct report_generator_top_closure *closure = data;
+       struct process_usage_report report = {0,};
+       const char *appid;
+
+       if (closure->current_index >= closure->max_index)
+               return false;
+
+       if (process_get_cpu_usage_percentage(proc, &report.usage) != 0) {
+               report.usage = NAN;
+       }
+
+       appid = process_get_appid(proc);
+       if (appid) strncpy(report.app_id, appid, sizeof(report.app_id));
+       report.pid = process_get_pid(proc);
+       report.time = clock_realtime_get();
+       closure->usage_report[closure->current_index++] = report;
+
+       return true;
+}
+
+static int _sort_by_cpu_usage(struct process *proc1, struct process *proc2)
+{
+       unsigned long long usage1, usage2;
+       if (process_get_cpu_usage(proc1, &usage1) != 0) {
+               return 1;
+       }
+       if (process_get_cpu_usage(proc2, &usage2) != 0) {
+               return -1;
+       }
+       return usage2 - usage1;
+}
+
+static int _sort_by_memory_usage(struct process *proc1, struct process *proc2)
+{
+       int usage1, usage2;
+       if (process_get_memory_usage(proc1, &usage1) != 0) {
+               return 1;
+       }
+       if (process_get_memory_usage(proc2, &usage2) != 0) {
+               return -1;
+       }
+       return usage2 - usage1;
+}
+
+static int _report_generator_top_report_generator_scan_apps(
+               report_generator_top_t *generator)
+{
+       app_info_iterator_t *iter = app_info_provider_get_running_applications();
+       int i = 0;
+
+       if (!iter) {
+               return -1;
+       }
+
+       int count = app_info_iterator_get_count(iter);
+       if (count < 1) {
+               app_info_iterator_free(iter);
+               return -1;
+       }
+
+       int *pids = calloc(count, sizeof(int));
+       if (!pids) {
+               app_info_iterator_free(iter);
+               return -1;
+       }
+
+       do {
+               pids[i++] = app_info_iterator_get_pid(iter);
+       }
+       while (app_info_iterator_next(iter));
+
+       app_info_iterator_free(iter);
+
+       int ret = proc_scanner_scan_pids(generator->scanner, pids, i);
+       free(pids);
+       return ret;
+}
+
+static int _report_generator_top_report_generator_scan_all(
+               report_generator_top_t *generator)
+{
+       return proc_scanner_scan(generator->scanner);
+}
+
+static int _report_generator_top_report_generator_scan(
+               report_generator_top_t *generator)
+{
+       switch (generator->type) {
+               case REPORT_GENERATOR_TOP_TYPE_APPS:
+                       return _report_generator_top_report_generator_scan_apps(generator);
+               case REPORT_GENERATOR_TOP_TYPE_ALL:
+                       return _report_generator_top_report_generator_scan_all(generator);
+                       break;
+       }
+
        return -1;
 }
 
+int report_generator_generate_top_cpu_report(
+               report_generator_top_t *generator,
+               struct process_usage_report **report,
+               int *n_reports)
+{
+       ON_NULL_RETURN_VAL(generator, -1);
+       ON_NULL_RETURN_VAL(report, -1);
+       ON_NULL_RETURN_VAL(n_reports, -1);
+
+       struct report_generator_top_closure closure = {0,};
+
+       if (sys_stats_update(&generator->sys_stats) != 0) {
+               return -1;
+       }
+
+       if (_report_generator_top_report_generator_scan(generator) != 0) {
+               return -1;
+       }
+
+       if (proc_scanner_sort_processes(generator->scanner, _sort_by_cpu_usage) != 0) {
+               return -1;
+       }
+
+       closure.max_index = generator->limit;
+       closure.sys_stats = generator->sys_stats;
+       closure.usage_report = calloc(generator->limit, sizeof(struct process_usage_report));
+       if (!closure.usage_report) {
+               return -1;
+       }
+
+       if (proc_scanner_foreach_process(generator->scanner, _append_to_cpu_report, &closure) != 0) {
+               free(closure.usage_report);
+               return -1;
+       }
+
+       *report = closure.usage_report;
+       *n_reports = closure.current_index;
+
+       return 0;
+}
+
+int report_generator_generate_top_memory_report(
+               report_generator_top_t *generator,
+               struct process_usage_report **report,
+               int *n_reports)
+{
+       ON_NULL_RETURN_VAL(generator, -1);
+       ON_NULL_RETURN_VAL(report, -1);
+       ON_NULL_RETURN_VAL(n_reports, -1);
+
+       struct report_generator_top_closure closure = {0,};
+
+       if (sys_stats_update(&generator->sys_stats) != 0) {
+               return -1;
+       }
+
+       if (_report_generator_top_report_generator_scan(generator) != 0) {
+               return -1;
+       }
+
+       if (proc_scanner_sort_processes(generator->scanner, _sort_by_memory_usage) != 0) {
+               return -1;
+       }
+
+       closure.max_index = generator->limit;
+       closure.sys_stats = generator->sys_stats;
+       closure.usage_report = calloc(generator->limit, sizeof(struct process_usage_report));
+       if (!closure.usage_report) {
+               return -1;
+       }
+
+       if (proc_scanner_foreach_process(generator->scanner, _append_to_mem_report, &closure) != 0) {
+               free(closure.usage_report);
+               return -1;
+       }
+
+       *report = closure.usage_report;
+       *n_reports = closure.current_index;
+
+       return 0;
+}