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/**
* @file lv_profiler_builtin.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_profiler_builtin.h"
#include "../lvgl.h"
#include "../core/lv_global.h"
/*********************
* DEFINES
*********************/
#if LV_USE_PROFILER && LV_USE_PROFILER_BUILTIN
#define profiler_ctx LV_GLOBAL_DEFAULT()->profiler_context
#define LV_PROFILER_STR_MAX_LEN 128
#define LV_PROFILER_TICK_PER_SEC_MAX 1000000
#if LV_USE_OS
#define LV_PROFILER_MULTEX_INIT lv_mutex_init(&profiler_ctx->mutex)
#define LV_PROFILER_MULTEX_DEINIT lv_mutex_delete(&profiler_ctx->mutex)
#define LV_PROFILER_MULTEX_LOCK lv_mutex_lock(&profiler_ctx->mutex)
#define LV_PROFILER_MULTEX_UNLOCK lv_mutex_unlock(&profiler_ctx->mutex)
#else
#define LV_PROFILER_MULTEX_INIT
#define LV_PROFILER_MULTEX_DEINIT
#define LV_PROFILER_MULTEX_LOCK
#define LV_PROFILER_MULTEX_UNLOCK
#endif
/**********************
* TYPEDEFS
**********************/
/**
* @brief Structure representing a built-in profiler item in LVGL
*/
typedef struct {
char tag; /**< The tag of the profiler item */
uint32_t tick; /**< The tick value of the profiler item */
const char * func; /**< A pointer to the function associated with the profiler item */
#if LV_USE_OS
int tid; /**< The thread ID of the profiler item */
int cpu; /**< The CPU ID of the profiler item */
#endif
} lv_profiler_builtin_item_t;
/**
* @brief Structure representing a context for the LVGL built-in profiler
*/
typedef struct _lv_profiler_builtin_ctx_t {
lv_profiler_builtin_item_t * item_arr; /**< Pointer to an array of profiler items */
uint32_t item_num; /**< Number of profiler items in the array */
uint32_t cur_index; /**< Index of the current profiler item */
lv_profiler_builtin_config_t config; /**< Configuration for the built-in profiler */
bool enable; /**< Whether the built-in profiler is enabled */
#if LV_USE_OS
lv_mutex_t mutex; /**< Mutex to protect the built-in profiler */
#endif
} lv_profiler_builtin_ctx_t;
/**********************
* STATIC PROTOTYPES
**********************/
static void default_flush_cb(const char * buf);
static int default_tid_get_cb(void);
static int default_cpu_get_cb(void);
static void flush_no_lock(void);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_profiler_builtin_config_init(lv_profiler_builtin_config_t * config)
{
LV_ASSERT_NULL(config);
lv_memzero(config, sizeof(lv_profiler_builtin_config_t));
config->buf_size = LV_PROFILER_BUILTIN_BUF_SIZE;
config->tick_per_sec = 1000;
config->tick_get_cb = lv_tick_get;
config->flush_cb = default_flush_cb;
config->tid_get_cb = default_tid_get_cb;
config->cpu_get_cb = default_cpu_get_cb;
}
void lv_profiler_builtin_init(const lv_profiler_builtin_config_t * config)
{
LV_ASSERT_NULL(config);
LV_ASSERT_NULL(config->tick_get_cb);
uint32_t num = config->buf_size / sizeof(lv_profiler_builtin_item_t);
if(num == 0) {
LV_LOG_WARN("buf_size must > %d", (int)sizeof(lv_profiler_builtin_item_t));
return;
}
if(config->tick_per_sec == 0 || config->tick_per_sec > LV_PROFILER_TICK_PER_SEC_MAX) {
LV_LOG_WARN("tick_per_sec range must be between 1~%d", LV_PROFILER_TICK_PER_SEC_MAX);
return;
}
/*Free the old item_arr memory*/
if(profiler_ctx) {
lv_profiler_builtin_uninit();
}
profiler_ctx = lv_malloc_zeroed(sizeof(lv_profiler_builtin_ctx_t));
LV_ASSERT_MALLOC(profiler_ctx);
profiler_ctx->item_arr = lv_malloc(num * sizeof(lv_profiler_builtin_item_t));
LV_ASSERT_MALLOC(profiler_ctx->item_arr);
if(profiler_ctx->item_arr == NULL) {
lv_free(profiler_ctx);
profiler_ctx = NULL;
LV_LOG_ERROR("malloc failed for item_arr");
return;
}
LV_PROFILER_MULTEX_INIT;
profiler_ctx->item_num = num;
profiler_ctx->config = *config;
if(profiler_ctx->config.flush_cb) {
/* add profiler header for perfetto */
profiler_ctx->config.flush_cb("# tracer: nop\n");
profiler_ctx->config.flush_cb("#\n");
}
lv_profiler_builtin_set_enable(true);
LV_LOG_INFO("init OK, item_num = %d", (int)num);
}
void lv_profiler_builtin_uninit(void)
{
LV_ASSERT_NULL(profiler_ctx);
LV_PROFILER_MULTEX_DEINIT;
lv_free(profiler_ctx->item_arr);
lv_free(profiler_ctx);
profiler_ctx = NULL;
}
void lv_profiler_builtin_set_enable(bool enable)
{
if(!profiler_ctx) {
return;
}
profiler_ctx->enable = enable;
}
void lv_profiler_builtin_flush(void)
{
LV_ASSERT_NULL(profiler_ctx);
LV_PROFILER_MULTEX_LOCK;
flush_no_lock();
LV_PROFILER_MULTEX_UNLOCK;
}
void lv_profiler_builtin_write(const char * func, char tag)
{
LV_ASSERT_NULL(profiler_ctx);
LV_ASSERT_NULL(func);
if(!profiler_ctx->enable) {
return;
}
LV_PROFILER_MULTEX_LOCK;
if(profiler_ctx->cur_index >= profiler_ctx->item_num) {
flush_no_lock();
profiler_ctx->cur_index = 0;
}
lv_profiler_builtin_item_t * item = &profiler_ctx->item_arr[profiler_ctx->cur_index];
item->func = func;
item->tag = tag;
item->tick = profiler_ctx->config.tick_get_cb();
#if LV_USE_OS
item->tid = profiler_ctx->config.tid_get_cb();
item->cpu = profiler_ctx->config.cpu_get_cb();
#endif
profiler_ctx->cur_index++;
LV_PROFILER_MULTEX_UNLOCK;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void default_flush_cb(const char * buf)
{
LV_LOG("%s", buf);
}
static int default_tid_get_cb(void)
{
return 1;
}
static int default_cpu_get_cb(void)
{
return 0;
}
static void flush_no_lock(void)
{
if(!profiler_ctx->config.flush_cb) {
LV_LOG_WARN("flush_cb is not registered");
return;
}
uint32_t cur = 0;
char buf[LV_PROFILER_STR_MAX_LEN];
uint32_t tick_per_sec = profiler_ctx->config.tick_per_sec;
while(cur < profiler_ctx->cur_index) {
lv_profiler_builtin_item_t * item = &profiler_ctx->item_arr[cur++];
uint32_t sec = item->tick / tick_per_sec;
uint32_t usec = (item->tick % tick_per_sec) * (LV_PROFILER_TICK_PER_SEC_MAX / tick_per_sec);
#if LV_USE_OS
lv_snprintf(buf, sizeof(buf),
" LVGL-%d [%d] %" LV_PRIu32 ".%06" LV_PRIu32 ": tracing_mark_write: %c|1|%s\n",
item->tid,
item->cpu,
sec,
usec,
item->tag,
item->func);
#else
lv_snprintf(buf, sizeof(buf),
" LVGL-1 [0] %" LV_PRIu32 ".%06" LV_PRIu32 ": tracing_mark_write: %c|1|%s\n",
sec,
usec,
item->tag,
item->func);
#endif
profiler_ctx->config.flush_cb(buf);
}
}
#endif /*LV_USE_PROFILER_BUILTIN*/
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