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同步操作将从 腾讯开源/TencentOS-tiny 强制同步,此操作会覆盖自 Fork 仓库以来所做的任何修改,且无法恢复!!!
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#include "tos_k.h"
#include "mcu_init.h"
#define STK_SIZE_TASK_RECEIVER 512
#define STK_SIZE_TASK_SENDER 512
#define PRIO_TASK_RECEIVER_HIGHER_PRIO 4
#define PRIO_TASK_RECEIVER_LOWER_PRIO (PRIO_TASK_RECEIVER_HIGHER_PRIO + 1)
#define MAIL_MAX 10
k_stack_t stack_task_receiver_higher_prio[STK_SIZE_TASK_RECEIVER];
k_stack_t stack_task_receiver_lower_prio[STK_SIZE_TASK_RECEIVER];
k_stack_t stack_task_sender[STK_SIZE_TASK_SENDER];
typedef struct mail_st {
char *message;
int payload;
} mail_t;
uint8_t mail_pool[MAIL_MAX * sizeof(mail_t)];
k_task_t task_receiver_higher_prio;
k_task_t task_receiver_lower_prio;
k_task_t task_sender;
k_mail_q_t mail_q;
extern void entry_task_receiver_higher_prio(void *arg);
extern void entry_task_receiver_lower_prio(void *arg);
extern void entry_task_sender(void *arg);
void entry_task_receiver_higher_prio(void *arg)
{
k_err_t err;
mail_t mail;
size_t mail_size;
while (K_TRUE) {
err = tos_mail_q_pend(&mail_q, &mail, &mail_size, TOS_TIME_FOREVER);
if (err == K_ERR_NONE) {
TOS_ASSERT(mail_size == sizeof(mail_t));
printf("higher: msg incoming[%s], payload[%d]\n", mail.message, mail.payload);
}
}
}
void entry_task_receiver_lower_prio(void *arg)
{
k_err_t err;
mail_t mail;
size_t mail_size;
while (K_TRUE) {
err = tos_mail_q_pend(&mail_q, &mail, &mail_size, TOS_TIME_FOREVER);
if (err == K_ERR_NONE) {
TOS_ASSERT(mail_size == sizeof(mail_t));
printf("lower: msg incoming[%s], payload[%d]\n", mail.message, mail.payload);
}
}
}
void entry_task_sender(void *arg)
{
int i = 1;
mail_t mail;
while (K_TRUE) {
if (i == 2) {
printf("sender: send a mail to one receiver, and shoud be the highest priority one\n");
mail.message = "1st time post";
mail.payload = 1;
tos_mail_q_post(&mail_q, &mail, sizeof(mail_t));
}
if (i == 3) {
printf("sender: send a message to all recevier\n");
mail.message = "2nd time post";
mail.payload = 2;
tos_mail_q_post_all(&mail_q, &mail, sizeof(mail_t));
}
if (i == 4) {
printf("sender: send a message to one receiver, and shoud be the highest priority one\n");
mail.message = "3rd time post";
mail.payload = 3;
tos_mail_q_post(&mail_q, &mail, sizeof(mail_t));
}
if (i == 5) {
printf("sender: send a message to all recevier\n");
mail.message = "4th time post";
mail.payload = 4;
tos_mail_q_post_all(&mail_q, &mail, sizeof(mail_t));
}
tos_task_delay(1000);
++i;
}
}
int main(void)
{
board_init();
tos_knl_init();
tos_mail_q_create(&mail_q, mail_pool, MAIL_MAX, sizeof(mail_t));
(void)tos_task_create(&task_receiver_higher_prio, "receiver_higher_prio",
entry_task_receiver_higher_prio, NULL, PRIO_TASK_RECEIVER_HIGHER_PRIO,
stack_task_receiver_higher_prio, STK_SIZE_TASK_RECEIVER, 0);
(void)tos_task_create(&task_receiver_lower_prio, "receiver_lower_prio",
entry_task_receiver_lower_prio, NULL, PRIO_TASK_RECEIVER_LOWER_PRIO,
stack_task_receiver_lower_prio, STK_SIZE_TASK_RECEIVER, 0);
(void)tos_task_create(&task_sender, "sender", entry_task_sender, NULL,
5, stack_task_sender, STK_SIZE_TASK_SENDER, 0);
tos_knl_start();
}
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