Jaydeep Shah / Mbed OS 13) SEMAPHORE_PART4_ADVANCE

SEMAPHORE ADVANCE PART 4 EXAMPLE OF COUNTING SEMAPHORE IN MBED OS FOR PROTECTING CRITICAL SECTION OF SHARED RESOURCES TARGET BOARD NUCLEO - 64 OS PLATFORM : MBED CREATED BY : JAYDEEP SHAH -- radhey04ec@gmail.com

main.cpp

Committer:
radhey04ec
Date:
2020-07-12
Revision:
0:2de8a221f1d2
Child:
1:d3e6b9a8a9c2

File content as of revision 0:2de8a221f1d2:

#include "mbed.h"
#include "rtos.h"
 
Semaphore two_slots(2);
 
void test_thread(void const *name) {
    while (true) {
        two_slots.wait();
        printf("%s\n\r", (const char*)name);  //PRINT  STRING AFTER TYPE CONVERSION
        Thread::wait(1000);  //THREAD SLEEP FOR 1 SEC
        two_slots.release();  //SEMAPHORE RELEASE
        printf("AFTER SLEEP %s\n\r", (const char*)name); //AFTER SLEEP
    }
}
 
int main (void) {
    Thread t2;
    Thread t3;
 
    t2.start(callback(test_thread, (void *)"Th 2"));  // CALL THE FUNCTION WITH CALLBACK COMMAND AND PASS STRING AS ARGUMENT
    t3.start(callback(test_thread, (void *)"Th 3"));
 
    test_thread((void *)"Th 1");
}