83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
// This is a personal academic project. Dear PVS-Studio, please check it.
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// PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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#include "test_sync.h"
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#define TOTAL_PAIR_PROCESSES 2
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#define SEM_ID "sem"
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#define ITERS "2000"
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static int global;
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void slowInc(int *p, int inc){
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int aux = *p;
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aux += inc;
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sys_quitCPU();
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*p = aux;
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}
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void inc(int argc, char ** argv) {
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if (argc != 4) {
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printStringLen("inc recibe 4 argumentos\n", 25);
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sys_exit();
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return;
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}
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uint64_t semDir = (uint64_t) atoi(argv[1], 14);
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int64_t value = atoi(argv[2], 10);
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uint64_t N = atoi(argv[3], 10);
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uint64_t i;
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for (i = 0; i < N; i++){
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if (semDir) sys_semWait((sem_t *) semDir);
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slowInc(&global, value);
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if (semDir) sys_semPost((sem_t *) semDir);
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}
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char buffer[10] = {0};
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printStringLen("Final value: ", 14);
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printStringLen(itoa(global, buffer, 10), 10);
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newline();
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sys_exit();
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}
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void test_sync(int argc, char ** argv){
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uint64_t i;
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global = 0;
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printStringLen("CREATING PROCESSES...(WITH SEM)\n", 33);
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sem_t * sem = sys_semOpen(SEM_ID, 1);
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char semDir[10] = {0};
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itoa((uint64_t) sem, semDir, 10);
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for(i = 0; i < TOTAL_PAIR_PROCESSES; i++){
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char * argv1[] = {"inc", semDir, "1", ITERS};
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char * argv2[] = {"inc", semDir, "-1", ITERS};
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sys_loadProcess(inc, 0, 4, argv1, NULL);
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sys_loadProcess(inc, 0, 4, argv2, NULL);
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}
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sys_wait();
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sys_semClose(sem);
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sys_exit();
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}
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void test_no_sync(int argc, char ** argv){
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uint64_t i;
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global = 0;
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printStringLen("CREATING PROCESSES...(WITHOUT SEM)\n", 36);
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for(i = 0; i < TOTAL_PAIR_PROCESSES; i++){
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char * argv1[] = {"inc", "0", "1", ITERS};
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char * argv2[] = {"inc", "0", "-1", ITERS};
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sys_loadProcess(inc, 0, 4, argv1, NULL);
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sys_loadProcess(inc, 0, 4, argv2, NULL);
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}
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sys_exit();
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}
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