forked from KolibriOS/kolibrios
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* This is an example program for sending a message through a "pipe".
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* Created by turbocat (Maxim Logaev) 2022.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ksys.h>
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#define TH_STACK_SIZE 1024
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#define MESSAGE_SIZE 12
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ksys_colors_table_t sys_colors;
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int pipefd[2];
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char* send_message = "HELLO PIPE!";
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void tmain()
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{
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char recv_message[MESSAGE_SIZE];
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_ksys_posix_read(pipefd[0], recv_message, MESSAGE_SIZE);
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printf("RECV: %s\n", recv_message);
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assert(!strcmp(recv_message, send_message));
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puts("Successful pipe test");
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exit(0);
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}
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void create_thread(void)
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{
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unsigned tid; // New thread ID
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void* th_stack = malloc(TH_STACK_SIZE); // Allocate memory for thread stack
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if (!th_stack) {
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puts("Memory allocation error for thread!");
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return;
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}
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tid = _ksys_create_thread(tmain, th_stack + TH_STACK_SIZE); // Create new thread with entry "main"
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if (tid == -1) {
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puts("Unable to create a new thread!");
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return;
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}
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printf("New thread created (TID=%u)\n", tid);
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}
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void main()
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{
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if (_ksys_posix_pipe2(pipefd, 0)) {
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puts("Pipe creation error!");
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return;
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}
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printf("SEND: %s\n", send_message);
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_ksys_posix_write(pipefd[1], send_message, MESSAGE_SIZE);
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create_thread();
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}
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