qlkzy · August 29, 2015 13:57
diff --git a/reader.c b/reader.c
 #include <stdio.h>
 #include <assert.h>

 int main()
 {
    const char *myfifo = "/var/myfifo";
    FILE *fifoin = fopen(myfifo, "r");;
    int c;

    assert(fifoin);
    
    for (;;) {
        while(c = fgetc(fifoin), c != EOF) {
            printf("%02x ", c);
        }
        fflush(stdout);
    }
 }
diff --git a/writer.c b/writer.c
 #include <fcntl.h>
 #include <unistd.h>
 #include <stdio.h>
 
 char notes[12] = {0x90, 36, 0x7F, 0x90, 40, 0x7F, 0x90, 43, 0x7F, 0x90, 40, 0x7F};
 
 int main ()
 {
    int fd = open("/var/myfifo", O_WRONLY | O_NONBLOCK);
 
    write(fd, notes, sizeof(notes));
 
    return 0;
 }
	#include <fcntl.h>
	#include <unistd.h>
	#include <stdio.h>

	char notes[12] = {0x90, 36, 0x7F, 0x90, 40, 0x7F, 0x90, 43, 0x7F, 0x90, 40, 0x7F};

	int main ()
	{
	int fd = open("/var/myfifo", O_WRONLY \| O_NONBLOCK);

	write(fd, notes, sizeof(notes));

	return 0;
	}
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