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libipc-old/drop/open-read-close-fifo.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
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int32_t main(int32_t argc, char * argv[])
{
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(void) argc;
(void) argv;
char *fifopathin = "/tmp/123000-1-in";
size_t msize = 100;
char buf[BUFSIZ];
FILE *in = fopen (fifopathin, "rb");
printf ("opened\n");
if ((msize = fread (buf, msize, 1, in))) {
printf ("error read %ld\n", msize);
return EXIT_FAILURE;
}
printf ("%s\n", buf);
sleep (10);
printf ("read end\n");
fclose (in);
return EXIT_SUCCESS;
}